Dental PlaqueNCT04025684
Efficacy of Manual Toothbrushes in Removing Dental Plaque
A study testing Oral B Indicator 123, Dr Best Original and Dr Best Multi Expert in people with Dental Plaque and Oral Hygiene, run by GlaxoSmithKline at 1 site in United Kingdom.
Trial summary
This clinical methodology development study will evaluate the plaque removal efficacy of four marketed manual toothbrushes, with differing bristle types and brush head designs, in healthy dentate participants. Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Plaque, Oral Hygiene
- What is being tested?
- Oral B Indicator 123, Dr Best Original and Dr Best Multi Expert
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- 30 Sep 2019to 10 Dec 2019
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- An individual must meet all the following inclusion criteria to be eligible for enrollment into the study.
- Participant provision of a signed and dated informed consent document indicating that the participant has been informed of all pertinent aspects of the study before any assessment is performed.
- A participant who is willing and able to comply with scheduled visits, treatment plan and other study procedures.
- A participant in good general, mental and oral health with, in the opinion of the investigator or medically qualified designee, no clinically significant or relevant abnormalities in medical history or upon oral examination, or condition, that would impact the participant's safety, well-being or the outcome of the study, if they were to participate in the study, or affect the individual's ability to understand and follow study procedures and requirements.
- A participant with, in the opinion of the investigator or medically qualified designee, satisfactory oral hygiene based on oral examination.
- A participant who routinely uses a manual toothbrush for daily oral hygiene.
- VISIT 1 (Screening): A participant must have a) ≥ 20 natural, permanent teeth b) ≥ 40 gradable tooth surfaces (≥ 2/3rds of the tooth surface assessable for RPI).Third molars, fully crowned/ extensively restored, grossly carious, orthodontically-banded/bonded or abutment teeth and surfaces with calculus deposits which, in the opinion of the clinical examiner, would interfere with plaque assessment should not be included in the gradable surface count. Third molars can be included if, as a result tooth loss, they are functioning as second molars.
- VISIT 2 (Baseline): A participant must have a pre-brushing mean RPI ≥ 0.6 overall (that is, the mean over all gradable surfaces)
Who cannot join
- An individual who meets any of the following exclusion criteria will not be eligible for enrollment into the study.
- A participant who is an employee of the investigational site, either directly involved in the conduct of the study or otherwise supervised by the investigator, or a member of their immediate family; or a GSK CH employee directly involved in the conduct of the study or a member of their immediate family.
- A participant who has participated in other studies (including non-medicinal studies) involving investigational product(s) in the 30 days prior to study entry and/or who is participating in other studies during study participation.
- A participant with, in the opinion of the investigator or medically qualified designee, an acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator or medically qualified designee, would make the participant inappropriate for entry into this study.
- A participant with any medical/oral condition which, in the opinion of the investigator or medically qualified designee, could impact study outcomes (for example, oral dryness).
- A participant taking daily doses of medication/having daily treatments which, in the opinion of the investigator or medically qualified designee, could impact study outcomes (for example, is causing oral dryness).
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- A participant with any condition or physical limitation which, in the opinion of the investigator or medically qualified designee, impacts their ability to perform oral hygiene with a manual toothbrush.
- A participant who is pregnant (self-reported; no pregnancy test required) or intending to become pregnant over the course of the study.
- A participant who is breastfeeding.
- A participant with known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients.
- A participant who is unwilling or unable to comply with the following Lifestyle Considerations described in this protocol: 1) Dental Product/Treatment and Oral Hygiene Restrictions i)From Screening (Visit 1) to the Participant's Last Study Visit: a) Participants should not use any other oral care products (for example, toothpastes, toothbrushes, oral rinses, tongue cleaners, whitening/bleaching products, inter-dental cleaning products)than those provided during the study. Note: dental floss (non-antibacterial) can be used to remove impacted food; b) Participants should not chew gum or consume any confectionery containing xylitol (e.g. sugar-free mints); c) Participants should delay any non-emergency dental treatment until after study completion (including dental prophylaxis); d)Participants should delay any tooth whitening treatments (professional and/or home use) until after study completion; ii) Before Clinical Efficacy Assessment Visits (Visits 2-4): Participants should refrain from oral hygiene procedures for 12-18 hours before their visit; 2) Meals and Dietary Restrictions i) Before Clinical Efficacy Assessment Visits (Visits 2-4): Participants should not eat or drink for ≥ 1 hour before their visit and until all visit procedures have been completed.
- A participant who has had routine dental prophylaxis within 4 weeks of Screening.
- A participant who has undergone a tooth bleaching procedure within 8 weeks of Screening.
- A participant with, in the opinion of the investigator or medically qualified designee, generalized moderate/severe gingivitis.
- A participant with, in the opinion of the investigator or medically qualified designee, gross periodontal disease.
- A participant with, in the opinion of the investigator or medically qualified designee, signs of active periodontitis.
- A participant with a Basic Periodontal Examination (BPE) score ≥ 3 in any sextant.
- A participant who has undergone treatment for periodontal disease within 12 months of Screening, including scaling and/or root surface debridement.
- A participant who is currently undergoing treatment for periodontal disease, including scaling and/or root surface debridement.
- A participant with active caries which, in the opinion of the investigator or medically qualified designee, could impact study outcomes or the oral health of the participant if they were to participate in the study.
- A participant with, in the opinion of the investigator or medically qualified designee, evidence of gross intra-oral neglect or the need for extensive dental therapy.
- A participant with restorations in a poor state of repair which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
- A participant with any dental condition (e.g. malalignment, overcrowding) which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
- A participant with high levels of extrinsic dental stain or calculus deposits which, in the opinion of the investigator or medically qualified designee, would interfere with plaque assessment or impact study outcomes.
- A participant with a tongue or lip piercing.
- A participant with multiple dental implants which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
- A participant with fixed bridge(s) or removable partial dentures.
- A participant with fixed or removable orthodontic braces/bands or a fixed orthodontic retainer.
- A participant who has had fixed or removable orthodontic braces/bands within 3 months of Screening.
- A participant who is unwilling to forgo use of an orthodontic retainer for the duration of the study, provided there would be no impact on the outcome of any previous, completed orthodontic treatment or the participant's well-being.
- VISIT 1 (Screening): A participant who has taken antibiotics within 2 weeks of Screening.
- VISIT 2 (Baseline): A participant who has taken antibiotics during the lead-in period (between Screening and Visit 2).
- Participant with a recent history (within the last year) of alcohol or other substance abuse.
- A participant who, in the opinion of the investigator or medically qualified designee, should not participate in the study.
- A participant who has previously been enrolled in this study.
Trial locations and contacts
1 site in 1 country.
United Kingdom1 site
GSK Investigational Site
Birmingham, West Midlands, B5 7EG
About this study
Official title: Randomized Controlled Examiner-Blind Methodology Development Study To Investigate The Plaque Removal Efficacy Of Manual Toothbrushes In Healthy Dentate Subjects
This clinical methodology development study will evaluate the plaque removal efficacy of four marketed manual toothbrushes, with differing bristle types and brush head designs, in healthy dentate participants. Changes in supra-gingival plaque accumulation will be assessed after first use and following 1-and 4-weeks treatment (twice-daily brushing), using two different clinical measures of dental plaque. Study participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Data generated will inform the design of future clinical studies investigating the plaque removal efficacy of manual toothbrushes.
Read the detailed description
This will be a single center, 4-week, randomized, controlled, examiner-blind, four-treatment arm, parallel design, clinical methodology development study to investigate the plaque removal efficacy of marketed manual toothbrushes in healthy, dentate participants. Changes in plaque level will be evaluated after first brushing, after two further single brushing events (Days 7 and 28) and following 7 and 28 days usage (twice daily brushing with assigned toothbrush treatment).
Supra-gingival plaque levels will be assessed using two established clinical measures: the Rustogi Modified Navy Plaque Index (RPI) and the 6-site Turesky Modified Quigley and Hein Plaque Index (TPI). Participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Participants with Day 0 pre-brushing mean RPI overall ≥ 0.6 will be stratified by their Day 0 pre-brushing RPI score (lower: mean RPI overall ≥ 0.6 to ≤ 0.8; higher: mean RPI overall; 0.8 to 1.0) and randomized to study treatment (Visit 2).
To standardize oral hygiene practice, eligible participants will complete a lead-in period (minimum 5 days) prior to Visit 2 during which they will brush with the toothbrush and regular fluoride toothpaste provided.
The safety and oral tolerability of each study toothbrush will be monitored after first use and over the 28-day usage period by review of reported treatment emergent adverse events (TEAEs).
- Conditions
- Dental Plaque, Oral Hygiene
- Being tested
- Oral B Indicator 123, Dr Best Original, Dr Best Multi Expert, parodontax Interdental
- Keywords
- Oral Hygiene
- Medical subject headings
- Dental Plaque
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Oral B Indicator 123Other
Manual toothbrush (medium bristle stiffness; compact head, UK market).
Dr Best OriginalOther
Manual toothbrush (medium bristle stiffness; regular head, German market)
Dr Best Multi ExpertOther
Manual toothbrush (medium bristle stiffness; compact head, German market)
parodontax InterdentalOther
Manual toothbrush (soft bristle stiffness; compact head, German market)
| Study group | Role | What they receive |
|---|---|---|
| Test toothbrush 1 | Other | Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 1 after applying a strip of standard fluoride (1450 parts per million [ppm] fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. Receives: Other: Oral B Indicator 123 |
| Test toothbrush 2 | Other | Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 2 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. Receives: Other: Dr Best Original |
| Test toothbrush 3 | Other | Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 3 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. Receives: Other: Dr Best Multi Expert |
| Test toothbrush 4 | Other | Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 4 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. Receives: Other: parodontax Interdental |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0
Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.
Measured: At Day 0
Change From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0
Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1millimetre [mm] or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.
Measured: At Day 0
Secondary outcomes (15)
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 and Day 28
Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 and Day 28
Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Overall Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 7 and Day 28
Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.
Measured: At Day 7 and Day 28
Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 7, and Day 28
Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.
Measured: At Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 0, Day 7 and Day 28
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) in Overall Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.
Measured: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.
Measured: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.
Measured: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Jul 2019
- Study start30 Sep 2019
- Primary completion10 Dec 2019
- Study completion10 Dec 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Dental PlaqueStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Investigator, Outcomes assessor
- Enrolment
- 80 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04025684
- Sponsor's protocol ID
- 212224
- Status last verified
- Jan 2021
- First submitted
- 17 Jul 2019
- Last updated
- 28 Jan 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: IPD for this study will be made available via the Clinical Study Data Request site.
Study at a glance
From the registry record, last updated by the sponsor on 28 Jan 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Randomized Controlled Examiner-Blind Methodology Development Study To Investigate The Plaque Removal Efficacy Of Manual Toothbrushes In Healthy Dentate Subjects
- ClinicalTrials.gov ID
- NCT04025684
- Acronym / sponsor ID
- 212224
- Conditions
- Dental Plaque, Oral Hygiene
- Keywords
- Oral Hygiene
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 80 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Study start
- 30 Sep 2019 (actual)
- Primary completion
- 10 Dec 2019 (actual)
- Study completion
- 10 Dec 2019 (actual)
- First posted
- 19 Jul 2019 (actual)
- Results
- Posted 28 Jan 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This clinical methodology development study will evaluate the plaque removal efficacy of four marketed manual toothbrushes, with differing bristle types and brush head designs, in healthy dentate participants. Changes in supra-gingival plaque accumulation will be assessed after first use and following 1-and 4-weeks treatment (twice-daily brushing), using two different clinical measures of dental plaque. Study participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Data generated will inform the design of future clinical studies investigating the plaque removal efficacy of manual toothbrushes.
Detailed description
This will be a single center, 4-week, randomized, controlled, examiner-blind, four-treatment arm, parallel design, clinical methodology development study to investigate the plaque removal efficacy of marketed manual toothbrushes in healthy, dentate participants. Changes in plaque level will be evaluated after first brushing, after two further single brushing events (Days 7 and 28) and following 7 and 28 days usage (twice daily brushing with assigned toothbrush treatment).
Supra-gingival plaque levels will be assessed using two established clinical measures: the Rustogi Modified Navy Plaque Index (RPI) and the 6-site Turesky Modified Quigley and Hein Plaque Index (TPI). Participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Participants with Day 0 pre-brushing mean RPI overall ≥ 0.6 will be stratified by their Day 0 pre-brushing RPI score (lower: mean RPI overall ≥ 0.6 to ≤ 0.8; higher: mean RPI overall; 0.8 to 1.0) and randomized to study treatment (Visit 2).
To standardize oral hygiene practice, eligible participants will complete a lead-in period (minimum 5 days) prior to Visit 2 during which they will brush with the toothbrush and regular fluoride toothpaste provided.
The safety and oral tolerability of each study toothbrush will be monitored after first use and over the 28-day usage period by review of reported treatment emergent adverse events (TEAEs).
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (investigator, outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Test toothbrush 1 | Other | Other: Oral B Indicator 123Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 1 after applying a strip of standard fluoride (1450 parts per million [ppm] fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. |
| Test toothbrush 2 | Other | Other: Dr Best OriginalParticipants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 2 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. |
| Test toothbrush 3 | Other | Other: Dr Best Multi ExpertParticipants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 3 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. |
| Test toothbrush 4 | Other | Other: parodontax InterdentalParticipants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 4 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- An individual must meet all the following inclusion criteria to be eligible for enrollment into the study.
- Participant provision of a signed and dated informed consent document indicating that the participant has been informed of all pertinent aspects of the study before any assessment is performed.
- A participant who is willing and able to comply with scheduled visits, treatment plan and other study procedures.
- A participant in good general, mental and oral health with, in the opinion of the investigator or medically qualified designee, no clinically significant or relevant abnormalities in medical history or upon oral examination, or condition, that would impact the participant's safety, well-being or the outcome of the study, if they were to participate in the study, or affect the individual's ability to understand and follow study procedures and requirements.
- A participant with, in the opinion of the investigator or medically qualified designee, satisfactory oral hygiene based on oral examination.
Key exclusion criteria (35 listed)
- An individual who meets any of the following exclusion criteria will not be eligible for enrollment into the study.
- A participant who is an employee of the investigational site, either directly involved in the conduct of the study or otherwise supervised by the investigator, or a member of their immediate family; or a GSK CH employee directly involved in the conduct of the study or a member of their immediate family.
- A participant who has participated in other studies (including non-medicinal studies) involving investigational product(s) in the 30 days prior to study entry and/or who is participating in other studies during study participation.
- A participant with, in the opinion of the investigator or medically qualified designee, an acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator or medically qualified designee, would make the participant inappropriate for entry into this study.
- A participant with any medical/oral condition which, in the opinion of the investigator or medically qualified designee, could impact study outcomes (for example, oral dryness).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Oral B Indicator 123Manual toothbrush (medium bristle stiffness; compact head, UK market). | Other | Test toothbrush 1 |
| Dr Best OriginalManual toothbrush (medium bristle stiffness; regular head, German market) | Other | Test toothbrush 2 |
| Dr Best Multi ExpertManual toothbrush (medium bristle stiffness; compact head, German market) | Other | Test toothbrush 3 |
| parodontax InterdentalManual toothbrush (soft bristle stiffness; compact head, German market) | Other | Test toothbrush 4 |
Primary outcome
Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0
Time frame: At Day 0
Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.
Change From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0
Time frame: At Day 0
Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1millimetre [mm] or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.
15 secondary outcomes
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Overall Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 7 and Day 28
Time frame: At Day 7 and Day 28
Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 7, and Day 28
Time frame: At Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 0, Day 7 and Day 28
Time frame: At Day 0, Day 7 and Day 28
Change From Baseline (Day 0 Pre-Brushing) in Overall Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jan 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Yes. IPD for this study will be made available via the Clinical Study Data Request site.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Oral B Indicator 123, Dr Best Original and Dr Best Multi Expert in people with Dental Plaque and Oral Hygiene, run by GlaxoSmithKline at 1 site in United Kingdom.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 35 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 28 Jan 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0 (time frame: At Day 0). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jan 2021.