Caries in Occlusal Surface of Primary and Permanent DetitionNCT01727804
Neodymiun:Yttrium Aluminum Garnet Laser in Caries Prevention of Primary Teeth: One-year Follow-up
A study testing Laser in caries prevention in people with Caries in Occlusal Surface of Primary and Permanent Detition, run by University of Sao Paulo at 1 site in Brazil.
Trial summary
The aim of this controlled clinical study was to evaluate the Nd:YAG laser, with or without fluoride, in prevention of occlusal caries in the primary dentition. Read more about this study
- Who is it for?
- Ages 7 to 8 yearsHealthy volunteers can take part
- Conditions the study is for
- Caries in Occlusal Surface of Primary and Permanent Detition
- What is being tested?
- Laser in caries prevention
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteBrazil
- Study dates
- Aug 2009to Nov 2012
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 7 to 8 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- subject age of 7 to 8 years, high caries risk (evaluated by oral hygiene, dietary habits and fluoride exposure, according to Kidd 2011), with the first permanent molars without caries cavities, restorations, enamel defects, morphological anomalies and/or signals of fluorosis. Subjects had to be willing to comply with all study procedures and protocols. They had to be residents of Ribeirão Preto or other nearby local communities with the same water fluoridation pattern (to eliminate water fluoridation as a potential con- founding variable). Subjects had to be healthy and the parents or the child legal guardian need to be willing to sign the "Authorization and informed consent for research" form. There were no gender restrictions.
Who cannot join
- suffering from systemic diseases, had a significant past or medical history with conditions that may affect oral health (i.e., diabetes, HIV, heart conditions that require antibiotic prophylaxis), were taking medications that may affect the oral flora or salivary flow (e.g., antibiotic use in the past three months, drugs associated with dry mouth / xerostomia), had in-office fluoride treatment within the last three months prior to being enrolled in the study, or were not willing to stop the use of any mouth rinse during the duration of the study.
Trial locations and contacts
1 site in 1 country.
Brazil1 site
School of Dentistry of Ribeirão Preto
Ribeirão Preto, São Paulo, 14040-904
About this study
Official title: Clinical Effect of Neodymiun:Yttrium Aluminum Garnet Laser in Occlusal Caries Prevention of Primary Teeth: One Year Follow up.
The aim of this controlled clinical study was to evaluate the Nd:YAG laser, with or without fluoride, in prevention of occlusal caries in the primary dentition.
Read the detailed description
The aim of this controlled clinical study was to evaluate the Neodymiun:yttrium aluminum garnet laser, with or without fluoride, in prevention of occlusal caries in the primary dentition. High caries risk children (7.6±1.4 years) were selected for this study and received the following treatments: G1-1st molar was negative control, and the 2nd molar received a resin sealant; G2-1st molar was negative control, and the 2nd molar received laser irradiation (100 milliJoule, 5 Hertz - 0.5 Watts); G3-1st molar received only fluoride gel and the 2nd molar received fluoride gel + laser irradiation; G4-1st molar received only fluoride varnish and the 2nd molar received fluoride varnish + laser irradiation. Patients were followed up to 12 months to evaluate the formation of white-spot lesions and/or caries cavities by three calibrated observers.
- Being tested
- Laser in caries prevention
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Laser in caries preventionOther
| Study group | Role | What they receive |
|---|---|---|
| Laser | Experimental | Not described Receives: Other: Laser in caries prevention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Clinical evaluation of the presence of dental caries on tooth occlusal surface
The clinical evaluation of the volunteers was performed 1, 3, 6, 9 and 12 months after treatment application by three different calibrated appraisers who were blind to the performed treatment.
The clinical and radiographic assessments of the caries lesions were recorded using the clinical criteria described by Chu et al.,(2009), which was adapted from Ekstrand's visual scoring system, and the sealant evaluation was adapted from Beiruti et al.,(2006)
The units of measure are: The scores obtained were considered as the following: V0, V1 and/or R0 represented sound teeth(with no need for restorative treatment), which were assigned a score of 0; V3, V4 and R1 to R3 represented decayed teeth(with a need for restorative treatment), which were assigned a score of 1. Considering the sealant scores, if the tooth evaluated presented with a caries lesion, it was considered to be a decayed tooth(with a need for treatment), regardless the sealant retention status.
Measured: up to 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Nov 2012 (estimated)
- Study startAug 2009
- Primary completionNov 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Caries in Occlusal Surface of Primary and Permanent DetitionStudies of the same condition, open and under way.
- More trials run by University of Sao PauloThe 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
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Sao Paulo
- Sponsor type
- University, hospital or other
- Collaborators
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Responsible party
- Principal investigator, Regina Guenka Palma Dibb, University of Sao Paulo
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01727804
- Sponsor's protocol ID
- Raucci-Neto
- Status last verified
- Aug 2012
- First submitted
- 8 Nov 2012
- Last updated
- 16 Nov 2012
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 16 Nov 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Effect of Neodymiun:Yttrium Aluminum Garnet Laser in Occlusal Caries Prevention of Primary Teeth: One Year Follow up.
- ClinicalTrials.gov ID
- NCT01727804
- Acronym / sponsor ID
- Raucci-Neto
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- University of Sao PauloUniversity, hospital or other
- Collaborators
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Study start
- Aug 2009
- Primary completion
- Nov 2012 (actual)
- First posted
- 16 Nov 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this controlled clinical study was to evaluate the Nd:YAG laser, with or without fluoride, in prevention of occlusal caries in the primary dentition.
Detailed description
The aim of this controlled clinical study was to evaluate the Neodymiun:yttrium aluminum garnet laser, with or without fluoride, in prevention of occlusal caries in the primary dentition. High caries risk children (7.6±1.4 years) were selected for this study and received the following treatments: G1-1st molar was negative control, and the 2nd molar received a resin sealant; G2-1st molar was negative control, and the 2nd molar received laser irradiation (100 milliJoule, 5 Hertz - 0.5 Watts); G3-1st molar received only fluoride gel and the 2nd molar received fluoride gel + laser irradiation; G4-1st molar received only fluoride varnish and the 2nd molar received fluoride varnish + laser irradiation. Patients were followed up to 12 months to evaluate the formation of white-spot lesions and/or caries cavities by three calibrated observers.
Study design
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- Double blind (participant, investigator)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Laser | Experimental | Other: Laser in caries prevention |
Who may qualify
- Ages
- 7 to 8 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (1 listed)
- subject age of 7 to 8 years, high caries risk (evaluated by oral hygiene, dietary habits and fluoride exposure, according to Kidd 2011), with the first permanent molars without caries cavities, restorations, enamel defects, morphological anomalies and/or signals of fluorosis. Subjects had to be willing to comply with all study procedures and protocols. They had to be residents of Ribeirão Preto or other nearby local communities with the same water fluoridation pattern (to eliminate water fluoridation as a potential con- founding variable). Subjects had to be healthy and the parents or the child legal guardian need to be willing to sign the "Authorization and informed consent for research" form. There were no gender restrictions.
Key exclusion criteria (1 listed)
- suffering from systemic diseases, had a significant past or medical history with conditions that may affect oral health (i.e., diabetes, HIV, heart conditions that require antibiotic prophylaxis), were taking medications that may affect the oral flora or salivary flow (e.g., antibiotic use in the past three months, drugs associated with dry mouth / xerostomia), had in-office fluoride treatment within the last three months prior to being enrolled in the study, or were not willing to stop the use of any mouth rinse during the duration of the study.
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 |
|---|---|---|
| Laser in caries prevention | Other | Laser |
Primary outcome
Clinical evaluation of the presence of dental caries on tooth occlusal surface
Time frame: up to 1 year
The clinical evaluation of the volunteers was performed 1, 3, 6, 9 and 12 months after treatment application by three different calibrated appraisers who were blind to the performed treatment. The clinical and radiographic assessments of the caries lesions were recorded using the clinical criteria described by Chu et al.,(2009), which was adapted from Ekstrand's visual scoring system, and the sealant evaluation was adapted from Beiruti et al.,(2006) The units of measure are: The scores obtained were considered as the following: V0, V1 and/or R0 represented sound teeth(with no need for restorative treatment), which were assigned a score of 0; V3, V4 and R1 to R3 represented decayed teeth(with a need for restorative treatment), which were assigned a score of 1. Considering the sealant scores, if the tooth evaluated presented with a caries lesion, it was considered to be a decayed tooth(with a need for treatment), regardless the sealant retention status.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Nov 2012.
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 Laser in caries prevention in people with Caries in Occlusal Surface of Primary and Permanent Detition, run by University of Sao Paulo at 1 site in Brazil.
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 1 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 16 Nov 2012. 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 Brazil. 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?
Results are not available in the source record.
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?
Clinical evaluation of the presence of dental caries on tooth occlusal surface (time frame: up to 1 year). 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 16 Nov 2012.