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InflammationNCT02956070

Anti-inflammatory Steroids in the Prevention of Tooth Sensitivity

A study testing Dexamethasone acetate and Potassium Nitrate in people with Inflammation, run by Universidade Federal Fluminense.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Clinical randomized, triple-blind, used to measure the level of tooth sensitivity on volunteers using a modified virtual analog scale (VAS). Sixty-six volunteers will be selected and recruited, following inclusion criteria and pre-established exclusion. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Inflammation
What is being tested?
Dexamethasone acetate and Potassium Nitrate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
70 participants
Where
No sites listed yet
Study dates
Oct 2015to May 2016
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • The selected volunteers should present a good general state of health, be at least 18 years of age, regardless of gender, color / race and ethnicity, sexual orientation, and gender identity.
  • Volunteers must have an acceptable oral hygiene, present the upper and lower arches without absence of teeth of first premolar right to the left first premolar.
  • These elements have to be healthy, that is, not having any kind of restoration.
  • Volunteers must sign the consent form and clarification, have committed to return for periodic examinations and belong to the group of nonsmokers.

Who cannot join

  • Do not have medical history of diseases that can affect the results of the study;
  • subjects could not have made use of cigarettes in the last 30 days; have some important pathology in the oral cavity;
  • not being pregnant and also are not breastfeeding;
  • having any history of sensitivity or adverse reactions to anti-inflammatory used in the study;
  • not having calculations or advanced periodontal disease;
  • have not consumed drugs, alcohol or any medication that can cover the results, as other types of anti-inflammatories or painkillers;
  • The volunteers should not have used products indicated for dental sensitivity, as desensitizing toothpaste or similar product and not present recession or exacerbated hypersensitivity history.

About this study

Official title: Evaluation of Anti-inflammatory Steroids of Use in the Prevention of Tooth Sensitivity in Teeth Whitening Technique Office

Clinical randomized, triple-blind, used to measure the level of tooth sensitivity on volunteers using a modified virtual analog scale (VAS). Sixty-six volunteers will be selected and recruited, following inclusion criteria and pre-established exclusion. All volunteers will be guided and sign a term of clarification and consent. Volunteers will be randomly divided into two groups: the control group to receive placebo capsules and application of desensitizing gel containing 6% potassium nitrate and 0.10% fluoro- (conventional treatment) and the experimental group will receive the anti-inflammatory corticosteroids (dexamethasone, capsule - 8mg) and application of a placebo gel. Patients will be treated in two clinical sessions with an interval of 7 days (one week) between them. The protocol for use of the product is as follows: The volunteers in the experimental group will receive six capsules of dexamethasone 8 mg each to be administered orally, initially two days before the first bleaching query as follows: 8 mg (1 capsule) 9 am in the morning two days before the first clinical session whitening; 8 mg (1 capsule) the 9 am to 1 day before the first practice session whitening, 8 mg (1 capsule) to 9 am on the day of the first practice session of whitening. After 7 days (one week), the same protocol will be held for the second and final practice session office bleaching.

Read the detailed description

The experimental design will follow the consolidated standards for test reports (CONSORT). After approval by the Ethics Committee for Research duly registered, the trial will be conducted in the clinic of dental school at the Federal Fluminense University located in Nova Friburgo.Every Health Institute participants will be informed about the nature and objectives of the study.It will be one test study Clinical randomized, parallel, triple-blind, used to measure the level of tooth sensitivity volunteers using a modified virtual analog scale (VAS). Sixty-six volunteers will be selected and recruited, following inclusion criteria and pre-established exclusion. All volunteers will be guided and sign a term of clarification and consent. Volunteers will be randomly divided into two groups: the control group to receive placebo capsules and application of desensitizing gel containing 6% potassium nitrate and 0.10% fluoro- (conventional treatment) and the experimental group will receive the anti-inflammatory corticosteroids (dexamethasone, capsule - 8mg) and application of a placebo gel. Patients will be treated in two clinical sessions with an interval of 7 days (one week) between them. The protocol for use of the product is as follows: The volunteers in the experimental group will receive six capsules of dexamethasone 8 mg each to be administered orally, initially two days before the first bleaching query as follows: 8 mg (1 capsule) 9 am in the morning two days before the first clinical session whitening; 8 mg (1 capsule) the 9 am to 1 day before the first practice session whitening, 8 mg (1 capsule) to 9 am on the day of the first practice session of whitening. After 7 days (one week), the same protocol will be held for the second and final practice session office bleaching.

Conditions
Inflammation
Being tested
Dexamethasone acetate, Potassium Nitrate
Keywords
dental bleaching, antiinflammatory, tooth sensitivity
Medical subject headings
Inflammation, Dentin Sensitivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dexamethasone acetateDrug

    Also called Dexamethasone

    The volunteers in the Dexamethasone acetate group (experimental group) will receive six capsules of dexamethasone 8 mg each to be administered orally, initially two days before the first bleaching query as follows: 8 mg (1 capsule) 9 am two days before the first clinical session whitening; 8 mg (1 capsule) the 9 am to 1 day before session whitening, 8 mg (1 capsule) to 9 am on the day of the first session of whitening.Clinical intervention: 1- Dry teeth and apply Gingival Barrier to both arches. 2- Light cure. 3- Firmly attach a mixing nozzle to the Pola Office+. 4- Apply a thin layer of gel to all teeth undergoing treatment. 5- Leave gel on for 8 minutes. 6- Suction it off. 7- Repeat steps 5-6 twice times. 8- After the last application, suction all the gel off, then wash and apply suction. 9- Remove Gingival Barrier. 10- A placebo gel will be applied with a brush on the labial surface of the teeth whitened for 2 to 3 minutes .

  • Potassium NitrateDrug

    Also called Smoothe SDI

    The volunteers in the Potassium Nitrate Group (Placebo group) will receive 6 placebo capsules, who contained the same components of de dexamethasone drug except the active ingredient (starch [50%], lactose monohydrate [35%], dibasic calcium phosphate [14%], and magnesium stearate [1%]).Clinical session:1- Dry teeth and apply Gingival Barrier to both arches. 2- Light cure. 3- Firmly attach a mixing nozzle to the Pola Office+. 4- Apply a thin layer of gel to all teeth undergoing treatment. 5- Leave gel on for 8 minutes. 6- Suction it off. 7- Repeat steps 5-6 twice times. 8- After the last application, suction all the gel off, then wash and apply suction. 9- Remove Gingival Barrier. 10- A desensitizing gel containing 6% potassium nitrate will be applied with a brush on the labial surface of the teeth whitened for 2 to 3 minutes .

Study groups in NCT02956070
Study groupRoleWhat they receive
ExperimentalExperimental35 patients in this group will undergo the whitening procedure using the Dexamethasone acetate intervention.
Receives: Drug: Dexamethasone acetate
PlaceboPlacebo comparator35 patients in this group will undergo the whitening procedure using the Potassium Nitrate intervention
Receives: Drug: Potassium Nitrate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Visual Analogic Scale (0-100) for Tooth Sensibility.

    The investigators evaluated the tooth sensibility 1 hour post-bleaching. Scale from 0-100 0 means no sensibility 100 means maximum sensibility

    Measured: One hour

  2. Visual Analogic Scale(0-100) for Tooth Sensibility.

    The investigators evaluated the tooth sensibility 24 hours post-bleaching. Scale from 0-100 0 means no sensibility 100 means maximum sensibility

    Measured: Twenty four hours

  3. Visual Analogic Scale(0-100) for Tooth Sensibility.

    The investigators evaluated the tooth sensibility 48 hours post-bleaching. Scale from 0-100 0 means no sensibility 100 means maximum sensibility

    Measured: Forty eight hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 2016 (estimated)
  2. Study startOct 2015
  3. Primary completionMay 2016
  4. Study completionMay 2016

Resources

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
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
70 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02956070
Sponsor's protocol ID
bleaching
Status last verified
Nov 2020
First submitted
25 Oct 2016
Last updated
25 Nov 2020
Data monitoring committee
No
Individual data sharing
No

Publications

  • Carey CM. Tooth whitening: what we now know. J Evid Based Dent Pract. 2014 Jun;14 Suppl:70-6. doi: 10.1016/j.jebdp.2014.02.006. Epub 2014 Feb 13.

    PubMed 24929591
  • de Paula EA, Loguercio AD, Fernandes D, Kossatz S, Reis A. Perioperative use of an anti-inflammatory drug on tooth sensitivity caused by in-office bleaching: a randomized, triple-blind clinical trial. Clin Oral Investig. 2013 Dec;17(9):2091-7. doi: 10.1007/s00784-013-0918-2. Epub 2013 Jan 31.

    PubMed 23371755
  • de Paula EA, Kossatz S, Fernandes D, Loguercio AD, Reis A. Administration of ascorbic acid to prevent bleaching-induced tooth sensitivity: a randomized triple-blind clinical trial. Oper Dent. 2014 Mar-Apr;39(2):128-35. doi: 10.2341/12-483-C. Epub 2013 Jun 26.

    PubMed 23802640
  • de Paula EA, Nava JA, Rosso C, Benazzi CM, Fernandes KT, Kossatz S, Loguercio AD, Reis A. In-office bleaching with a two- and seven-day intervals between clinical sessions: A randomized clinical trial on tooth sensitivity. J Dent. 2015 Apr;43(4):424-9. doi: 10.1016/j.jdent.2014.09.009. Epub 2014 Sep 23.

    PubMed 25257824
  • Bonafe E, Loguercio AD, Reis A, Kossatz S. Effectiveness of a desensitizing agent before in-office tooth bleaching in restored teeth. Clin Oral Investig. 2014 Apr;18(3):839-45. doi: 10.1007/s00784-013-1055-7.

    PubMed 23959376
  • Bonafe E, Bacovis CL, Iensen S, Loguercio AD, Reis A, Kossatz S. Tooth sensitivity and efficacy of in-office bleaching in restored teeth. J Dent. 2013 Apr;41(4):363-9. doi: 10.1016/j.jdent.2013.01.007. Epub 2013 Jan 26.

    PubMed 23357647
  • Faria-E-Silva AL, Nahsan FP, Fernandes MT, Martins-Filho PR. Effect of preventive use of nonsteroidal anti-inflammatory drugs on sensitivity after dental bleaching: a systematic review and meta-analysis. J Am Dent Assoc. 2015 Feb;146(2):87-93.e1. doi: 10.1016/j.adaj.2014.10.007.

    PubMed 25637206
  • He LB, Shao MY, Tan K, Xu X, Li JY. The effects of light on bleaching and tooth sensitivity during in-office vital bleaching: a systematic review and meta-analysis. J Dent. 2012 Aug;40(8):644-53. doi: 10.1016/j.jdent.2012.04.010. Epub 2012 Apr 21.

    PubMed 22525016
  • Vadivelu N, Mitra S, Schermer E, Kodumudi V, Kaye AD, Urman RD. Preventive analgesia for postoperative pain control: a broader concept. Local Reg Anesth. 2014 May 29;7:17-22. doi: 10.2147/LRA.S62160. eCollection 2014.

    PubMed 24872720
  • Li Y, Greenwall L. Safety issues of tooth whitening using peroxide-based materials. Br Dent J. 2013 Jul;215(1):29-34. doi: 10.1038/sj.bdj.2013.629.

    PubMed 23846062
  • Markowitz K. Pretty painful: why does tooth bleaching hurt? Med Hypotheses. 2010 May;74(5):835-40. doi: 10.1016/j.mehy.2009.11.044. Epub 2009 Dec 31.

    PubMed 20045265
  • Costa CA, Riehl H, Kina JF, Sacono NT, Hebling J. Human pulp responses to in-office tooth bleaching. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Apr;109(4):e59-64. doi: 10.1016/j.tripleo.2009.12.002.

    PubMed 20303048
  • Rhen T, Cidlowski JA. Antiinflammatory action of glucocorticoids--new mechanisms for old drugs. N Engl J Med. 2005 Oct 20;353(16):1711-23. doi: 10.1056/NEJMra050541. No abstract available.

    PubMed 16236742
  • Bamgbose BO, Akinwande JA, Adeyemo WL, Ladeinde AL, Arotiba GT, Ogunlewe MO. Effects of co-administered dexamethasone and diclofenac potassium on pain, swelling and trismus following third molar surgery. Head Face Med. 2005 Nov 7;1:11. doi: 10.1186/1746-160X-1-11.

    PubMed 16274480
  • Paula E, Kossatz S, Fernandes D, Loguercio A, Reis A. The effect of perioperative ibuprofen use on tooth sensitivity caused by in-office bleaching. Oper Dent. 2013 Nov-Dec;38(6):601-8. doi: 10.2341/12-107-C. Epub 2013 Apr 15.

    PubMed 23586657

Questions about this trial

What is this clinical trial studying?

A study testing Dexamethasone acetate and Potassium Nitrate in people with Inflammation, run by Universidade Federal Fluminense.

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 4 inclusion and 7 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 25 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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 25 Nov 2020). 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?

Visual Analogic Scale (0-100) for Tooth Sensibility. (time frame: One hour). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02956070, which also lists 19 linked publications.

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 25 Nov 2020.

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