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Dentin SensitivityNCT05309967

Effect of Glutaraldehyde-based Desensitizer in the Control of Tooth Sensitivity and Tooth Color Post- Whitening

A study testing GLUMA DESINSITIZER in people with Dentin Sensitivity, run by Universidade Federal do Para at 1 site in Brazil.

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

Tooth whitening is one of the most indicated aesthetic procedures in dentistry and there is evidence that it interferes with aspects of patients' quality of life. However, the sensitivity, associated with the post-procedure period, challenges clinicians and researchers. Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Dentin Sensitivity
What is being tested?
GLUMA DESINSITIZER
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
25 participants
Where
1 siteBrazil
Study dates
13 Mar 2021to 30 Jan 2023
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 18 to 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • healthy incisors, canines and premolars;
  • Do not having a diagnosis of dental hypersensitivity.
  • Do not have been at desensitizing treatment in the past two years.
  • Do not have been done dental whitening treatment.

Who cannot join

  • Patients undergoing orthodontic treatment;
  • Presence of periodontal disease;
  • Presence of cracks or fractures in the teeth
  • Presence of restorations and prostheses in anterior teeth;
  • Presence of extensive restorations and/or deep in molars;
  • Patients with serious dental darkening internal or external ;
Show all 9Show fewer
  • Presence of exposed dentin.
  • Pregnant and lactating women.
  • Patients on active treatment whom are using anti-inflammatory drugs and painkillers.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Raissa Araujo de Mesquita

    Belém, Pará, 66087680

Other trials in Brazil

About this study

Official title: Effect of Glutaraldehyde-based Desensitizer in the Control of Tooth Sensitivity and Tooth Color Post- Whitening : a Randomized, Single Blind and Split Mouth Clinical Trial.

Tooth whitening is one of the most indicated aesthetic procedures in dentistry and there is evidence that it interferes with aspects of patients' quality of life. However, the sensitivity, associated with the post-procedure period, challenges clinicians and researchers. The use of topic desensitizing agents could be a alternative for the control of this adverse effects of bleaching agents. The objective of this randomized clinical study, therefore, is to evaluate the effect of glutaraldehyde-based desensitizing agent associated on tooth sensitivity and tooth color after bleaching with 35% hydrogen peroxide. 25 patients will be selected divided into two groups for a double-blind and split-mouth study. Among the results it is expected: that the use of glutaraldehyde desensitizing agent helps in the control of post-bleaching sensitivity, without harming the final color obtained of patients submitted to the proposed clinical protocol.

Read the detailed description

Tooth whitening will be performed in 3 sessions with an interval of 7 days. Desensitizing agent and placebo will be applied in all sessions in a split mouth design . All groups will receive in-office bleaching treatment according to the steps described below:1 Prophylaxis; 2- Application of gingival barrier; 3- Application of the desensitizing product or placebo in accordance with the established groups; 4- Handling the bleaching material following the manufacturer's instructions: applications of whiteness HP35% bleaching gel for 15 minutes each, totaling 45 minutes; 5- Final removal of the whitening gel and the gingival barrier followed by washing with water.

Application of the desensitizer or its placebo (step 3) will follow the following sequence:1. Relative insulation with cotton rolls; 2- Active application of the product on the buccal surfaces of all teeth with the aid of a Microbrush for 10 seconds.; 3- Wait 60 seconds and apply a light jet of air until the tooth surface is no longer shiny; 4- Wash with water for 10 seconds.

To assess the patient's perception of pain, participants will be provided with a questionnaire to be filled out daily for 21 days from the first whitening treatment session. The criteria are based on the personal perception of the pain threshold, related to the level of sensitivity caused by bleaching treatment. The visual analogue scale (VAS) will be adopted as a reference. Numerical scale on which the number 0 (zero) corresponds to total absence of pain and 10 (ten) to maximum bearable pain.

The color records of the bleached teeth will be performed by a single evaluator who will do it session :T0- baseline, T1- a week after the first session; T2- a week after the second session; T3- a week after the third session. An area of interest for color registration will be the middle third of the buccal surface of the teeth, following the the guidelines of the American Dental Association. Visual analysis will be performed using a Vita Classical scale following a color scale order organized by value. A second color analysis will be performed with the aid of a spectrophotometer that acts according to the CIELab and CIEDE 2000 system. The region for color evaluation with the Easyshade will be standardized as the middle third of the buccal surface of the anterior teeth.

Being tested
GLUMA DESINSITIZER, PLACEBO
Keywords
Tooth Bleaching, dentin adhesives, tooth sensitivity
Medical subject headings
Dentin Sensitivity

What participants receive

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

  • GLUMA DESINSITIZEROther

    GLUTARALDEHYDE

  • PLACEBOOther

    DESTILLED WATER

Study groups in NCT05309967
Study groupRoleWhat they receive
GLUMAExperimentalGlutaraldehyde + Hydroxyethyl methacrylate (GLUMA® Desensitizer)
Receives: Other: GLUMA DESINSITIZER
PLACEBOPlacebo comparatorDISTILLED WATER
Receives: Other: PLACEBO

What is being measured

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

  1. Use of glutaraldehyde based material with or without low level laser therapy in tooth sensitivity during whitening protocol with 35 % hydrogen peroxide.

    Self-reported pain intensity will be assessed daily, during 21 days, through self-perception questionnaire, answered by the patients from the first tooth bleaching session until one week after the last session. The evaluation will be performed by each patient, according to a numeric visual analog scale, as follows: 0 - 10. Where 0 correspond to no pain and 10 the most severe pain that patient have been ever identified

    Measured: Patients will be evaluated during 21 days.

  2. Use of glutaraldehyde based material with or without low level laser therapy in patient´s quality of life after whitening protocol with 35 % hydrogen peroxide.

    A questionnaire will be applied before the bleaching treatment, after the completion of the bleaching treatment and 6 months after bleaching as a follow up

    Measured: 6 months

Timeline

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

  1. First posted4 Apr 2022
  2. Study start13 Mar 2021
  3. Primary completion31 Dec 2022
  4. Study completion30 Jan 2023

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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
It is a split mouth study composed of two groups randomized between left and right sides.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05309967
Sponsor's protocol ID
UFpara-0012
Status last verified
Feb 2023
First submitted
15 Mar 2022
Last updated
28 Feb 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • de Paula B, Alencar C, Ortiz M, Couto R, Araujo J, Silva C. Effect of photobiomodulation with low-level laser therapy combined with potassium nitrate on controlling post-bleaching tooth sensitivity: clinical, randomized, controlled, double-blind, and split-mouth study. Clin Oral Investig. 2019 Jun;23(6):2723-2732. doi: 10.1007/s00784-018-2715-4. Epub 2018 Oct 25.

    PubMed 30361793
  • Shulman JD, Maupome G, Clark DC, Levy SM. Perceptions of desirable tooth color among parents, dentists and children. J Am Dent Assoc. 2004 May;135(5):595-604; quiz 654-5. doi: 10.14219/jada.archive.2004.0247.

    PubMed 15202751
  • Alkhatib MN, Holt R, Bedi R. Prevalence of self-assessed tooth discolouration in the United Kingdom. J Dent. 2004 Sep;32(7):561-6. doi: 10.1016/j.jdent.2004.06.002.

    PubMed 15386863
  • Rezende M, Loguercio AD, Kossatz S, Reis A. Predictive factors on the efficacy and risk/intensity of tooth sensitivity of dental bleaching: A multi regression and logistic analysis. J Dent. 2016 Feb;45:1-6. doi: 10.1016/j.jdent.2015.11.003. Epub 2015 Dec 2.

    PubMed 26612623
  • Kwon SR, Wertz PW. Review of the Mechanism of Tooth Whitening. J Esthet Restor Dent. 2015 Sep-Oct;27(5):240-57. doi: 10.1111/jerd.12152. Epub 2015 May 13.

    PubMed 25969131
  • Cardenas AFM, Maran BM, Araujo LCR, de Siqueira FSF, Wambier LM, Gonzaga CC, Loguercio AD, Reis A. Are combined bleaching techniques better than their sole application? A systematic review and meta-analysis. Clin Oral Investig. 2019 Oct;23(10):3673-3689. doi: 10.1007/s00784-019-03042-4. Epub 2019 Aug 29.

    PubMed 31468261
  • Kwon SR, Dawson DV, Schenck DM, Fiegel J, Wertz PW. Spectrophotometric Evaluation of Potassium Nitrate Penetration Into the Pulp Cavity. Oper Dent. 2015 Nov-Dec;40(6):614-21. doi: 10.2341/14-214-L. Epub 2015 Jul 7.

    PubMed 26151563
  • Klaric Sever E, Budimir Z, Cerovac M, Stambuk M, Par M, Negovetic Vranic D, Tarle Z. Clinical and patient reported outcomes of bleaching effectiveness. Acta Odontol Scand. 2018 Jan;76(1):30-38. doi: 10.1080/00016357.2017.1376111. Epub 2017 Sep 11.

    PubMed 28893130
  • Caviedes-Bucheli J, Ariza-Garcia G, Restrepo-Mendez S, Rios-Osorio N, Lombana N, Munoz HR. The effect of tooth bleaching on substance P expression in human dental pulp. J Endod. 2008 Dec;34(12):1462-5. doi: 10.1016/j.joen.2008.09.013. Epub 2008 Oct 31.

    PubMed 19026874
  • Vaz MM, Lopes LG, Cardoso PC, Souza JB, Batista AC, Costa NL, Torres EM, Estrela C. Inflammatory response of human dental pulp to at-home and in-office tooth bleaching. J Appl Oral Sci. 2016 Sep-Oct;24(5):509-517. doi: 10.1590/1678-775720160137.

    PubMed 27812622
  • Marto CM, Baptista Paula A, Nunes T, Pimenta M, Abrantes AM, Pires AS, Laranjo M, Coelho A, Donato H, Botelho MF, Marques Ferreira M, Carrilho E. Evaluation of the efficacy of dentin hypersensitivity treatments-A systematic review and follow-up analysis. J Oral Rehabil. 2019 Oct;46(10):952-990. doi: 10.1111/joor.12842. Epub 2019 Jul 12.

    PubMed 31216069
  • de Melo Alencar C, Castro da Silva R, Nogueira Araujo JL, Silva da Silveira AD, Martins Silva C. A clinical, randomized, double-blind study on the use of toothpastes immediately after at-home tooth bleaching. Am J Dent. 2017 Oct;30(5):267-271.

    PubMed 29178730
  • Moosavi H, Arjmand N, Ahrari F, Zakeri M, Maleknejad F. Effect of low-level laser therapy on tooth sensitivity induced by in-office bleaching. Lasers Med Sci. 2016 May;31(4):713-9. doi: 10.1007/s10103-016-1913-z. Epub 2016 Mar 10.

    PubMed 26964798
  • Pompeu DDS, de Paula BLF, Barros APO, Nunes SC, Carneiro AMP, Araujo JLN, Silva CM. Combination of strontium chloride and photobiomodulation in the control of tooth sensitivity post-bleaching: A split-mouth randomized clinical trial. PLoS One. 2021 Apr 28;16(4):e0250501. doi: 10.1371/journal.pone.0250501. eCollection 2021.

    PubMed 33909659
  • Diniz A, Lima S, Tavarez R, Borges AH, Pinto S, Tonetto MR, Loguercio AD, Bandeca MC. Preventive Use of a Resin-based Desensitizer Containing Glutaraldehyde on Tooth Sensitivity Caused by In-office Bleaching: A Randomized, Single-blind Clinical Trial. Oper Dent. 2018 Sep/Oct;43(5):472-481. doi: 10.2341/17-020-C. Epub 2018 Mar 23.

    PubMed 29570018

Questions about this trial

What is this clinical trial studying?

A study testing GLUMA DESINSITIZER in people with Dentin Sensitivity, run by Universidade Federal do Para 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 4 inclusion and 9 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 Feb 2023. 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. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Use of glutaraldehyde based material with or without low level laser therapy in tooth sensitivity during whitening protocol with 35 % hydrogen peroxide. (time frame: Patients will be evaluated during 21 days.). 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?

On the ClinicalTrials.gov record for NCT05309967, which also lists 20 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 28 Feb 2023; AzTrials last refreshed its copy on 7 Nov 2026.

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