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Neurosensory analysis of tooth sensitivity during at-home dental bleaching

Influence of the cold sensation threshold on the occurrence of dental sensitivity before dental bleaching

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-4m94g4
Enrollment
Unknown
Registered
2016-03-30
Start date
2012-10-10
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental sensitivity

Interventions

It was used the split mouth design in the present study. Twenty five patients were submitted to two types of at-home bleaching products, one in the right maxilar hemi-arch and the other in the left on
Other
E06.420.750

Sponsors

Faculdade de Odontologia de Araçatuba - Unesp
Lead Sponsor
Faculdade de Odontologia de Araçatuba - Unesp
Collaborator

Eligibility

Sex/Gender
Male
Age
18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Volunteers with healthy and vital maxillary teeth; no decayed teeth; no visible enamel defects; no orthodontic brackets; overall good systemic health; healthy oral soft tissue; non-smoking; pacients who have never undergone bleaching treatment.

Exclusion criteria

Exclusion criteria: Direct and indirect restorations in the maxillary anterior region; adverse reaction to peroxide; use of opioids or medications influencing neurosensory response; use of pacemaker; presence of severe dental staining (tetracycline, trauma, fluorosis, and unknown etiology); neurological diseases; chronic or acute diseases; dentine exposure.

Design outcomes

Primary

MeasureTime frame
The expected primary outcome is the intensity of tooth sensitivity. By means of the quantitative sensory method and the use of cold temperature transmitter on the tooth surface connected to a computer software. A variation of at least 5% was used in temperature changes before and after the use of the bleaching product.;The actually observed outcome was the intensity of tooth sensitivity (in degrees Celsius) recorded before, 7 days, 14 days and 21 days after the beginning of the bleaching treatments. The method used was the Quantitative Sensory Testing, which by means of a descending cold temperature transmitter positioned on the buccal surface of the tooth, provided accurate cold temperature detection by the patient. In the group bleached using 10% carbamide peroxide with potassium oxalate (desensitizing) it was observed an increase in the intensity of tooth sensitivity 7 days (16.69) 14 days (16.73) and 21 days (16.07) after the treatment, when compared with the initial values ??(11.44). In the group bleached using 10% carbamide peroxide without the addition of desensitizing, there was also an increase in the intensity of tooth sensitivity 7 days (15.77) 14 days (16.56) and 21 days (15.92) after the treatment, when compared to baseline (11.31). Thus, among the initial values ??of both groups and the values ??of times 7, 14 and 21 days there was no statistically significant difference (p <0.05), showing that the desensitizing product was not effective in reducing the intensity of tooth sensitivity.

Secondary

MeasureTime frame
No secondary outcomes were observed.

Countries

Brazil

Contacts

Public ContactAndré Briso

Faculdade de Odontologia de Araçatuba - Unesp

alfbriso@foa.unesp.br+5518 36363253

Outcome results

None listed

Source: REBEC (via WHO ICTRP)