Tooth sensitivity induced by external tooth whitening
Conditions
Interventions
30 people will be selected to participate in the study. First, a lip retractor (Arcflex, FGM Dental Products, Joinville, Brazil) and a light curing gingival barrier (Top Dam, FGM Dental Products, Join
E06.420.750
Sponsors
Universidade Estadual do Oeste do Paraná
Universidade Estadual do Oeste do Paraná
Eligibility
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: Good general and oral health; 18 to 50 years old; have at least six upper anterior teeth free of caries, restorations or endodontic treatment; canines shade A2 or darker as assessed by the VITA shade scale (VITA Classical Shade, VITA Zahnfabrik, Bad Säckingen, Germany).
Exclusion criteria
Exclusion criteria: Orthodontic appliances; dental prosthetics; severe internal tooth discoloration; pulped teeth; pregnant and nursing women; patients with bruxism or any pathology that may cause sensitivity; recession; dentin exposure; visible cracks; patients who use anti-inflammatory drugs or analgesics; patients who underwent tooth whitening.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The purpose of this research is to prevent tooth sensitivity arising from external tooth whitening, using the aforementioned desensitizing agents. As a way of assessing such an outcome, it will be as follows: patients will be instructed to complete a form for recording dental sensitivity immediately after bleaching, within 1 hour, 24 hours, and 48 hours after bleaching. Patients will be instructed in detail on how to perform the procedure. These forms will be returned to the researcher in the reevaluation that will be carried out 1 week later. For the five-point numerical rating scale, the patient will be asked to indicate the numerical value of the degree of sensitivity for each of the periods mentioned above (1 hour, 24 hours and 48 hours), where 0 means non-sensitivity, 1 mild, 2 moderate, 3 considerable and 4 high tooth sensitivity. In addition, participants will be instructed to record the intensity of pain using a visual analog scale. This scale consists of a 10 cm horizontal line with scores of 0 and 10 at its ends, where 0 means no sensitivity and 10 means severe tooth sensitivity. The patient should mark with a vertical line crossing the horizontal line of the tooth sensitivity intensity scale. Then, the distance in millimeters from the zero end will be measured with the aid of a millimeter ruler. The data were merged for statistical purposes. For this purpose, the worst score and the highest numerical value of the whitening session in each period will be assessed for data analysis. If the participant scores 0 (no sensitivity) in all evaluations, this participant will be considered insensitive to the whitening protocol. In all other circumstances, participants will be considered to have tooth sensitivity induced by bleaching. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes are not expected. | — |
Countries
Brazil
Contacts
Public ContactClínica de Odontologia UNIOESTE
Outcome results
None listed