Impact of Dietary Counseling on Efficacy of Tooth Bleaching

Not Applicable

• Conditions: Tooth Discoloration
• Interventions: Behavioral: Regular diet

• Registration Number: NCT03528356
• Lead Sponsor: Federal University of Pelotas

Brief Summary

The aim of this study will be to evaluate if subjects submitted to a white diet counseling during home dental bleaching will present better results than subjects that maintained their usual diets. Forty patients will be divided into two groups and randomly allocated to each group: usual diet (control) or white diet, avoiding dye-containing food and beverages. patients will be assessed through a food frequency questionnaire and color measurement using a spectrophotometer at baseline and six months after bleaching.

Detailed Description

Not available

Study Timeline

• Status Verified: 2018-05
• Study First Submitted: 2018-05-07
• Study First Submitted QC: 2018-05-07
• Study First Posted: 2018-05-17
• Last Update Submitted: 2018-05-29
• Study Start: 2018-05-30
• Last Update Posted: 2018-05-31
• Primary Completion: 2018-06-30
• Study Completion: 2018-07-30

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• Adults, aged 18 or higher;
• Central incisors with shade A2 or darker

Exclusion Criteria

• Undergone previous dental bleaching procedures;
• Under orthodontic treatment;
• Pregnant or lactating women.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Regular diet	Regular diet	-
White diet	Regular diet	-

Primary Outcome Measures

Name	Time	Method
Tooth color	6 months	Will be assessed using a spectrophotometer

Secondary Outcome Measures

Name	Time	Method
Food frequency questionnaire	6 months	Patients will respond to a 30 item questionnaire regarding their daily diet. A Food Frequency Questionnaire (FFQ) was constructed to evaluate the consumption of chromogenic food and beverage of patients in the last year. A list of 54 foods and beverages that, according to the literature, have the potential to cause some kind of extrinsic pigmentation, was elaborated. In each food of beverage, the individual will be asked if he consumed in the last year and if the answer is yes, the consumption frequency (0 to 10 times) per unit of time (day, week, month or year). In addition, each individual will answer regarding the amount relative to the mean portion, half of the mean portion, or twice of the mean portion. The size of the mean portions will be considered by calculating the mean of each food consumed. The home measure for the mean portion will be based on the Table of Evaluation of Food Consumption in Home Measures (Pinheiro et al. 2000).

Trial Locations

Locations (1)

Federal Univeristy of Pelotas; 🇧🇷 Pelotas, RS, Brazil