Longevity and Effectiveness of Bleaching in Healthy and Smokers Patients

• Status: Completed
• Trial end date: 2014-01-01
• Target enrollment: 0
• Participant gender: All

Summary

The main objective of this study is to evaluate the effectiveness and longevity of color and Tooth sensitivity of patients undergoing home whitening peroxide 10% carbamide ( Whiteness Perfect , FGM , Joinville , Santa Catarina , Brazil) , and the relationship with the cigarette use for tooth whitening. They will be selected 120 patients with incisors darker than A2, higher plants will be divided into 2 groups per center (n = 30 ) , GE - Group Experimental ( smoking) and GC - Group Control ( non-smoking) . For the two groups will be used Carbamide peroxide 10% for 3 hours daily for a period of 3 weeks. Color will evaluated through the Vita Classical scale and Vita Easyshade Spectrophotometer in the periods: Home , for tooth whitening (1st , 2nd and 3rd week) and post- whitening ( 1 week and 1 month , 2 and 3 months). Patients recorded the perceived sensitivity through Numerical Analogue Scale (NRS ) with values from 0 to 4, where 0 = no sensation, 1 = mild, 2 = moderate, 3 = severe and 4 = significant , also in the Visual Analogue Scale (VAS ), with values from 0 to 10 where 0 = 10 = severe tenderness and sensitivity. for color analysis will be made two-way ANOVA (group vs. treatment time ), being Over time the repeated measure ( α = 0.05). Test will be held on Tukey to contrast the average ( α = 0.05). The sensitivity will be evaluated by the Fisher exact test . It is expected that there is no difference on the effectiveness of home whitening and tooth sensitivity between smokers and nonsmokers.

• Phase: Phase 4
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: University of Chile
• Treatments: Carbamide Peroxide

Criteria

Inclusion Criteria:

• Patients included in this study must be over 18 years with good general and oral health

• Free teeth having carious lesions and periodontal disease agree with the informed consent document

• The color of the upper anterior teeth is classified as A2 or greater value, according to the scale VITA Classical (Vita Zahnfabrik, Bad Sackingen, Germany) and the spectrophotometer Easyshade Vita (Vita Zahnfabrik, Bad Sackingen, Germany).

Exclusion Criteria:

• Have already made treatment tooth whitening

• Dental prosthesis having options at the upper front teeth

• Who are pregnant or lactating

• Presenting gingival recession

• Tooth sensitivity

• Endodontic treatment in anterior maxillary teeth

• Which have a severe internal coloring

• Cervical lesions carious

• Taking medications (AINES)

• Fixed orthodontic appliances

• Submit bruxism habits

• Having visible cracks in teeth

• Those who are not available to attend the controls.