Date of Completion


Embargo Period



Dr. Flavio Uribe, Dr. Takanori Sobue, Dr. Taranpreet Chandhoke

Field of Study

Dental Science


Master of Dental Science

Open Access

Campus Access


Impact of Bracket Design and Oral Hygiene Maintenance on Halitosis in the Orthodontic Patient

Joan Palacios D.D.S

University of Connecticut 2015

Introduction: Halitosis is considered to be offensive to other people, it plays an important role in the social environment from an individual self-image and social interaction. Halitosis is estimated to affect almost 50% of the population with different intensity and etiologies. Fixed orthodontic appliances are associated with increase in periodontal status on a negative side, furthermore there is a correlation between plaque accumulation and halitosis.

Purpose: the objective of this study is to evaluate the effect of bracket type on plaque accumulation and also the impact of the appliance on oral malodor. In addition, the effect of tongue scraping on halitosis between CB brackets and SL brackets

Methods: 40 patients were recruited in total, randomized assigned to in one of four groups, CB brackets, CB brackets + tongue brush, SB bracket, and SB + tongue brush, followed during 5 weeks, T0 bonding day, T1 1 weeks after bonding, T2 4 to 5 weeks after T1, halitosis samples were taken using Halimeter sulfide monitor (Interscan Corporation, Chatsworth, CA USA). Periodontal measurements as such plaque index, bleeding index and gingival index were taken.

Results: Halitosis was increased in both types of brackets CB and SB, a decrease in halitosis was found on groups were tongue brush was given. Periodontal measurements were no statistically significant between the groups.

Conclusions: From result analyzed so far tongue brush helps reduce halitosis on patients undergoing fixed appliances, and periodontal measurements are not improved y the type of bracket but by the patient’s oral hygiene

Major Advisor

Dr. Nandakumar Janakiraman