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Influence of bruxism and splint therapy on tongue pressure against teeth
Lis Meirelles1, Renata Cunha Matheus Rodrigues Garcia1
1a Department of Prosthodontics and Periodontology , Piracicaba Dental School, University of Campinas , Av. Limeira, no 901, Bairro Areia˜ o, Sa˜o Paulo, Piracicaba , CEP 13414-903 , Brazil.
Objectives:
This study estimated the maximum tongue pressure (MTP) against teeth in bruxers, and verified the effect of a stabilization splint.
Method:
Forty subjects (mean age: 26.57 years) were assigned to two groups (n520): bruxers and nonbruxers. Sleep bruxism was diagnosed by self-report, presence of tooth wear and tongue indentation, and by using a BiteStrip2 device. Maximum tongue pressure was measured by intraoral appliances containing pressure sensors. After baseline evaluation, bruxers received a stabilization splint and non-bruxers received a palatal splint, both for nocturnal use. Maximum tongue pressure was reassessed after 30 and 60 days. Data were submitted to repeated-measures ANOVA and Tukey test (Pv0.05).
Results:
Bruxers showed an increased MTP against teeth (Pv0.05). Splint therapy decreased MTP for bruxers and non-bruxers.
Discussion:
Bruxers present tongue indentations or ulcerations; however, there is no evidence on their MTP. Further research should focus on therapies to avoid tongue ulcerations in bruxers.
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