Michele Cristina David, Ceny Possato Almeida, Márcia Possato Almeida, Taylane Soffener Berlanga de Araújo, Ana Carolina Bernardes Vanzella, Idiberto José Zotarelli Filho and Vera Lúcia Bernardes
The non-carious cervical lesions (NCCL) constitute a group of great complexity in the practice of dental clinic, mainly when it regards the identification of etiologic agent and treatment. In the present study, 69 dentistry academic students, with ages from 20 to 32 years, were evaluated with the aim of identify the prevalence of NCCL and your correlation with para-functional habits (alfa=0.05). NCCL were observed in 79.7% of the total group; worn facets in 89.2%; alba line in 86.5%; fesfoneada tongue in 90.5%; report of clenching of teeth in 58.0%; teeth grinding in 20.3%; biting the lip in 30.4%; biting the cheek or tongue in 23.2% and biting objects in 14.5%. No correlation between the presence of NCCL and investigated parafunctional habits were observed (Coef. Pi). However, the correlation between the increase of depth and breadth NCCL were confirmed with following factors: presence of alba line, fesfoneada tongue, biting the lip habit, biting the cheek or tongue. Besides, there was correlation between the increase of NCCL extension and the habit of biting some object (Coef. Contingency C). Based on this, the conclusion is that the NCCL prevalence was high in the investigated population, and the presence of parafunctional habits did not affect it occurrence. However, there is a strong association between the increase of NCCL depth and breadth and the presence of parafuncional habits.
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