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Quintessence International



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Quintessence Int 43 (2012), No. 3     30. Jan. 2012
Quintessence Int 43 (2012), No. 3  (30.01.2012)

Page 255-262, PubMed:22299126

Clinical evaluation of the association of noncarious cervical lesions, parafunctional habits, and TMD diagnosis
Brandini, Daniela Atili / Pedrini, Denise / Panzarini, Sônia Regina / Benete, Igor Mariotto / Trevisan, Carolina Lunardelli
Objective: To verify a potential association between the presence of noncarious cervical lesions, parafunctional habits, and temporomandibular disorder (TMD) diagnosis.
Method and Materials: Sample-size calculation provided a value of 130 participants with a confidence level of 95% and an error margin of 5%. A population of 132 volunteers (30 men: mean age, 23.7 ± 3.05 years; 102 women: mean age, 24.9 ± 5.86 years) underwent an oral examination and was interviewed by a trained dentist. The following parameters were registered: personal details, TMD diagnosis, parafunctional habits, and noncarious cervical lesion presence. The population was then divided into a noncarious cervical lesion group and a control group and subjected to the t test, chi-square test, Fisher exact test, and Spearman correlation (α = .05).
Results: Noncarious cervical lesions were present in 39% of the population, with the largest concentrations found in the maxillary premolars (32%). The data showed a significant association between noncarious cervical lesion presence, tooth clenching (P = .03), and nail biting (P = .02), as well as a relation with TMD diagnosis (Fonseca Index [P = .01] and Research Diagnostic Criteria for TMD (RDC/TMD) [P = .004]). In the noncarious cervical lesion group, direct rank correlation was found between maxillary premolars and clenching (P = .03), mandibular canines and nail biting (P = .05), and mandibular incisors and parafunctional habits without dental contacts (P = .02).
Conclusion: Parafunctional habits and TMD presence should be taken into account in the diagnosis and treatment plan of noncarious cervical lesions.

Keywords: bruxism, facial pain, noncarious cervical lesions, tooth attrition, traumatic dental occlusion