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The role of occlusal loading in the pathogenesis of non-carious cervical lesions.

Antonelli, John R; Hottel, Timothy L; Brandt, Robert; Scarbecz, Mark; Patel, Tejas.
Am J Dent; 26(2): 86-92, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24073531

PURPOSE:

To evaluate the putative role of occlusal loading in the pathogenesis of non-carious cervical lesions (NCCLs) in subjects who exhibited mixed excursive guidance [i.e., immediate canine guidance on one side and group function (GF) on the other].

METHODS:

20 subjects with Angle Class 1 occlusion and having from 1 to 5 NCCLs on separate teeth were selected. Only subjects who displayed mixed excursive guidance were recruited so that they could serve as their own controls. Non-carious cervical lesions were recorded on casts mounted in semi-adjustable articulators.

RESULTS:

On the GF sides, 22.5% of all teeth that contacted in working excursions exhibited NCCLs; only 2.1% of the teeth on the canine guided sides exhibited NCCLs, which were found exclusively in canines. Although a case for the multifactorial etiology of NCCLs remains strong, our data, albeit limited, seems to support the dominant role of occlusion in lesion formation.