Idiopathic cervical lesions: in vivo investigation by oral microendoscopy and scanning electron microscopy. A pilot study

Abstract

The development and progression of cervical lesions have not been thoroughly documented. Clinically, two morphologically distinct forms, saucer-or wedge-shaped, have been described. In this study, the micromorphology of manifest cervical lesions was documented in six subjects, by SEM replication and microendoscopy. Optoelectronic recordings were made of extreme mandibular lateral excursions. Salivary parameters were evaluated and a detailed case history, including oral hygiene and dietary habits, was taken. Lesions of varying severity could be observed in the same subject. Longitudinal fractures of the enamel were common. The dietary analyses were uneventful and salivary values were normal. No correlation was found between brushing habits and the location and severity of the lesions. The optoelectronic recordings, however, indicated a possible correlation between irregular lateral excursion and the severity and location of the lesions, with a tendency for fewer and less severe lesions on the preferred chewing side. The results have indicated some areas of interest for future studies applying non-invasive observation methods.

A qualitative assessment of non‐carious cervical lesions in extracted human teeth

“…22 These features were not found in any of the NCCLs in this study or in previous in vivo studies. 15,18 This implies that considerable caution is needed when extrapolating findings based on artificial NCCLs to the clinical situation.…”

“…14 In another investigation conducted on six individuals, Bevenius et al 15 noted horizontal or oblique scratches and grooves of varying depth and regularity in both saucer-and wedge-shaped NCCLs. The authors stated that the NCCLs were of idiopathic origin, although they noted horizontal scratch marks in enamel and dentine that were characteristic of abrasion.…”

Update on the Etiology of Tooth Resorption in Domestic Cats

“…Repeated compressive and tensile forces attributable to tooth flexure during mastication and malocclusion may disrupt the bonds between enamel rods and between enamel and dentin, resulting in abfraction of enamel, exposure of dentin, and cervical hypersensitivity [72,73]. Although FORL are clearly resorptive in nature and develop on any tooth and any root surface (not just on those exposed to occlusal or shearing forces), occlusal stress caused by eating large dry kibbles has been suggested to be associated with FORL [18,74,75].…”

Avaliação da técnica de réplica para análise in vitro e in vivo das alterações da superfície da dentina hiperestésica e tratada com oxalato de potássio.

“…Dentre essas aplicações, podem ser destacados os estudos que utilizaram a técnica de réplica para observar a microestrutura dos tecidos duros dentários 40,112,28,17,105,80,57,70,110 , a abrasividade de dentifrícios 35 , a superfície de restaurações 50,122,49,29,77 , a interação de diferentes materiais com as estruturas dentárias 121,128 , a micromorfologia de tecidos moles e placa dental 68,124,125,106,9,107 , e o desenvolvimento de lesões cervicais não cariosas e as características de suas superfícies 25,8,4,14,127,11,9,10,78,13,62 .…”

“…Autores 50,5,28,25,54,122,124,2,8,4,125,14,106,127,11,9,10,107,78,27,33,13,49,80,62,128,29,36,77,57,70,110 recomendam as resinas epóxicas como material adequado para obtenção de …”