Attrition, abrasion, corrosion and abfraction revisited

Noncarious cervical lesions in occlusion service patients: occlusal aspects and risk factors

“…Noncarious Cervical Lesions (NCLs) are defined by the dental tissue loss in the cervical region: of teeth, without the evidence of dental caries origin [1][2][3][4] . These injuries are usually found and increasingly common practice in dental clinic.…”

“…Their etiology and classification are challenging, though 4 . The action of abrasive, erosive and occlusal mechanisms may contribute to the lesion formation, making it of a multifactor source 1,[4][5][6] .…”

“…The occlusal stress from non-axial force (lateral or oblique) on the dental element, can generate microfractures of enamel and dentin in the cervical region 1 . The occlusion as an etiologic factor of NCLs was presented in 1984 by the Tooth Bending Theory, which states that occlusal interferences cause the breakdown of enamel and dentin in the cervical region, resulting in the lesion formation 9 .…”

The survival of Class V restorations in general dental practice. Part 1, baseline data

“…While caries does present on the buccal and lingual aspects of teeth, many such defects are not related to bacterial action and have been attributed to erosion, abrasion or abfraction. 8,9 Therefore, material properties such as acid solubility, wear resistance and elastic modulus may be more or less important to the longevity of these restorations depending on the primary cause. In this respect, it is not always known which characteristics of restorative materials are the most important in determining clinical success.…”

Análise quantitativa e qualitativa da condutividade hidráulica da dentina após tratamento com diferentes agentes dessensibilizantes. Estudo in vitro

“…Nesses casos, elas envolvem múltiplos dentes. Por fim, a abfração é a perda de estrutura dentária cervical resultante da flexão do dente causada pelo estresse oclusal repetitivo (LEE; EAKLE, 1996;GRIPO;SCHREINER, 2004). Experiências clínicas revelam muitos casos de sensibilidade nessas lesões, conhecida tradicionalmente como hipersensibilidade dentinária (HD), cujo controle depende da eliminação do agente etiológico das LCNC e do tratamento terapêutico ou restaurador das áreas de dentina exposta e sensível.…”