Caries of Peripheral Cementum by I.T. Dacre - AAEP Focus 2006
نویسنده
چکیده
The formation of enamel, dentine and cementum involves the initial secretion of an organic matrix by ameloblasts, odontoblasts and cementoblasts respectively. This matrix is subsequently ‘loaded’ with mineral principally calcium hydroxyapatite (Ten Cate 1998). When peripheral cementum is still lying sub-gingivally (alveolar crown or gingival crown) (Mitchell 2004), it is nourished by the periodontium. Following its eruption as clinical crown, this vascular supply is lost, and peripheral cementum may then be considered to be an inert tissue (Mitchell 2004). This makes peripheral cementum prone to irreparable damage through physical trauma (including abrasion, attrition and fracture) and caries.
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