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In dentistry, numerous types of classification schemes have been developed to describe the teeth and gum tissue in a way that categorizes various defects. All of these classification schemes combine to provide the periodontal diagnosis of the aforementioned tissues in their various states of health and disease. ==Alveolar ridge deficiency== In 1983, Seibert classified alveolar crestal defects:〔Seibert JS. Reconstruction of deformed partially edentulous ridges using full thickness onlay grafts: Part I - technique and wound healing. ''Compend Contin Educ Dent'' 1983;4:437-453〕 Class I: buccolingual loss of tissue with normal apicocoronal ridge height Class II: apicocoronal loss of tissue with normal buccolingual ridge width Class III: combination-type defects (loss of both height and width) 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Periodontal diagnosis and classification」の詳細全文を読む スポンサード リンク
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