Chamarthi V, Varma B R, Jayanthi M
Department of Pedodontics and Preventive Dentistry, Sree Balaji Dental College and Hospital, Chennai, Tamil Nadu, India.
J Indian Soc Pedod Prev Dent. 2012 Jan-Mar;30(1):70-3. doi: 10.4103/0970-4388.95587.
Defective enamel formation can be explained as defects occurring at the stages of enamel formation. Quantitative defects in matrix formation leads to hypoplastic form of amelogenesis imperfecta. Inadequate mineralization of matrix leads to hypocalcification and hypomaturation variants. The demarcation of matrix formation and mineralization is not so distinct. This paper describes a case of a 7-year-old boy with amelogenesis imperfecta - Type IA i.e., hypoplastic pitted autosomal dominant.
牙釉质形成缺陷可解释为在牙釉质形成阶段出现的缺陷。基质形成的定量缺陷会导致牙釉质发育不全的发育不全形式。基质矿化不足会导致低钙化和低成熟变体。基质形成和矿化的界限并不是很明显。本文描述了一名7岁男孩患有IA型牙釉质发育不全的病例,即发育不全凹陷型常染色体显性遗传。