同一口腔内に現われた癒合歯, 先天的欠如歯及びエナメル質形成不全を伴った一例

概要

論文の詳細を見る
Developmental anomalies of the teeth may be classified according to severity as anomalies, malformations and monstrosities, some abnormalities are determined largely by intrinsic factors (heredity and mutation) and others by extrinsic factors (physical and chemical agents, endocrine dystunction and infection). Certain teratologic lesions are apparent at birth but some noncongenital defect are not predetermined, resulting entirely from postnatal environmental influences on the still developing structures. Recently we experienced a rare case of 12 years old male infant who had fusion in mandibular anterior region, congenital missing teeth and enamel hypoplasia. 1. Fused teeth was complete fusion between 1^^__| and 2^^__|. 2. Congenital missing teeth were [numerical formula]. 3. Enamel hypoplasia was apparent on [numerical formula]. One fundamental cause of this anomaly may be attributed to the Fujita's theory of phylogenetic consideration, but some other factors such as developmental and nutritional disturbances due to measles, varicella and parotitis epidemica in the period of his dental growth, also affected to the formation of such a serious dental anomaly.
九州歯科学会の論文
1974-11-30