Suprabha B S, Pai S M
Department of Pedodontics and Preventive Dentistry, Manipal College of Dental Sciences, Mangalore, India.
J Indian Soc Pedod Prev Dent. 2006 May;24 Suppl 1:S35-7.
Ankylosis of primary mandibular molars has been routinely found to be associated with various developmental disturbances in permanent dentition such as aplasia of the succedaneous tooth, ectopic eruption of the premolar, infraoclusion of the ankylosed tooth leading to tipping of the first permanent molar etc. This article describes a rare case where there was ankylosis of a mandibular second primary molar along with congenitally missing first permanent molar which resulted in the transposition of second premolar. Treatment options and prognosis of the case are discussed.
乳牙下颌磨牙的粘连通常被发现与恒牙列的各种发育障碍有关，如继承恒牙缺失、前磨牙异位萌出、粘连牙的低位咬合导致第一恒磨牙倾斜等。本文描述了一例罕见病例，其中下颌第二乳磨牙发生粘连，同时第一恒磨牙先天性缺失，导致第二前磨牙异位萌出。讨论了该病例的治疗方案和预后。
