Proff Peter, Fanghänel Jochen, Allegrini Sergio, Bayerlein Thomas, Gedrange Tomas
Poliklinik für Kieferorthopädie, Präventive Zahnmedizin und Kinderzahnheilkunde, Ernst-Moritz-Arndt-Universität Greifswald, Rotgerberstrasse 8, 17487 Greifswald, Germany.
Ann Anat. 2006 Mar;188(2):163-9. doi: 10.1016/j.aanat.2005.10.005.
Supernumerary teeth are extra teeth or toothlike structures which may have either erupted or unerupted in addition to the 20 deciduous teeth and the 32 permanent teeth. This article provides an overview of frequency, distribution and classification of supernumerary teeth. The etiology of supernumerary teeth is still unknown, yet various theories have been presented based on epidemiological studies. Four clinical cases representing the possible manifestations of supernumerary teeth are discussed.
多生牙是指除了20颗乳牙和32颗恒牙之外，额外长出的牙齿或牙样结构，这些牙齿可能已经萌出，也可能尚未萌出。本文概述了多生牙的发生频率、分布及分类。多生牙的病因尚不清楚，但基于流行病学研究已提出了各种理论。文中讨论了代表多生牙可能表现的四个临床病例。
