Nagaven N B, Umashankara K V
Department of Pediatric and Preventive Dentistry, College of Dental Sciences, Davangere, Karnataka, India.
J Indian Soc Pedod Prev Dent. 2012 Apr-Jun;30(2):94-102. doi: 10.4103/0970-4388.99978.
Pediatric dentistry in the current scenario is not just about teeth and gums that are easily visible in children's mouth anymore. It is all about those structures that are hidden, difficult to identify, and often remain undiagnosed. Dentist can come across various anomalies pertaining to the crown structure during the clinical practice. Although supernumerary tooth is the most commonly seen anomaly, the presence of extra roots in molars is an interesting example of anatomic root variation. It is well known that both primary and permanent mandibular first molars usually have roots, one mesial, and the other distal root. Very rarely an additional third root (supernumerary root) is seen and when it is located distolingually to the main distal root is called "radix entomolaris (RE)" and when it is placed mesiobuccaly to the mesial root is called "radix paramolaris (RP)." The purpose of this article is to discuss the prevalence, morphology, classification, clinical diagnosis, and significance of supernumerary roots in contemporary clinical pediatric dentistry.
在当前情况下，儿童牙科不再仅仅关乎儿童口腔中易于看见的牙齿和牙龈。它还涉及那些隐藏的、难以识别且常常未被诊断出来的结构。在临床实践中，牙医可能会遇到各种与牙冠结构相关的异常情况。虽然多生牙是最常见的异常情况，但磨牙中额外牙根的存在是解剖学牙根变异的一个有趣例子。众所周知，乳牙和恒牙下颌第一磨牙通常有牙根，一个近中根和另一个远中根。非常罕见地会出现额外的第三个牙根（多生牙根），当它位于主远中根的远舌侧时被称为“远中磨牙根（RE）”，当它位于近中根的近颊侧时被称为“近中磨牙根（RP）”。本文的目的是讨论当代临床儿童牙科中多生牙根的患病率、形态、分类、临床诊断及意义。
