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ISSN: 2376-032X

JBR Journal of Interdisciplinary Medicine and Dental Science
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Research Article

Aberration in the Path of Eruption of the Mandibular Permanent Second Molar

Nir Shpack1, Tamar Finkelstein1, Yon H Lai2, Mladen M Kuftinec2, Alexander Vardimon1 and Yehoshua Shapira1*

1Departmentof Orthodontics, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.

2Department of Orthodontics, New York University College of Dentistry, New York, USA.

*Corresponding Author:
Yehoshua Shapira
Departmentof Orthodontics
The Maurice and Gabriela Goldschleger School of Dental Medicine
Tel Aviv University, Tel Aviv 69978 Israel
Tel: +972-2-5335531
Fax: +972-2-5335532
E-mail: [email protected]

Received Date: November 18, 2013; Accepted Date: December 07, 2013; Published Date: December 09, 2013

Citation: Shpack N, Finkelstein T, Lai YH, Kuftinec MM, Vardimon A, et al. (2013) Aberration in the Path of Eruption of the Mandibular Permanent Second Molar. J Interdiscipl Med Dent Sci 1:103. doi: 10.4172/2376-032X.1000103

Copyright: © 2013 Shpack N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

Abstract

Objectives: The purpose of this report isto describe aberration in the eruption path of the mandibular permanent second molars. Usually they present with an un explainable angulation during their pre-eruptive stages, resulting in impaction. In addition, the prevalence and distribution of mandibular second molar impaction in orthodontically treated children is presented and discussed.

Materials and methods: Panoramic radiographs of 3500 consecutively treated patients, age 11-15 years, were used to evaluate the eruption stage,as well as the angulation and space available for the mandibular permanent second molars.

Results: A total of 62 impacted mandibular second molars were detected in 49 patients, presenting a prevalence rate of 1.4%. 36 (58%) of these were unilateral and 26 (42%) were bilateral, most of them (88%) mesially angulated. The unexpected and unpredictable change in the eruption path of four mandibular second molars, resulting in their impaction, is presented.

Conclusions: Change in the path of eruption of the mandibular second molar was detected from sequential radiographic examination. The great majority of them were mesially angulated. The factors causing their angulation change that may lead to impaction are still obscure. A prevalence of 1.4% for mandibular second molar impaction was found in the large sample analyzed in our study

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