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Myotonic dystrophy and craniofacial morphology: clinical and instrumental study

Type:  Articles

Pubblication date:  /1/2009

Authors:  M. Portelli, G. Matarese, A. Militi, R. Nucera, G. Triolo, G. Cordasco

Language:  English

Institution:  University of Messina, Department of Orthodontic and Paediatric Dentistry A.O.U. “G. Martino”, Messina (Italy)

Publication:  European Journal of Paediatric Dentistry

Publisher:  Ariesdue Srl

Keywords:  Myotonic dystrophy; Craniofacial growth; Orofacial musculature

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Email:  [email protected]

Title:  Myotonic dystrophy and craniofacial morphology: clinical and instrumental study

Abstract:  Aim The aim of this study is to assess if, and to what extent, myotonic dystrophy can affect the craniofacial growth pattern. Materials and methods The research was conducted on a sample of 27 patients with Steinert’s myotonic dystrophy (study group). Each subject underwent a clinical examination with impression-taking and intra- and extraoral photographs. A latero-lateral projection teleradiography in the mirror position was also taken and a cephalometric examination was performed. The assessed values were compared with those obtained from a group of healthy subjects (control group). Results Statistical analysis of the data obtained from the myotonic patients who developed the disease during the growth phase revealed alterations in the transversal plane and, to an even greater extent, the vertical one, with a high frequency of anterior open bite. Discussion and conclusions Regarding the pathogenesis of these types of skeletal dysplasias, the authors hypothesise a posterior rotation growth pattern, resulting from gravitational force prevailing over the deficit of the elevator muscles.

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