Myotonic dystrophy and craniofacial morphology: clinical and instrumental study

Authors:

ABSTRACT

Aim

The aim of this study is to assess if, and to what extent, myotonic dystrophy can affect the craniofacial growth
pattern.

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.

PLUMX METRICS