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A paralleling device and ethylene vinyl acetate baffles for use with mandibular distraction osteogenesis: technical note

N. L. Brown^*, K. House^*, A. Leach^*, K. Page, G. H. Irvine^* and J. R. Sandy^*

^* Southmead Hospital and
Frenchay Hospital, Bristol, UK

Address for correspondence: Jonathan Sandy, Division of Child Dental Health, Bristol Dental Hospital, Lower Maudlin Street, Bristol BS1 2LY, UK. Email: Jonathan.sandy{at}bris.ac.uk

A novel method for planning the placement of intra-oral lengthening devices using a paralleling device is described and illustrated with a case report. Simple radiographic measurements and study models are all that is required to construct a simple acrylic splint with guides, which allows accurate positioning of the distractors at surgery. The construction of ethylene vinyl acetate (EVA) baffles to prevent trauma to the labial mucosa from the intra-oral link arms is a technique that enhances patient comfort during distraction of the mandible. The case report demonstrates the application of the surgical planning technique and the use of EVA baffles for a patient with an overjet of 21.5 mm.

Key words: Distraction osteogenesis, mandible