Dental and Oral Maxillofacial Surgery

About Dental and Oral Maxillofacial Surgery Research

What is the prevalence of blood, bone and viral infections in patients requiring repeated blood transfusions since infancy? Can a splint work as a non-invasive treatment for Sleep Apnoea? Is there a correlation between the incidence of cleft lip and palate, and soil contaminants in third world countries? These are just some of the questions our Dental and Oral Maxillofacial surgeon-researchers are working to solve.

Deantal, Oral and Maxillofacial Surgery research projects

Description of a patient with Antley-Bixler Syndrome and initial management of unusual premaxillary displacement
The Antley-Bixler syndrome (ABS) is a rare constellation of clinical features associated with mutations in gene sequences coding for either cytochrome P450 oxidoreductase (POR) or fibroblast growth factor receptor 2. There have been few cases reported in the literature who presented with both ABS and cleft lip/palate, and, to our knowledge, none presenting with unusual premaxilla displacement as was the case for the subject of this case report.

Researcher: Dr Mark Rozenbilds +61 3 9594 2380
Supervisor(s):  Mr William Besly +61 3 9594 2380

The Role of Cone Beam CT (CBCT) in alveolar cleft graft planning and assessment.

Surgeons and orthodontists managing patients requiring alveolar cleft graft surgery rely on both clinical findings and radiographic investigations to determine treatment requirements, timing of surgery and the presence of bone to enable orthodontic tooth movement. Plain film radiographs and orthopantomographs (OPG) have typically been used pre-operatively and post-operatively but in the last decade cone beam computer tomography has enhanced the ability to undertake three dimensional assessment of the alveolar cleft site, including the relative positions of erupted and unerupted teeth. It would be useful to have an understanding of the exact information required pre- and post-operatively to enable selection of the ideal imaging modes to maximise information and reduce radiation. This understanding will help to formulate a protocol for imaging that can be incorporated into the overall orthodontic and surgical management of patients with alveolar clefts.

Researcher: Dr Prakash Patel
Supervisor(s):  Mr Ricky Kumar

The correction of asymmetrical surgical maxillary expansion (S.A.M.E) by Le Fort I osteotomy.

Surgically assisted expansion of the maxilla is a commonly used technique to increase the width of the upper jaw to correct malocclusions related to hypoplastic, narrow maxillae. A case is described where asymmetrical expansion occurred and subsequent correction was achieved by Le Fort I osteotomy.

Orthognathic surgery planning in the edentulous maxilla and mandible.

Orthognathic (jaw) surgery requires preoperative planning with articulated plaster models of the teeth. The desired jaw positions are determined in part by the position of the teeth in each (upper and lower) arch and their relation to each other (occlusion). Patients requiring jaw surgery who are edentulous presents challenges in planning as well as surgical execution in theatre as there are no teeth to provide a reference point for guidance of the jaw movements to the desired position. A planning and surgical protocol is proposed.