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Occlusal Relations in Patients With Scaphocephaly

Lebuis, Ariane DMD, MSc*; Bortoluzzi, Patricia BSc, MD; Huynh, Nelly PhD*; Bach, Normand DMD, MSc*

doi: 10.1097/SCS.0000000000002018
Original Articles

Scaphocephaly results from a premature fusion of the sagittal suture. Usually, cranial vault corrective surgery is performed during the first year of life. There is currently no scientific data regarding occlusion of scaphocephalic patients, or the potential effect of craniovault surgery on the occlusion. The aims were to describe occlusion in scaphocephalic patients and compare with a general pediatric population, and to compare the difference in occlusion of surgically versus unoperated treated scaphocephalic subgroup. A total of 91 scaphocephalic patients (71 boys aged between 2 and 11 y) seen at the Craniofacial Clinic of CHU Ste-Justine's formed the experimental group. All patients received an orthodontic assessment. Among them, 44 underwent craniovault surgery, whereas 47 remained unoperated. Thirty-eight (33 boys; 17 operated) had lateral cephalometric radiographies, some of them also had cephalometric growth follow-ups. Clinical values for dental classification and overjet indicate an increased prevalence of class II malocclusions in scaphocephalic patients. However, interestingly enough, cephalometric values indicative of skeletal class II malocclusions (ie, N-A perp HP, N-B perp HP, N-Pog perp HP, Wits, N-A-Pog) remained within normal limits. Some cephalometric values present statistically significant differences between operated and unoperated patients (ANS-PNS t2, P = 0.025; /1-FH t2, P = 0.028), but these are individual variations not related to scaphocephaly. Maxillary width of scaphocephalic children remains within normal limits. Scaphocephalic patients clinically presented more class II malocclusions compared with normal children. Radiographic values remain, however, within normal limits for both anteroposterior and transverse dimensions. Corrective craniovault surgery did not affect occlusion in these patients.

*Faculty of Dentistry, Université de Montréal

Craniofacial Surgery Clinic, Centre Hospitalier Universitaire Ste-Justine, Montreal, Quebec, Canada.

Address correspondence and reprint requests to Patricia Bortoluzzi, BSc, MD, Professor of Surgery, Université de Montréal, Division of Reconstructive and Plastic Surgery, Craniofacial Clinic, Centre Hospitalier Universitaire Ste-Justine, 3175 Côte Ste-Catherine, Office #7916, Montreal, Quebec, Canada H3T 1C5; E-mail:

Received 25 November, 2014

Accepted 28 June, 2015

The authors report no conflicts of interest.

© 2015 by Mutaz B. Habal, MD.