• 1 Prosthodontic Unit, School of Dental Sciences, 65271Universiti Sains Malaysia, Kelantan, Malaysia
  • 2 Maxillofacial Prosthetic Service, Prosthodontic Unit, School of Dental Sciences, 65271Universiti Sains Malaysia, Kota bharu, Kelantan, Malaysia
  • 3 Adelaide Dental School, 1066The University of Adelaide, South Australia, Australia
  • 4 College of Dentistry, Jouf University, Sakaka, KSA
Cleft Palate Craniofac J, 2021 03;58(3):386-390.
PMID: 32808548 DOI: 10.1177/1055665620950074


OBJECTIVE: The virtual cone beam computed tomography-derived 3-dimensional model was compared with the scanned conventional model used in the fabrication of a palatal obturator for a patient with a large palatal defect.

DESIGN: A digitally derived 3-dimensional maxillary model incorporating the palatal defect was generated from the patient's existing cone beam computerized tomography data and compared with the scanned cast from the conventional impression for linear dimensions, area, and volume. The digitally derived cast was 3-dimensionally printed and the obturator fabricated using traditional techniques. Similarly, an obturator was fabricated from the conventional cast and the fit of both final obturator bulbs were compared in vivo.

RESULTS: The digitally derived model produced more accurate volumes and surface areas within the defect. The defect margins and peripheries were overestimated which was reflected clinically.

CONCLUSION: The digitally derived model provided advantages in the fabrication of the palatal obturator; however, further clinical research is required to refine consistency.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.