Stress Distribution and Displacement of Craniofacial Structures Following Rapid Maxillary Expansion in Different Types of Cleft Palate: A Three-Dimensional FEM Study.

Objective: To evaluate displacements and stress distributions in finite element models (FEMs) of the craniofacial complex of 13-yearold male patient with complete unilateral cleft palate (UCP), a 15-year-old female patient with complete bilateral cleft palate (BCP), and a 15-year-old female patient with isolated cleft palate (ICP), which may respond differently to expansive forces.

Methods: The FEMs were based on computed tomography scans of patients with UCP, BCP, and ICP who needed maxillary expansion. Von Mises stress distribution after 0.

Occurrence of Pneumatic Cavities Surrounding the Temporomandibular Joint.

Objectives: The aim of this study was to investigate the occurrence, the location, and the characteristics of the pneumatic cavities (PCAs) surrounding the temporomandibular joint (TMJ) by using cone-beam computed tomography.

Methods: A retrospective study was performed by using the three-dimensional data archives from Faculty of Dentistry, Bezmialem University, Istanbul, Turkey. The age and sex had been previously recorded for all of the patients.