A Novel Method to Reconstruct the Upper and Lower Jaws Using 3D-Custom-Made Titanium Implants.

Background: This paper presents a novel method of upper and lower jaw reconstruction using 3D-custom-made titanium implants with abutment-like projections. The implants were designed to rehabilitate the oral and facial shape, esthetic, function, and occlusion.

Patient And Method: A 20-year-old boy was diagnosed as having Gorlin syndrome.

Unusual Presentation of a Large Multilocular Second Branchial Cleft Cyst.

Second branchial cleft cysts (BCCs) are the most common type of branchial abnormalities and usually found high in the neck. Oropharyngeal presence of a BCC is very rare. The authors report a rare case of oropharyngeal, second branchial, multilocular, cleft cyst in a 9-year-old child (8.

Orbital stress analysis, part V: systematic approach to validate a finite element model of a human orbit.

Unlabelled: The progress in computer technology and the increased use of finite element analysis in the medical field by nonengineers and medical researchers lead us to believe that there is a need to develop a systematic approach to validate a finite element model (FEM), of a human orbit, that simulates part of the maxillofacial skeleton and to investigate the effects and the clinical significance of changing the geometry, boundary conditions, that is, muscle forces, and orthotropic material properties on the predictive outcome of an FEM of a human orbit.

Methods: Forty-seven variables affecting the material properties, boundary conditions, and the geometry of an FEM of a human orbit including the globe were systematically changed, creating a number of FEMs of the orbit. The effects of the variations were quantified as differences in the principal strain magnitudes modeled by the original FEM (criterion standard), before the sensitivity analyses, and those generated by the changed FEMs.

Preemptive analgesic effect of low doses of celecoxib is superior to low doses of traditional nonsteroidal anti-inflammatory drugs.

Purpose: The purpose of the study was to compare the preemptive analgesic effect of celecoxib, a cyclooxygenase 2 inhibitor, with a traditional nonsteroidal anti-inflammatory drug, ibuprofen, in patients after minor oral surgery procedures.

Patients And Methods: This randomized, double-blind, placebo-controlled, prospective clinical trial was conducted over an 8-month period. Participants were randomly allocated to receive a standard oral dose of 200 mg celecoxib, 400 mg ibuprofen, or a placebo containing lactose, preemptively 1 h before surgery.

Orbital stress analysis, Part IV: Use of a "stiffness-graded" biodegradable implants to repair orbital blow-out fracture.

Purpose: The purpose of this study was to develop a finite element model (FEM) of a human orbit, of 1 patient, who had an orbital blow-out fracture, to study the effect of using a "stiffness-graded" (SG) biodegradable implant on the biomechanics of bone-fracture repair.

Methods: An FEM of the orbit and the globe, of 1 patient who had an orbital blow-out fracture and was treated with biodegradable poly-L/DL-lactide [P(L/DL)LA 70/30], was generated based on computed tomography scan images. Simulations were performed with a computer using a commercially available finite element software.