OBJECTIVES To explore the method of manufacturing an implant surgery template with a computer-aided design/computer-aided manufacturing (CAD/CAM) technique and evaluate its precision in clinical cases. METHODS Patients referred to the 2nd Dental Center of Peking University who were partially edentulous, were enrolled and scanned with cone beam computed tomography (CBCT). Diagnostic casts were...

Computer-aided process planning (CAPP) is an important interface between computer-aided design (CAD) and computer-aided manufacturing (CAM) in computer-integrated manufacturing environments (CIMs). In this paper, process planning problem is described based on a weighted graph, and an ant colony optimization (ACO) approach is improved to deal with it effectively. The weighted graph consists of n...

BACKGROUND In addition to functional goals, a satisfactory aesthetic outcome is important for reconstruction of fronto-orbital osseous defects. The purpose of this study is to report on a method for presurgical fabrication of custom implants using 3-dimensional (3-D) imaging data and computer-assisted manufacturing techniques. METHODS Preoperative 3-D computed tomography data were processed a...

BACKGROUND Most cases of facial asymmetry involve yaw deformity, and determination of the yaw correction level is very difficult. METHODS We use three-dimensional soft tissue simulation to determine the yaw correction level. This three-dimensional simulation is based on the addition of cephalometric prediction to gradual yaw correction. Optimal yaw correction is determined visually, and an in...

In the 1950s and 1960s when prototypes of computer aided design (CAD) and computer-aided manufacturing (CAM) were introduced into industrial settings. Early dreamers like Mörmann, Durret and colleagues and Rekow were intrigued by the possibilities of using CAD-CAM in dentistry continued to work, and CAD/CAM systems are now part of everyday dentistry. The success of CAD CAM systems reflects in t...

The mandibular implant-supported fixed restoration is an appropriate treatment choice for patients with inadequate bone volume in the posterior mandible. Computer-aided design/computer-aided manufacturing (CAD/CAM) technology has broadened the scope and application for this treatment option. A milled titanium bar retaining individual all-ceramic zirconium oxide crowns, with composite resin repl...

Laser lithography was applied for Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) fabrication of dental prostheses made of composite resin. First, the conditions to obtain the optimum resolution for photo-curing were determined, and then a composite resin full crown was fabricated by laser lithography. Second, a functionally graded composite resin post and core which had gradie...

A myriad of extirpative surgical protocols for the management of benign tumors of the jaws have been presented in the literature. Through significant advancements in computer-aided design and computer-aided manufacturing (CAD/CAM) technology and surgical instrumentation, today surgeons have at their disposal robust technology-driven techniques that are aimed at improving surgical outcomes. Our ...

Every practice has patients who complain of cold sensitivity and pain on biting while showing no obvious signs of irreversible pulpitis. After loading each cusp and fossa in a symptomatic quadrant and ruling out pulp and periodontal pathology, definitive treatment can be performed to alleviate the patient's symptoms in a consistent, conservative manner using esthetic computer-aided design/compu...