Publications by authors named "Andrew Hua-an Cheng"

Background: Temporomandibular joint (TMJ) ankylosis with facial asymmetry is still controversial to deal with. This study describes a modified condylar distraction osteogenesis protocol via preauricular approach for the treatment of this condition.

Methods: From 2006 to 2013, 18 patients with TMJ ankylosis were enrolled.

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Purpose: The purpose of the present study was to evaluate the accuracy of navigation-assisted distraction osteogenesis of the mandible in a goat model.

Materials And Methods: Six adult goats were included in the present study. A 3-dimensional (3D) image was reconstructed by performing computed tomography (CT) scans in 0.

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Background: Fibrous dysplasia is a benign developmental dysplastic disorder of the bone in which abnormal fibroblastic proliferation replaces the normal bone matrix. Craniomaxillofacial fibrous dysplasia can cause severe deformity with devastating functional and aesthetic consequence. Precise surgical removal of the fibro-osseous tissue is the key to ultimately restore normal function and aesthetics.

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Maxillary defects secondary to ablative surgery are common, and functional maxillary reconstruction is challenging. Adjuvant radiotherapy further complicates reconstructive surgical planning. In this article, successful functional reconstruction of a partial maxillary defect was achieved using segmental osteotomy, sequential bifocal distraction osteogenesis, and prosthodontic treatment.

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Purpose: The objective of this study was to report the use of custom-made transport distraction osteogenesis (TPDO) in reconstruction of extensive mandibular defect.

Methods: Two consecutive patients with mandibular defect involving the body and symphysis were described. Presurgical three-dimensional computed tomography and rapid prototype model were used to design the customized distractor.

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Background And Objective: Virtual surgical simulation and training system offers a cost-effective and efficient alternative to traditional training and surgical planning. However, the algorithm for surgical simulation is sophisticated, and the requirement of computer software and hardware is high. The objective of this study was to explore the feasibility of tree-structure architectonic model in simplifying and realizing virtual orthognathic surgical simulation.

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The use of endoscopes in oral and maxillofacial surgery has been well documented. The advantage of no external scar and minimal invasiveness makes endoscopic technique gradually more popular. This article will describe a rare case of an intraosseous inferior alveolar nerve schwannoma and its removal using endoscope.

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Purpose: To compare the outcome of inferior and superior joint space injection of sodium hyaluronate in patients with disc displacement without reduction of the temporomandibular joint (TMJ).

Materials And Methods: One hundred twenty patients with disc displacement without reduction of TMJ were randomized into 2 experimental groups. One group of patients received superior joint space injections of sodium hyaluronate and the other group was treated with inferior joint space injections.

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