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Current Osteoporosis Reports
Published in: Current Osteoporosis Reports 4/2018

01-08-2018 | Craniofacial Skeleton (WE Roberts, Section Editor)

Extra-Alveolar Bone Screws for Conservative Correction of Severe Malocclusion Without Extractions or Orthognathic Surgery

Authors: Chris C. H. Chang, Joshua S. Y. Lin, H. Y. Yeh

Published in: Current Osteoporosis Reports | Issue 4/2018

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Abstract

Purpose of Review

Evaluate management of challenging malocclusions conservatively (no extractions or orthognathic surgery).

Recent Findings

Most malocclusions have a predominately environmental etiology. Optimal esthetics and function are restored by aligning the dentition over the apical base of bone at the appropriate vertical dimension of occlusion (VDO). Extra-alveolar (E-A) anchorage is achieved at three intraoral sites: mandibular buccal shelf (MBS), infrazygomatic crest (IZC), and anterior ramus. MBS and IZC bone screws effectively anchor the conservative correction of severe dental and skeletal malocclusions. All bone screw sites are effective for anchoring lever arms to recover impacted teeth. Rather than extracting teeth, E-A anchorage corrects crowding by retracting the posterior segments to increase arch length. Skeletal malocclusion is corrected by aligning teeth over the apical base of bone and restoring the VDO by retracting and posteriorly rotating the dental arches as segments.

Summary

Challenging dental and skeletal malocclusions can be treated routinely via determinate mechanics anchored with E-A bone screws.
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Metadata
Title
Extra-Alveolar Bone Screws for Conservative Correction of Severe Malocclusion Without Extractions or Orthognathic Surgery
Authors
Chris C. H. Chang
Joshua S. Y. Lin
H. Y. Yeh
Publication date
01-08-2018
Publisher
Springer US
Published in
Current Osteoporosis Reports / Issue 4/2018
Print ISSN: 1544-1873
Electronic ISSN: 1544-2241
DOI
https://doi.org/10.1007/s11914-018-0465-5

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