Universität zu Köln

Zinser, Max J., Sailer, Hermann F., Ritter, Lutz, Braumann, Bert, Maegele, Marc and Zoeller, Joachim E. (2013). A Paradigm Shift in Orthognathic Surgery? A Comparison of Navigation, Computer-Aided Designed/Computer-Aided Manufactured Splints, and Classic Intermaxillary Splints to Surgical Transfer of Virtual Orthognathic Planning. J. Oral Maxillofac. Surg., 71 (12). PHILADELPHIA: W B SAUNDERS CO-ELSEVIER INC. ISSN 1531-5053

Full text not available from this repository.

Abstract

Purpose: Advances in computers and imaging have permitted the adoption of 3-dimensional (3D) virtual planning protocols in orthognathic surgery, which may allow a paradigm shift when the virtual planning can be transferred properly. The purpose of this investigation was to compare the versatility and precision of innovative computer-aided designed and computer-aided manufactured (CAD/CAM) surgical splints, intraoperative navigation, and classic intermaxillary occlusal splints for surgical transfer of virtual orthognathic planning. Material and Methods: The protocols consisted of maxillofacial imaging, diagnosis, virtual orthognathic planning, and surgical planning transfer using newly designed CAD/CAM splints (approach A), navigation (approach B), and intermaxillary occlusal splints (approach C). In this prospective observational study, all patients underwent bimaxillary osteotomy. Eight patients were treated using approach A, 10 using approach B, and 12 using approach C. These techniques were evaluated by applying 13 hard and 7 soft tissue parameters to compare the virtual orthognathic planning (T0) with the postoperative result (T1) using 3D cephalometry and image fusion (Delta T1 vs T0). Results: The highest precision (Delta T1 vs T0) for the maxillary planning transfer was observed with CAD/CAM splints (<0.23 mm; P>.05) followed by surgical waferless navigation (<0.61 mm, P<.05) and classic intermaxillary occlusal splints (<1.1 mm; P<.05). Only the innovative CAD/CAM splints kept the condyles in their central position in the temporomandibular joint. However, no technique enables a precise prediction of the mandible and soft tissue. Conclusions: CAD/CAM splints and surgical navigation provide a reliable, innovative, and precise approach for the transfer of virtual orthognathic planning. These computer-assisted techniques may offer an alternate approach to the use of classic intermaxillary occlusal splints. (C) 2013 American Association of Oral and Maxillofacial Surgeons

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zinser, Max J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sailer, Hermann F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ritter, Lutz UNSPECIFIED UNSPECIFIED UNSPECIFIED Braumann, Bert UNSPECIFIED UNSPECIFIED UNSPECIFIED Maegele, Marc UNSPECIFIED UNSPECIFIED UNSPECIFIED Zoeller, Joachim E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-471219
DOI:	10.1016/j.joms.2013.07.007
Journal or Publication Title:	J. Oral Maxillofac. Surg.
Volume:	71
Number:	12
Date:	2013
Publisher:	W B SAUNDERS CO-ELSEVIER INC
Place of Publication:	PHILADELPHIA
ISSN:	1531-5053
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FACE-BOW TRANSFER; INTRAOPERATIVE NAVIGATION; CLASS-II; SIMULATION; TOMOGRAPHY; ACCURACY; SUPERIMPOSITION; PRECISION; OPERATION; REALITY Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47121