Dentoalveolar changes after surgically assisted maxillary expansion: a three-dimensional evaluation

Objectives Surgically assisted rapid palatal expansion (SARPE) is a common procedure to correct maxillary transverse deficiency of >5 mm in patients with closed midpalatal suture. The aim of this study was to three-dimensionally analyze skeletal and dentoalveolar changes after SARPE. Study design...

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Published in:Oral surgery, oral medicine, oral pathology, oral radiology and endodontics oral medicine, oral pathology, oral radiology and endodontics, 2009, Vol.107 (1), p.36-42
Main Authors: Zemann, Wolfgang, MD, DDS, Schanbacher, Monika, MD, DDS, Feichtinger, Matthias, MD, DDS, Linecker, Alexander, MD, DDS, Kärcher, Hans, MD, DDS
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biological and medical sciences
Cephalometry
Cuspid - physiopathology
Dentistry
Female
Humans
Imaging, Three-Dimensional
Male
Malocclusion - surgery
Medical sciences
Mesial Movement of Teeth - etiology
Molar - physiopathology
Oral Surgical Procedures - adverse effects
Osteotomy - adverse effects
Otorhinolaryngology. Stomatology
Palatal Expansion Technique - adverse effects
Palate, Hard - surgery
Surgery
Tomography, X-Ray Computed
Treatment Outcome
Young Adult
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Summary:Objectives Surgically assisted rapid palatal expansion (SARPE) is a common procedure to correct maxillary transverse deficiency of >5 mm in patients with closed midpalatal suture. The aim of this study was to three-dimensionally analyze skeletal and dentoalveolar changes after SARPE. Study design Eighteen mature patients (mean age 26 years) with a palatal transverse deficiency underwent SARPE. The surgical procedure consisted of a lateral osteotomy combined with an interradicular osteotomy between the roots of the upper central incisors. Measuring points were defined on teeth as well as facial skeleton. Computerized tomography scans were performed preoperatively and immediately after the expansion period. Results Changes of the dentoalveolar and maxillofacial complex were analyzed. Conclusions Bilateral osteotomy combined with a sagittal osteotomy between the roots of the upper central incisors is a safe method of surgically assisted maxillary expansion. The amount of dentoalveolar tipping was smaller than reported in literature. The expansion was mostly achieved by maxillary expansion.
ISSN:1079-2104
1528-395X
DOI:10.1016/j.tripleo.2008.05.044