- Complications in transpalatal distraction osteogenesis: a retrospective clinical study
- Journal of Oral and Maxillofacial Surgery
- Volume | Issue number
- 69 | 3
- Pages (from-to)
- Document type
- Faculty of Dentistry (ACTA)
Purpose: Transpalatal distraction osteogenesis is a bone-borne technique to expand the maxilla and
has become a routine method in treating patients with transverse maxillary hypoplasia. Limited reports concerning treatment difficulties have been published. The purpose of this study was to investigate and categorize the short- and middle-term incidence of peri- and postoperative difficulties (categorized by the classification of Paley in problems, obstacles, and complications). The signs of adverse dental and periodontal effects were established at least 1 year after removal of the distractor.
Patients and Methods: A total of 73 patients (27 male, 46 female; mean age: 28 years; range: 9-59) that
underwent bone-borne SARPE in 3 centers were retrospectively investigated. Clinical follow-up was
performed in 63 patients after an average period of 23.9 months (range: 6-63 months).
Results: Twenty-seven problems (mainly appliance related), 10 obstacles (appliance-related and asymmetric maxillary expansion), and 1 complication (premature loss of the TPD-module, due to lack of space, in a cleft patient) occurred. Clinical examination showed minimal periodontal damage (gingival recession on 15 sites and pocket depths 4-5 mm in 11 sites). In 28.6% of the incisors radiographic signs of external apical root resorption were seen.
Conclusion: Bone-borne SARPE is a reliable technique with predictable outcomes. These results
suggest that bone-borne SARPE is associated with a low incidence of dental and periodontal damage.
Nevertheless, further research, preferably in randomized controlled design, is needed to evaluate the
long-term effects and stability.
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