Purpose: The objective of this systematic review was to evaluate the risk of development of gingival recession (GR) as a result of the combined orthodontic-orthognathic approach.
Materials and methods: The PubMed, Google Scholar, ClinicalTrials.gov, and Cochrane Library databases were searched. Included articles mentioned gingival parameters in their materials and methods sections; specifically, they evaluated GR, which was measured before and after the surgical procedure. Study parameters such as methodology, evaluation period, sample characteristics, and follow-up were extracted by 2 authors independently.
Results: In total, 133 relevant articles were identified from the databases; after screening and full-text analysis, 9 studies were included in this systematic review. Meta-analysis could not be conducted because of considerable heterogeneity in methods. The incidence of GR in the range of 0.5 to 3.0 mm as a significant clinical finding after orthognathic surgery showed statistically significant differences in all included articles. Among patients with GR, the mean age was 23.0 to 29.5 years and the mandibular incisors were the most common site. However, no case of recession greater than 3.0 mm was associated with surgery.
Conclusions: On the basis of the findings of this review, GR of approximately 0.5 to 3.0 mm is a common finding after the combined orthodontic-orthognathic approach. Although periodontal damage up to 3 mm can be observed as an isolated finding in mainly the incisors, true recession is not associated with orthognathic surgery in general.
Copyright © 2020 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.