Lower lip deformity in patients with cleft and non-cleft Class III malocclusion before and after orthognathic surgery

Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
Joo Seok ParkJong Woo Choi

Abstract

Orthognathic surgery does not yield the same cosmetic benefits in patients with Class III jaw deformities associated with clefts as for patients without clefts. Preoperative upper lip tightness caused by cleft lip repair may not fully explain this difference, suggesting that a lower lip deformity is present. The study compared the outcomes of orthognathic surgery in patients with cleft and non-cleft Class III malocclusion, focusing on lip relationship. The surgical records of 50 patients with Class III malocclusion, including 25 with and 25 without clefts, who had undergone orthognathic surgery, were retrospectively analyzed. Lateral cephalometric tracings, preoperatively and at 6 months postoperatively, were superimposed to analyze the soft tissue changes at seven reference points. At 6 months after surgery, there were no significant differences in skeletal location, whereas the soft tissues of the lower lip differed significantly between patients with and without cleft (p=0.002), indicating the persistence of a lower lip deformity in cleft patients. Moreover, the soft tissues of the lower lip receded in non-cleft patients and protruded in cleft patients after orthognathic surgery. Lower lip deformity and upper lip tightness m...Continue Reading

References

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Citations

Nov 16, 2017·Plastic and Reconstructive Surgery·Woo Shik JeongJong Woo Choi
Oct 16, 2019·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Mirte LangeveldBonnie L Padwa

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