Lower lip deformity in patients with cleft and non-cleft Class III malocclusion before and after orthognathic surgery.
J Craniomaxillofac Surg
; 43(8): 1638-42, 2015 Oct.
Article
em En
| MEDLINE
| ID: mdl-26315274
ABSTRACT
BACKGROUND:
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. MATERIALS ANDMETHODS:
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.RESULTS:
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.CONCLUSION:
Lower lip deformity and upper lip tightness may result in an unsatisfactory relationship between the upper and lower lips of patients with cleft-related jaw deformity after orthognathic surgery. Other factors were less important than the pathology of the lower lip.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenda Labial
/
Fissura Palatina
/
Procedimentos Cirúrgicos Ortognáticos
/
Lábio
/
Má Oclusão Classe III de Angle
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
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Female
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Humans
/
Male
Idioma:
En
Revista:
J Craniomaxillofac Surg
Ano de publicação:
2015
Tipo de documento:
Article