Changes in soft tissue profile after mandibular setback surgery in Class III subjects

Marşan, Gülnaz; Öztaş, Evren; Kuvat, Samet Vasfi; Cura, Nil; Emekli, Ufuk

doi:10.1016/j.ijom.2008.12.005

Cited by 43 publications

(36 citation statements)

References 13 publications

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“…Jacobsone et al observed 11.2 degree increasing in this angle following surgery (20). In another study done by Marsan (2009) it was found that the increase in nasolabial angle was correlated with the decrease in ANS- Gn distance. The mean increase in this angle was just 1.9 degree (21).…”

Section: Discussionmentioning

confidence: 90%

Cephalometric Evaluation of Facial Soft Tissue Changes after Orthodontics and Bimaxillary Orthognathic Surgery Treatment in Patients with Skeletal Class III Discrepancy

et al. 2017

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Background: Severe skeletal class III malocclusions usually need a combined treatment of orthodontics and orthognathic surgery. Knowing about changes occurred following such treatments lead to improve facial esthetics and better treatment results. Objectives: This study was done to determine cephalometric changes of facial soft tissue after combined treatment in patients with skeletal class III problem. Methods: 25 patients with skeletal class III discrepancy who needed a combined treatment, were selected. Changes in nasolabial angle , upper lip and lower lip to E-line distance, angle of convexity , lip-chin-throat angle and lower anterior facial height were measured before and 6 -12 months after surgery. Changes in parameters were analyzed with Paired t-test. Results: Upper lip to E-line distance (P < 0.0001) and angle of convexity (P < 0.001) changed significantly following surgical procedures while changes of other parameters were not significant. Conclusions: Clinical changes in the soft tissue following a combination of orthodontic treatment and orthognathic surgery in patients with skeletal class III discrepancy are significant while these changes mostly improves esthetics of patient's facial profile.

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Section: Discussionmentioning

confidence: 90%

Cephalometric Evaluation of Facial Soft Tissue Changes after Orthodontics and Bimaxillary Orthognathic Surgery Treatment in Patients with Skeletal Class III Discrepancy

et al. 2017

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“…After the radiographs were scanned and transferred to a computer, landmarks were identified manually using photographic software (Adobe Photoshop, version 7.0, Adobe Systems, San Jose, Calif). The cephalograms were traced by hand and landmarks identified using a modified version 9 of the soft tissue analyses developed by Legan and Burstone 10 and Lew et al 11 A horizontal reference line was constructed by raising a line 7u from sella-nasion line, and a line perpendicular to this at nasion was used as the vertical reference line. Movements of hard and soft tissue landmarks from presurgery to postsurgery were measured in millimeters to the horizontal and vertical reference lines using the photographic software tools.…”

Section: Lateral Cephalometrymentioning

confidence: 99%

Changes in quality of life and their relation to cephalometric changes in orthognathic surgery patients

Rustemeyer

Martin

Gregersen

2012

The Angle Orthodontist

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Objective: To evaluate correlations between presurgical and postsurgical changes in quality of life (QoL) and cephalometric hard and soft tissue changes in patients undergoing orthognathic surgery. Materials and Methods: The study sample consisted of 30 patients (mean age 24.3 6 4.5 years) with Class III malocclusion undergoing orthognathic surgery for mandibular setback with a median follow-up of 8.3 6 1.2 months. Presurgical and postsurgical cephalograms were traced and Oral Health Impact Profile (OHIP) questionnaires were completed. Each questionnaire consisted of 14 items designed to evaluate functional, physical, psychological, and social impacts. Results: Significant correlations between significant presurgical-to-postsurgical changes in individual items and OHIP parameters were found between labiomental angle (LA) and question 5 (''feeling self-conscious''; correlation coefficient [r] 5 0.530), between LA and question 6 (''feeling tense''; r 5 0.598), between nasion-pogonion and question 5 (r 5 0.523), and between facial convexity and question 5 (r 5 20.540). Hence, reduction of both LA and nasion-pogonion led to a significant decrease in the impact scores of items covering psychological discomfort, while reduced facial convexity led to increased impact scores. Conclusions: Although the associations were moderate, changes in QoL following cephalometric modifications should be considered as a major concern when planning orthognathic surgery. Postsurgical changes to a more convex profile after mandibular setback should be emphasized before surgery to help patients become accustomed to their new appearance more easily without negatively affecting QoL. (Angle Orthod. 2012;82:235-241.)

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“…In Angle Class III malocclusion, facial profile is concave, with upper lip narrower than the lower, there is no lip sealing at rest and the tongue is in the floor of the mouth, as well as the maintenance of swallowing pattern in postoperative with contraction of the perioral muscles 2,4,8,14 . The middle third of the face showed variation in the clinical evaluation with caliper rule 15 , and there have been changes in the facial profile 16,17 , improving the facial convexity, the position of the lips and the chin-lip groove, therefore, orthognathic surgery was effective in producing a profile near the normal range, as shown in Figure 5. In study 9 conducted with individuals with Angle Class III molar relation in order to analyze whether the orthodontic-surgical treatment entails modification in signs and symptoms of TMD, it was found that there is a reduction of signs and symptoms in the postoperative, as well as a decrease in the oral opening.…”

Section: Discussionmentioning

confidence: 99%

Ganhos funcionais mensurados pelo MBGR e impacto na qualidade de vida em sujeito submetido à cirurgia ortognática: relato de caso

et al. 2015

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Resumo: O tema proposto é Intervenção Fonoaudiológica pré e pós Cirurgia Ortognática. Foi realizada avaliação (por meio do Protocolo de Avaliação Miofuncional Orofacial MBGR com escores) e intervenção fonoaudiológica em período pré-operatório (por três meses) e pós-operatório iniciado no 20º dia (por três meses), após a liberação do cirurgião. Além disso, investigou-se o impacto da deformidade dentofacial na qualidade de vida do paciente, por meio do Oral Health Impact Profile - versão reduzida. Na avaliação pré-operatória, foram encontradas mastigação bilateral simultânea, presença de ruídos na Articulação Temporomandibular e fechamento labial assistemático durante a realização da função. Durante a deglutição houve contração da musculatura perioral e presença de resíduos após essa função. Encontrou-se na fala distorção no fonema /r/. Houve dor à palpação nos músculos mastigatórios e diminuição da tonicidade na musculatura perioral e mastigatória. Encontrou-se alto impacto na qualidade de vida, totalizando em 32 pontos. Na avaliação após a intervenção fonoaudiológica, observou-se melhora nas funções de mastigação (pré: 4 pontos, pós: 1 ponto), deglutição (pré:14, pós :5), respiração (pré: 3, pós: 1) e fala (pré: 7, pós: 1), na mobilidade muscular (pré: 8, pós 1), na tonicidade da musculatura (pré 5, pós: 0) e na dor à palpação (pré: 10, pós: 2). Houve melhora na postura dos lábios e melhora significante na qualidade de vida, passando de 32 para 8 pontos. Constatou-se melhora na fisiologia das funções estomatognáticas, diminuição da dor à palpação, equilíbrio no tônus, na mobilidade muscular e melhora na qualidade de vida.

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Changes in soft tissue profile after mandibular setback surgery in Class III subjects

Cited by 43 publications

References 13 publications

Cephalometric Evaluation of Facial Soft Tissue Changes after Orthodontics and Bimaxillary Orthognathic Surgery Treatment in Patients with Skeletal Class III Discrepancy

Cephalometric Evaluation of Facial Soft Tissue Changes after Orthodontics and Bimaxillary Orthognathic Surgery Treatment in Patients with Skeletal Class III Discrepancy

Changes in quality of life and their relation to cephalometric changes in orthognathic surgery patients

Ganhos funcionais mensurados pelo MBGR e impacto na qualidade de vida em sujeito submetido à cirurgia ortognática: relato de caso

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