Yun-Fang Chen, Frank Baan, Stefaan Bergé, Yu-Fang Liao, Thomas Maal, Tong Xi
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Landmark-based method was used to evaluate the lower facial asymmetry regarding midline, cants, and contour.</p><p><strong>Results: </strong>There were no significant postoperative differences in the hemi-facial and hemi-jaw area asymmetry between CFM and Class II groups, both of which were significantly larger than the control group. No significant difference was found in the midline deviation and lip and occlusal cants between CFM and Class II groups. The vertical contour asymmetry in CFM group became significantly larger than Class II group. Compared to the control group, the deviation of pronasale, subnasale, and soft-tissue menton, lip and occlusal cants, and sagittal and vertical contour asymmetry in CFM group were significantly larger, as were the deviation of subnasale and soft-tissue menton and vertical contour asymmetry in Class II group.</p><p><strong>Conclusions: </strong>The vertical contour asymmetry of mild CFM was significantly larger than non-CFM class II after surgery, while the area asymmetry, midline deviation, cants, and sagittal contour asymmetry of lower face showed no significant difference.</p><p><strong>Clinical relevance: </strong>Be aware that correcting vertical asymmetry of contour, lip, and dentition in CFM is still challenging.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11358178/pdf/","citationCount":"0","resultStr":"{\"title\":\"Facial asymmetry outcome of orthognathic surgery in mild craniofacial microsomia compared to non-syndromic class II asymmetry.\",\"authors\":\"Yun-Fang Chen, Frank Baan, Stefaan Bergé, Yu-Fang Liao, Thomas Maal, Tong Xi\",\"doi\":\"10.1007/s00784-024-05899-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>To compare the facial asymmetry after bimaxillary surgery between mild craniofacial microsomia (CFM) and non-syndromic class II asymmetry.</p><p><strong>Materials and methods: </strong>Cone-beam computed tomography scans of adults with Pruzansky-Kaban types I and IIA CFM (CFM groups, n = 20), non-syndromic skeletal class II asymmetry (Class II group, n = 20), and normal controls (control group, n = 20) were compared. 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引用次数: 0
摘要
目的比较轻度颅面小畸形(CFM)和非综合征II类不对称在双颌手术后的面部不对称情况:对普鲁赞斯基-卡班 I 型和 IIA 型 CFM(CFM 组,n = 20)、非综合征骨骼 II 级不对称(II 级组,n = 20)和正常对照组(对照组,n = 20)的锥形束计算机断层扫描扫描结果进行比较。对下面部和下颌骨的面积不对称进行量化。采用基于地标的方法评估下面部在中线、颊骨和轮廓方面的不对称:结果:CFM 组和 II 级组术后半面部和半下颌面积不对称无明显差异,均明显大于对照组。CFM 组和 II 级组的中线偏差、唇和咬合颊面无明显差异。CFM 组的垂直轮廓不对称明显大于 II 类组。与对照组相比,CFM 组的前额、鼻下和软组织门顿偏差、唇和咬合颊尖偏差、矢状轮廓和垂直轮廓不对称性明显增大,II 类组的鼻下和软组织门顿偏差和垂直轮廓不对称性也明显增大:结论:轻度 CFM 的垂直轮廓不对称在术后明显大于非 CFM II 类,而面积不对称、中线偏差、颊部和下面部矢状轮廓不对称则无明显差异:临床意义:请注意,矫正 CFM 患者轮廓、唇部和牙齿的垂直不对称仍具有挑战性。
Facial asymmetry outcome of orthognathic surgery in mild craniofacial microsomia compared to non-syndromic class II asymmetry.
Objectives: To compare the facial asymmetry after bimaxillary surgery between mild craniofacial microsomia (CFM) and non-syndromic class II asymmetry.
Materials and methods: Cone-beam computed tomography scans of adults with Pruzansky-Kaban types I and IIA CFM (CFM groups, n = 20), non-syndromic skeletal class II asymmetry (Class II group, n = 20), and normal controls (control group, n = 20) were compared. The area asymmetry of lower face and jaw bones was quantified. Landmark-based method was used to evaluate the lower facial asymmetry regarding midline, cants, and contour.
Results: There were no significant postoperative differences in the hemi-facial and hemi-jaw area asymmetry between CFM and Class II groups, both of which were significantly larger than the control group. No significant difference was found in the midline deviation and lip and occlusal cants between CFM and Class II groups. The vertical contour asymmetry in CFM group became significantly larger than Class II group. Compared to the control group, the deviation of pronasale, subnasale, and soft-tissue menton, lip and occlusal cants, and sagittal and vertical contour asymmetry in CFM group were significantly larger, as were the deviation of subnasale and soft-tissue menton and vertical contour asymmetry in Class II group.
Conclusions: The vertical contour asymmetry of mild CFM was significantly larger than non-CFM class II after surgery, while the area asymmetry, midline deviation, cants, and sagittal contour asymmetry of lower face showed no significant difference.
Clinical relevance: Be aware that correcting vertical asymmetry of contour, lip, and dentition in CFM is still challenging.
期刊介绍:
The journal Clinical Oral Investigations is a multidisciplinary, international forum for publication of research from all fields of oral medicine. The journal publishes original scientific articles and invited reviews which provide up-to-date results of basic and clinical studies in oral and maxillofacial science and medicine. The aim is to clarify the relevance of new results to modern practice, for an international readership. Coverage includes maxillofacial and oral surgery, prosthetics and restorative dentistry, operative dentistry, endodontics, periodontology, orthodontics, dental materials science, clinical trials, epidemiology, pedodontics, oral implant, preventive dentistiry, oral pathology, oral basic sciences and more.