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Maxillary Total Elongation Surgery using 3D Virtual Surgery, CAD/CAM and 3D Printing Technology: Surgical Convenience and Accuracy. J Craniofac Surg 2022; 33:2172-2177. [DOI: 10.1097/scs.0000000000008757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/02/2022] [Indexed: 11/26/2022] Open
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Barakat A, Alasseri N, Assari A, Koppolu P, Al-Saffan A. A case report on surgical–orthodontic correction of skeletal class III malocclusion with severe prognathic mandible and retrognathic maxilla. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2022; 14:S1054-S1058. [PMID: 36110821 PMCID: PMC9469259 DOI: 10.4103/jpbs.jpbs_85_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/26/2022] [Indexed: 11/04/2022] Open
Abstract
Mandibular prognathism combined with a retrognathic maxilla is a skeletal discrepancy that is difficult to correct. We report a case of a 25-year-old Saudi male patient with skeletal class-III malocclusion due to severe prognathic mandible who was referred to an orthodontist at Prince Sultan Military Medical City. Complete clinical examination, radiographic assessment, and study models revealed class-III malocclusion due to anteroposterior deficiency of the maxilla and severe prognathic mandible. Orthognathic surgery was performed 18 months after the presurgical orthodontic phase. A 10-mm LeFort I advancement of the maxillary arch, with impaction of 3 mm, was performed with a bilateral sagittal split osteotomy (BSSO) of 11 mm. Stable occlusion and superior aesthetics were observed at the 1-year follow-up. Surgical–orthodontic treatment endows an adult patient with a class-III malocclusion or mandibular prognathism with a stable occlusion and superior aesthetics.
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Zou W, Li X, Li N, Guo T, Cai Y, Yang X, Liang J, Sun Y, Fan Y. A comparative study of autogenous, allograft and artificial bone substitutes on bone regeneration and immunotoxicity in rat femur defect model. Regen Biomater 2020; 8:rbaa040. [PMID: 33732488 PMCID: PMC7947581 DOI: 10.1093/rb/rbaa040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 12/15/2022] Open
Abstract
Repair and reconstruction of large bone defect were often difficult, and bone substitute materials, including autogenous bone, allogenic bone and artificial bone, were common treatment strategies. The key to elucidate the clinical effect of these bone repair materials was to study their osteogenic capacity and immunotoxicological compatibility. In this paper, the mechanical properties, micro-CT imaging analysis, digital image analysis and histological slice analysis of the three bone grafts were investigated and compared after different time points of implantation in rat femur defect model. Autogenous bone and biphasic calcium phosphate particular artificial bone containing 61.4% HA and 38.6% β-tricalcium phosphate with 61.64% porosity and 0.8617 ± 0.0068 g/cm3 density (d ≤ 2 mm) had similar and strong bone repair ability, but autogenous bone implant materials caused greater secondary damage to experimental animals; allogenic bone exhibited poor bone defect repair ability. At the early stage of implantation, the immunological indexes such as Immunoglobulin G, Immunoglobulin M concentration and CD4 cells' population of allogenic bone significantly increased in compared with those of autologous bone and artificial bone. Although the repair process of artificial bone was relatively inefficient than autologous bone graft, the low immunotoxicological indexes and acceptable therapeutic effects endowed it as an excellent alternative material to solve the problems with insufficient source and secondary trauma of autogenous bone.
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Affiliation(s)
- Wen Zou
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, Sichuan, China.,Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Xing Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Na Li
- Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Tianwei Guo
- Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Yongfu Cai
- Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Xiaoqin Yang
- Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, Sichuan, China.,Sichuan Testing Centre for Biomaterials and Medical Devices, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Yong Sun
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, Sichuan, China
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