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Evaluation of labial versus labio-inferior lines of osteosynthesis using 3D miniplate for fractures of anterior mandible:A finite element analysis with a pilot clinical trial

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Chinese Journal of Traumatology 2019年第5期22卷 261-269页

作者： keerthana ponvel Elavenil Panneerselvam Sasikala Balasubramanian Krishna Kumar Raja V.B. Department of Oral and Maxillofacial Surgery SRM Dental College and HospitalRamapuram CampusRamapuramChennai 600089Tamil NaduIndia

Purpose:The fractures of anterior mandible are subject to severe torsional forces due to muscles acting in opposite directions.3D miniplate has been suggested as a good alternative by some ***,finite element model(FEM)studies indicate that labio-inferior positioning of two miniplates perpendicular to each other offers better stability as compared to labial *** study aims at combining the advantages of a single 3D miniplate and labio-inferior positioning of two conventional miniplates,which was assessed by finite element analysis along with a pilot clinical ***:Two FEM models were created using CT data of a 24-year-old patient with Angie class I occlusion:control model with labial plating and study model with labio-inferior *** models were processed with MIMICS.(materialise,Leuven,Belgium),CATIA.(Dassault Systemes)and finite element analysis *** adopted for analysis were(1)displacement(mm)of fracture fragments during each screw fixation,(2)lingual splay and post fixation stability of fracture fragments with masticatory load,and(3)stress distribution(MPa)across fracture ***,a pilot clinical trial including five patients with anterior mandible fracture was *** fractures were managed by intraoral open reduction and 3D miniplate fixation in labio-inferior *** interfragmentary gap,post fixation lingual splay and radiographic fracture union and complications were assessed ***:Labio-inferior plating demonstrated less displacement(mm)of fracture fragments during screw fixation(0.059 vs.0.079)as well as after application of masticatory load(1.805 vs.1.860).Negligible lingual splay and less stress distribution(MPa)across fracture fragments(1.860 vs.1.847)were appreciated in the study group as compared to control *** trial support the favorable outcome related to intraoperative and postoperative assessment ***:FEM analysis and

关键词： Mandibular fractures Finite element analysis Osteosynthesis 3D miniplate

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Maxillofacial trauma in a pregnant patient:Contemporary management principles with a case report&review of literature

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Chinese Journal of Traumatology 2020年第2期23卷 78-83页

作者： Geetha Sridharan Elavenil Panneerselvam keerthana ponvel Swetha Tarun V.B.Krishna Kumar Raja Department of Oral and Maxillofacial Surgery SRM Dental College and HospitalRamapuram CampusRamapuramChennai 600089Tamil NaduIndia

Trauma during pregnancy deserves special attention because of its management objectives,***-being of both pregnant woman and *** trauma directly affects the nutrition of foetus by interfering with the normal functions in a pregnant woman such as mouth *** and breathing,Hence early restitution of form and function of maxillofacial skeleton is ***,the gravid status is associated with numerous anatomical and physiological changes which present with clinical dilemma related to imaging and treatment.A careful scrutiny of the patient's systermic and gestational status is absolutely essential before,during and after instituting any interventional *** present a case of bilateral condyle fracture in a 30-year-old pregnant woman in the third trimester(32 weeks).She was treated with inter maxillary fixation using orthodontic brackets&*** successful restitution of occlusion,the patient was advised aggressive physiotherapy which ensured normal mouth *** weeks later,the patient delivered *** patient was followed up at one month and 3 month and demonstrated restitution of normal occlusion,mouth opening and lower|acial *** article aims at analyzing the contermporary principles in management of maxillfacial trauma in a pregnant woman and clarifying the common misconceptions.

关键词： Trauma Pregnancy Foetus Condyle fracture

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