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1.
Surg Radiol Anat ; 40(6): 653-665, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29353372

RESUMO

INTRODUCTION: This study was designed to quantify the important anatomical landmarks and the path of the inferior alveolar nerve (IAN) within the human mandibular body and ramus, in particular with reference to the bilateral sagittal split osteotomy (BSSO). MATERIALS AND METHODS: Four hundred and eleven CT scans were studied, 299 of these were involved in determining the position of lingula; and 230 were involved in determining the course of IAN in the mandibular molar region, namely from the mesial of the mandibular first molar to the distal of the mandibular second molar; 118 were involved with both measurements. RESULTS: On average, the lingula was located 17.0 ± 2.2 mm from the external oblique ridge; 11.6 ± 2.0 mm from the internal oblique ridge; 17.2 ± 2.7 mm from the sigmoid notch; and 15.6 ± 1.9 mm from the posterior border of the mandible. The course of the IAN in the mandibular molar region was found to descend vertically from the distal of the mandibular second molar (7) to reach its lowest point between the first and second molars (6 and 7), and then ascend towards the mesial of the first molar (6). Horizontally, the IAN was found to traverse medially between the distal of the 7 and the middle of the 7, and then changes its path laterally towards the mesial of the 6. CONCLUSION: Precise knowledge of the individual's position of the IAN will help surgical planning.


Assuntos
Pontos de Referência Anatômicos/anatomia & histologia , Variação Anatômica , Mandíbula/anatomia & histologia , Nervo Mandibular/anatomia & histologia , Osteotomia Sagital do Ramo Mandibular/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Pontos de Referência Anatômicos/diagnóstico por imagem , Pontos de Referência Anatômicos/cirurgia , Criança , Feminino , Humanos , Imageamento Tridimensional , Masculino , Mandíbula/diagnóstico por imagem , Mandíbula/cirurgia , Pessoa de Meia-Idade , Dente Molar/anatomia & histologia , Dente Molar/diagnóstico por imagem , Osteotomia Sagital do Ramo Mandibular/métodos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Tomografia Computadorizada por Raios X , Traumatismos do Nervo Trigêmeo/etiologia , Traumatismos do Nervo Trigêmeo/prevenção & controle , Adulto Jovem
3.
Ann R Australas Coll Dent Surg ; 16: 105-8, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14507149

RESUMO

The resorptive pattern of the maxilla and mandible after the dentition has been lost often leads to a discrepancy between the jaws such that a significant Class III malocclusion occurs. This discrepancy between the jaws leads to problems with both fixed and removable prosthetic reconstruction of the jaws with teeth. The jaws are often resorbed to the point where the muscle attachments become dislodging forces for conventional dentures and also to the point where adequate implants cannot be placed. Various procedures have been developed to augment the alveolar ridges to allow for adequate reconstruction of the dentition. Orthognathic surgical procedures have been developed to reposition the jaws and have been traditionally used in the dentate patient to correct a skeletal malocclusion. These procedures are usually carried out with orthodontic control of the dentition to produce the best results. These same procedures can be used on the edentulous patient to correct the discrepancies between the jaws in order to reconstruct the dentition with implants. Bone grafting procedures are often required for these procedures so that the alveolus can be augmented at the same time and allow for dental implants to be placed at a later date.


Assuntos
Implantes Dentários , Arcada Edêntula/cirurgia , Procedimentos Cirúrgicos Pré-Protéticos Bucais , Osteotomia/métodos , Aumento do Rebordo Alveolar/métodos , Reabsorção Óssea/cirurgia , Transplante Ósseo , Feminino , Humanos , Doenças Mandibulares/cirurgia , Doenças Maxilares/cirurgia , Procedimentos Cirúrgicos Pré-Protéticos Bucais/métodos , Osteotomia de Le Fort
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