Purpose: The mandibular ramus is regarded as a relatively safe zone for a sagittal splitting osteotomy or for harvesting bone during implant treatment. The only important anatomical structure is the mandibular canal. The mandible has some anatomical variants that need to be recognized, such as a bifid mandibular canal, a retromolar canal, and rarely a temporal crest canal (TCC). In this study, cadaver mandibles were used to evaluate the TCC in the mandibular ramus using cone beam computed tomography (CBCT).
Methods: Altogether, 90 sites on 48 mandibles from Japanese cadavers were examined in this study. The CBCT volumetric images were acquired for areas of 79 mm[Formula: see text] 71 mm. Three-dimensional observation of the images was undertaken to estimate the frequency, position of the orifices, and canal continuity. The cadaver mandibles in which the TCCs were observed were dissected from the inner surface to confirm the contents.
Results: Five TCCs (5.6 %) were observed in 90 observation areas. At least one TCC was confirmed in four (8.3 %) of 48 mandibles. Two types of TCC were recognized. Dissection revealed that they contained neurovascular bundles.
Conclusion: Three-dimensional diagnosis is essential prior to surgical procedures in the mandibular ramus because unexpected blood vessels may be present that may cause bleeding or complications during the surgery.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11548-013-0931-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sporadic Burkitt Lymphoma First Presenting as Painful Gingival Swellings and Tooth Hypermobility: A Life-Saving Referral.
Dent J (Basel)
December 2024
Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens (NKUA), Greece 2 Thivon Street, 11527 Athens, Greece.
Burkitt lymphoma (BL) is an aggressive non-Hodgkin lymphoma (NHL), subdivided into endemic, sporadic, and immunodeficiency-associated forms. While jaw lesions are common in endemic BL, they are infrequent in sporadic cases, only rarely constituting the first manifestation of the disease. The aim of this study is to present a rare pediatric case of sporadic BL first manifesting as gingival swellings and tooth hypermobility and provide a review of all the published sporadic BL case reports as the first sign of disease.
View Article and Find Full Text PDFThe Role of Mandibular Thickness in Determining Anteroposterior Skeletal Relationships.
Dent J (Basel)
December 2024
Department of Orthodontics, School of Dentistry, Kanagawa Dental University, Yokosuka 238-8580, Japan.
This study aimed to explore the association between the ANB angle and mandibular bone thickness in individuals with skeletal malocclusion. We analyzed 224 adults, with a gender imbalance noted (68 men and 156 women), and an age range between 18.0 and 65.
View Article and Find Full Text PDFSex estimation in a Chilean population by mandibular analysis in cone beam computed tomography images.
BMC Oral Health
January 2025
Applied Morphology Research Center (CIMA), Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile.
Background: Sex estimation is the first stage in the identification of an individual in the forensic context, and can be carried out from bone structures like the mandible. The aim of this study was to estimate sex from metric analysis of the mandible in cone beam computed tomography images (CBCT) of adult Chilean individuals.
Methods: Six mandibular measurements were analysed, five linear and one angular, in CBCT of adult Chilean individuals of both sexes.
[Diagnostic and therapeutic approach to unilateral posterior vertical insufficiency].
Orthod Fr
January 2025
Nantes Université, Université Angers, CHU Nantes, INSERM, CNRS, CRCI2NA, 44000 Nantes, France
Introduction: The aim of this article is to present the diagnostic and therapeutic approach to unilateral posterior vertical insufficiency.
Material And Methods: The authors describe the management protocol.
Results: Posterior vertical insufficiency (PVI) manifests clinically as obliquity of the maxillo-mandibular occlusal plane and bicommissural line, and deviation of the chin.
Evaluation of positions of four lingula shapes for mandibular ramus surgery.
Front Oral Health
January 2025
School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Background: The lingula is an important landmark for conducting certain mandibular surgery procedures, such as sagittal split ramus osteotomy (SSRO) and intraoral vertical ramus osteotomy (IVRO). The purpose of this study was to investigate the location of the lingula in both horizontal and vertical planes among four different shapes of the mandibular ramus.
Methods: Ninety patients, 60 female and 30 male, underwent cone beam computed tomography scans to evaluate the measurements of the lingula tip (Li) in relation to the anterior border (AB), posterior border (PB), sigmoid notch (SN), and inferior border (IB) of the ramus.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!