Evaluation of the mandibular lingual concavity using cone beam computerized tomography
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The lingual surface of the mandible generally presents with an anatomical morphology in the shape of a concavity. The lingual concavity could be an area of threat during dental implant placement that could lead to severe life-threatening bleeding complications. Aim: The aim of the study was to study the morphology of the lingual concavity and to comparisons between dentate and edentulous areas using cone beam computerized tomography (CBCT). Materials and Methods: 100 CBCT scans of patients between the ages of 17 to 70 years were used. Three tooth sites, second molar, first molar and second premolar were analyzed. The morphology of the lingual concavity was studied by using angular measurements at the deepest point and linear measurements that were made two millimeters coronal to the inferior alveolar nerve. Results: The results from the angular measurements revealed that the edentulous ridges were significantly more concave than the dentate ridges in the second molar and the first molar locations. The results from the linear measurements revealed that the edentulous ridges had significantly deeper concavities that the dentate ridges in the second molar and the first molar locations. An additional finding that was also noted showed that the deepest point in the lingual concvity is generally located more coronally in the edentulous areas when compared with the dentate counterparts. Conclusion: The posterior mandible is certainly an area of caution during dental implant therapy. Every effort must be made by the clinician to study the meticulously morphology of the lingual concavity. CBCT imaging is recommended before dental implant placement in order to avoid severe complications.
PLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please click Download and log in with a valid BU account to access. If you are the author of this work and would like to make it publicly available, please contact firstname.lastname@example.org.Thesis (MSD) --Boston University Institute for Dental Research and Education, Dubai, 2012 (Periodontics).Includes bibliographic references: leaves 84-89.
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