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The radiological evaluation of posterior superior alveolar artery topography by using computed tomography
Author(s) -
Duruel Onurcem,
AtamanDuruel Emel T.,
Tözüm Melek D.,
Karabulut Erdem,
Tözüm Tolga F.
Publication year - 2019
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12794
Subject(s) - premolar , molar , medicine , crest , dental alveolus , sinus (botany) , cone beam computed tomography , posterior teeth , orthodontics , dentistry , computed tomography , radiology , physics , botany , quantum mechanics , biology , genus
Abstract Background Posterior superior alveolar artery (PSAA) is the most important limiting anatomic structure while lateral approach sinus surgeries. PSAA should be taken into consideration to avoid bleeding during preparation of bony window. Purpose The aim of this article was to inform topography of PSAA and to evaluate measurements of this vital structure. Materials and Methods Three hundred and fifty‐four cone‐beam computed tomography (CBCT) images of PSAA from 177 patients were evaluated retrospectively. Localization of PSAA, diameter of PSAA, classification of PSAA diameter, distance between PSAA and crest, buccal bone thickness, palatal bone thickness, crest height, and crest width were recorded for each posterior tooth separately. Results The mean age of 177 patients was 54.05 ± 18.33 years. Although the most frequent localization of PSAA was intraosseous in premolar region, they were below Schneiderian membrane in molars. PSAA diameter was measured frequently less than 1 mm for all posterior teeth. Although palatal bone thickness was higher in premolar region than molars, no statistical relationship was found between tooth region and buccal bone thickness ( P > 0.05). The width of residual ridge was measured both wider apically and posteriorly. Positive correlation was observed between buccal bone thickness and PSAA diameter in first molar and premolar regions ( P < 0.05). Conclusions Detailed evaluation of patients by CBCT provided us the opportunity to draw topography of PSAA and inform about overall measurements of PSAA in all posterior teeth region.