Evaluation of anatomical references for locating the course of the posterior superior alveolar artery for dental implant surgery |
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| Affiliation: | 1. Department of Oral Surgery, Oral Sciences, Clinical Dentistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan;2. Tokushima Prefectural Central Hospital, Tokushima, Japan;1. Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Mansoura, Egypt;2. Surgical Oncology, Mansoura Oncology Centre, Mansoura Faculty of Medicine, Mansoura, Egypt;3. Department of Diagnosis and Oral Radiology, Mansoura Faculty of Dentistry, Mansoura, Egypt;1. Department of Oral & Maxillofacial Surgery, S.C.B. Dental College & Hospital, Cuttack Odisha, India;2. Department of Preventive & Social Medicine, S.C.B. Medical College & Hospital, Cuttack Odisha, India;1. Faculty of Health, Social Care and Medicine, Edge Hill University, Ormskirk, UK;2. Liverpool Head and Neck Centre, Liverpool University Hospital Aintree, Liverpool, UK;3. Astraglobe Ltd, Congleton, Cheshire, UK;4. Department of Sport & Physical Activity, Edge Hill University, Ormskirk, UK;1. Department of Oral and Maxillofacial Surgery, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany;2. Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany;1. Orthodontic Department, UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia;2. Orthodontics and Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA;3. Division of Oral Development and Behavioural Sciences, UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia;4. School of Computer Science and Software Engineering, The University of Western Australia, Crawley, Western Australia, Australia;5. Private Maxillofacial Surgery Practice, Perth, Australia |
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| Abstract: | This retrospective cohort study aimed to identify the best anatomical reference for predicting the posterior superior alveolar artery (PSAA) location. Computed tomographic images of 90 maxillary sinuses were evaluated. We studied five references, including the alveolar crest, maxillary sinus floor, zygomatoalveolar crest, hard palate and soft palate, and measured the distances between them and the PSAA. Variations in the distance were evaluated by the standard deviation and coefficient of variation (CV). The zygomatoalveolar crest was an unstable reference, owing to its high standard deviation and CV. The smallest CV was for the distance between the alveolar crest and PSAA, although the distance was smaller in edentulous jaws than dentulous jaws. The distance between the sinus floor and PSAA was larger in male and edentulous patients. The PSAA was detected in 40.0%, 44.4%, 54.4% and 56.7% of the sinus walls at the first and second premolar and the first and second molar positions, respectively. At these tooth positions, the respective heights above the hard palate were 11.2 ± 4.9, 8.2 ± 4.9, 6.2 ± 2.8 and 8.1 ± 2.9 mm. The hard palate was the most stable reference for predicting the location of the PSAA, irrespective of sex, age and dentition. |
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| Keywords: | maxillary sinus maxillary artery computed tomography spiral palate hard dental implants |
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