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Evaluation of prostheses retained zygomatic and dental implants in large defects in the maxilla due to tumors or major trauma by biomechanical 3- dimensional finite element analysis.
BMC Oral Health
January 2025
Department of Prosthodontics, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey.
Background: Zygomatic implants are becoming an ideal treatment approach for implant-supported prosthesis treatment developed for the atrophic maxilla. This study aims to evaluate the amount and distribution of stress in implants and peri-implant bone using different implant-supported prosthesis configurations in Aramany Class I maxillary defects through 3-dimensional finite element analysis.
Methods: A 3-dimensional finite element model of the Aramany class I defect was created.
Detection of three-rooted mandibular first molars on panoramic radiographs using deep learning.
Sci Rep
December 2024
Department of Dentistry and Central Lab, Ninth People's Hospital of Suzhou, Soochow University, Suzhou, China.
This study aimed to develop a deep learning system for the detection of three-rooted mandibular first molars (MFMs) on panoramic radiographs and to assess its diagnostic performance. Panoramic radiographs, together with cone beam computed tomographic (CBCT) images of the same subjects, were retrospectively collected from 730 patients, encompassing a total of 1444 MFMs (367 teeth were three-rooted and the remaining 1077 teeth were two-rooted). Five convolutional neural network (CNN) models (ResNet-101 and - 50, DenseNet-201, MobileNet-v3 and Inception-v3) were employed to classify three- and two-rooted MFMs on the panoramic radiographs.
View Article and Find Full Text PDFImpacted third molar surgery in older patients-Is patient´s age really a risk factor for complications?
Clin Oral Investig
October 2024
Department of Neurology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
Objectives: The aim of this study was to analyze the influence of patients´ age on perioperative complications in impacted third molar surgery and how established risk factors are affected by age.
Materials And Methods: The clinical findings, digital panoramic radiographs and perioperative data of 200 patients (554 impacted third molars) that had been subjected to tooth extraction, from July 2023 until July 2024, were analyzed. Perioperative complications (Inferior alveolar nerve (IAN) hypesthesia, oroantral communication (OAC), lingual nerve (LN) hypesthesia, postoperative bleeding, postoperative infection) as well as impaction patterns and risk factors (angulation type, bone coverage, depth- and risk scores) were analyzed by age (cut-off 30 years).
Comparison of the accuracy and bias of Demirjian's method for East Asian children and development of Japanese population-specific age estimation formulae.
Leg Med (Tokyo)
November 2024
Division of Forensic Odontology and Disaster Oral Medicine, Department of Forensic Science, Iwate Medical University, 1-1-1, Idaidori, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan. Electronic address:
Article Synopsis
- * An analysis of 1,558 panoramic X-rays from Japanese children showed that their estimated ages were generally higher than their actual ages, similar to findings for children from China, Taiwan, and South Korea.
- * Significant differences in tooth growth and development were noted across East Asian populations, leading to the development of new age estimation equations specifically for Japanese children.
An Overview of Cone-Beam Computed Tomography and Dental Panoramic Radiography in Dentistry in the Community.
Tomography
August 2024
Division of Oral & Maxillofacial Radiology, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
This study reviews the two most important and frequently used systems of tomography used in dentistry today. These are the dental panoramic radiograph (DPR) and cone-beam computed tomography (CBCT). The importance of the DPR has been accentuated by the recent COVID-19 pandemic, as it does not produce an aerosol.
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