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A CT Radiologic Assessment of the Incidence of Cochlear-Facial Dehiscence and the Thickness of Bone between the Cochlea and Facial Nerve among Normal Temporal Bones.
J Neurol Surg B Skull Base
February 2025
Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, California, CA 90095, United States.
Cochlear-facial dehiscence (CFD) is a relatively new diagnosis which occurs when the bony partition between the labyrinthine segment of the facial nerve and the cochlea is dehiscent. This is considered one of several third window lesions which produce varying degrees of auditory and vestibular symptoms. Imaging studies have identified a consistently higher incidence of CFD when compared with the only histopathologic study present in the literature.
View Article and Find Full Text PDFUnveiling pterion variability: a meta-analytic approach to enhance neurosurgical precision.
Surg Radiol Anat
January 2025
Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Purpose: This meta-analytical systematic review aims at investigating the variability of the pterion, focusing on its morphological types and precise distances from various bony landmarks. Additionally, the neurosurgical significance of this critical cranial landmark is examined in depth.
Methods: The systematic review was conducted following PRISMA 2020 and Evidence-based Anatomy Workgroup guidelines for anatomical studies.
Tailoring and characterization of bioactive graft material for alveolar bone preservation and regeneration in fresh extraction sockets of dog model.
Sci Rep
January 2025
Tissue Engineering Laboratories, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
The objective of this study was to tailor an osteoinductive scaffold for alveolar bone regeneration and around immediately placed implants in extraction sockets of dogs. Tailored amorphous multiporous bioactive glass (TAMP -BG) was prepared and characterized for bioactivity and response of human alveolar bone marrow mesenchymal stem cells (hABMSCs). Extraction sockets of twenty-two male mongrel dogs received TAMP-BG in the right side around implant in the distal socket of the mandibular fourth premolar (P4), while the adjacent empty mesial socket of the same tooth was filled with the same graft.
View Article and Find Full Text PDFEvaluation of stress patterns in teeth with endodontic treatment and periapical lesions as abutments for fixed prosthesis: a finite element analysis study.
BMC Oral Health
January 2025
Department of Agr. Machinery and Technology Engineering, Akdeniz University, Antalya, Turkey.
Background: Examining stress distributions in abutment teeth with periapical lesions is essential for understanding their biomechanical impact on dental structures and tissues. This study uses finite element analysis (FEA) to evaluate these stress patterns under occlusal forces, aiming to enhance treatment strategies and prosthetic designs.
Methods: Three FEA models were created: a healthy mandibular premolar (Model 1), a premolar with a single crown and a lesion repaired using a fiber-post (Model 2), and 3) a premolar with a lesion repaired using fiber-post to support a four-member bridge (Model 3).
INCUOLATION THE BOTULINUM TOXIN-B IN THE ZYGOMITICUS OF THE RAT, FOLLOWED BY EVALUATION IT'S EFFECT HISTOLOGICALLY ON THE ZYGOMATIC BONE.
Georgian Med News
November 2024
1Department of biology, College of Education for Women, University of Kirkuk, Iraq.
Background: Botulinum toxin is an attenuated neurotoxin of Clostridium Botulinum gram positive bacterial, which is used in medication sialorrhea, cervical dystonia, hyperhidrosis and non-surgical cosmetic operation (aesthetic) such as facial wrinkles and reduced the bulky appearance hypertrophied of masseter muscle. This study was designed to revealed the effect of zygomiticus inoculation of botulinum toxin B in zygomatic muscle of rats on zygomatic bone.
Methods: A total of 25 male albino rats (200-260 gm) were injected facial intramuscular by a single dose of 2.
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