Objectives: This study aimed to (a) evaluate the stability of the parietal bone of 6-9 months old beagles and (b) examine whether parietal regional superimposition can provide an atraumatic and effective solution for further maxillary expansion study.
Materials And Methods: Six prepubertal 6-month-old male beagles were included. Six miniscrew markers were inserted into the left and right sides of the parietal bone, and two of them were placed bilaterally near the palatal suture. The subjects were scanned with cone beam computed tomography (CBCT) at three time points of T (6 months old), T (7.5 months old) and T (9 months old), respectively. All skull models were analyzed by both the miniscrew superimposition and the parietal regional superimposition.
Results: The two superimposition methods had no significant difference (p > 0.05) in displacements of miniscrew markers between left and right first premolars (PM1). The maxillary superimposition between T and T indicated that the length and width of the maxillary as well as the width of the zygoma root increased significantly (p < 0.05), while the height of maxillary had no significant difference (p > 0.05) over the 3 months.
Conclusions: The parietal bone is relatively stable for beagles from 6 months old to 9 months old and thus can be used as a reference region for 3D skull model superimposition of the beagle dog.
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http://dx.doi.org/10.1111/odi.12929 | DOI Listing |
Neurosurg Focus
January 2025
Departments of1Cranio- and Maxillofacial Surgery and.
Cureus
November 2024
Dermatology, Texas Tech University Health Sciences Center, Lubbock, USA.
Biparietal osteodystrophy, also known as biparietal thinning, is an uncommon illness that causes symmetrical thinning of the parietal bones. It primarily affects women in their sixth and seventh decades of life. We present a case of a 73-year-old female with osteoporosis and osteoarthritis who visited a dermatology clinic with a bulging mass around her vertex scalp, accompanied by episodes of dizziness and blurred vision.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Basic Sciences, Araçatuba Dental School, São Paulo State University - UNESP, Araçatuba, 16066-840, Brazil.
Treatment of complex craniofacial deformities is still a challenge for medicine and dentistry because few approach therapies are available on the market that allow rehabilitation using 3D-printed medical devices. Thus, this study aims to create a scaffold with a morphology that simulates bone tissue, able to create a favorable environment for the development and differentiation of osteogenic cells. Moreover, its association with Plenum Guide, through cell-based tissue engineering (ASCs) for guided bone regeneration in critical rat calvarial defects.
View Article and Find Full Text PDFWorld Neurosurg
December 2024
College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Ministry of National Guard, Riyadh, Saudi Arabia; Department of Pediatrics Neurosurgery, King Abdullah Specialist Children Hospital, Ministry of National Guard, Riyadh, Saudi Arabia.
Background: Sutural anatomy variation has long been a topic of debate among anatomists, paleontologists, and morphologists. While the exact reasons for the prevalence of this variance remains a topic of ongoing discussion, developmental and genetic factors are hypothesized to be the main reasons. Understanding the morphology and occurrence of normal sutural variations in pediatric patients is essential to making the right diagnosis, where a misinterpretation of a sutural bone may lead to an inaccurate assessment, completely misleading the diagnostic process.
View Article and Find Full Text PDFInt J Paleopathol
December 2024
Field Museum of Natural History, Integrative Research Center, Chicago, USA; International Committee on Archaeological Heritage Management (ICAHM) Icomos, Chile. Electronic address:
Objective: The goal of this study was to analyze and differentially diagnose the presence of two large holes noted in the parietal bones of an individual and the presence of traumatic lesions.
Materials: A partially mummified young adult female associated with the Chinchorro culture, 4000 BP, from the coast of the Atacama Desert (northern Chile).
Methods: The bone lesions were evaluated macroscopically and radiologically.
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