Objective: This study aims to identify fracture patterns on the lingual aspect of the mandible following Bilateral Sagittal Osteotomy of the Mandibular Ramus and correlate these patterns with mandibular anatomical characteristics in patients with cleft lip and palate.
Methods: Two hundred cone beam CT scans were analyzed, with 100 scans in the preoperative period to assess mandibular anatomy and 100 in the postoperative period to evaluate the course of fractures on the lingual surface after surgery.
Results: Statistical analysis revealed no correlation between the depth of the mandibular fossa and the type of fracture after bilateral sagittal osteotomy. Similarly, there was no association between the height and angle of the mandibular body and the type of fracture. The most common fracture type observed was the type 3 pattern, characterized by a line running through the mandibular canal. Furthermore, no relationship was identified between the studied anatomical aspects and the occurrence of undesired fractures.
Conclusions: The anatomical data presented in this study can assist surgeons in selecting the safest surgical techniques and optimal osteotomy sites, particularly in patients with cleft lip and palate.
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http://dx.doi.org/10.21142/2523-2754-1202-2024-194 | DOI Listing |
Sci Rep
December 2024
Affiliated Fuyang People's Hospital of Anhui Medical University, Sanqing Road 501, Fuyang, 236000, Anhui, China.
Old thoracolumbar fracture with kyphosis (OTLFK) often results in low back pain, with intervertebral disc degeneration being a significant contributor. We hypothesized that patients with OTLFK exhibit distinct patterns of disc degeneration compared to those with chronic low back pain without kyphotic deformity. This study aimed to investigate the characteristics of disc degeneration in OTLFK patients and explore its association with sagittal spinal parameters and endplate injury.
View Article and Find Full Text PDFBMC Oral Health
December 2024
Department of Conservative Dentistry, Faculty of Dentistry, Minia University, Minia, Egypt.
Objectives: To compare the mechanical performance of partially replaced (repaired) intra-coronal restorations to totally replaced ones in root canal-treated teeth.
Methods: Thirty maxillary second premolars were selected according to strict criteria, mounted on moulds, and had mesio-occluso-distal (MOD) cavities prepared. Resin composite restorative material was used to perform the initial restoration, followed by aging procedures using thermo-mechanical cycling fatigue to replicate six months of intraoral aging.
Sci Rep
December 2024
School of Oil & Natural Gas Engineering, SouthWest Petroleum University, Chengdu, 610500, China.
Unconventional gas reservoirs, characterized by their complex geologies and challenging extraction conditions, demand innovative approaches to enhance gas production and ensure economic viability. Well stimulation techniques, such as hydraulic fracturing and acidizing, have become indispensable tools in unlocking the potential of these tight formations. However, the effectiveness of these techniques can vary widely depending on the specific characteristics of the reservoir.
View Article and Find Full Text PDFSci Rep
December 2024
School of Mechanical Engineering, Yangtze University, Jingzhou, 434023, China.
The design of drill pipe joint thread with unequal taper is proposed to investigate the fracture failure of the API NC38 used in the drill pipe joint of the SU36-8-4H2 well. The effect of changes in thread taper on the stress distribution and mechanical properties of drill pipe joints is analyzed and compared with the API standard thread to determine the optimal thread structure with unequal taper. The results reveal highly concentrated stress at the last engaged thread root of API NC38 single-shoulder thread (SUT) may cause early yield failure of the joint threads.
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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