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[Clinical application and three-dimensional finite element analysis of along-axis extraction method in mandibular mesial and horizontally impacted third molar surgery].
Beijing Da Xue Xue Bao Yi Xue Ban
February 2025
Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China.
Objective: To investigate the clinical application effect of the along-axis extraction method in the extraction of impacted mandibular third molars (IMTM) and to compare the biomechanical characteristics of different root extraction techniques through three-dimensional finite element analysis.
Methods: A total of 68 patients requiring IMTM extraction were enrolled and randomly divided into two groups: the experimental group underwent the along-axis extraction method, while the control group underwent the traditional buccal bone removal and root extraction method. The duration of the procedure, intraoperative and postoperative complications were recorded.
Marginal Fit and Fracture Resistance of Vertical Versus Horizontal Margins in Monolithic Zirconia Crowns.
Clin Exp Dent Res
February 2025
Department of Prosthodontics, Faculty of Dentistry, Ibb University, Yemen.
Objective: The use of vertical margin design in all-ceramic restoration has generated inquiries regarding its clinical efficacy under diverse dynamic oral conditions. This research aims to assess the marginal fit and fracture resistance of monolithic zirconia crowns featuring vertical margin design as opposed to those with conventional horizontal margin design.
Materials And Methods: Two metal dies were employed to generate replicated resin dies mimicking mandibular first molar preparation.
: Vertical atrophy of the maxilla has traditionally been treated with sinus lift procedures and implant placement, performed in one or two surgical stages. Subsequently, the transcrestal sinus lift technique was introduced, offering distinct advantages in terms of indications and reduced morbidity. Most recently, short implants have emerged as a valid alternative to these procedures, even in cases of severe horizontal resorption, allowing for direct placement in many cases.
View Article and Find Full Text PDFModified titanium post with polished sidewalls and prefabricated shoulders can effectively preserve the teeth with subgingival defects.
Sci Rep
January 2025
Jinzhou Medical University School of Stomatology, Liaoning, People's Republic of China.
Objective of this study was to examine the clinical efficacy and mechanical characteristics of the modified titanium post in the restoration of subgingival defect teeth. Teeth with subgingival defects depth ≥ 2 mm were randomly restored using a fiber post after crown lengthening and a modified titanium post, respectively. Gingival index, sulcus bleeding index, probing depth, tooth mobility, and gingival papilla height were recorded before and after restoration.
View Article and Find Full Text PDFExploration of the Biological Function of Ferroptosis in Bone Nonunion: An Analysis of Bioinformatics Combined Mendelian Randomization.
Mol Biotechnol
January 2025
Orthopedic Trauma, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
To deeply investigate the mechanism of ferroptosis-related genes in the process of bone nonunion based on the GEO database. And using Mendelian randomization to explore the causal association of 15 trace elements with the occurrence of bone nonunion. Bone nonunion RNA-seq data were retrieved and downloaded from the GEO database.
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