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Template for positioning miniplates (PUNPLAPOT-M) on mandibular symphysis: Novel innovation.
Natl J Maxillofac Surg
November 2024
Fellow of International Association of Oral and Maxillofacial Surgeons, Chicago, USA.
Purpose: This study was conducted to check the efficacy of PUNPLAPOT-innovative Template for positioning of the bone miniplate for fracture fixation.
Material And Methods: Twenty dried mandible specimens were used in this study. The specimens were then divided into two groups using random sampling.
Mandibular anatomy of a new specimen of a prozostrodontian cynodont (Eucynodontia: Probainognathia) from the Upper Triassic of Brazil.
Naturwissenschaften
January 2025
Centro de Apoio à Pesquisa Paleontológica da Quarta Colônia Universidade Federal de Santa Maria (CAPPA/UFSM, Rua Maximiliano Vizzotto, 59897230-00, São João do Polêsine, Rio Grande do Sul, Brazil.
Prozostrodontia is a clade of probainognathian cynodonts that exhibit several morphological innovations later inherited by mammals. The earliest representatives of this group have been found in the Upper Triassic deposits of southern Brazil. In this study, we report the discovery of a probainognathian cynodont from the Buriol site (São João do Polêsine, Rio Grande do Sul, Brazil), Hyperodapedon Assemblage Zone (Late Triassic).
View Article and Find Full Text PDFTaxonomic revision of the SK 15 mandible based on bone and tooth structural organization.
J Hum Evol
January 2025
Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China; CAS Center for Excellence in Life and Paleoenvironment, Beijing 100044, China.
The hominin mandible SK 15 was discovered in April 1949 in Swartkrans Member 2, dated to ∼1.4 Ma. Albeit distorted on the right side, the left and right corpus of SK 15 are relatively low and thick, even compared to most Early to Middle Pleistocene Homo specimens.
View Article and Find Full Text PDFExposed weapons: A revised reconstruction of the facial anatomy and life appearance of the saber-toothed cat Megantereon (Felidae, Machairodontinae).
Anat Rec (Hoboken)
December 2024
Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain.
Megantereon was a widespread saber-toothed felid from the Pliocene and Pleistocene of the Old World and North America, but its rarity in the fossil record makes it complicated to restore its life appearance. Lack of complete specimens makes it necessary to combine information from fossils of different individuals to reconstruct their facial anatomy. In this work, we combine the analysis of skulls and mandibles of Megantereon from various fossil sites with the study of extant carnivorans through dissection, 3D scans, and the observation of live individuals.
View Article and Find Full Text PDFThe Three-Dimensional Investigation of the Radiographic Boundary of Mandibular Full-Arch Distalization in Different Facial Patterns.
J Pers Med
October 2024
Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung, University College of Medicine, Kaohsiung 833253, Taiwan.
Objective: Mandibular full-arch distalization (MFD) is a popular approach, particularly in non-extraction cases. However, we still cannot confirm whether facial patterns affect the amount of limits. This study aimed to determine the anatomical MFD limits in patients with different facial patterns.
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