Results 11 to 20 of about 6,314 (145)

The lower jaw of Devonian ray‐finned fishes (Actinopterygii): Anatomy, relationships, and functional morphology

The Anatomical Record, EarlyView.
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman, Rodrigo Tinoco Figueroa, Robert R. Higgins, Stephanie E. Pierce, Michael I. Coates, Emily M. Troyer, Vincent Fernandez, Kathleen Dollman, Jing Lu, Min Zhu, Matt Friedman, Sam Giles   +11 more
wiley   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Comparison of Three‐Dimensional Accuracy Between Digital and Conventional Definitive Impressions of Edentulous Arches: A Clinical Study [PDF]

Health Sci Rep
ABSTRACT Background and Aims This clinical study evaluated the three‐dimensional discrepancies between digital and conventional definitive impressions of edentulous arches for complete denture fabrication. Methods Ten edentulous patients (n = 16 arches: 8 maxillary and 8 mandibular) were enrolled.
Khiavi H, Rahman W, Mosaddad S, Habibzadeh S.   +3 more
europepmc   +2 more sources

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Perigraftitis treatment and histology: A case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background Currently, the two diagnoses of inflammatory peri‐implant diseases are peri‐implant mucositis and peri‐implantitis. The etiology of peri‐implant mucositis and peri‐implantitis is bacterial colonization of the implant. Thus, removal of the implant should eliminate the infection and allow the inflammation to resolve. However, at least
Jonathan H. Do, Charles M. Cobb, John T. Shen   +2 more
wiley   +1 more source

A rare mental foramen variation and the role of cone‐beam computed tomography in preventing nerve injury: A case report

Clinical Advances in Periodontics, EarlyView.
Abstract Background The interforaminal space is frequently used for dental implant placement due to its strategic location between the bilateral mental foramina. However, neurosensory disturbances following surgical intervention near the mental foramen (MF) can occur in up to 43% of cases.
Magdalena Orlowska, Hend Abulatifa, Muhammad H. A. Saleh, Hom‐Lay Wang   +3 more
wiley   +1 more source

Using E‐portfolios to Identify Threshold Concepts in Removable Prosthodontics

Journal of Dental Education, EarlyView.
ABSTRACT Introduction Training in removable prosthodontics traditionally includes a preclinical laboratory component that precedes clinical exposure. Students struggle to relate the laboratory component to clinical work, because successful learning in removable prosthodontics involves many threshold concepts, some of which have been identified ...
Edward Waters, Delyse Leadbeatter
wiley   +1 more source

Titanium migration and bone response in loaded osseointegrated implants: ESEM‐EDX analysis in Macaca fascicularis

Journal of Periodontology, EarlyView.
Abstract Background Titanium nanoparticle (TP) migration into peri‐implant bone may influence osseointegration. It remains unclear how loading protocols may affect TP distribution. This study aimed to detect TP in the bone around implants undergoing different loading protocols in Macaca fascicularis.
Fausto Zamparini, Andrea Spinelli, Maria Giovanna Gandolfi, Stefano Chersoni, Achille Tarsitano, Giovanni Badiali, Chooi Gait Toh, Carlo Prati, Georgios Romanos   +8 more
wiley   +1 more source