Results 91 to 100 of about 383,231 (249)

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Calcium hydroxide induced apical barrier in fractured nonvital immature permanent incisors

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2010
Management of trauma to an immature permanent incisor is a challenge, especially when the pulp is necrotic. The aim of this study is to discuss the management of fractured maxillary right and left central incisors with immature root apex.
Vellore K
doaj  

Post-Traumatic Mineral Trioxide Aggregate (MTA) Apexification in an Immature Permanent Tooth: A Five-Month Follow-Up

Denta
Background: The management of permanent teeth with pulp necrosis and an open apex presents a significant challenge in endodontics because the thin dentinal walls elevate the risk of root fracture and make it difficult to achieve an adequate apical seal ...
Abshari Rizky Sudjatmoko, Agni Febrina Pargaputri   +1 more
doaj   +1 more source

Retrieval of extruded mineral trioxide aggregate using a novel suction device

Contemporary Clinical Dentistry, 2018
Treatment of necrotic immature permanent teeth is an exigently demanding situation for an endodontist. Regenerative endodontic procedures are being employed for such teeth in a hope to restore a functional pulp tissue and continue root development ...
Meenu Dhiman, Jigyasa Duhan, Ruchi Juneja, Sanjay Tewari, Pankaj Sangwan   +4 more
doaj   +1 more source

Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)

The Anatomical Record, EarlyView.
Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach, Julia Schaar, Christine Böhmer   +2 more
wiley   +1 more source

Regenerative Endodontic Treatment in Dentinogenesis Imperfecta-Induced Apical Periodontitis

Case Reports in Dentistry
Pulp involvement of immature permanent teeth with dentinogenesis imperfecta is challenging and could lead to extraction. A case of dentinogenesis imperfecta-induced periapical periodontitis of an immature permanent tooth was treated with regenerative ...
Ying Liao, Ting Pan, Xianghui Xing
doaj   +1 more source

The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

The Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro, Hugo Bampi, João P. P. Araújo, Marina B. Soares, Gustavo R. Oliveira   +4 more
wiley   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Effect of Mineral Trioxide Aggregate Apical Plug Thickness on Fracture Resistance of Immature Teeth

, 2017
The aim of this study was to compare the fracture resistance of simulated immature teeth after using different thicknesses of mineral trioxide aggregate (MTA) apical plugs.Fifty-two human maxillary anterior teeth were used.
Sibel Koçak, Ersan Çiçek, Neslihan Yılmaz, Baran Can Sağlam, M. Murat Koçak, Burcu Bilgin   +5 more
core   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source