Results 21 to 30 of about 411,620 (246)
Revitalization of traumatized immature tooth with platelet-rich fibrin
Contemporary Clinical Dentistry, 2015 Endodontic treatment options for immature, nonvital teeth conventionally include surgical endodontics, apexification with calcium hydroxide, or single visit mineral trioxide aggregate plug.
Umrana Faizuddin +3 more
doaj +1 more source
Geosciences, 2012 Chipped and broken functional teeth are common in modern sharks with serrated tooth shape. Tooth damage consists of splintering, cracking, and flaking near the cusp apex where the enameloid is broken and exposes the osteodentine and orthodentine.
John A. Chamberlain, Martin A. Becker
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The Anatomical Record, EarlyView.Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison +9 more
wiley +1 more source
Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny
The Anatomical Record, EarlyView.Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund +4 more
wiley +1 more source
MTA resorption and periradicular healing in an open-apex incisor: A case report
Saudi Dental Journal, 2012 This case report describes the periradicular healing and resorption of an unintentional extrusion of mineral trioxide aggregate (MTA) in an open-apex central incisor.
Saeed Asgary, Sara Ehsani
doaj +1 more source
Medicine in Novel Technology and Devices, 2022 Orthodontic forces can cause stress and strain concentration and microcracks on tooth root surfaces. This study aimed to analyze whether a lingual orthodontic appliance was more likely to cause root stress concentration and root resorption than the ...
Shengzhao Xiao +7 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
The Anatomical Record, EarlyView.The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley +1 more source
Brazilian Dental Science, 2019 Background and aim: There is a high prevalence of root canal transportation in the teeth with the curve. effect of root canal transportation on the success of root canal therapy of tooth is negative and there is no study about comparing RaCe and Neoniti
Mostafa godiny +4 more
doaj +1 more source
Regeneration of immature incisor using platelet rich fibrin: report of a novel clinical application
BMC Oral Health, 2023 Background Endodontic treatment of young permanent teeth with necrotic pulp presents a clinical challenge for the dentist, and conventional endodontic treatment will result in tooth fracture along with a poor prognosis.
Jishnu Krishna Kumar +2 more
doaj +1 more source