Results 51 to 60 of about 59,358 (266)

A scanning electron microscopic study of the patterns of external root resorption under different conditions

open access: yesJournal of Applied Oral Science, 2009
OBJECTIVE: The aim of this study was to examine if there are qualitative differences in the appearance of external root resorption patterns of primary teeth undergoing physiologic resorption and permanent teeth undergoing pathological root resorption in ...
Ravindran Sreeja   +4 more
doaj   +1 more source

Clinical and radiographic analysis of traumatized primary teeth and permanent successors: Longitudinal study

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2020
Background: Dental trauma can determine the occurrence of sequelae in the deciduous tooth and due to the anatomical proximity to the germ of the successor permanent tooth, it frequently causes changes to the developing teeth.
Daniela Maria Carvalho Pugliesi   +3 more
doaj   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen   +3 more
wiley   +1 more source

Primary double teeth in siblings: A report

open access: yesSRM Journal of Research in Dental Sciences, 2016
Double teeth are developmental malformations affecting both primary and permanent dentition. This article describes primary double teeth in both the siblings of a family.
Santanu Mukhopadhyay   +3 more
doaj   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Displacement and Dilaceration of Permanent Teeth as a sequel of trauma to Primary Teeth diagnosed by CBCT: A Rare Case Report

open access: yesOrthodontic Journal of Nepal, 2016
Dentoalveolar trauma to the primary teeth can result in displacement, dilaceration, discoloration, delayed eruption and impaction of permanent teeth. Displacement and dilaceration of permanent teeth is the most common sequel of such injuries.
Pooja Pokharel   +3 more
doaj   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

Mesiodistal width correlation between primary and successor mandibular teeth: implication for early orthodontic diagnosis

open access: yesFrontiers in Dental Medicine
BackgroundMost studies on permanent tooth width prediction focus on the predictive value of permanent teeth, however only a few studies examine the predictive value of primary teeth.
Aleyna Cakir   +7 more
doaj   +1 more source

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