Results 51 to 60 of about 57,212 (266)

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

Frontiers 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, Annika Both, Christian Kirschneck, Nikolaos Daratsianos, Cristiano Miranda de Araújo, Juliane Corá, Erika Calvano Küchler, Svenja Beisel-Memmert   +7 more
doaj   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

Anatomical Abnormalities in Multiple Permanent Teeth

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2015
A 12-year-old female patient had reported to Department of Pedodontics and Preventive Dentistry of College of Dental Sciences and Research Centre, Ahmedabad, India with the Chief complain of forwardly placed upper front teeth. On general examination, shape of head was Dolicocephalic and facial form was Oval and Symmetrical [Table/Fig-1,​,2].2].
Karthik Venkataraghavan, Vidhi Shah, Prashant Choudhary, Krishna Trivedi, Shalin Shah   +4 more
openaire   +3 more sources

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

Rotary Mtwo system versus manual K-file instruments: Efficacy in preparing primary and permanent molar root canals

Indian Journal of Dental Research, 2011
Aim: To compare the cleaning ability and preparation time of rotary instruments (Mtwo) and conventional manual instruments (K-file) in preparing primary and permanent molar root canals.
Mohammad-Reza Azar, Maziar Mokhtare
doaj   +1 more source

The tiger salamander as a promising alternative model organism to the axolotl for fracture healing and regenerative biology research

The Anatomical Record, EarlyView.
Abstract Scientists have been captivated by the ability to regenerate, focusing on uncovering the mechanisms of epimorphic regeneration and applying them to human medicine. The axolotl (Ambystoma mexicanum) has become the most intensively studied model in tetrapod regeneration research, particularly concerning limb regeneration.
Vivien Bothe, Nadia Fröbisch
wiley   +1 more source

The prevalence of enamel hypoplasia on permanent teeth among children aged 9-12 years based on the type and teeth affected

Padjadjaran Journal of Dentistry, 2010
Introduction: Enamel hypoplasia is defect which is an abnormality on the enamel structure. The abnormality causes an aesthetic problems that affects the psycologic of a child, and also makes it easier to form a caries. The purpose of this research was to
Desy Permata Sari, Risti Saptarini Primarti, Yetty Herdiyati   +2 more
doaj   +1 more source

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source

Post Traumatic Impaction of Maxillary Deciduous Central Incisor: A Case Report

Erbil Dental Journal
Background and Objectives: Primary tooth impaction is a rare phenomenon when compared to permanent teeth impaction, particularly in upper front teeth.
Bahoz Himdad Majeed
doaj   +1 more source