Results 61 to 70 of about 51,027 (312)

Root canal morphology of mandibular premolars

The Journal of the American Dental Association, 1978
Four hundred mandibular first premolars and 400 mandibular second premolars were decalcified, injected with dye, and made transparent to determine the number of root canals, their type, the ramifications of the main root canal, the location of apical foramina and transverse anastomoses, and the frequency of apical deltas.
Dr. Vertucci is assistant professor in the department of endodontics, College of Dentistry, University of Florida, Gainesville ( host institution ), Vertucci, Frank J. ( author )   +1 more
openaire   +3 more sources

The revision of baphetids from the Middle Pennsylvanian of the Czech Republic: Morphology, ontogeny, palaeoecology, and the reassessment of the phylogeny of Baphetoidea

The Anatomical Record, EarlyView.
Abstract The baphetoids represent a clade of the Carboniferous stem‐tetrapods (Middle Mississippian—Middle Pennsylvanian) with a characteristic extension of the orbits into antorbital vacuities, which formed keyhole‐shaped openings on the skull. The more derived baphetids were crocodile‐like piscivores frequently occurring in coal‐bearing lacustrine ...
Pavel Barták, Martin Ivanov, Boris Ekrt
wiley   +1 more source

Treatment of Abscessed Primary Molars Utilizing Lesion Sterilization and Tissue Repair: Literature Review and Report of Three Cases [PDF]

, 2014
Purpose: The purpose of this report was to review an emerging alternative treatment to pulpectomies and extractions for nonvital primary teeth called lesion sterilization and tissue repair (LSTR) and provide the results of three clinical case ...
Barbeau, Lori, Burrus, David, Hodgson, Brian D.   +2 more
core   +1 more source

Second Root Canal in Mandibular Incisors: an Ex Vivo Cone-Beam Computed Tomography (CBCT) Study

Balkan Journal of Dental Medicine, 2018
Background/Aim: To analyze the internal morphology of mandibular incisors with two root canals using cone-beam computed tomography (CBCT). Material and Methods: 289 (143 central and 146 lateral) extracted intact mandibular incisors were radiographed for ...
Kalaitzoglou Maria Elpida, Kantilieraki Eleni, Beltes Charalampos, Angelopoulos Christos, Beltes Panagiotis   +4 more
doaj   +1 more source

Mandibular incisors with two canals are associated with the presence of the distolingual root in mandibular first molars: a cone-beam computed tomographic study

BMC Oral Health, 2022
Background This study aimed to evaluate the root canal configurations and the association between mandibular first molars and distolingual root (DLR) and mandibular incisors using cone-beam computed tomography (CBCT).
Ju-Bin Lee, Min-Seock Seo
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

Correlation between root canal anatomy of mandibular incisors and premolars in Western Uttar Pradesh population of India - A cross sectional study

Endodontology
Aim: This study aimed to evaluate the correlation between the presence of two canals in mandibular incisors and multiple canals in mandibular premolars in the Western Uttar Pradesh population of India using cone-beam computed tomography (CBCT).
Preeti Mishra, Vineeta Nikhil, Padmanabh Jha, Shalya Raj, Rohit Ravinder, Sonal Sahu   +5 more
doaj   +1 more source

Evaluation of Anatomical Variations of Mandibular Canal through Cone Beam Computed Tomography

مجله دانشکده دندانپزشکی اصفهان, 2021
The inferior alveolar canal is an important anatomical structure in the field of dentistry implants and cone beam computed tomography (CBCT) is an important diagnostic technique.
Shirin Pazhuhandeh, Hasan Momeni, Shahab Etemadi, Arman Ebrahimi   +3 more
doaj   +1 more source

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

The 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

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

The Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey, Eloy Gálvez‐López, Anthony Herrel, Laura B. Porro   +3 more
wiley   +1 more source