Results 51 to 60 of about 2,210,630 (171)

Examples of accessory roots.

, 2021
Mandibular 1st molars with A1 and A2: radix entomolaris (left = distolingual surface, right = lingual surface), B: M3 with radix entomolaris (lingual view), C: M1 with furcation root (buccal view), D: M1 with fused radix paramolaris (buccal view ...
Jason Gellis (11654981), Robert Foley (11654984)   +1 more
core   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source

Cone⁃beam computed tomography evaluation of the distance between the root apex of mandibular molars and the inferior alveolar nerve canal in adults

口腔疾病防治, 2018
Objective To evaluate the spatiotemporal relationship between the root apex of mandibular molars and the inferior alveolar nerve canal (IANC) in adults.
WU Daming
doaj   +1 more source

Successful individualized endodontic treatment of severely curved root canals in a mandibular second molar: A case report

World Journal of Clinical Cases, 2022
BACKGROUND The incidence rate of severely curved root canals in mandibular molars is low, and the root canal treatment of mandibular molars with this aberrant canal anatomy may be technically challenging. CASE SUMMARY A 26-year-old Chinese female patient
Laijun Xu, Jian-Ying Zhang, Zihua Huang, Xiang-Zhu Wang   +3 more
semanticscholar   +1 more source

Root Canal Therapy of a Mandibular First Molar with Five Root Canals: A Case Report

, 2008
A mandibular first molar requiring root canal therapy was found with five canals, three mesial canals, and two distal canals. Initially, four canals (mesiobuccal, mesiolingual, distobuccal, and distolingual) were identified.
Shahi, Shahriar, Rahimi, Saeed, Frough Reyhani, Mohammad   +2 more
core   +1 more source

Morphological plasticity in the dentition of the lungfish Gnathorhiza from the Permian of Brazil: A population‐level geometric morphometric analysis

The Anatomical Record, EarlyView.
Abstract Dental plates are pivotal in the lungfish paleontological record, constituting highly mineralized structures resilient to diagenetic processes. This study provides a detailed description and quantitative shape analysis of 95 newly discovered Gnathorhiza sp. dental plates from the Middle–Late Permian Corumbataí Formation, Brazil.
Mauro B. S. Lacerda, Gustavo H. N. Petreca, Gabriel E. B. de Barros, Ana Emilia Quezado, Marcelo A. Fernandes   +4 more
wiley   +1 more source

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +1 more source

Isthmuses, accessory canals, and the direction of root curvature in permanent mandibular first molars: an in vivo computed tomography study [PDF]

Restorative Dentistry & Endodontics, 2020
ObjectivesThis study was performed to assess the anatomy of mandibular first molars.Materials and MethodsIn this in vivo study, cone-beam computed tomography (CBCT) volumes of 312 bilateral intact first mandibular molars from 156 patients (79 men and 77 ...
Aria Chuppani Dastgerdi, Manizheh Navabi, Vahid Rakhshan   +2 more
doaj   +1 more source

Evaluation of the endodontically-treated distolingual root of the mandibular first molar using cone-beam computed tomography

, 2017
············································································································································································ This retrospective study evaluated the endodontic treatment of a separate ...
Soo-Jeong Hwang, Sung-Joon Kim, Min-Seock Seo   +2 more
semanticscholar   +1 more source

Retrospective analysis of the occurrence and distribution of radix entomolaris in mandibular first molars: A hospital-based study

Endodontology, 2020
Aim: This study aimed to evaluate clinically the prevalence of radix entomolaris (RE) in mandibular first molars in Dakshina Kannada population. Materials and Methodology: Proper clinical records and soft copies of radiographs of patients who had ...
K Naveen Kumar, L Krishna Prasada, S Karthika Raj   +2 more
doaj   +1 more source