Results 61 to 70 of about 28,794 (310)

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Three-dimensional arch morphology differences in the invisible orthodontic treatment of extracted and non-extracted patients [PDF]

open access: yes口腔疾病防治
Objective To investigate the accuracy of the mandibular curve of Spee and mandibular curve of Wilson curve, mandibular posterior crown inclination, maxillary and mandibular arch width, and mandibular incisor labial inclination changes in the invisible ...
REN Lei, ZHENG Ze, ZHANG Jiashun, ZHANG Miaomiao
doaj   +1 more source

New partial skeleton of Homo habilis from the upper Burgi Member, Koobi Fora Formation, Ileret, Kenya

open access: yesThe Anatomical Record, EarlyView.
Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine   +8 more
wiley   +1 more source

Evaluation of prevalence and cause of endodontic treatment of permanent molars in 10-year-old children of Riyadh, Saudi Arabia

open access: yesJournal of Pharmacy and Bioallied Sciences
The study aimed to assess the prevalence and cause of endodontic treatment in the first permanent molars of children aged ten in Saudi Arabia. Out of 824 children, 104 had dental caries, with a prevalence rate of 12.62%.
Dalia Alharthi   +5 more
doaj   +1 more source

Rethinking brachycephaly: Anatomical implications and health considerations in lagomorphs

open access: yesThe Anatomical Record, EarlyView.
Abstract Brachycephaly in domestic rabbits is increasingly perceived by welfare organizations as associated with significant health complications, particularly oral pathologies. Despite this perception, comparative anatomical research into rabbit brachycephaly is limited compared to that of dogs and cats, compelling an in‐depth examination of its ...
Helaina Cressy   +3 more
wiley   +1 more source

The Rotation of Maxillary First Molars, Mandibular First Molars, and Maxillary First Premolars in Acceptable Occlusions

open access: yesAustralasian Orthodontic Journal, 1997
Abstract The rotation of the maxillary molars is considered important in the orthodontic treatment of malocclusions. In this study, a computer analysis program was developed to examine the rotations of maxillary molars, mandibular molars, and maxillary first premolars in casts of permanent dentitions with acceptable occlusions.
Kristian Hansen G.   +5 more
openaire   +3 more sources

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind   +6 more
wiley   +1 more source

Prevalence of OSA Risk and Bruxism in Children With Autism Spectrum Disorders

open access: yesAutism Research, EarlyView.
ABSTRACT Children with autism spectrum disorder (ASD) often present with sleep disorders, including obstructive sleep apnea (OSA), a condition characterized by upper airway obstruction during sleep. Bruxism has been recently described as being associated with OSA.
Anna Alessandri‐Bonetti   +5 more
wiley   +1 more source

Mandibular Carnassial Tooth Malformations in 6 Dogs—Micro-Computed Tomography and Histology Findings

open access: yesFrontiers in Veterinary Science, 2019
Objective: To document the clinical, radiographic, and histological characteristics of mandibular first molar teeth with developmental abnormalities previously attributed to dens invaginatus and enamel pearls in dogs.Materials and Methods: Affected ...
Kevin K. Ng   +6 more
doaj   +1 more source

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