Results 131 to 140 of about 696,005 (339)

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

Surgical management of complex odontoma associated with agenesis of a molar

open access: yesContemporary Clinical Dentistry, 2018
Odontomas are mixed odontogenic tumors composed of mineralized tissue of ectomesenchymal origin. These are usually detected in routine radiographs and may have a variable etiology such as local trauma, genetic mutation, or infection.
Avani Jain   +4 more
doaj   +1 more source

Development of a switchable system for longitudinal and longitudinal-torsional vibration extraction [PDF]

open access: yes, 2012
High-frequency/low-frequency drilling is an attractive technology for planetary exploration tools, and one which has seen considerable innovation in the techniques used to ensure rotation of the front-end cutting bit.
Harkness, Patrick, Lucas, Margaret
core  

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

open access: yesThe 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   +3 more
wiley   +1 more source

Fatal sepsis from appendicitis caused by an impacted tooth. [PDF]

open access: yesJ Surg Case Rep, 2022
Field X, Burton T, Christey G.
europepmc   +1 more source

Evaluation of complications and quality of life of patient after surgical extraction of mandibular impacted third molar teeth

open access: yesBMC Oral Health
The aim of our study is to evaluate the postoperative complications after the extraction of impacted third molar teeth and to investigate the effects of these complications on the quality of life of patients.
Gunay Gojayeva   +5 more
semanticscholar   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

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

Massage Therapy to Control Anxiety Before Extraction of an Impacted Tooth. [PDF]

open access: yesCureus, 2022
Kunusoth R   +4 more
europepmc   +1 more source

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