Results 101 to 110 of about 1,672,311 (290)

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Measurement of tooth size and shape in subjects with hypodontia and a control group using a new image analysis technique. [PDF]

open access: yes, 2000
The literature referred to here provided information concerning the epidemiology of hypodontia and its association with other developmental anomalies.
Al-Sharood, Mohammad H
core   +1 more source

Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)

open access: yesThe Anatomical Record, EarlyView.
Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach   +2 more
wiley   +1 more source

Location of crack lines associated with the prognosis of a cracked tooth restored by occlusal veneer

open access: yesJournal of Dental Sciences
Background/purpose: Crack lines (CLs) in cracked teeth (CTs) are challenging to detect. Since restoring CT by occlusal veneer showed favorable clinical outcomes, we found that CLs could be identified more clearly after tooth preparation during the ...
Wen Yang   +3 more
doaj   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva   +2 more
wiley   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

Evaluation of desensitizing agents for the control of sensitivity in conventional fixed restorations

open access: yesBrazilian Dental Science
Objective: To evaluate and compare the effectiveness of the desensitizing agents Shield Force Plus, Fluor Protector S and Mi Paste Plus, in reducing post-tooth preparation sensitivity in conventional fixed restorations.
Jose Giancarlo Tozo Burgos   +4 more
doaj   +1 more source

Evaluation of Tooth Position Change Between Preparation and Cementation appointments for Overlay Restorations

open access: yes
Aim: This study aimed to evaluate possible tooth displacement—of the prepared tooth or adjacent/antagonist teeth—between the two clinical appointments required for overlay restoration, with or without the use of temporary filling. Materials and Methods:
Claudia Mazzitelli   +6 more
core  

Redescription of the cranial morphology of Amphisbaena braestrupi and Amphisbaena laurenti (Squamata: Amphisbaenidae) from the Pleistocene of Brazil using x‐ray computed tomography

open access: yesThe Anatomical Record, EarlyView.
Abstract Amphisbaenians (Squamata: Amphisbaenidae) are fossorial reptiles with highly specialized cranial morphology, yet their fossil record is frequently limited by fragmentary preservation. This study provides a detailed osteological redescription of the skulls of Amphisbaena braestrupi and Amphisbaena laurenti from the Pleistocene of Lagoa Santa ...
Carolina L. Paiva   +2 more
wiley   +1 more source

Laser use vs. handpiece for tooth preparation: A preliminary in vitro study

open access: yes, 2009
The key fields of research of dental lasers have focused oil the use of different wavelengths on hard and soft tissues; however it is not clear whether they can be used for tooth preparation for full coverage restorations or not.
Ozpinar, B.   +3 more
core  

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