Results 71 to 80 of about 306,705 (291)

A comparative study of silver amalgam and compomer as retrograde filling materials in periapical surgery [PDF]

open access: yes, 2013
Objective: A comparative study is made of the histological effects of silver amalgam versus compomer (Dyract®) 90 days after placement as retrograde filling materials in experimental animals.
Aguirre Urízar, José Manuel   +2 more
core  

An integrative description of a population of Mesobiotus radiatus (Pilato, Binda & Catanzaro, 1991) from Kenya [PDF]

open access: yes, 2018
In a moss sample collected from Mount Kulal in Kenya, a new population of Mesobiotus radiatus was found. Given that the original description of M. radiatus was based solely on the morphology observed by light microscopy and measurements based mostly on a
Kaczmarek, Łukasz   +3 more
core   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

Comparing zero-inflated Poisson, Poisson gamma, and Poisson lognormal regression models in dental health data

open access: yesJournal of Biostatistics and Epidemiology, 2018
Background & Aim: Statistical modeling is one of the most suitable methods for analyzing the relationship between health and medical issues. In the situation of analysis of zero-inflated data, there are different methods.
Farzaneh Neysari   +2 more
doaj  

Lagomorph cranial biomechanics and the functional significance of the unique fenestrated rostrum of leporids

open access: yesThe Anatomical Record, EarlyView.
Abstract The crania of leporid lagomorphs are uniquely fenestrated, including the posterior cranial bones and the lateral portion of the maxilla. The functional significance of the highly fenestrated rostrum has received considerably little attention, despite being absent in other mammalian herbivores with a long rostrum.
Amber P. Wood‐Bailey, Alana C. Sharp
wiley   +1 more source

Factors Affecting the Periapical Status of Root-Filled Canals: A Cross-Sectional Study at the Undergraduate Level

open access: yesInternational Journal of Dentistry, 2017
Objective. The aim was to evaluate the influence of multiple factors on the periapical status of endodontically treated (ET) teeth. Methods. The patients were clinically and radiographically reevaluated after root canal therapy.
George Moreira Costa   +8 more
doaj   +1 more source

Radiographic evaluation and predictors of periapical lesions in patients with root-filled and nonroot-filled teeth in Kuwait

open access: yesIndian Journal of Dental Sciences, 2017
Objective: The objective of this study was to determine the association between periapical health status with the quality of the root filling and was the coronal restoration and identify the predictors of periapical lesion.
Manal Maslamani   +2 more
doaj   +1 more source

The application of amino acid racemization in the acid soluble fraction of enamel to the estimation of the age of human teeth [PDF]

open access: yes, 2008
Estimation of age-at-death for skeletonised forensic remains is one of the most significant problems in forensic anthropology. The majority of existing morphological and histological techniques are highly inaccurate, and show a bias towards ...
Collins, M. J.   +3 more
core   +1 more source

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

open access: yesThe Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

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