Results 11 to 20 of about 123,231 (342)

Revision of Dadagulella gen. nov., the “Gulella radius group” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies [PDF]

open access: yes, 2013
The genus Dadagulella gen. nov. is described to include 16 species of small, dentate, ovateacuminate Afrotropical snails. An identification key is provided and biogeography, anatomy and systematics are discussed. The type species is the Kenyan D. radius (
Rowson, Ben, Tattersfield, Peter
core   +3 more sources

Current Perspectives on Tooth Implantation, Attachment, and Replacement in Amniota

open access: yesFrontiers in Physiology, 2018
Teeth and dentitions contain many morphological characters which give them a particularly important weight in comparative anatomy, systematics, physiology and ecology.
Thomas J. C. Bertin   +6 more
doaj   +1 more source

Prevalence of malocclusion and non-physiological oral habits in primary school Children from Ercilla, Chile.

open access: yesJournal of Oral Research, 2020
Introduction: Dentomaxillary Anomalies (DMA) affect the growth and morphology of the stomatognathic system of individuals, representing a public health problem. Few studies have described its prevalence among vulnerable populations in Chile.
Camila Candia-Castillo   +2 more
doaj   +1 more source

Robust age estimation of southern sea otters from multiple morphometrics

open access: yesEcology and Evolution, 2020
Reliable age estimation is an essential tool to assess the status of wildlife populations and inform successful management. Aging methods, however, are often limited by too few data, skewed demographic representation, and by single or uncertain ...
Teri E. Nicholson   +8 more
doaj   +1 more source

Microbial Relationship of Carious Deciduous Molars and Adjacent First Permanent Molars

open access: yesMicroorganisms, 2023
(1) Epidemiological studies have shown that deciduous molar caries are related to and more severe than permanent molar caries. This study aimed to investigate whether caries subtypes in deciduous molars were associated with caries in first permanent ...
Weihua Shi, Jing Tian, He Xu, Man Qin
doaj   +1 more source

Evidence of strong stabilizing effects on the evolution of boreoeutherian (Mammalia) dental proportions. [PDF]

open access: yes, 2019
The dentition is an extremely important organ in mammals with variation in timing and sequence of eruption, crown morphology, and tooth size enabling a range of behavioral, dietary, and functional adaptations across the class.
Archibald J. D.   +26 more
core   +5 more sources

Bony pseudoteeth of extinct pelagic birds (Aves, Odontopterygiformes) formed through a response of bone cells to tooth-specific epithelial signals under unique conditions

open access: yesScientific Reports, 2018
Modern birds (crown group birds, called Neornithes) are toothless; however, the extinct neornithine Odontopterygiformes possessed bone excrescences (pseudoteeth) which resembled teeth, distributed sequentially by size along jaws.
Antoine Louchart   +5 more
doaj   +1 more source

Hyaenodontidae of the upper Eocene of California [PDF]

open access: yes, 1933
Since the announcement(1) of the discovery of upper Eocene mammals in the Sespe deposits north of the Simi Valley, California, excavations have been continued in these beds, particularly at Locality 150 C. I. T. Vert.
Stock, Chester
core   +1 more source

DENTITION. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1898
n ...
openaire   +2 more sources

Oral health status for primary dentition – A pilot study

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2021
Introduction: Formulating an oral health status which will include oral hygiene index (OHI) exclusively for children, deft index, and the incidence of white spot lesions (WSL) will make it easier for the examiner to assess the current oral health status ...
Janvi Manish Gandhi   +3 more
doaj   +1 more source

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