Results 81 to 90 of about 49,548 (304)

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

Effective Prevention and Management of Dental Erosion and Tooth Decay [PDF]

open access: yesJournal of Liaquat National Hospital
Dental caries is a chronic non-communicable condition that afflicts people throughout life, from birth to old age. The prime cause of the disease is the cariogenic bacteria that utilize sugars present in food and beverage products for energy ...
Maham Shah
doaj   +1 more source

Tooth surface loss: A review of literature

open access: yesSaudi Dental Journal, 2020
Objectives: Tooth surface loss (TSL) or tooth wear (TW) is an irreversible loss of hard tooth structure caused by factors other than those responsible for dental caries. TSL is observed clinically as attrition, abrasion, abfraction, and erosion.
Abdulhadi Warreth   +4 more
doaj   +1 more source

Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]

open access: yes, 1999
Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Mitchell, S.F.   +2 more
core   +1 more source

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

open access: yesThe Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou   +3 more
wiley   +1 more source

Effect of regenerating toothpastes on abrasion of eroded enamel and dentinWhy Is This Important?

open access: yesJADA Foundational Science
Background: This in vitro study evaluated the effect of self-declared enamel regenerating toothpastes on advanced erosive tooth lesions. Methods: A total of 48 bovine crown and root samples were allocated into the toothpastes: Elmex Erosion Protection ...
Mariele Vertuan, PhD   +4 more
doaj   +1 more source

Pengaruh Mengonsumsi Minuman Tuak Terhadap Erosi Gigi Di Desa Marioriaja Kecamatan Marioriwawo Kabupaten Soppeng [PDF]

open access: yes, 2017
Palm wine from the palm is a typical drink of Marioriwawo, Soppeng. Bitter palm wine taken from fermented fruit of the sugar plant intercepts (Arenga pinnata) which is called sap.
Dahniar, D. (Dahniar)   +1 more
core  

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

Efficacy and safety of TiF4 varnish in preventing erosive tooth wear in a rat animal model

open access: yesScientific Reports
An animal model was applied to develop erosive tooth wear (ETW) and to evaluate the efficacy and safety of titanium tetrafluoride (TiF4) in preventing ETW.
Mariele Vertuan   +9 more
doaj   +1 more source

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

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