Results 101 to 110 of about 4,846,652 (297)

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

Impaction of primary tooth molar in mandibule – case report

open access: yesBrazilian Dental Science, 2018
Tooth impaction results from a mechanical blocking that prevents the tooth from erupt. This situation is frequently associated to permanent tooth as wisdom teeth and canines.
Cleverson Patussi   +4 more
doaj   +1 more source

Curtis, Joseph (Joe) Henry

open access: yes, 2021
Index cards recording information relating to Second World War service of Tooth staff. Cards generally include personal details (including addresses and marital status) and military service details (including service numbers, dates of service, postings ...
Tooth and Co. Ltd.
core  

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini   +3 more
wiley   +1 more source

Comparative evaluation of qualitative and quantitative wear of 3D-printing materials and zirconia against primary tooth enamel: An in vitro study

open access: yesContemporary Pediatric Dentistry
Aim: This study aimed to address the gap in existing literature by evaluating the qualitative and quantitative wear of two three-dimensional (3D) printing materials against primary tooth enamel, in comparison with zirconia, a widely used esthetic crown ...
Ritesh Kalaskar   +3 more
doaj   +1 more source

Colquhoun, Peter Houston

open access: yes, 2021
Index cards recording information relating to Second World War service of Tooth staff. Cards generally include personal details (including addresses and marital status) and military service details (including service numbers, dates of service, postings ...
Tooth and Co. Ltd.
core  

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

open access: yesThe Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla   +7 more
wiley   +1 more source

Evaluation of the relationship of signs and symptoms during the period of eruption of deciduous teeth

open access: yesRevista de Odontopediatria Latinoamericana, 2019
Introduction: Dental eruption is a physiological process, consisting of the migration of the tooth from its intraosseous position in jaw bones to buccal cavity. In infants it is associated with signs and symptoms such as irritability, gingival irritation,
Rangel Bastos de Holanda Teixeira   +3 more
doaj  

[A supernumerary primary tooth inducing impaction of primary incisor: a case report].

open access: yesShoni shikagaku zasshi. The Japanese journal of pedodontics, 1991
A case of a primary supernumerary tooth in a 18 month old girl was reported. 1. The supernumerary tooth was located in the maxillary incisor area. 2. The maxillary left primary central incisor and the primary supernumerary tooth were impacted. 3. The clinical and radiographic findings indicated that the primary tooth in the mesial position was the ...
Kuba, Yoichi   +3 more
openaire   +2 more sources

Supernumerary primary tooth in the primary lateralincisor egion

open access: yes, 2006
Most supernumerary primary teeth erupt in the primary lateral incisor region and are reported to occur in 0.03 to 1.9% in the primary dentition. Most parents fail to recognize them because of their normal shape, eruption and exfoliation. Several theories
김성오   +3 more
core  

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