Results 91 to 100 of about 104,365 (313)
SWISS DENTAL JOURNAL SSO – Science and Clinical TopicsEnamel pearls are paraplasia. This refers to the formation of enamel at an atypical localisation. Enamel pearls are roundish or crescent-shaped structures. They are most frequently found in the root area of deciduous molars and molars. A distinction is made between true and compound enamel pearls.
Markus, Schaffner +2 more
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The Anatomical Record, EarlyView.Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano +3 more
wiley +1 more source
BiomedicinesPeriodontal defects present a significant challenge in dentistry, necessitating innovative solutions for comprehensive regeneration. Traditional restoration methods have inherent limitations in achieving complete and functional periodontal tissue ...
Tsung-Hsi Huang +10 more
doaj +1 more source
Clinics and Practice, 2012 Enamel pearls are one of a number of different enamel structures that can be found on the roots of deciduous and permanent teeth. They have a distinct predilection for the furcation areas of molar, particularly the maxillary third and second molars. However, they have been found less commonly on the apical portions of the root. This report describes an
openaire +3 more sources
Dental crown morphological variation and heterodonty in carcharhiniform sharks
The Anatomical Record, EarlyView.Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley +1 more source
Translucidez e luminosidade de compósitos para esmalte em diferentes espessuras [PDF]
, 2014 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-graduação em Odontologia, Florianópolis, 2014O objetivo deste estudo foi avaliar in vitro a influência da espessura de resina composta para esmalte ...
Almeida, Adriano Gondim
core
Cailiao gongcheng, 2020 Amino acids modified hydroxyapatite (AA/HAP) composites were synthesized in the presence of different concentrations of serine (Ser), aspartic acid (Asp) and glutamic acid (Glu).
LIU Ji-tao +5 more
doaj
Surface Structure Study of Crystal Hydroxy-Apatite from Fluorosis Enamels
Journal of Dentistry Indonesia, 2013 Fluorosis is a condition due to ingestion of excessive amounts of fluor which can cause the change in tooth structure and strength. However, there is still lack of explanation on the surface structure of crystal hydroxyapatite that influences the ...
Abdillah Imron Nasution +2 more
doaj +1 more source
Changes in the Enamel Protein during Enamel Formation
THE JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN, 1973 幼若エナメル質中に含まれている有機質のほとんどを占めている蛋白質は多成分系である事が知られている。それらのうちのどの成分が生理的に重要なのかを明らかにする目的で, 先ずラット幼若エナメル蛋白質についてゲル濾過クロマトグラフィーとSDS-ポリアクリルアミドゲル電気泳動を行なって, 石灰化の進行に伴う蛋白質のパターンの変化を調べた。続いて, ラットに3H-prolineを静注し, そのエナメル質への取込みの時間的な変化をゲル濾過クロマトグラフィーとポリアクリルアミドゲル電気泳動を行なって調べた。その結果は若いstageのmain componentである分子量約20, 000のproline, glutamic acid, histidineに富む成分が初期に多く脱却し, 石灰化が進むに従って分子量15,
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison +9 more
wiley +1 more source