Results 81 to 90 of about 15,943 (256)

Restoration of human tooth enamel

BMEMat
Human tooth enamel, consisting of hydroxyapatite nanocrystals (∼85–88 vol%), proteins (∼2‐3 vol%), and requisite water (∼10–12 vol%), is 1–3 mm thick at the outer layer of the tooth.
Hanlin Liu, Bo Li, Mingrui Gao, Yangbei Li, Xiuyi Yang, Fengshi Li, Zhi Cai, Yi Liu, Shaojia Liu, Hewei Zhao, Lin Guo   +10 more
doaj   +1 more source

Surface Physical and Mechanical Properties of Short Fibre Reinforced Composite Resins in Direct Restorative Dentistry: A Systematic Review

Australian Dental Journal, EarlyView.
ABSTRACT Background Short Fibre Reinforced Composite resins may be used to restore odontogenic tissues and have enhanced physical and mechanical properties compared with conventional resins. However, their surface characteristics remain a concern, and this has limited their use as direct dental restorative materials.
Murray Macpherson, Michael Liddell, Touraj Nejatian   +2 more
wiley   +1 more source

Evaluation of the Adequate Radiopacity of Cavity Lining/Base and Core Build‐Up Light Cured Composite Resins

Australian Dental Journal, EarlyView.
ABSTRACT Background This study aimed to compare the radiopacity of composite resins (CR) used as lining, base, and core‐build up materials with enamel and dentine and evaluate their compliance with ISO 4049. Methods Specimens of 1, 2, and 3 mm thicknesses; (n = 6) were fabricated from 13 low‐viscosity and 10 regular‐viscosity CRs.
Carolina Alves Andrade, Isabela de Souza Silva, Letícia Passarelli Petris, Savio José Cardoso Bezerra, Cláudio Costa, Maria Angela Pita Sobral   +5 more
wiley   +1 more source

Effects of Calcium Hydroxide Paste and Access Cavities on Fracture Strength of Mature and Simulated Immature Human Teeth: Ex Vivo

Australian Endodontic Journal, EarlyView.
ABSTRACT The aim was to examine whether a Ca(OH)2 paste affects fracture strength of teeth. Sixty extracted maxillary central incisors were prepared to simulate immature teeth. Another 40 were used as mature teeth. The ten groups (n = 10) were: (1) immature control; (2) immature + access; (3) immature + access + 1 m Ca(OH)2; (4) immature + access + 12 ...
Naseem M. Hashim, Paul V. Abbott
wiley   +1 more source

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +1 more source

Aesthetic perceptions and social judgments about different enamel opacities

Brazilian Oral Research
This study aimed to evaluate adolescents’ aesthetic perceptions and their social judgments regarding different enamel opacities. Sample size was calculated and resulted in the inclusion of 100 adolescents (aged 10 to 15 years) from a public school in ...
Fernanda Mafei Felix da SILVA, Marcela Baraúna MAGNO, Aline Borburema NEVES, Raildo da Silva COQUEIRO, Marcelo de Castro COSTA, Lucianne Cople MAIA, Matheus Melo PITHON   +6 more
doaj   +1 more source

Provisioning a Silk Road City: Herd Management Strategies at the Urban Site of Dzhankent, Kazakhstan

Archaeometry, EarlyView.
ABSTRACT This study presents evidence for herd management at the early medieval city of Dzhankent in southern Kazakhstan. Located along the Northern Silk Road, Dzhankent was a key trading node linking northern and southern areas between the 9th and 10th centuries ce.
Kara Larson, Iride Tomažič, A. Haruda, A. Tazhekeyev, S. Bilalov, H. Härke, I. Arzhantseva, Alicia R. Ventresca‐Miller   +7 more
wiley   +1 more source

Developmental enamel defects and their relationship with caries in adolescents aged 18 years. [PDF]

Sci Rep, 2023
Olczak-Kowalczyk D, Krämer N, Gozdowski D, Turska-Szybka A.   +3 more
europepmc   +1 more source

Chromatin Remodeller BRD9 Orchestrates Odontoblastic Differentiation via Coordinating RUNX2‐KLF4

Cell Proliferation, EarlyView.
During odontoblast lineage commitment, the chromatin remodeller BRD9 acts as a critical epigenetic coordinator, orchestrating the chromatin landscape to facilitate synergistic binding of key transcription factors RUNX2 and KLF4 to target loci for odontogenesis.
Wenrui Zeng, Yuxiu Lin, Yongyan Gao, Delan Huang, Yuanyuan Li, Honglei Ruan, Guohua Yuan, Huan Liu, Zhi Chen   +8 more
wiley   +1 more source

Assessing the Impact of Diet on Enamel Hypoplasia in Children

Journal of Pharmacy and Bioallied Sciences
Background: Enamel hypoplasia is a developmental defect of enamel characterized by incomplete or defective enamel formation. It is often influenced by genetic, systemic, and environmental factors, including diet.
Manoj Meena, Amreen Aijazuddin, Ramniwas Kumawat, Shipra Saxena, Tanmay Rajput, Ramvilas R. Jaidupally   +5 more
doaj   +1 more source