Results 71 to 80 of about 5,447 (248)

Recent progress in studies of the last million years of human physical and behavioural evolution Avancées récentes dans l’étude du dernier million d'années d’évolution physique et éthologique de l'espèce humaine

Journal of the Royal Anthropological Institute, EarlyView.
This article presents a synthesis of recent developments in the study of human evolution over the past five years. It begins with an overview of hominin species nomenclature and diversity, followed by an examination of the proposed population bottleneck ∼900,000 years ago.
James Cole, Eleanor M.L. Scerri, Mateja Hajdinjak, Chris Stringer   +3 more
wiley   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +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

Developmental enamel defects: a must-know for orthodontic practice

Dental Press Journal of Orthodontics
ABSTRACT Introduction: Developmental Enamel Defects (DED) pose a significant challenge for clinicians, particularly orthodontists. These defects can lead to difficulties in differential diagnosis, orthodontic appliance adhesion, treatment planning, and overall patient management.
Marco Aurélio Benini PASCHOAL, Gabriele ANDRADE-MAIA, Letícia CRISTINE-SILVA, Aniely Ferreira NOGUEIRA, Felícia MIRANDA, Daniela GARIB   +5 more
openaire   +4 more sources

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

Clinical Presentation and Risk Factors for Molar-Incisor and Second Primary Molar Hypomineralization: A Cross-Sectional Study

Pesquisa Brasileira em Odontopediatria e Clínica Integrada
Objective: To identify the clinical presentation of molar incisor hypomineralization (MIH) and hypomineralization of second primary molars (HSPM), including the distribution patterns of presence and severity of lesions, and to investigate the association
Thamirys da Costa Rosa, Fernanda Mafei Felix da Silva, Fernanda Gabriela de Fátima Vieira, Alexandre Rezende Vieira, Andrea Fonseca Gonçalves, Marcelo de Castro Costa, Aline de Almeida Neves   +6 more
doaj  

A step-by-step approach from diagnosing to managing hypomineralized teeth: A narrative review

Saudi Journal for Health Sciences
Developmental defects, such as enamel hypomineralization, affect numerous individuals and can lead to serious problems with the esthetics and masticatory function of the affected teeth.
Amal M. Albalooshy
doaj   +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

The presence and distribution of dental enamel defects and caries in children with celiac disease

The Turkish Journal of Pediatrics, 2008
The aim of this study was to investigate the presence and distribution of developmental enamel defects and caries in children with celiac disease (CD) and compare the results obtained with those of a control group of children without CD.
Aysun Avşar, Ayhan Gazi Kalayci
doaj  

Objective aesthetic performance of Icon treatment by deep infiltration: a case report

Senses and Sciences, 2016
Enamel hypomineralization is characterized by decreased refractive index of the lesion surface as compared to the surrounding sound enamel. Icon® treatment has been recently successfully used for the cosmetic treatment of enamel demineralizations seen ...
Fabrizio Guerra, Marta Mazur, Francesca Rinaldo, Denise Corridore, Debora Pasqualotto, Gianna Maria Nardi, Livia Ottolenghi   +6 more
doaj   +1 more source