Results 21 to 30 of about 7,065 (147)

Palatal pre‐suturing effects on hemostasis and morbidity in connective tissue grafting: A randomized controlled trial

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The study aimed to assess the impact of palatal pre‐suturing on bleeding, postoperative morbidity, wound healing, and quality of life following subepithelial connective tissue graft (SCTG) surgery through a randomized controlled clinical trial.
Melis Ziyaettin   +2 more
wiley   +1 more source

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

open access: yesIntegrative 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   +4 more
wiley   +1 more source

Bonding with Self-Etching Primers - Pumice or Pre-Etch? An In Vitro Study [PDF]

open access: yes, 2010
The objective of this study was to compare the shear bond strengths (SBS) of orthodontic brackets bonded with self-etching primer using different enamel surface preparations. A 2-by-2 factorial study design was used. Sixty human premolars were harvested,
Fitzgerald, Ian J.
core   +1 more source

Exploring dietary adaptations in Ursus minimus: a 3D geometric morphometric analysis of the mandible

open access: yesBoreas, EarlyView.
Using 3D geometric morphometrics, the dietary adaptations of the extinct Auvergne bear (Ursus minimus) are analysed. Its mandibular morphology aligns more closely with omnivorous rather than insectivorous bears, challenging current ideas. The extinct bear Ursus minimus, which lived in Europe during the Pliocene and possibly Early Pleistocene, is ...
Anneke H. van Heteren
wiley   +1 more source

Fossil bears break free from inhibitory cascade constraints at least twice (Ursus minimus and Ursus deningeri) caused by dietary adaptations

open access: yesBoreas, EarlyView.
Bears deviate from the inhibitory cascade model (ICM) during molar size evolution, with two significant deviations linked to changes in diet: Ursus minimus and Ursus deningeri. Many bears exhibit a ‘partial ICM’, highlighting the relationship between relative molar size, dietary adaptations and dental development across different species.
Anneke H. van Heteren, A. Stefanie Luft
wiley   +1 more source

Homo luzonensis and the role of homoplasy in the morphology of hominin insular species

open access: yesCladistics, EarlyView.
Abstract Homo luzonensis lived during the upper Pleistocene in the northern Philippines, east of the Wallace line. The few specimens attributed to this species show a mosaic of plesiomorphies for the genus Homo and apomorphies found in upper Pleistocene Homo species.
Pierre Gousset   +4 more
wiley   +1 more source

An Investigation into the Bonding Properties of New Generation Ceramic Brackets As Compared to a Stainless Steel Bracket [PDF]

open access: yes, 2014
Introduction: More patients are seeking esthetic alternatives for their orthodontic treatment options, which has led to increased use of ceramic brackets in recent years.
Inoue, Ami
core   +1 more source

Effect of deproteinization and tubular occlusion on microtensile bond strength and marginal microleakage of resin composite restorations [PDF]

open access: yes, 2009
Dentin adhesion procedure presents limitations, especially regarding to lifetime stability of formed hybrid layer. Alternative procedures have been studied in order to improve adhesion to dentin.
BASEGGIO, Wagner   +6 more
core   +3 more sources

Kdf1 Regulates Molar Cusp Morphogenesis via the PI3K/AKT/mTOR Signalling Axis

open access: yesCell Proliferation, EarlyView.
Epithelial Kdf1 knockout disrupts molar cusp morphogenesis by promoting inner enamel epithelium proliferation and invagination via PI3K/AKT/mTOR signalling. ABSTRACT Keratinocyte differentiation factor 1 (Kdf1) reportedly plays a significant role in enamel formation.
Jiayu Wang   +9 more
wiley   +1 more source

Britain, industry and perceptions of China : Matthew Boulton, 'useful knowledge' and the Macartney Embassy to China 1792–94 [PDF]

open access: yes, 2006
Global history has debated the emergence of a divergence in economic growth between China and the West during the eighteenth century. The Macartney Embassy, 1792–94, the first British embassy to China, occurring as it did at the end of the eighteenth ...
Berg, Maxine
core   +1 more source

Home - About - Disclaimer - Privacy