Results: 3070

Chemical constituents and in vivo preliminary evaluation of the toxicological activity of Ouratea spectabilis (OCHNACEAE) and Clitoria guianensis (Fabaceae) leaves

Biosci. j. (Online); 39 (), 2023
Clitoria guianensis and Ouratea spectabilis, found in the Brazilian Cerrado, are used in folk medicine, despite the few chemical and biological studies reported in the literature. The present study aims to investigate the toxicity and effect of extracts from both species on the microcrustacean Artemia sa...

Effects of high-intensity gymnastics on skeletal muscle proteins

ABSTRACT Introduction: Although the current method of muscle stretching in gymnastics teaching in colleges and universities can reduce sports fatigue, it has been shown to have little effect on the well-being of athletes because it requires a long recovery time from psychological fatigue. Progressive mu...

New bicompartmental model: an application for the production of gases using the in vitro technique

Semina ciênc. agrar; 44 (5), 2023
The purpose of this study was to propose a bicompartmental nonlinear model and to identify the best-performing model between the proposed model and the bicompartmental logistic (BL) mode regarding the quality of fit to the curve of cumulative gas production (CGP) using corn silage, sunflower, and their m...

Acid-Base Resistant Zone in Teeth with the Direct Restoration Using Different Adhesive System Generations: A Systematic Review

ABSTRACT Objective: To find out what the acid-base resistant zone (ABRZ) is and the mechanism of its formation. Material and Methods: This systematic review was based on the search of laboratory studies in which selfetching adhesive systems were used. The electronic database PubMed was used for the sea...

Pulpectomies with Iodoform Versus Calcium Hydroxide-Based Paste: A Preliminary Randomised Controlled Clinical Trial

ABSTRACT Objective: To compare clinical and radiographical pulpectomy outcomes in primary teeth filled with different pastes. Material and Methods: The sample included thirty-eight teeth indicated for pulpectomy due to irreversible pulp inflammation or necrosis from thirty patients (2 to 9 years old). ...

Light-curing of calcium hydroxide-based liners: pH analysis and calcium ion release

Braz. dent. sci; 26 (4), 2023
Objective: Compare the pH values and calcium ion release of calcium hydroxide-based liner materials before and after light-curing. Material and Methods: The materials evaluated were: hydrox-cal white (HW), hydrox-cal dentin (HD), Biocal (BC) and UltraBlend Plus (UB). 120 samples of the liner materials we...

Efeitos bioquímicos do óleo de bacuri (platonia insignis) em camundongos machos

Demetra (Rio J.); 18 (), 2023
Introdução: A utilização das plantas medicinais como fonte de pr odutos terapêuticos acompanha a história da humanidade. A Platoniainsignis é uma espécie frutífera nativa da Amazônia oriental, popularmente conhecida como bacuri. O óleo extraído das sementes do bacuri proporciona uma composiç...

Bone density and implant stability with advanced platelet-rich fibrin in immediately loaded- implant assisted mandibular overdentures

Braz. dent. sci; 26 (4), 2023
ABSTRACT Objective: The aim of this study is to determine the effect of Advanced Platelet-Rich Fibrin on bone density and implant stability in immediately loaded- implant-assisted mandibular overdentures (Split-mouth study). Material and Methods: Ten completely edentulous patients received t...

Influence of two natural cross-linkers on microtensile bond strength durability – An in vitro study

Braz. dent. sci; 26 (4), 2023
Objective: to investigate the effect of two natural cross-linkers on microtensile bond strength (μTBS) and evaluate their influence on the durability of the resin dentin bonds. Material and Methods: the Moringa oleifera and Centella asiatica plant extracts were qualitatively tested with high-performance...

Influence of number and position of porcelain specimens in the furnace on flexural strength and translucency

Braz. j. oral sci; 22 (), 2023
The aim of this study was to investigate the influence of the quantity and positioning of feldspathic ceramic specimens inside the furnace on their flexural strength and translucency. The tested hypotheses were that the arrangement of specimens in the furnance would not influence 1) the translucency or 2...