Results: 594

Influencia del termociclado sobre la estabilidad del color de dos resinas compuestas
Influence of thermocycling on the color stability of two composite resins

Objetivo: Cuando las resinas compuestas son expuestas a procesos de envejecimiento naturales en boca, como es el ciclaje térmico, pueden sufrir un deterioro en sus propiedades ópticas. El objetivo de este estudio fue evaluar la influencia del envejecimiento térmico sobre la estabili...

Evaluación de la filtración apical al utilizar dos selladores biocerámicos
Evaluation of apical leakage when using two bioceramic sealers

Objetivo: Evaluar con técnica de diafanización el gra-do de filtración apical al utilizar dos selladores bio-cerámicos y la técnica de cono único con taper ex vivo. Materiales y métodos: Se utilizaron 60 premola-res inferiores humanos uniradiculares extraídos. La instrumentación se realizó con ...

Cytotoxic effects of bioceramic materials on stem cells from human exfoliated deciduous teeth (SHED)

Braz. dent. sci; 27 (2), 2024
Objective: This study aimed to evaluate stem cell from human deciduous teeth (SHED) viability after exposure to different bioceramic materials. Material and Methods: Discs were constructed to obtain the material extracts according to the following groups: G1 - Bio-C Repair, G2 - MTA Repair HP, G3 - Thera...

Estudio de biocompatibilidad de matrices poliméricas combinadas, responsivas al pH, con aplicación en Ingeniería de Tejido Óseo
Biocompatibility study of combined pH-responsive polymeric matrices with application in Bone Tissue Engineering

Actual. osteol; 19 (2), 2023
El presente trabajo muestra la obtención de un material a partir de un polímero sintético (TerP) y otro natural, mediante entrecruzamiento físico y su caracterización fisicoquímica y biológica, con el fin de emplearlos para regeneración de tejido óseo. Las membranas fueron obtenidas por l...

Root filling quality and bond strength of endodontic sealers to human and bovine dentin

RFO UPF; 28 (1), 2023
Objetivo: Este estudo teve como objetivo comparar a qualidade da obturação e a resistência de união de dois cimentos endodônticos, AH Plus e Bio-C Sealer, em dentes humanos e bovinos. Métodos: Os canais radiculares de 60 dentes unirradiculares [30 humanos (H) e 30 bovinos (B)] foram preparados e ob...

Efeito de diferentes irrigantes finais na resistência união de um cimento de silicato de cálcio: estudo in vitro

RFO UPF; 28 (1), 2023
Objetivo: Este estudo teve como objetivo avaliar a resistência de união do cimento Biodentine® à dentina radicular após a utilização de diferentes irrigantes finais. Método: Vinte dentes humanos extraídos tiveram seu terço médio radicular cortado em fatias que foram submersas em hipoclorito de...

Comparison of two obturation techniques on adhesion and proliferation of human periodontal ligament fibroblasts

Odovtos (En linea); 25 (1), 2023
The present study aimed to compare the adhesion and proliferation of human periodontal ligament fibroblasts (hPDL) in transverse sections of the teeth sealed with two different obturation techniques, BioRoot RCS/hydraulic obturation (HO) and AH-Plus/continuous-wave condensation (CWC). The techniques were...

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...

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...

Comparative of flexural strength, hardness, and fluoride release of two bioactive restorative materials with RMGI and composite resin

Braz. j. oral sci; 21 (), 2022
Aim: This study was fulfilled to evaluate the flexural strength, micro-hardness, and release of two fluoride ions of bioactive restorative materials (Cention N and Activa Bioactive), a resin modified glass ionomer (Fuji II LC), and a resin composite (Filtek z250). Methods: Forty samples from four restora...