Dentin Depth
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. In situ anticariogenic effect of conventional glass ionomer cement by dentrifice dependence / Efeito anticariogênico de cimento de ionômero de vidro convencional pela dependência de dentrifício: estudo "in situ"
The aim of this study was to assess in situ anticaries potential of conventional glass ionomer cement (GIC) to prevent enamel and dentine demineralization either alone or in combination with a fluoride (F) regimen. A randomized, blind, crossover design for caries induction was carried out in 2 phases of 14 days each. This study was a 2 x 2 cross-over factori
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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14. Evaluation of caries-affected dentin with optical coherence tomography
The purpose of this study was to evaluate the degree of demineralization of artificially induced caries-affected human dentin by an in vitro microbiological method. The occlusal surfaces of 6 human molar teeth were abraded until a flat surface was obtained, and the enamel was removed to expose the occlusal dentin surface. These teeth were sectioned in 12 hal
Brazilian Oral Research. Publicado em: 2011-10
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15. Shear bond strength of self-etch and total-etch bonding systems at different dentin depths
The purpose of this study was to evaluate the dentin shear bond strength of four adhesive systems (Adper Single Bond 2, Adper Prompt L-Pop, Magic Bond DE and Self Etch Bond) in regards to buccal and lingual surfaces and dentin depth. Forty extracted third molars had roots removed and crowns bisected in the mesiodistal direction. The buccal and lingual surfac
Brazilian Oral Research. Publicado em: 25/02/2011
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16. Avaliação do substrato dentinário irradiado com laser de Er:YAG : resistência de união, padrão de fratura e análise ultramorfológica / Evaluation of dentin irradiated with Er:YAG laser : bond strength, failure pattern and ultramorphology analysis
The Er:YAG laser has been widely used in Dentistry and because its ability to remove mineralized dental tissues, it is indicate to be used in Operative Dentistry. As the Er:YAG laser is recent, little is known about the consequences of dental tissues irradiation and their effects on adhesive restorative procedures. Thus, the objectives of this study were to
Publicado em: 2011
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17. Photodynamic therapy effect in carious bovine dentin : an in vitrostudy / Estudo da ação antimicrobiana da terapia fotodinamica sobre lesões de carie produzidas in vitro na dentina de dentes bovinos
Photodynamic therapy (PDT) is a technique that consists in the activation of certain photosensitizers by light in the presence of tissue oxygen, resulting in the production of reactive radicals capable of inducing cell death. In this context, this therapy may become a suitable approach to disinfect the dentin tissue during the caries treatment, and reduce th
Publicado em: 2010
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18. RESISTÊNCIA DE UNIÃO DE SISTEMAS ADESIVOS ATUAIS EM DENTINA SUBMETIDA A DIFERENTES TRATAMENTOS / BOND STRENGTH OF ADHESIVE SYSTEMS IN DENTIN SUBMITTED TO DIFFERENT TREATMENTS
Estudos têm demonstrado que a longevidade de restaurações adesivas é negativamente afetada pela degradação das fibras colágenas. O objetivo deste estudo foi avaliar o efeito de diferentes tratamentos na resistência de união de sistemas adesivos em diferentes regiões dentinárias. Quarenta dentes terceiros molares humanos hígidos foram alocados ran
Publicado em: 2010
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19. Sealing ability of castor oil polymer as a root-end filling material
OBJECTIVE: The purpose of this study was to evaluate the sealing ability of castor oil polymer (COP), mineral trioxide aggregate (MTA) and glass ionomer cement (GIC) as root-end filling materials. Forty-five single-rooted human teeth were cleaned and prepared using a step-back technique. The apical third of each root was resected perpendicularly to the long
Journal of Applied Oral Science. Publicado em: 2009-06
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20. Avaliação da dentina de dentes decíduos submetidos à técnica de remoção parcial de tecido cariado
The aim of this study was to evaluate remaining carious dentin microhardness from deciduous teeth submitted to Indirect Pulp Treatment (IPT) and restored with self etching primer and composite, associated or not with calcium hydroxide capping. Deciduous molars treated with IPT and restored with Clearfil SE Bond ¿ Kuraray, Japan (CSE) and composite Filtek-Z2
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
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21. Efeito da irradiação do laser diodo 980 nm na microdureza da dentina radicular tratada previamente com diferentes soluções irrigantes / Effect of irradiation with diode laser (980 nm) on microhardness of root dentin previously treated with different irrigating solutions
The purpose of the present study was to evaluate, in vitro, the effect of 980 nm diode laser irradiation, in potencies of 1.5 and 3.0 W and 100 Hz frequency, on microhardness of radicular dentine in different depths. Seventy two roots of human canines were instrumented and randomly distributed into 3 groups (n=24), according to the irrigating solution used i
Publicado em: 2009
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22. Adhesive cementation of zirconia posts to root dentin: evaluation of the mechanical cycling effect
This study evaluated the effect of mechanical cycling on the bond strength of zirconia posts to root dentin. Thirty single-rooted human teeth were transversally sectioned to a length of 16 mm. The canal preparation was performed with zirconia post system drills (CosmoPost, Ivoclar) to a depth of 12 mm. For post cementation, the canals were treated with total
Brazilian Oral Research. Publicado em: 2008-09
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23. Pulpal temperature increase with high-speed handpiece, Er:YAG laser and ultrasound tips
The aim of this study was to compare intrapulpal temperature increase produced by high-speed handpiece, Er:YAG laser and CVDentus ultrasound tips during cavity preparation. Thirty bovine mandibular incisors with an enamel/dentin thickness of 4 mm at buccal surface had their roots amputated and were allocated to the following groups (n=10): Group I- high-spee
Journal of Applied Oral Science. Publicado em: 2008-06
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24. Influência dos níveis de energia do laser Er:YAG na capacidade de ablação, microdureza e morfologia da dentina superficial e profunda / Influence of Er:YAG laser energy levels on ablation rate, microhardness and morphology of superficial and deep dentin
This study evaluated the ablation rate and the subsurface microhardness of superficial and deep dentin irradiated with different Er:YAG laser energy levels, and observed the micromorphological aspects of the lased substrates by means of Scanning Electron Microscopy (SEM). Seventy-two molar crowns were bisected, providing 144 specimens, which were randomly as
Publicado em: 2008