Effect of Metalloproteinase Inhibitors on the Microtensile Bond Strength of Composite Resin to Er:YAG Laser-Irradiated Dentin

Correa, Beatriz Carlos; Galo, Rodrigo; Scatena, Camila; Borsatto, Maria Cristina; Spazzin, Aloísio Oro; Corona, Silmara Aparecida Milori; Galafassi, Daniel

doi:10.1590/0103-6440201600825

Cited by 4 publications

(3 citation statements)

References 24 publications

(27 reference statements)

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“…Briefly, cuts were made buccolingually with a stick to achieve a cross-sectional area of approximately 1.0 mm². The sticks were immersed in distilled water at 37 °C and were tested after 24 h. Tensile testing was performed with a universal testing machine (EMIC DL2000; São José Dos Pinhais, PR, Brazil) under tension at 0.5 mm/min until failure occurred (14). The bonded surface area was calculated by using a digital caliper (Mitutoyo, Tokyo, Japan).…”

Section: Microtensile Bond Strength Testmentioning

confidence: 99%

Microtensile Bond Strength and Microhardness of Composite Resin Restorations Using a Sonic-Resin Placement System

et al. 2017

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The aim of this study was to evaluate the efficacy of applying sonic energy on microtensile bond strength and microhardness after the restoration process. A total of 40 human third molars were extracted. Class II cavities were prepared and restored with composite SonicFill or Filtek Z350 XT with and without the application of sonic energy. After the teeth were stored in water for 24 h, the teeth were sectioned into sticks (1.0 mm 2 ) and subjected to tensile testing. For a depth Knoop hardness test, the samples were cut and indentations were made sequentially from the surface of the samples to the bottom of the samples in three intervals of 1 mm each. The samples were then subjected to a load of 50 g for 10 s. The results from the tensile (factors: placement system and composite) and hardness (factors: placement system, composite and depth) tests were subjected to the Kolmogorov-Smirnov normality test, followed by analysis of variance and Tukey's test (5% significance). For the placement system factor, higher bond strength was observed for the cavities that were restored with sonic energy (p < 0.001). For depth Knoop hardness, the hardness at 1 mm depth was significantly greater than that at 3 mm depth just for the restorations with Filtek Z350 XT composite without the application of sonic energy. Therefore, the use of sonic energy during the restorative process improved bonding, yet it did not markedly affect the depth hardness for both composites.

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Section: Microtensile Bond Strength Testmentioning

confidence: 99%

Microtensile Bond Strength and Microhardness of Composite Resin Restorations Using a Sonic-Resin Placement System

et al. 2017

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“…CHX effectively inhibits MMP‐2, MMP‐8, MMP‐9, and cysteine cathepsins (Correa et al, 2016). The concentration of CHX used for inhibition of MMPs in studies is usually 2% (Bitter et al, 2014; Correa et al, 2016; Wang et al, 2013). The effect of CHX on bond strength is still a matter of debate.…”

Section: Discussionmentioning

confidence: 99%

Effect of pretreatment with matrix metalloproteinase inhibitors on the durability of bond strength of fiber posts to radicular dentin

Ghazvehi

Saffarpour

Habibzadeh

2022

Clinical & Exp Dental Res

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Objectives Application of matrix metalloproteinases inhibitors has been suggested to improve the durability of resin–dentin bonding. The purpose of this study was to evaluate the effect of dimethyl sulfoxide (DMSO), carbodiimide (EDC), and chlorhexidine (CHX) treatment on the push‐out bond strength of fiber posts to radicular dentin. Materials and Methods 24 extracted premolars were assigned randomly to 4 groups after root canal treatment and post space preparation (n = 6). In the first, second, and third groups, radicular dentin was treated with 1 ml of 5% DMSO, 0.3 M EDC, and 2% CHX, respectively. The fourth group (control) received no treatment. The root canals were primed with ED primer II, and the fiber posts were cemented with Panavia F2.0. In each group, half of the specimens were subjected to the push‐out test and the other half to 3000 thermal cycles before testing. Data were analyzed using two‐way analysis of variance via SPSS version 20 (p < .05). Results Among the nonthermocycled specimens, the values of push‐out bond strength were observed in the control, EDC, CHX, and DMSO groups, in decreasing order. Among the thermocycled specimens, the values were observed in the control, EDC, DMSO, and CHX groups in decreasing order. Thermocycling had a significant adverse effect on the push‐out bond strength (p = .015), but the effect of material (p = .375), and the interaction effect of material and thermocycling (p = .998) were not significant. Conclusions Application of CHX, DMSO, and EDC had no significant effect on the bond strength of fiber posts to radicular dentin.

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“…A utilização dessa tecnologia para remoção de tecido dentário cariado (Cozean et al, 1997;Hibst, 1997;Aoki et al, 1998;Evans et al, 2000;Kato et al, 2003;Liu et al, 2006;Dommisch et al, 2008;Jacobson;Asgari, 2008;Kornblit et al, 2008;Krause et al, 2008;Tanboga et al, 2011;) tem levado a um aumento no número de pesquisas com a utilização do laser de Er:YAG (Armengol et al, 2000;Corona et al, 2001;Benjamin, 2002;Bohari et al, 2012;Zhang et al, 2013;Valério et al, 2015;Correa et. al, 2016;Polizeli et al, 2016;Galafassi et.…”

Section: Introdução E Justificativaunclassified

Remoção seletiva de lesões de cárie em molares decíduos utilizando laser de Er:YAG: avaliação clínica das restaurações e dos níveis de cortisol salivar

Polizeli¹

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Minimally invasive dentistry suggests that during the preparation of cavity preparations, lesser amount of healthy dental substrate associated with the use of adhesive materials is removed, with the purpose of offering less anxiety and greater patient comfort during dental treatment. This study aimed to evaluate the salivary cortisol levels of the child during the selective removal of cáries lesions using Er:YAG laser and later longitudinal analysis of the restorations performed. Children between 7 and 10 years of age were selected to present two lesions of active cáries in dentin located on the occlusal and proximal surfaces (class II) of decíduous molars. The teeth of each child were distributed in two groups randomly: 1) Er:YAG laser (250mJ / 4 Hz) and 2) Conventional method (low rotation). The dosage of the hormone cortisol was performed by means of immunoenzymatic analysis of the saliva in 2 moments: 7 days before the procedures and during the removal of the cáries lesions. Indirect pulp protection was performed using calcium hydroxide cement and glass ionomer cement in the deep wells and only glass ionomer cement in the medium wells. The wells were prepared and then restored using the Adper Single Bond 2 / Filtek Supreme (3M) restorative system. For clínical analysis of the restorations, three calibrated and experienced professionals used the modified US Public Health Service criteria and photographic examination. For the analysis of the réplica of the restoration the teeth were cast and cast with epoxy resin. The marginal adaptation was analyzed by SEM. Clínical and réplicate analyzes were performed in the 7 day, 6 and 12 month periods after the restoration. Data were analyzed by ANOVA and Tukey's test (α = 5%). Cortisol levels were higher during the selective removal of cáries, regardless of the method used (p> 0.05). After 12 months, there was no evidence of difference in retention, marginal adaptation, discoloration, axial contour and secondary cáries of restorations performed in wells prepared by both methods. SEM analysis revealed that the laser irradiated teeth presented 10% of the total length of the restoration. For teeth prepared by the conventional method, 20% of the slits were found in the cavosuperficial margin. The use of the Er:YAG laser did not increase the levels of salivary cortisol when compared to the conventional method and did not influence the clínical performance of class II restorations, being an alternative method for the removal of cáries lesions in children.

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Effect of Metalloproteinase Inhibitors on the Microtensile Bond Strength of Composite Resin to Er:YAG Laser-Irradiated Dentin

Cited by 4 publications

References 24 publications

Microtensile Bond Strength and Microhardness of Composite Resin Restorations Using a Sonic-Resin Placement System

Microtensile Bond Strength and Microhardness of Composite Resin Restorations Using a Sonic-Resin Placement System

Effect of pretreatment with matrix metalloproteinase inhibitors on the durability of bond strength of fiber posts to radicular dentin

Remoção seletiva de lesões de cárie em molares decíduos utilizando laser de Er:YAG: avaliação clínica das restaurações e dos níveis de cortisol salivar

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