Shear bond strength of bulk-fill and nano-restorative materials to dentin

Çolak, Hakan; Ercan, Ertuğrul; Hamidi, Mehmet Mustafa

doi:10.4103/1305-7456.175697

Cited by 27 publications

(27 citation statements)

References 25 publications

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“…However, it is also characterized by the risk of complications due to incomplete polymerization of the material and the occurrence of polymerization shrinkage. [1] Nanotechnology is the science dealing with the production of substances on a nanometric scale with the particle size ranging from 0.1 nm to 100 nm . Hence, the properties and the structure of materials can be altered at the nanometer level to bring about dramatic improvements.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Evaluation of Shear Bond Strength of a Bioactive Composite and Nano-Composite: An in Vitro Study

Halim

2018

Egyptian Dental Journal

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Objectives:The aim of this study was to determine and compare the shear bond strength of activa bioactive restorative with and without adhesive and nano-composite. Materials and Methods:Sixty freshly extracted human premolars were used. The teeth were mounted vertically in a self-cure acrylic cylinder. A high-speed fine diamond disk with copious water spray was used to obtain a flat dentin of the labial surface. One clinician prepared all the teeth.The teeth were divided into three groups twenty teeth each, n=20 Group I : The flat dentin surfaces were acid-etched for 15 sec with 37% phosphoric acid, it washed and dry then application of bioactive composite into a plastic ring measuring 3mm width and 2 mm depth. Each specimen was light cured for 40 sec by LED light cure unit. Group II: The flat dentin surfaces were acid-etched and then two coats of bonding agent was applied over each specimen and light cured for 20 sec. then application of bioactive composite. Group III (Control): The flat dentin surfaces were acid-etched and application of bonding agent then nano-composite applicated into a plastic ring measuring 3mm width and 2 mm depth. Each specimen was light cured for 40 sec by LED light cure unit. All of the specimens were tested for shear bond strength and all of the data were analyzed by One way analysis of variance (ANOVA) and Tukey's post hoc test. Results:Results showed that the highest mean value was detected in Nanocomposite, followed by bioactive composite with adhesive, the mean shear bond strength of Nanocomposite and composite with adhesive was significantly greater than bioactive composite without adhesive (p<0.0001). Conclusions:Nanocomposite showed higher shear bond strength followed by bioactive composite with adhesive, while bioactive composite without adhesive showed the lowest shear bond strength value. (1654)Sahar Abd El Halim E.D.

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Section: Introductionmentioning

confidence: 99%

“…Fig.1)TABLE(1) The commercial names, compositions and manufacturers of the materials used reactive glass particles that mimic physical and chemical properties of natural teeth., shock absorbing ionic resin component containing acidic monomer with antimicrobial properties. no Bisphenol A, No BisGMA, no BPA derivatives.…”

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confidence: 99%

Comparative Evaluation of Shear Bond Strength of a Bioactive Composite and Nano-Composite: An in Vitro Study

Halim

2018

Egyptian Dental Journal

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“…This finding is aligned with the outcomes of our study. The authors of that study also concluded that this finding could be of potential benefit to the clinicians because restoring with bulk fill resin composites are simpler than conventional composites and can be applied more efficiently [34].…”

Section: Discussionmentioning

confidence: 85%

Effect of Laser Conditioning and Different Adhesive Strategies on Bond Strength of a Bulk Fill and a Microhybrid Resin Composite

Özduman¹,

Tuncer²,

Çelik³

et al. 2018

IJDSR

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To evaluate the effect of laser conditioning and adhesive strategies on bond strength of a bulk fill and a microhybrid resin composite. Methods: 96 human posterior teeth's buccal and lingual surfaces were ground flat to expose dentin surfaces with standard smear layer (N=192). The specimens were divided into 16 experimental groups according to (1) Laser-conditioning (Laser-etched group/control group); (2) Adhesive strategies (etch&rinse, Adper Single Bond2(SB2), two step self-etch ClearfilSE Bond(CSE), multi-mode adhesive All-Bond Universal with self-etching technique(ABU-SE), or etch&rinse technique(ABU-ER); (3) Restorative materials (Z250/SDR). All the restorative applications were applied according to the manufacturer's directions. The specimens were stored in 100% humidity for 24 hours. The specimens were placed on a shear bond test machine at a crosshead speed of 1 mm/min. The values were recorded at the time of failure of composite resins. The bond strength values for shear forces were reported in MPa and derived by dividing the imposed force at the time of fracture by the bonded area. The failed samples were examined under a streomicroscope at X20 magnification to determine the mode of failure. The data were statistically analyzed with three-way ANOVA and multiple comparisons were made by Bon Ferroni test at 5% significance level (p<0.05). Results: SDR and Z250 yielded statistically significant difference when bonded with ABU-ER without laser conditioning (p=0.008). The predominant mode of failure was mixed type. Conclusion: Laser conditioning did not affect shear bond strength values of a bulk fill and a microhybrid resin composites regardless of adhesive system.

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“…The XTI composite showed higher bond strength values when compared to the XTB and bulk fill composites when considered pre-test failures (p<0.001) ( Table 2). Likewise, Colak et al (19) found higher bond strength in a conventional composite that was incrementally inserted than in bulk fill composites TBF and SF. Still, the bulk fill composites presented higher bond strength than the XTB, corroborating with the literature (6,17).…”

Section: Discussionmentioning

confidence: 93%

Polymerization Shrinkage of Bulk Fill Composites and its Correlation with Bond Strength

et al. 2018

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The present study aimed to evaluates polymerization shrinkage (PS) using microcomputed tomography (μCT) and microtensile bond strength (μTBS) in bulk fill composites (BFC) and conventional class I restorations as well as the correlation between these factors. Class I cavities (4 x 5 x 4 mm), factor-C = 4.2, were created in third molars that were free of caries, which were randomly divided in 4 groups (n = 6): XTI (Filtek Supreme XTE: incremental technique); XTB (Filtek Supreme XTE: single fill technique); TBF (Tetric Bulk Fill); and SF (SonicFill). Each tooth was scanned twice in μCT: T0 was after filling the cavity with composite, and T1 was after light curing. The data were analyzed by subtracting the composite volume for each time (T1 - T0). After 1 week, the teeth were sectioned crosswise in the buccolingual and mesiodistal directions to obtain specimens with approximately 1 mm² thickness and fixed in a universal testing machine to perform μTBS. The Kruskal-Wallis and Dunn tests showed a statistically significant difference for shrinkage in µCT among the XTI and XTB and between the SF and XTB. Regarding the μTBS, all the groups differed from XTB. Bulk fill composites type presents a PS similar to that of the conventional nanoparticulate composite inserted using the incremental technique, but the bond strength was higher for the incremental group, which presented a lower number of pre-test failures when compared to BFC. No correlation was observed between the polymerization shrinkage and bond strength in the studied composites.

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Shear bond strength of bulk-fill and nano-restorative materials to dentin

Cited by 27 publications

References 25 publications

Comparative Evaluation of Shear Bond Strength of a Bioactive Composite and Nano-Composite: An in Vitro Study

Comparative Evaluation of Shear Bond Strength of a Bioactive Composite and Nano-Composite: An in Vitro Study

Effect of Laser Conditioning and Different Adhesive Strategies on Bond Strength of a Bulk Fill and a Microhybrid Resin Composite

Polymerization Shrinkage of Bulk Fill Composites and its Correlation with Bond Strength

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