Bonding to new CAD/CAM resin composites: influence of air abrasion and conditioning agents as pretreatment strategy

Reymus, Marcel; Roos, Małgorzata; Eichberger, Marlis; Edelhoff, Daniel; Hickel, Reinhard; Stawarczyk, Bogna

doi:10.1007/s00784-018-2461-7

Cited by 64 publications

(75 citation statements)

References 29 publications

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“…The rounded end was contacting the occlusal inclined planes of both buccal and lingual cusps beyond the margins restorations. [5,6] The result of the present study show that both tested material able to restore the tooth fracture resistance close to the control non restored tooth and this was in agreement with Reymus et al [8] . Resin composite has a lower elastic modulus so more load is absorbed within the composite restorations and it transmits less of the applied load to the underlying tooth structure.…”

Section: Discussionsupporting

confidence: 92%

Effect of Different Filler Loading on Fracture Resistance of CAD/CAM Resin Composite restoration in Premolar Teeth: An In vitro Study

Hafez

Amr

et al. 2019

Egyptian Dental Journal

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Objective: to assess the effect of different filler loading on the fracture resistance of CAD/ CAM composite inlays when restoring MOD cavity in premolar teeth. Materials and methods: A two type of CAD/CAM resin composite block with different amount of filler loading were used in this study as the follow: Grandio Bloc with high filler loading (HFL) about 86% filler and BRILLIANT Crios with low filler loading (LFL) about 70% filler. A 40 maxillary premolar were divided equally into four main groups (10 teeth each); a positive control group of unprepared teeth and a negative control group with prepared and unrestored MOD cavity. While the two other restored groups in which teeth with prepared MOD cavities were restored either with the high filler loading Grandio Bloc CAD/CAM resin composite inlay or low filler loading BRILLIANT CAD/CAM resin composite blocks. A standardized MOD cavity were prepared in premolar teeth using the inlay preparation kit. working and master models were fabricated. A new restoration was created in the Cerec in-lab software version. The restoration were processed and cemented in place using Dual-link universal Resin cement. All specimen groups (positive control, negative control and restored groups) were tested for fracture resistance using universal testing machine. Fractured teeth were examined with USB digital microscope at 25X magnification. Twoway ANOVA (Analysis of Variance) was used to compare between groups. Tukey's post-hoc test was used for pair-wise comparison between the mean when ANOVA value were significant. The significance level was set at P≤0.005. Results: There was no statistical significant difference between the intact teeth group and HFL GRANDIO inlays and LFL BRIILIANT CRIOS. However there were statistically significant between prepared but not filled teeth groups and all other groups. The HFL GRANDIO inlays restored teeth group recorded high mean value than LFL BRIILIANT CRIOS but without statistically significant difference between them. A mixed type of failure was detected; cohesive failure either within tooth and restoration and adhesive failure along cement line.

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Section: Discussionsupporting

confidence: 92%

Effect of Different Filler Loading on Fracture Resistance of CAD/CAM Resin Composite restoration in Premolar Teeth: An In vitro Study

Hafez

Amr

et al. 2019

Egyptian Dental Journal

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“…The composition of the used core build-up material contains a lower amount of silicates, which might result in fewer bindings of a silane to the bonding surface [47,48]. A similar effect was found in a recent study investigating resin bonding techniques to CAD/CAM resin composites [49].…”

Section: Discussionsupporting

confidence: 66%

Cleaning and Conditioning of Contaminated Core Build-Up Material before Adhesive Bonding

et al. 2020

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The objective of this study was to evaluate the effects of different cleaning and conditioning procedures after contamination on the tensile bond strength (TBS) of a luting resin to a core build-up composite resin. Specimens (n = 384) made of a core build-up material were stored for 3 weeks in 37 °C water. Half of the specimens were contaminated with saliva and a disclosing silicone and then cleaned either using phosphoric acid, a pumice suspension, air-abrasion with alumina or polishing powder. Surface conditioning was performed by either using a dentin adhesive, a silane containing primer or a composite resin primer, which resulted in 24 unique combinations of 16 specimens per group. Before measuring TBS, half of the specimens of each group were stored in 37 °C water for 3d or were artificially aged for 150 days. Results show that cleaning with pumice or air-abrasion are superior methods compared to using a polishing powder or phosphoric acid. Silane is an inferior conditioning agent compared to composite or dentin primers. Ideally, after contamination, bonding surfaces should be cleaned with a pumice suspension and conditioned with a dentin adhesive. Those surfaces could also be cleaned and conditioned with air-abrasion with alumina particles and a composite resin primer.

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“…In this study, no pretest failures were experienced during thermoycyling. Nevertheless, considering the hazardous compounds, present in H and concerns on clinical applications of such agents chairside [36], the A conditioning method appears to offset the variations in substrate characteristics [3,33,[36][37][38]. In addition, moderate roughening with 30 µm silica particles apparently delivers better adhesion as supposed to 110 µm Al2O3 for conditioning organic and inorganic materials [39,40] where also the latter yields to more frequent adhesive failures [41].…”

Section: Resultsmentioning

confidence: 99%

Adhesion of resin cement to contemporary hybrid ceramic and polymeric CAD/CAM materials: effect of conditioning methods and ageing

Helbling

Özcan

2019

Journal of Adhesion Science and Technology

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This study assessed the effect of different surface conditioning methods and ageing protocols on adhesion of resin cement to hybrid ceramic and polymeric CAD/CAM materials. CAD/CAM materials (n = 360, n = 30 per group), namely (a) Lithium disilicate (IPS e.max CAD-LIS), (b) Zirconia (IPS e.max ZirCAD-ZIR), (c) Polymer (Lava Ultimate-LAV), (d) Polymer infiltrated ceramic network (Enamic-ENA), (e) Polymer infiltrated ceramic (Experimental-1-CS1), (f) Polymer infiltrated ceramic (Experimental-2-CS2), (g) Lithium disilicate reinforced alumina (n!ce-NIC) were cut into slices (3 × 6 × 8 mm3) and conditioned: (a) Method 1: 5% hydrofluoric acid etching (H)+silane and (b) Method 2: Silica coating (CoJet (A)+silane). Group LIS was conditioned with only Method 1 and Group ZIR only with Method 2 (control). Resin cement (Variolink Esthetic II) was bonded onto the conditioned specimens and photopolymerized. One-half of the specimens was subjected to ageing (thermocycling 5-55°, 5000 cycles) and the other half was stored in distilled water (37°C, 24 h). The resin-substrate interface was loaded under shear forces in a Universal Testing Machine (1 mm/min). Data (MPa) were analyzed using two-way ANOVA and Tukey's tests (= 0.05). Substrate type, conditioning method and ageing had a significant effect on adhesion values (p < .05). In aged conditions, ENA-H, ENA-A, LAV-H, LAVA , CS2-A (15 ± 4-11.6 ± 5) showed no significant difference (p > .05), with the CS2-A (15 ± 4) showing the least reduction (5.5%) compared to all other groups (5.8-62.6%). CS1-A (100%) followed by ENA-H, ENA-A (93%), CS2-A (80%) presented the highest incidence of cohesive failures after ageing.

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Bonding to new CAD/CAM resin composites: influence of air abrasion and conditioning agents as pretreatment strategy

Abstract: For a reliable bond of CAD/CAM resin composites to the luting composite, air abrasion and a special pretreatment strategy are necessary in order to achieve promising long-term results.

Cited by 64 publications

References 29 publications

Effect of Different Filler Loading on Fracture Resistance of CAD/CAM Resin Composite restoration in Premolar Teeth: An In vitro Study

Effect of Different Filler Loading on Fracture Resistance of CAD/CAM Resin Composite restoration in Premolar Teeth: An In vitro Study

Cleaning and Conditioning of Contaminated Core Build-Up Material before Adhesive Bonding

Adhesion of resin cement to contemporary hybrid ceramic and polymeric CAD/CAM materials: effect of conditioning methods and ageing

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