Influence of different surface treatments and universal adhesives on the repair of CAD-CAM composite resins: An in vitro study

Şişmanoğlu, Soner; Yıldırım-Bilmez, Zuhal; Erten-Taysi, Aysegul; Ercal, Pınar

doi:10.1016/j.prosdent.2020.02.029

Cited by 30 publications

(44 citation statements)

References 34 publications

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“…According to the manufacturer's instructions, air‐borne particle abrasion is recommended for resin nanoceramic blocks, whereas hydrofluoric acid etching is recommended for PICN and feldspathic ceramic blocks. Previous studies also confirm these recommendations 20,21 . In the present study, no statistically significant difference was observed between the repair bond strengths of the tested CAD/CAM blocks ( p > 0.05), as shown in Figure 5.…”

Section: Resultssupporting

confidence: 86%

“…Studies suggest that intraoral repair applications are both cost‐effective and prolong the life of the fractured restoration 18,19 . Various techniques, such as hydrofluoric acid etching 20,21 and aluminum‐oxide air abrasion 20‐22 , can be used in intraoral repair processes. There are a number of polymer‐based CAD/CAM block materials available on the dental market.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties and repair bond strength of polymer‐based CAD/CAM restorative materials

Şişmanoğlu

Gürcan

Yıldırım-Bilmez

et al. 2020

Int J Applied Ceramic Tech

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Information on the mechanical properties and repairability of computer‐aided design/computer‐aided manufacturing (CAD/CAM) blocks is scarce. Five CAD/CAM blocks with similar indications were evaluated, including four resin nanoceramics, one polymer‐infiltrated ceramic network (PICN), and one feldspathic ceramic. CAD/CAM blocks were sectioned into 4 mm × 1.2 mm × 13 mm bars for flexural strength (FS), and 4 mm thick blocks were prepared for elastic modulus (EM), nanohardness (NH), and microshear bond strength (µSBS) testing. FS of the CAD/CAM blocks was determined using a three‐point bending test, whereas EM and NH values were measured using a nanoindenter. The reparability of the tested block materials was determined by the µSBS test. One‐way ANOVA was conducted for FS, EM, NH, and µSBS followed by Tukey's pairwise comparison (α < 0.05). FS ranged from 115 to 207 MPa, EM from 8.21 to 44 GPa, NH from 0.76 to 7.24, and µSBS from 24.9 to 30.6 MPa. The findings of the present study revealed that resin nanoceramic blocks exhibited higher FS values than PICN and feldspathic ceramic, and they have acceptable mechanical properties for the fabrication of single‐unit restorations according to the ISO 6872:2008. Furthermore, all CAD/CAM blocks tested can be successfully repaired regarding their recommended repair protocol.

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Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Mechanical properties and repair bond strength of polymer‐based CAD/CAM restorative materials

Şişmanoğlu

Gürcan

Yıldırım-Bilmez

et al. 2020

Int J Applied Ceramic Tech

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“…The MDP is a bifunctional monomer capable of bonding to both oxides and methacrylate monomers on the surface of the PICN. 19 The increased bond strength values for Single Bond Universal was reported in the previous studies and was attributed to the combined effects of MDP monomer, silane, and Vitrebond copolymer. 19,28,31 The first step of the ES protocol is the HF etching which reacts with silicon dioxide, dissolves the glassy phase of the PICN surface, and results in an increased surface energy of the ceramic.…”

Section: Discussionmentioning

confidence: 54%

“…This finding is consistent with the results of some studies; 7,9 however, contradicts others suggesting similar bond strengths for HF etching and tribochemical silica coating. 12,19 Etching with HF causes dissolution of silica in the glassy phase of the PICN material, producing a porous micro-retentive surface with high energy. 25,26 Tribochemical air abrasion with 30μm silica-coated alumina roughens the surface and enhances silica content on the surface, producing silicatization.…”

Section: Discussionmentioning

confidence: 99%

“…7,17 Those systems differ in terms of the surface treatments and adhesive agent used which improve the bond strength between the restorative material and composite resin for repair. 2,9 Surface treatments include grinding with a diamond bur 7 , etching with hydrofluoric or phosphoric acid in different concentrations 18,19 , and air-abrasion with alumina particles or tribochemical silica coating. 9,12 The success and maintenance of the repaired restoration may vary according to the repair system or protocol used.…”

Section: Introductionmentioning

confidence: 99%

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Farklı onarım protokollerinin ve yapay yaşlandırmanın kompozitin polimer-infiltre seramik ağ materyaline bağlanma kuvvetine etkisi

Oğuz¹,

Çiçekci²

2021

Cumhuriyet Dental Journal

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Objectives:The aim of this in vitro study was to evaluate the effects of different repair protocols and artificial aging on the shear bond strength (SBS) of a composite to polymer-infiltrated ceramic network (PICN). Materials and methods: A total of 120 PICN (Vita Enamic, Vita Zahnfabrik) specimens were prepared, artificially aged (5000 thermal cycles between 5°C-55°C), and assigned to 5 repair protocols: (1)TS: tribochemical silica coating (Rocatec Soft; 3M ESPE)+Single Bond Universal (SBU; 3M ESPE) (2)ES: etching with hydrofluoric acid (HF; Bisco)+SBU (3)EU:HF+Ultradent Porcelain Repair (UPRS; Ultradent Products Inc.) (4)GU: grinding with diamond bur (G)+UPRS (5)GI:G+Ivoclar Vivadent Ceramic Repair (Ivoclar Vivadent). All specimens received a composite resin cylinder (Clearfil Majesty Esthetic,Kuraray) formed with a silicone mold (4mm diameter, 2mm height) to simulate repair. Then, 2 subgroups were composed according to the artificial aging procedures as baseline and aging (5000 thermal cycles between 5°C-55°C) (n=12). The SBS tests were performed by using a universal testing machine. Failure types were classified as cohesive failure in PICN, cohesive failure in composite, adhesive,and mixed. The SBS data were analyzed with 1-way ANOVA, factorial ANOVA, LSD, and Duncan tests (α=0.05). Failure modes were calculated as a percentage for each group.Results:The baseline results showed that the mean SBS values for ES and GU were higher than TS (p<0.05). Considering artificially aged groups, ES showed higher SBS than EU and GU (p<0.05). SBS values for ES, EU, and GU groups decreased significantly after the artificial aging procedure compared to baseline (p<0.05). At baseline, the dominant failure mode was cohesive in PICN for all groups and no adhesive failures were observed for ES and GU groups. However, after aging, the only group that did not show adhesive failure was ES. Conclusions:Considering the time-efficiency and effectiveness, etching with HF followed by Single Bond Universal application can be recommended as the intraoral repair protocol for PICN.

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Influence of mechanical and chemical pre-treatments on the repair of a hybrid ceramic

Jung

Rüttermann

2022

Dental Materials

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Influence of different surface treatments and universal adhesives on the repair of CAD-CAM composite resins: An in vitro study

Cited by 30 publications

References 34 publications

Mechanical properties and repair bond strength of polymer‐based CAD/CAM restorative materials

Mechanical properties and repair bond strength of polymer‐based CAD/CAM restorative materials

Farklı onarım protokollerinin ve yapay yaşlandırmanın kompozitin polimer-infiltre seramik ağ materyaline bağlanma kuvvetine etkisi

Influence of mechanical and chemical pre-treatments on the repair of a hybrid ceramic

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