Effect of surface treatments and cyclic loading on the bond strength of acrylic resin denture teeth with autopolymerized repair acrylic resin

These days, new prosthodontic materials are appearing with the development of digitalization. Among these, the use of polyetheretherketone (PEEK) as the clasp of removable partial dentures has been proposed. The adhesive strength between the PEEK and acrylic resin influences the probability of denture fracture. To investigate the effect of PEEK surface treatments on the shear bond strength to acrylic resin, five surface treatment conditions of PEEK were analyzed: 1. no treatment; 2. ceramic primer application; 3. Al2O3 sandblasting; 4. Rocatec; and 5. Rocatec with ceramic primer application, comparing with a metal primer-treated Co-Cr alloy. Two kinds of autopolymerizing resin (Unifast II and Palapress Vario) were used as bonding materials. The specimens were evaluated to determine the bond strength. Rocatec treatment with ceramic primer application yielded the highest bond strengths (12.71 MPa and 15.32 MPa, respectively, for Unifast II and Palapress Vario). When compared to a metal primer-treated Co-Cr alloy, the bond strength of PEEK to Unifast II was similar, whereas it was about 60% of that to Palapress Vario. Rocatec treatment, combined with ceramic primer, showed the highest bond strength of PEEK to acrylic resin. Treatment of PEEK will enable its use as the clasp of removable dentures and the fixation of PEEK prostheses.

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Effect of surface treatments on push-out bond strength of calcium silicate-based cements to fiber posts

BMC Oral Health ◽

10.1186/s12903-021-01518-y ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Amr M. Elnaghy ◽

Ayman Mandorah ◽

Ali H. Hassan ◽

Alaa Elshazli ◽

Shaymaa Elsaka

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Glass Fiber ◽

Calcium Silicate ◽

Surface Treatments ◽

The Other ◽

Fiber Posts ◽

Glass Fiber Posts ◽

Push Out ◽

Effect Of Surface

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

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Effect of surface treatments of fiber posts on bond strength to composite resin cores

The Journal of Korean Academy of Conservative Dentistry ◽

10.5395/jkacd.2010.35.3.173 ◽

2010 ◽

Vol 35 (3) ◽

pp. 173 ◽

Cited By ~ 3

Author(s):

Hye-Jo Keum ◽

Hyun-Mi Yoo

Keyword(s):

Bond Strength ◽

Composite Resin ◽

Surface Treatments ◽

Fiber Posts ◽

Resin Cores ◽

Effect Of Surface

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Effect of surface treatments of laboratory-fabricated composites on the microtensile bond strength to a luting resin cement

Journal of Applied Oral Science ◽

10.1590/s1678-77572004000100009 ◽

2004 ◽

Vol 12 (1) ◽

pp. 45-50 ◽

Cited By ~ 29

Author(s):

Carlos José Soares ◽

Marcelo Giannini ◽

Marcelo Tavares de Oliveira ◽

Luis Alexandre Maffei Sartini Paulillo ◽

Luis Roberto Marcondes Martins

Keyword(s):

Bond Strength ◽

Hydrofluoric Acid ◽

Composite Resin ◽

Surface Treatments ◽

Resin Cement ◽

Single Bond ◽

Microtensile Bond Strength ◽

Bonded Interface ◽

Luting Composite ◽

Effect Of Surface

The purpose of this study was to evaluate the influence of different surface treatments on composite resin on the microtensile bond strength to a luting resin cement. Two laboratory composites for indirect restorations, Solidex and Targis, and a conventional composite, Filtek Z250, were tested. Forty-eight composite resin blocks (5.0 x 5.0 x 5.0mm) were incrementally manufactured, which were randomly divided into six groups, according to the surface treatments: 1- control, 600-grit SiC paper (C); 2- silane priming (SI); 3- sandblasting with 50 mm Al2O3 for 10s (SA); 4- etching with 10% hydrofluoric acid for 60 s (HF); 5- HF + SI; 6 - SA + SI. Composite blocks submitted to similar surface treatments were bonded together with the resin adhesive Single Bond and Rely X luting composite. A 500-g load was applied for 5 minutes and the samples were light-cured for 40s. The bonded blocks were serially sectioned into 3 slabs with 0.9mm of thickness perpendicularly to the bonded interface (n = 12). Slabs were trimmed to a dumbbell shape and tested in tension at 0.5mm/min. For all composites tested, the application of a silane primer after sandblasting provided the highest bond strength means.

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