Microtensile Bond Strength of a Resin Cement to Glass Infiltrated Zirconia-reinforced Ceramic: The Effect of Surface Conditioning. (original) (raw)
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Effect of surface pre-treatments on the zirconia ceramic–resin cement microtensile bond strength
Dental Materials, 2011
Surface treatment Bond strength Resin cement a b s t r a c t Objective. To evaluate the influence of different surface treatments on the microtensile bond strength of resin cement to zirconia ceramic. Materials and methods. Twelve cylinder-shaped (∅ 12 × 5.25 mm high) blocks of a commercial zirconium-oxide ceramic (Cercon ® Zirconia, DENTSPLY) were randomly divided into 4 groups (n = 3), based on the surface treatment to be performed: (1) airborne particle abrasion with 125 m Al 2 O 3 particles (S); (2) selective infiltration etching (SIE); (3) experimental hot etching solution applied for 30 min (ST) and (4) no treatment (C). Paradigm MZ100 blocks (3M ESPE) were cut into twelve cylinders of 4 mm in thickness. Composite cylinders were bonded to conditioned ceramics using a resin cement (Calibra ® , DENTSPLY), in combination with the proprietary adhesive system. After 24 h bonded specimens were cut into microtensile sticks and loaded in tension until failure. Bond strength data were analyzed with Kruskall-Wallis and Dunn's Multiple Range test for multiple comparisons (p < 0.05). Failure mode distribution was recorded and the interfacial morphology of debonded specimens was analyzed using a scanning electron microscope (SEM).
IASET, 2020
This study was conducted with the objective of evaluating the effect of three surface conditioning methods on bond strength of resin cement to zirconia reinforced ceramic. The literature was electronically searched in PUBMED, MEDLINE, EMBASE, and SCOPUS to select relevant articles that evaluated the bond strength between zirconia and composite cements. A manual search was performed by scanning the reference lists of included studies. All articles were published online before March 2020, and in English. From electronic database and manual searches, the key word phrases used were zirconia and its bonding with resin cements 439 and surface treatment of zirconia 385 studies were identified 385. N articles with test results met the inclusion criteria and were selected on the resin bond to silica-based ceramics, on the bond to aluminum-oxide ceramics, and 3 on the bond to zirconium-oxide ceramics. Additional references were included to accompany statements of facts. Comparison of the bond strength of the three groups (I, II, III) by one-way ANOVA was done. It was seen that there was a statistically significant difference within the groups (P<0.05) with Group II, that is laboratory silica coating showing the highest mean bond strength (28.23 + 1.53 MPa), followed by Group I that is laboratory grit blasting (20.2 + 2.33 MPa). Group III that is hydrofluoric acid-etching showed the least mean bond strength (10.41 +1.46 MPa).The effect of three surface conditioning methods on the micro tensile bond strength of resin cement to a glass infiltrated zirconia reinforced alumina-based core ceramic was variable. Roughening the ceramic surfaces with air particle abrasion with 110µm Al 2 O 3 followed by coating of silica particle with size of 110 µm SiO 2 and silanization prior to cementation provided higher bond strength when compared with air particle abrasion with 110µm Al 2 O 3 and salinization. Hydrofluoric acid gel used for conditioning the reinforced ceramics showed the least mean shear bond strength.
Effect of Surface Pre-treatments on Bonding Performance of Zirconia Ceramic with Resin Cements
Egyptian Dental Journal
Purpose: To establish an effective bonding for zirconia, the aim of this study was to evaluate the influence of airborne particle abrasion, Piranha acid etching and hot acid etching pre-treatments on bond strength of zirconia with self-adhesive resin cements (Panavia SA, TheraCem) and conventional adhesive resin cement (Panavia F2.0). Also, the effect of Silano-Pen treatment on the bond strength of zirconia to resin cements was evaluated. Materials and Methods: Eighteen zirconia blocks were cut, sintered and divided into three groups (n=6): airborne particle abrasion, Piranha acid etching (3H 2 SO 4 :1H 2 O 2), and hot acid etching (1HNO 3 :1HF). From each group, the bonding surfaces of three zirconia blocks were treated with Silano-Pen. Each zirconia block was bonded to its corresponding composite block utilizing either Panavia SA, TheraCem or Panavia F2.0. Each ceramic ̸ resin ̸ composite assembly was sectioned perpendicular to the bonding interface to obtain microbars of 1 mm 2 thickness. A total of 180 microbars were subjected to 10000 thermal cycles between 5°C and 55°C with dowel time of 30 seconds. Each microbar was subjected to tensile force until de-bonding. The data was statistically analyzed. Results: The hot acid showed the highest µTBS (21.96±5.86 MPa) followed by airborne particle abrasion (16.40±6.23 MPa) and the lowest was Piranha (15.04±7.12 MPa). With Panavia SA, there was significant difference (p=.035) between µTBS with Silano-Pen in airborne particle abrasion and Piranha groups, also there was significant difference (p=.004) between Piranha and hot acid groups. With TheraCem, there was significant difference (p=.008) between µTBS with Silano-Pen in airborne particle abrasion and Piranha groups, also there was significant difference (p=.003) between airborne particle abrasion and hot acid groups. The interaction between cement and Silano-Pen was insignificant (p=.067). Conclusions: Pre-treatment method and type of adhesive resin cement influences the effectiveness of bonding of zirconia. The hot acid etching recorded the highest bond strength, whereas the lowest was recorded with Piranha etching. Silano-Pen treatment after hot acid etching improved the bonding of zirconia to adhesive resin cement. The self-adhesive MDP-containing resin cement (Panavia SA) enhanced the effectiveness of the bond strength with zirconia.
Efficacy of Different Surface Treatments on the Bond Strength of Resin cement to Zirconia Ceramic
Al-Azhar Dental Journal for Girls, 2020
Purpose: The plan for this study was to anatomise the effect of alternative surface treatments to enhance bonding to zirconia. Materials and Methods: forty discs of zirconia (Prettau,zircon zhan, Italy) were prepared using Isomet 4000 precision Saw then discs were divided into 5 groups. Group 1, control; Group2, zirconia discs were treated with50-mm Al 2 O 3 particles; Group 3, zirconia discs were received hand grinding; Group 4, zirconia discs were treated by a CO2 laser and Group 5, zirconia discs were treated using ERYAG laser. Composite resin discs were constructed and cemented to zirconia samples with panavia cement. For the bond strength test, a universal testing machine was used. Results: the highest shear bond strength was recorded for (Hand grinding) group (2) while the lowest mean value was recorded for control group (1). Conclusions: Treatment of Zirconia Surfaces with hand grinding or sandblasting increased shear bond strength. Treatment of Zirconia with CO2 and ERYAG lasers increased shear bond strength of zirconia, with the CO2 laser being higher than ERYAG laser.
Dental Materials, 2009
d e n t a l m a t e r i a l s 2 5 ( 2 0 0 9 ) 172-179 a v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . i n t l . e l s e v i e r h e a l t h . c o m / j o u r n a l s / d e m a a b s t r a c t Objectives. To evaluate the effect of surface conditioning on the microtensile bond strength of zirconium-oxide ceramic to dual-cured resin cements. Methods. Eighteen cylinder-shaped zirconium-oxide ceramic blocks (Cercon ® Zirconia, Dentsply) were treated as follows: (1) Sandblasting with 125 m aluminum-oxide (Al 2 O 3 ) particles;
Braz J Oral Sci, 2010
Aim: This study evaluated the effect of a coupling agent ceramic primer (CP) on the microshear bond strength (ìsbs) between luting cements and zirconia-based ceramic. Methods: Zirconia discs (Cercon) were made and finished with silicon carbide paper and submitted to air abrasion using 50 µm aluminum oxide particles (Al 2 O 3 ) under 4 bar pressure. Zirconia disks were randomly assigned to four groups (n=10): (G1) ResiCem luting cement + Porcelain Primer, (G2) ResiCem luting cement only, (G3) Clearfil Esthetic Cement + Clearfil Ceramic Primer and (G4) Clearfil Esthetic Cement only. The luting cements were prepared according to manufacturers' recommendations and inserted in an elastomeric mold positioned onto a zirconia disc. Each specimen was photoactivated by 20 s. The specimens were stored at 100% relative humidity and 37ºC for 24 h. The ìsbs test was performed using universal testing machine at a crosshead speed of 0.5 mm/min. An optical microscope was used to analyze the failure modes and illustrative images were captured with a scanning electron microscope. The ìsbs data were analyzed by two-way ANOVA (p<0.05). Results: No significant difference was found among the four groups G1 (17.4±6.8), G2 (17.1±5.5), G3 (15.6±5.5) and G4 (14.2±3.5), all of which showed 100% of adhesive failures. Conclusions: CP showed no increase in the ìsbs between zirconia-based ceramic and resin luting cements.
American journal of dentistry, 2012
To evaluate the influence of different surface treatments and metal primer application on bond strength of zirconia ceramic to a self-adhesive resin cement. 40 cylinder-shaped (Ø 12 x 5.25 mm high) of zirconia ceramic (Aadva Zirconia) were randomly divided into four groups (n= 10), based on the surface treatment to be performed: (1) Sandblasting with 125 microm Al2O3 particles (S) (positive control); (2) Selective infiltration etching (SIE); (3) Experimental heated etching solution applied for 30 minutes (ST); (4) No treatment (C). Half of the zirconia specimens of each group received the application of Metal Primer II. Eight disks for each group were luted using a self-adhesive resin cement (G-Cem Automix) to composite overlays (Paradigm MZ100). After 24-hour storage (37 degrees C, 100% RH) bonded specimens were cut into microtensile sticks and loaded in tension until failure. Data were analyzed with two-way ANOVA and Games-Howell (P < 0.05). Failure mode distribution was record...