Effect of Bonding and Rebonding on the Shear Bond Strength of Two‐Piece Implant Restorations

Putra, Armand; Chung, Kwok‐Hung; Guilherme, Nuno Marques; Cagna, David R.

doi:10.1111/jopr.13024

Cited by 7 publications

(6 citation statements)

References 15 publications

(20 reference statements)

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“…This study found that heat oxidation of titanium at 500 ˚C for 5 minutes does not affect resin cement bond strength to zirconia, which is consistent with the previous study [ 8 ]. However, a study found that heating a cp titanium disk over 400˚C can decrease resin bond strength according to the thickening of the oxide layer [ 9 ].…”

Section: Discussionsupporting

confidence: 93%

“…Dental laboratories can separate the crown from the titanium abutment using constant dry heat to break cement retention. A crown can be remade, then the separated abutment can be cleaned and recemented resulting in the desired restoration [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…A study have shown that heating commercially pure titanium disk over 400 ˚C can decrease resin bond strength due to the thickening of the oxide layer [ 10 ]. However, a contrary study on the effects of debonding and rebonding different crown materials on Ti 6 Al 4 V disks, found that heating titanium to 320 ˚C for 2 minutes did not affect the zirconia bond using resin cement but did result in an increased bond strength of lithium disilicate [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Retention of zirconia crown to oxidized titanium base abutment: Experimental research

Krongvanitchayakul,

Kunavisarut

2023

PLoS ONE

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Statement of problem To separate the crown from the titanium base abutment, by using heat, caused oxidization of the titanium base abutment. The effect of this procedure on the retention of a crown is unclear. Purpose To compare the resin bond strength and failure type between zirconia crowns and titanium base abutments utilizing four different surface treatments. Surface roughness and morphology of each surface treatment were also investigated. Material and methods Forty titanium base abutments (Variobase®) were divided into four groups, 1. Control, 2. Air abraded, 3. Oxidized, and 4. Oxidized-air abraded. Oxidized and oxidized-air abraded groups were debonded from zirconia crowns using constant dry heat at 500 ˚C. For air abraded and oxidized-air abraded groups (after oxidization), the titanium base abutments were air abraded with Al3O2. After cleaning, one specimen of each group was investigated under a non-contact profilometer (50x), then the same samples were investigated under SEM at 25,300,500,1000 magnification and EDS at 30kV of accelerated voltage. All specimens were then cemented (RelyX Ultimate). After aging, with thermocycling under 5C° to 55C°,120 seconds dwell time for 5,000 cycles, bond strength was tested and statistical differences were calculated with One-way ANOVA (p-value <0.05) follow by Tukey test. All separated crowns and titanium base abutments were investigated under a light microscope (20x), using fisher’s exact test for correlation of the failure types. Results There was a significant difference in the mean value of tensile bond strength among the control and test groups. Comparisons between control(237.6±46.3N) and oxidized(241.7±46.3N) showed statistically different values from air abraded(372.9±113.2N) when assembled using different surface treatments of the titanium-based abutments. (p-value<0.005) As for failure type, there were statistically significant differences between control versus air abraded, control versus oxidized-air abraded, oxidized versus air abraded, and oxidized versus oxidized-air abraded. (p-value<0.001) The titanium surface morphology shown from the profilometer and SEM was coordinated. Control (Ra 333.8nm) and oxidized (Ra 321.0nm) groups surfaces showed smooth, corrugated surfaces, meanwhile air abraded (Ra 476.0nm) and oxidized-air abraded (Ra 423.8nm) groups showed rough, rugged surfaces. Conclusion Heat oxidization of titanium-based abutments did not adversely affect tensile bond strength or the failure mode and surface roughness between titanium base abutments and zirconia crowns. However, air abrasion of the titanium surface increased surface roughness and retentive strength. Clinical implications The titanium base abutments that were oxidized under heat treatment did not have an effect on crown retention. Thoroughly air abraded the titanium abutment prior to cementation can increase cement bond strength.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Retention of zirconia crown to oxidized titanium base abutment: Experimental research

Krongvanitchayakul,

Kunavisarut

2023

PLoS ONE

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“…In another investigation on the adhesion of five different ceramics and ceramic-like materials with three different resin types of cement, adhesive and cohesive failures after shear bond strength testing were observed at similar frequencies [ 10 ]. In another study examining the bond strength of lithium disilicate ceramics and zirconium ceramics with two-piece abutments, mixed failure (adhesive and cohesive) was observed in the lithium disilicate samples [ 31 ]. In this study, mixed failure was found in all the specimens, similar to the literature.…”

Section: Discussionmentioning

confidence: 99%

Effects of Surface Treatments and Cement Type on Shear Bond Strength between Titanium Alloy and All-Ceramic Materials

Tuncer,

Aktas,

Baris Guncu

et al. 2023

Materials

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This study aimed to evaluate the effects of surface treatments and resin cement on the adhesion of ceramic and ceramic-like materials to titanium. A total of 40 specimens (5 mm diameter) of each material (lithium disilicate glass ceramic (LDGC—IPS e.maxCAD), lithium silicate glass ceramic (LSGC—VITA Suprinity) and a polymer-infiltrated ceramic network (PICN—Vita Enamic)) were fabricated using CAD/CAM technologies. In total, 120 titanium (Ti) specimens were divided into 12 groups, and half of the titanium specimens were tribochemically coated using CoJet. The titanium and all-ceramic specimens were cemented using either Self-curing adhesive cement (SCAC—Panavia 21) or a Self-curing luting composite (SCLC—Multilink Hybrid Abutment). After 5000 cycles of thermal aging, the shear bond strength (SBS) test was conducted using a universal testing machine. The failure modes of the specimens were analyzed using stereomicroscopy, and additionally, the representative specimens were observed using Scanning Electron Microscopy. ANOVA was used for the statistical analysis (p < 0.05). The post-hoc Duncan test was used to determine significant differences between the groups. The mean SBS values (mean ± STD) ranged from 15 ± 2 MPa to 29 ± 6 MPa. Significantly higher SBS values were acquired when the titanium surface was tribochemically coated (p < 0.05). The SCLC showed higher SBS values compared to the SCAC. While the LDGC showed the highest SBS values, the PICN presented the lowest. The tribochemical coating on the cementation surfaces of the titanium increased the SBS values. The specimens cemented with the SCLC showed higher SBS values than those with the SCAC. Additionally, the SCLC cement revealed a more significant increase in SBS values when used with the LDGC. The material used for restoration has a high impact on SBS than those of the cement and surface conditioning.

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“…However, in resin cement, although thermocycling decreased the values of tensile strength, this did not promote a significant difference. This may be due to the use of adhesive systems that, in addition to the surface alteration of Zr with AL 2 O 3 blasting, made the adhesion more stable even after an aging process, as shown in Figure 2 in the confidence interval line 15,28 .…”

Section: Discussionmentioning

confidence: 99%

Retention of cemented zirconia copings on TiBase abutments

Santos-Neto¹,

Gonçalves²,

Filho³

et al. 2021

Acta Odontol Latinoam

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This study evaluated the influence of resin cements and glass ionomers on tensile strength and types of failure of zirconia copings cemented on titanium base abutments. Forty-two samples were prepared, which were formed by a Cone Morse implant, a titanium abutment with the fixing screw, and a zirconia structure made using a CAD/CAM system. The samples (n = 42) were randomly distributed according to the cementing agent: resin-modified glass ionomer cement (RelyX Luting 2), self-adhesive resin cement (RelyX U200), and self-curing resin cement (Multilink N). After cementation of the copings, half of the samples from each group (n = 7) were randomly selected and subjected to thermocycling (5000 cycles). A tensile load test was performed on a universal testing machine until failure occurred (1 mm). In addition, the type of failure was analyzed using the two-way analysis of variance test and Tukey’s post-hoc test (α = 0.05). Lower tensile load was observed for the glass ionomer cement (p < 0.001) regardless of the evaluation period. After thermocycling, a significant reduction in tensile load values was verified for both evaluated cements (p = 0.047). For the resin cements, failures were predominantly of the screw fracture type (82.1%) already with the use of glass ionomer cement, and 28.5% of the failures were of an adhesive type between the zirconia coping and the cement. Resin cements have better stability under tensile load compared to resin glass ionomers when cementing zirconia copings on titanium base abutments.

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Effect of Bonding and Rebonding on the Shear Bond Strength of Two‐Piece Implant Restorations

Cited by 7 publications

References 15 publications

Retention of zirconia crown to oxidized titanium base abutment: Experimental research

Retention of zirconia crown to oxidized titanium base abutment: Experimental research

Effects of Surface Treatments and Cement Type on Shear Bond Strength between Titanium Alloy and All-Ceramic Materials

Retention of cemented zirconia copings on TiBase abutments

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