Clinical trials with crystal growth conditioning as an alternative to acid-etch enamel pretreatment

Årtun, Jon; Bergland, Sven

doi:10.1016/0002-9416(84)90190-8

Cited by 1,032 publications

(622 citation statements)

References 18 publications

Supporting

Mentioning

574

Contrasting

Unclassified

Order By: Relevance

“…Adhesive forces between 5.9 to 7.8 MPa are adequate for the orthodontic practice (15). These results agree with values reported in the literature as clinically acceptable, since the mean values of fluoride-treated groups were higher than those recommended by the first study, whereas in the oral environment can be found bond strengths lower than those found in vitro (23).…”

Section: Group (N=12)supporting

confidence: 89%

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

et al. 2012

View full text Add to dashboard Cite

The aim of this in vitro study was to evaluate the shear bond strength of brackets after pre-treatment with different fluoride solutions. This study used 48 freshly extracted sound bovine incisors that were randomly assigned to 4 experimental groups (n=12). CG: (control) without treatment; NF: 4 min application of neutral fluoride; APF: application of 1.23% acidulated phosphate fluoride (APF) for 4 min; and SFV: application of 5% sodium fluoride varnish for 6 h. For each group, after surface treatment, prophylaxis of enamel and bracket bonding with Transbond XT composite resin (3M) were performed following the manufacturer's specifications. The shear bond strength was performed with a universal testing machine 24 h after fixing the brackets. The tooth surfaces were analyzed to verify the adhesive remnant index (ARI). Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). There was statistically significant difference among the groups (p<0.0001). CG and NF groups presented significantly higher bond strength than APF and SFV. There was no significant difference between CG and NF or between APF and SFV (p>0.05). The analysis of ARI scores revealed that most failures occurred at the enamel-resin interface. It may be concluded that the pre-treatment of enamel with 1.23% APF and 5% SFV prior to fixing orthodontic brackets reduces shear bond strength values.

show abstract

Section: Group (N=12)supporting

confidence: 89%

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Particle sizes used for the CoJet system and Al2O3 were selected based on previous studies 28,30,31) , and the laser parameters used were determined using a pilot study. In the pilot study, zirconium oxide disk surfaces were scanned once, vertically and horizontally, using the laser machine with different parameters and then evaluated by SEM.…”

Section: Discussionmentioning

confidence: 99%

Effect of ultrashort pulsed laser on bond strength of Y-TZP zirconia ceramic to tooth surfaces

et al. 2015

View full text Add to dashboard Cite

There is limited knowledge about the effects of ultrashort pulsed laser on zirconia ceramic surfaces. The aim of this study was to evaluate the effects of ytterbium (Yb)-doped fiber laser and other surface treatment methods -namely, sandblasting with 110 µm aluminum oxide or 30 µm silica-coated alumina on shear bond strength (SBS) of zirconia to tooth surface. A total of 128 zirconium oxide disks were made by using CAD-CAM technology. Disk surfaces were sandblasted with Al2O3 particles or silica-coated alumina or irradiated with Yb-doped fiber based nanosecond pulsed laser at 85W output power at 25 kHz. Disks were luted to dentin using two different resin cement. SBS of each specimen was measured. Results were statistically analyzed using two-way analysis of variance (ANOVA) and Bonferroni and Dunnett tests (p<0.005). Highest bond strength was obtained when zirconia surface was pretreated with Yb-doped fiber-based nanosecond pulsed laser regardless of the resin cement used.

show abstract

“…The Adhesive Remnant Index (ARI) was used to classify the failure modes as follows (12): score 0: no composite resin left on the ceramic; score 1: less than half the composite resin left on the ceramic; score 2: more than half the composite resin left on the ceramic; and score 3: all composite resin left on the ceramic, with a clear impression of the bracket mesh.…”

Section: Methodsmentioning

confidence: 99%

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

et al. 2017

View full text Add to dashboard Cite

The aim of this study was to evaluate the effect of different number of thermal cycles on the shear bond strength (SBS) of metallic orthodontic brackets bonded to feldspathic ceramic by a composite resin. Twenty-five ceramic cylinders were etched with 10% hydrofluoric acid for 60 s and received two layers of silane. Brackets were bonded to the cylinders using Transbond XT and assigned to 5 groups (n=5): Group 1 -Control group (without thermal cycling); Group 2 -500 thermal cycles; Group 3 -5,000 thermal cycles; Group 4 -7,000 thermal cycles and Group 5 -10,000 thermal cycles. Light-activation was carried out by Radii Plus LED. SBS testing was carried out after 24 h of storage in deionized water and thermal cycling (5/55 o C and 30 s dwell time). Five brackets were bonded to each cylinder, totalizing 25 brackets for each group. Data were submitted to one-way ANOVA and Tukey's test (α=0.05). The Adhesive Remnant Index (ARI) was evaluated at 8× magnification. The SBS (MPa) of control group (9.3±0.8), 500 (9.0±0.7) and 5,000 (8.4±0.9) thermal cycles were significantly higher than those after 7,000 (6.8±0.6) and 10,000 (4.9±1.0) thermal cycles (p<0.05). The ARI showed a predominance of Scores 0 (adhesive failure) prevailed in all groups, as shown by the ARI, with increased scores 1 and 2 (mixed failures) for control group and 500 thermal cycles. In conclusion, thermal fatigue may compromise the bonding integration between metallic brackets and ceramic restorations. For in vitro testing, use of at least 7,000 cycles is advised to result in significant fatigue on the bonding interface. I n f l u e n c e o f T h e r m a l C y c l e s N u m b e r o n B o n d S t r e n g t h o f M e t a l l i c B r a c ke t s t o C e r a m i c

show abstract

Clinical trials with crystal growth conditioning as an alternative to acid-etch enamel pretreatment

Cited by 1,032 publications

References 18 publications

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

Effect of fluoride solutions on the shear bond strength of orthodontic brackets

Effect of ultrashort pulsed laser on bond strength of Y-TZP zirconia ceramic to tooth surfaces

Influence of Thermal Cycles Number on Bond Strength of Metallic Brackets to Ceramic

Contact Info

Product

Resources

About