Influence of environmental conditions on orthodontic bracket bonding of self-etching systems

Rikuta, Akitomo; Yoshida, Takeshi; Tsubota, Keishi; Tsuchiya, Hiroaki; Tsujimoto, Akimasa; Ota, Maiko; Miyazaki, Masashi

doi:10.4012/dmj.27.654

Cited by 7 publications

(4 citation statements)

References 24 publications

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“…Several researchers have described residual adhesive levels after debracketing, at various bond strengths (20)(21)(22)(23). Rikuta et al (24) reported that an area of more than 50% of the SB, which was used to bond the metal bracket onto the tooth surface in a shear test, occurred in 90% of specimens. Algera et al (25) reported that a remnant area of more than 50% was common.…”

Section: Discussionmentioning

confidence: 99%

Effect of orthodontic adhesive thickness on force required by debonding pliers

et al. 2014

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This in vitro study evaluated the relationship between removal force and the thickness of three orthodontic adhesives, namely, light-and chemical-cured resin cements and a resin-modified glass ionomer cement. The thickness of each adhesive was 50, 100, 150, or 200 µm, and all adhesives were bonded on bovine incisors. Removal force was measured before (TC-0) and after 1,000 thermal cycles (TC-1000), and values were compared. At TC-0, the removal strengths for adhesive thicknesses of 50 and 100 µm were significantly lower than those for thicknesses of 150 and 200 µm (P < 0.05). At TC-1000, removal strengths for adhesive thicknesses of 50 and 100 µm were also significantly lower than those for 150 and 200 µm. Superbond Orthomite specimens showed a significant difference in removal strength between TC-0 and TC-1000 (P < 0.05) at all thicknesses. There was no significant difference in the distribution of adhesive remnant index scores at any thickness. These findings indicate that decreasing the thickness of applied orthodontic adhesive reduces the removal strength required. (J Oral Sci 56, [185][186][187][188][189][190] 2014)

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Section: Discussionmentioning

confidence: 99%

Effect of orthodontic adhesive thickness on force required by debonding pliers

et al. 2014

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“…32 Discrepancies regarding the previously reported bond strength values might result from the different surface treatments, different modes of measurement and different operators. [33][34] Regarding the effect of saliva contamination on the enamel bond strength of self-etching adhesives, in previous studies, self-etching adhesives were usually used prior to bracket bonding [6][7][8][9][10][16][17][18][26][27] or placement of the fissure sealants [21][22][23] and they were rarely applied with salivary contamination for resin restorations. 24 In the current study, short-term contamination with saliva either before or after priming had a detrimental effect on the enamel µTBS of self-etching adhesives (p<0.001).…”

Section: Discussionmentioning

confidence: 99%

Effect of Saliva Contamination and Decontamination on Bovine Enamel Bond Strength of Four Self-etching Adhesives

Jiang¹,

Pan²,

Liu³

et al. 2010

Operative Dentistry

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SUMMARYObjective: This study evaluated the effect of saliva contamination on the bovine enamel microtensile bond strengths (µTBS) of four selfetching adhesives. Materials and Methods: The labial enamel surfaces of extracted non-carious bovine incisors were serially wet ground. The enamel surfaces were not contaminated (Group A), contaminated with saliva before/after priming (Groups B/C) or they were water-sprayed after salivary contamination occurred before/ after priming (Groups D/E). Four self-etching adhesives and the corresponding resin composites from the same manufacturer (Clearfil SE Bond + Clearfil AP-X, Kuraray Co; Xeno III + Ceram X, Densply; Frog + Ice, SDI; FL Bond II + Beautifil II, Shofu Inc) were applied onto the enamel surfaces. The µTBS tests were performed with a micro tester (BISCO, Inc). The enamel surface was analyzed with AFM (Atomic Force Microscopy) before/after salivary contamination occurred or after the saliva-contaminated enamel was water-sprayed. The data were analyzed using one-way ANOVA, factorial design ANOVA and post hoc Tukey's HSD multiple comparisons. Salivary contamination before and after priming could significantly reduce the enamel bond strength of self-etching adhesives. Proper isolation should be performed before and during application of the adhesives and placement of the resin composite. Thorough water-spraying could significantly improve the µTBS of saliva-contaminated enamel.

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“…However, the humidity of the oral environment makes high in vitro adhesion difficult to achieve 1,6,18) . Contamination of the adhered surface by saliva or blood may also inhibit bonding 3,5,9,11,13,17) . This suggests the potential of the rubber dam isolation technique in preventing such contamination and reducing humidity 12) .…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Rubber Dam Application on Intraoral Temperature and Relative Humidity

Haruyama

Kameyama

Tatsuta

et al. 2014

Bull. Tokyo Dent. Coll.

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The purpose of this study was to investigate the effect of type of rubber dam and application method on the moisture exclusion effect. The intraoral temperature and relative humidity were compared among various moisture exclusion appliances. Various dry field techniques were applied to 5 subjects and intraoral temperature and relative humidity measured 5 min after placing a digital hygro-thermometer in the mouth. The relative humidity was 100% in all subjects when moisture was excluded by means of cotton rolls alone. When only tooth 36 was exposed, relative humidity was significantly lower with latex, urethane, or 3-dimensional sheets than with cotton rolls alone, and was similar to the level of humidity in the room. When a local rubber dam was used, the relative humidity was significantly higher than the indoor humidity (p<0.05). No significant differences were noted in the intraoral temperature or relative humidity between exposure of 4 teeth and 1 tooth, but variation in the relative humidity was more marked in 4-than in 1-tooth exposure. The creation of an air vent did not influence the moisture exclusion effect. These results suggest that the rubber dam isolation technique excludes moisture to a level equivalent to the humidity in the room when only a single tooth is exposed, but the moisture exclusion effect may be inconsistent when several teeth are exposed.

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Influence of environmental conditions on orthodontic bracket bonding of self-etching systems

Cited by 7 publications

References 24 publications

Effect of orthodontic adhesive thickness on force required by debonding pliers

Effect of orthodontic adhesive thickness on force required by debonding pliers

Effect of Saliva Contamination and Decontamination on Bovine Enamel Bond Strength of Four Self-etching Adhesives

Influence of Different Rubber Dam Application on Intraoral Temperature and Relative Humidity

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