Influence of the adhesive strategy in the sealing ability of resin composite inlays after deep margin elevation

Clinical Relevance An efficient polymerization of resin composite inlays associated with treatment of the surface and luting with dual resinous cement and flowable resin composites presents better longevity of restorations.

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Adhesion of Indirect MOD Resin Composite Inlays Luted With Self-adhesive and Self-etching Resin Cements

Operative Dentistry ◽

10.2341/11-081 ◽

2012 ◽

Vol 37 (5) ◽

pp. 474-484 ◽

Cited By ~ 6

Author(s):

T Inukai ◽

T Abe ◽

Y Ito ◽

P Pilecki ◽

RF Wilson ◽

...

Keyword(s):

Bond Strength ◽

Resin Composite ◽

Resin Cement ◽

Acid Etching ◽

Resin Cements ◽

Significant Difference ◽

Before And After ◽

Indirect Composite ◽

Bond Strengths ◽

Composite Inlays

SUMMARY This study investigated the effect of loading on the bond strength to dentin and microleakage of MOD indirect composite restorations bonded with self-adhesive and self-etching resin cements with or without acid etching of the proximal enamel margins. Class II MOD cavities were prepared in 48 molar teeth into dentin and divided into three groups of 16 teeth. Impressions were taken and indirect composite inlays fabricated (Estenia C & B). The enamel margins of the proximal boxes of half the specimens were phosphoric acid etched, and the inlays were cemented with one of three cements (Panavia F 2.0, SA Cement, or Rely X Unicem). After luting, eight teeth in each cement group were mechanically loaded at 2.5 cycles/s for 250,000 cycles. Unloaded teeth acted as controls. Teeth were stored in Rhodamine B solution for 24 hours, sectioned buccolingually at the proximal boxes to examine microleakage using confocal microscopy, and further sectioned for μTBS testing of the resin-dentin interface. Analysis of variance was performed to assess the effect of loading and acid etching on microleakage and bond strength. Acid etching had no effect on microleakage. No significant difference in the dentin bond strengths between the three cements existed after loading. Panavia F 2.0 exhibited a significant reduction in bond strength. With regard to microleakage at the proximal boxes, loading had no effect on dye penetration at the cavity floor. However, at the axial walls, loading had a significant deleterious effect on Panavia F 2.0. No difference in microleakage existed between the three cements at both sites before and after loading. In conclusion, the two tested self-adhesive cements exhibited similar bond strengths before and after loading to the self-etching resin cement. Loading reduced dentin bond strengths and increased microleakage at the resin-dentin interface. However, acid etching of the enamel margins had no significant effect on microleakage in the approximal regions of the bonded inlays.

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Sealing ability of materials used as protective cervical barrier in internal tooth bleaching

RSBO ◽

10.21726/rsbo.v14i2.641 ◽

2017 ◽

Vol 14 (2) ◽

pp. 67-73

Author(s):

Juan Fernando Ordoñéz-Aguilera ◽

Rafael Massunari Maenosono ◽

Denise Ferracioli Oda ◽

Heitor Marques Honório ◽

Rafael Francisco Lia Mondelli ◽

...

Keyword(s):

Resin Composite ◽

Glass Ionomer Cement ◽

Rank Correlation ◽

In Vitro Study ◽

Tooth Bleaching ◽

Glass Ionomer ◽

Sealing Ability ◽

Resin Modified Glass Ionomer ◽

Ionomer Cement

The use of a protective cervical barrier (PCB) is very well established to perform a safe internal bleaching; however, there is still no consensus on which material has the best sealing ability. Objective: This in vitro study aimed to evaluate the apical and linear sealing of different PCB materials placed during internal bleaching. Material and methods: This study had two study factors: PCB positioning, divided at two levels (cement-enamel junction [CEJ] and 1mm above the cement enamel junction [CEJ+1]); and PCB material, divided at eight levels (resin composite [RC], glass ionomer cement [GIC], resin-modified glass ionomer cement liner [LRGIC], restorative resin-modified glass ionomer cement [RRGIC], zinc phosphate cement [ZPC], eugenol-free zinc oxide cement [ZOC], provisional filling resin [PFR] and gutta-percha as control [GUT]). Response variables were apical and linear sealing obtained through dye penetration and analyzed with a digital microscope. Data were subjected to two-way analysis of variance followed by Tukey test (p<0.05). Results: The main factor for both apical and linear sealing was the type of material (p<0.01) regardless of their position. RC and ZPC presented the worst sealing values (p<0.05). The Spearman rank correlation coefficient revealed a positive correlation between the apical and linear leakage. Conclusion: The results suggest that RC and ZPC must be avoided as a PCB during internal bleaching procedures.

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Sealing ability of materials used as protective cervical barrier in internal tooth bleaching

RSBO ◽

10.21726/rsbo.v1i2.405 ◽

2017 ◽

Vol 1 (2) ◽

pp. 67

Author(s):

Juan Fernando Ordoñéz-Aguilera ◽

Rafael Massunari Maenosono ◽

Denise Ferracioli Oda ◽

Heitor Marques Honório ◽

Rafael Francisco Lia Mondelli ◽

...

Keyword(s):

Resin Composite ◽

Glass Ionomer Cement ◽

In Vitro Study ◽

Tooth Bleaching ◽

Glass Ionomer ◽

Sealing Ability ◽

Resin Modified Glass Ionomer ◽

Materials Used ◽

Ionomer Cement

The use of a protective cervical barrier (PCB) is very well established to perform a safe internal bleaching; however, there is still no consensus on which material has the best sealing ability. Objective: This in vitro study aimed to evaluate the apical and linear sealing of different PCB materials placed during internalbleaching. Material and methods: This study had two study factors: PCB positioning, divided at two levels (cement-enamel junction [CEJ] and 1mm above the cement enamel junction [CEJ+1]); and PCB material, divided at eight levels (resin composite [RC], glass ionomer cement [GIC], resin-modified glass ionomer cement liner [LRGIC], restorative resin-modified glass ionomer cement [RRGIC], zinc phosphate cement [ZPC], eugenol-free zinc oxide cement [ZOC],provisional filling resin [PFR] and gutta-percha as control [GUT]). Response variables were apical and linear sealing obtained through dye penetration and analyzed with a digital microscope. Data were subjected to two-way analysis of variance followed by Tukey test (p<0.05). Results: The main factor for both apical and linear sealing was the type of material (p<0.01), regardless of their position. RC and ZPC presented the worst sealing values (p<0.05). The Spearmanrank correlation coefficient revealed a positive correlation between the apical and linear leakage. Conclusion: The results suggest that RC and ZPC must be avoided as a PCB during internal bleaching procedures.

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Bond Strength to Unground Enamel and Sealing Ability in Pits and Fissures of a New Self-Adhering Flowable Resin Composite

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.37.4.q4753m663808652w ◽

2013 ◽

Vol 37 (4) ◽

pp. 397-402 ◽

Cited By ~ 7

Author(s):

M Margvelashvili ◽

A Vichi ◽

M Carrabba ◽

C Goracci ◽

M Ferrari

Keyword(s):

Bond Strength ◽

Resin Composite ◽

Nitrate Solution ◽

Silver Nitrate Solution ◽

Group Differences ◽

Sealing Ability ◽

Vertise Flow ◽

Fissure Sealing ◽

Self Etch ◽

Pits And Fissures

Objective: To evaluate the applicability as a sealant of a new self-adhering flowable resin composite (Vertise Flow, Kerr, VF) by assessing shear bond strength (SBS) to unground enamel and microleakage (?LKG) in sealed pits and fissures. Study Design: Marketed sealants to be used in combination with phosphoric acid (Guardian Seal, Kerr, GS) or with a self-etch adhesive (Adper Prompt-L-Pop/Clinpro Sealant, 3M ESPE, CS) were compared to VF. For SBS testing on unground enamel 10 molars per group were used. For ?LKG assessment, pits and fissures sealing was performed in 12 molars per group. The sealed teeth were immersed in a 50% weight silver nitrate solution for 24 hours and the extent of interfacial leakage was measured. Between-group differences in SBS were assessed using One-Way Analysis of Variance (ANOVA), followed by Tukey test (p<0.05). ?LKG data were analyzed with Kruskall-Wallis ANOVA (p>0.05). Results: SBS of VF was statistically similar to that measured by CS and higher than that of GS. Interfacial leakage was similar in the three groups. Conclusions: The finding of satisfactory bond strength and sealing ability of VF when compared to the marketed sealants encourages the use of VF in pit and fissure sealing.

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