Abstract
Purpose: To examine the effect of CHX pre-treatment on long-term bond strength of fiber posts luted with self-adhesive resin cements. Materials and Methods: Seventy-two single-rooted teeth were selected for root canal treatment and post space preparation. The tested self-adhesive cement/post combinations were (N = 36): 1. RelyX Fiber-Posts luted with RelyX Unicem; 2. Rebilda Posts luted with Bifix SE Cement. For both self-adhesive cements, half of the specimens (experimental groups) were luted after the application of a solution of 2% CHX, while no CHX application was performed for the remaining specimens (control groups). Luted specimens were cut and used for push-out bond strength evaluation immediately, and after storage in artificial saliva for 6 months or 1 year. Additional specimens were processed for quantitative interfacial nanoleakage analysis. Results: ANOVA showed that the variable times of storage had a significant influence on the results (p < 0.05), while no influence of the luting procedure (cements with or without CHX) on the final outcome (p > 0.05) was found. Tukey's pairwise post-hoc test showed that the radicular bond strength decreased with time of storage. In particular, a significant difference was found between T0 and T1y, but not between T0 and T6m. In contrast, in terms of pretreatment, no significant reduction in push-out bond strength was observed, irrespective of the aging time. Conclusion: CHX pretreatment did not prevent bond strength degradation of fiber posts luted with self-adhesive cements.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 341-348 |
| Number of pages | 8 |
| Journal | Journal of Adhesive Dentistry |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jan 1 2017 |
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Keywords
- Chlorhexidine
- Dentin bonding agents
- Fiber posts
- Nanoleakage analysis
- Push out
- Self-adhesive cements
ASJC Scopus subject areas
- Orthodontics
- Oral Surgery
- Periodontics
Cite this
Role of chlorhexidine on long-term bond strength of self-adhesive composite cements to intraradicular dentin. / Angeloni, Valeria; Mazzoni, Annalisa; Marchesi, Giulio; Cadenaro, Milena; Comba, Allegra; Maravić, Tatjana; Scotti, Nicola; Pashley, David Henry; Tay, Franklin Chi Meng; Breschi, Lorenzo.
In: Journal of Adhesive Dentistry, Vol. 19, No. 4, 01.01.2017, p. 341-348.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of chlorhexidine on long-term bond strength of self-adhesive composite cements to intraradicular dentin
AU - Angeloni, Valeria
AU - Mazzoni, Annalisa
AU - Marchesi, Giulio
AU - Cadenaro, Milena
AU - Comba, Allegra
AU - Maravić, Tatjana
AU - Scotti, Nicola
AU - Pashley, David Henry
AU - Tay, Franklin Chi Meng
AU - Breschi, Lorenzo
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Purpose: To examine the effect of CHX pre-treatment on long-term bond strength of fiber posts luted with self-adhesive resin cements. Materials and Methods: Seventy-two single-rooted teeth were selected for root canal treatment and post space preparation. The tested self-adhesive cement/post combinations were (N = 36): 1. RelyX Fiber-Posts luted with RelyX Unicem; 2. Rebilda Posts luted with Bifix SE Cement. For both self-adhesive cements, half of the specimens (experimental groups) were luted after the application of a solution of 2% CHX, while no CHX application was performed for the remaining specimens (control groups). Luted specimens were cut and used for push-out bond strength evaluation immediately, and after storage in artificial saliva for 6 months or 1 year. Additional specimens were processed for quantitative interfacial nanoleakage analysis. Results: ANOVA showed that the variable times of storage had a significant influence on the results (p < 0.05), while no influence of the luting procedure (cements with or without CHX) on the final outcome (p > 0.05) was found. Tukey's pairwise post-hoc test showed that the radicular bond strength decreased with time of storage. In particular, a significant difference was found between T0 and T1y, but not between T0 and T6m. In contrast, in terms of pretreatment, no significant reduction in push-out bond strength was observed, irrespective of the aging time. Conclusion: CHX pretreatment did not prevent bond strength degradation of fiber posts luted with self-adhesive cements.
AB - Purpose: To examine the effect of CHX pre-treatment on long-term bond strength of fiber posts luted with self-adhesive resin cements. Materials and Methods: Seventy-two single-rooted teeth were selected for root canal treatment and post space preparation. The tested self-adhesive cement/post combinations were (N = 36): 1. RelyX Fiber-Posts luted with RelyX Unicem; 2. Rebilda Posts luted with Bifix SE Cement. For both self-adhesive cements, half of the specimens (experimental groups) were luted after the application of a solution of 2% CHX, while no CHX application was performed for the remaining specimens (control groups). Luted specimens were cut and used for push-out bond strength evaluation immediately, and after storage in artificial saliva for 6 months or 1 year. Additional specimens were processed for quantitative interfacial nanoleakage analysis. Results: ANOVA showed that the variable times of storage had a significant influence on the results (p < 0.05), while no influence of the luting procedure (cements with or without CHX) on the final outcome (p > 0.05) was found. Tukey's pairwise post-hoc test showed that the radicular bond strength decreased with time of storage. In particular, a significant difference was found between T0 and T1y, but not between T0 and T6m. In contrast, in terms of pretreatment, no significant reduction in push-out bond strength was observed, irrespective of the aging time. Conclusion: CHX pretreatment did not prevent bond strength degradation of fiber posts luted with self-adhesive cements.
KW - Chlorhexidine
KW - Dentin bonding agents
KW - Fiber posts
KW - Nanoleakage analysis
KW - Push out
KW - Self-adhesive cements
UR - http://www.scopus.com/inward/record.url?scp=85029646059&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029646059&partnerID=8YFLogxK
U2 - 10.3290/j.jad.a38896
DO - 10.3290/j.jad.a38896
M3 - Article
VL - 19
SP - 341
EP - 348
JO - The journal of adhesive dentistry
JF - The journal of adhesive dentistry
SN - 1461-5185
IS - 4
ER -