J Adv Prosthodont.  2012 Nov;4(4):192-196. 10.4047/jap.2012.4.4.192.

Effect of different provisional cement remnant cleaning procedures including Er:YAG laser on shear bond strength of ceramics

Affiliations
  • 1Department of Prosthetic Dentistry, Faculty of Dentistry, Erciyes University, Kayseri-Turkey.
  • 2Department of Prosthetic Dentistry, Faculty of Dentistry, Mustafa Kemal University, Hatay-Turkey. alirizatuncdemir@gmail.com

Abstract

PURPOSE
The purpose of this study was to evaluate the effect of provisional cement removal by different dentin cleaning protocols (dental explorer, pumice, cleaning bur, Er:YAG laser) on the shear bond strength between ceramic and dentin.
MATERIALS AND METHODS
In total, 36 caries-free unrestored human third molars were selected as tooth specimens. Provisional restorations were fabricated and cemented with eugenol-free provisional cement. Then, disc-shaped ceramic specimens were fabricated and randomly assigned to four groups of dentin cleaning protocols (n = 9). Group 1 (control): Provisional cements were mechanically removed with a dental explorer. Group 2: The dentin surfaces were treated with a cleaning brush with pumice Group 3: The dentin surfaces were treated with a cleaning bur. Group 4: The provisional cements were removed by an Er:YAG laser. Self-adhesive luting cement was used to bond ceramic discs to dentin surfaces. Shear bond strength (SBS) was measured using a universal testing machine at a 0.05 mm/min crosshead speed. The data were analyzed using a Kolmogorov Smirnov, One-way ANOVA and Tukey HSD tests to perform multiple comparisons (alpha=0.05).
RESULTS
The dentin cleaning methods did not significantly affect the SBS of ceramic discs to dentin as follows: dental explorer, pumice, cleaning bur, and Er:YAG laser.
CONCLUSION
The use of different cleaning protocols did not affect the SBS between dentin and ceramic surfaces.

Keyword

Bond strength; Er:YAG laser; Porcelain; Provisional cement

MeSH Terms

Ceramics
Collodion
Dental Porcelain
Dentin
Humans
Molar, Third
Silicates
Tooth
Ceramics
Collodion
Dental Porcelain
Silicates

Figure

  • Fig. 1 A special loading device was designed to apply a constant load of 9.2 N to the ceramic discs.

  • Fig. 2 Results of the shear bond strength tests (P>.05).

  • Fig. 3 SEM micrographs of provisional cement contaminated dentin surfaces after dentin cleaning protocols. A: Cleaned with dental explorer, B: Cleaned with cleaning bur, C: Cleaned with pumice, D: Cleaned with LASER (Original magnification×1,000).

  • Fig. 4 SEM micrographs of dentin surfaces cleaned with different dentin cleaning protocols after SBS test. A: Cleaned with dental explorer, B: Cleaned with cleaning bur, C: Cleaned with pumice, D: Cleaned with LASER (Original magnification×1,000).


Reference

1. Sarac D, Sarac YS, Kulunk S, Kulunk T. Effect of the dentin cleansing techniques on dentin wetting and on the bond strength of a resin luting agent. J Prosthet Dent. 2005. 94:363–369.
2. Ayad MF, Rosenstiel SF, Hassan MM. Surface roughness of dentin after tooth preparation with different rotary instrumentation. J Prosthet Dent. 1996. 75:122–128.
3. Terata R. Characterization of enamel and dentin surfaces after removal of temporary cement-study on removal of temporary cement. Dent Mater J. 1993. 12:18–28.
4. Abo-Hamar SE, Federlin M, Hiller KA, Friedl KH, Schmalz G. Effect of temporary cements on the bond strength of ceramic luted to dentin. Dent Mater. 2005. 21:794–803.
5. Kanakuri K, Kawamoto Y, Matsumura H. Influence of temporary cement remnant and surface cleaning method on bond strength to dentin of a composite luting system. J Oral Sci. 2005. 47:9–13.
6. Button GL, Moon PC, Barnes RF, Gunsolley JC. Effect of preparation cleaning procedures on crown retention. J Prosthet Dent. 1988. 59:145–148.
7. Bachmann M, Paul SJ, Lüthy H, Schärer P. Effect of cleaning dentine with soap and pumice on shear bond strength of dentine-bonding agents. J Oral Rehabil. 1997. 24:433–438.
8. Usumez A, Usumez S, Orhan M. Effect of complete dentures on dynamic measurement of changing head position: A pilot study. J Prosthet Dent. 2003. 90:394–400.
9. Omae M, Shinnou Y, Tanaka K, Abo T, Nakata T, Suzuki K, Hatsuoka Y, Iwata N, Yoshikawa K, Nishitani Y, Yamamoto K, Yoshiyama M. XPS analysis of the dentin irradiated by Er: YAG laser. Dent Mater J. 2009. 28:471–476.
10. Zortuk M, Kilic K, Uzun G, Ozturk A, Kesim B. The effect of different fiber concentrations on the surface roughness of provisional crown and fixed partial denture resin. Eur J Dent. 2008. 2:185–190.
11. Ergun G, Cekic I, Lassila LV, Vallittu PK. Bonding of lithium-disilicate ceramic to enamel and dentin using orthotropic fiber-reinforced composite at the interface. Acta Odontol Scand. 2006. 64:293–299.
12. Carvalho CN, de Oliveira Bauer JR, Loguercio AD, Reis A. Effect of ZOE temporary restoration on resin-dentin bond strength using different adhesive strategies. J Esthet Restor Dent. 2007. 19:144–152.
13. Yap AU, Shah KC, Loh ET, Sim SS, Tan CC. Influence of eugenol-containing temporary restorations on bond strength of composite to dentin. Oper Dent. 2001. 26:556–561.
14. Chaiyabutr Y, Kois JC. The effects of tooth preparation cleansing protocols on the bond strength of self-adhesive resin luting cement to contaminated dentin. Oper Dent. 2008. 33:556–563.
Full Text Links
  • JAP
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr