Correlation between microleakage and screw loosening at implantabutment connection
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PURPOSE. This study aimed to evaluate the correlation between microleakage and screw loosening at different types of implant-abutment connections and/or geometries measuring the torque values before and after the leakage tests. MATERIALS AND METHODS. Three different abutment types (Intenal hex titanium, internal hex zirconium, morse tapered titaniuım) with different geometries were connected to its own implant fixture. All the abutments were tightened with a standard torque value then the composition was connected to the modified fluid filtration system. After the measurements of leakage removal torque values were re-measured. Kruskal-wallis test was performed for non-parametric and one-way ANOVA was performed for parametric data. The correlation was evaluated using Spearman Correlation Test (α=0.05). RESULTS. Significantly higher microleakage was found at the connection of implant-internal hex zirconium abutment. Observed mean torque value loss was also significantly higher than other connection geometries. Spearman tests revealed a significant correlation between microleakage and screw loosening. CONCLUSION. Microleakage may provoke screw loosening. Removing torque values rationally decrease with the increase of microleakage.
Abstract
PURPOSE. This study aimed to evaluate the correlation between microleakage and screw loosening at different types of implant-abutment connections and/or geometries measuring the torque values before and after the leakage tests. MATERIALS AND METHODS. Three different abutment types (Intenal hex titanium, internal hex zirconium, morse tapered titaniuım) with different geometries were connected to its own implant fixture. All the abutments were tightened with a standard torque value then the composition was connected to the modified fluid filtration system. After the measurements of leakage removal torque values were re-measured. Kruskal-wallis test was performed for non-parametric and one-way ANOVA was performed for parametric data. The correlation was evaluated using Spearman Correlation Test (α=0.05). RESULTS. Significantly higher microleakage was found at the connection of implant-internal hex zirconium abutment. Observed mean torque value loss was also significantly higher than other connection geometries. Spearman tests revealed a significant correlation between microleakage and screw loosening. CONCLUSION. Microleakage may provoke screw loosening. Removing torque values rationally decrease with the increase of microleakage.
참고문헌 (23)
- McGlumphy EA., "Implant screw mechanics", Dent Clin North Am, 42, pp.71~89 (1998)
- Byrne D., "Preloads generated with repeated tightening in three types of screws used in dental implant assemblies", J Prosthodont, 15, pp.164~171 (2006)
- Binon PP., "Implants and components : entering the new millennium", Int J Oral Maxillofac Implants, 15, pp.76~94 (2000)
- Pjetursson BE., "Comparison of survival and complication rates of tooth-supported fixed dental prostheses(FDPs)and implant-supported FDPs and single crowns(SCs)", Clin Oral Implants Res, 18, pp.97~113 (2007)
- Jung RE., "A systematic review of the 5-year survival and complication rates of implant-supported single crowns", Clin Oral Implants Res, 19, pp.119~130 (2008)
- Sakaguchi RL., "Nonlinear contact analysis of preload in dental implant screws", Int J Oral Maxillofac Implants, 10, pp.295~302 (1995)
- Binon PP., "The effect of implant", abutment hexagonal misfit on screw joint stability, 1996, pp.9, 149~160
- al-Turki LE., "Changes in prosthetic screw stability because of misfit of implantsupported prostheses", Int J Prosthodont, 15, pp.38~42 (2002)
- Khraisat A., "Effect of lateral cyclic loading on abutment screw loosening of an external hexagon implant system", J Prosthet Dent, 91, pp.326~334 (2004)
- Broggini N., "Peri-implant inflammation defined by the implant-abutment interface", J Dent Res, 85, pp.473~478 (2006)
- do Nascimento C., "Bacterial leakage along the implant-abutment interface of premachined or cast components", Int J Oral Maxillofac Surg, 37, pp.177~180 (2008)
- Cardoso M., "Torque removal evaluation of prosthetic screws after tightening and loosening cycles : an in vitro study", Clin Oral Implants Res, 23, pp.475~480 (2012)
- Spazzin AO., "Effect of retorque on loosening torque of prosthetic screws under two levels of fit of implant-supported dentures", Braz Dent J, 21, pp.12~17 (2010)
- Sahin C., "In vitro permeability of etch-and-rinse and self-etch adhesives used for immediate dentin sealing", Dent Mater J, 31, pp.401~408 (2012)
- Pessoa RS., "Influence of implant connection type on the biomechanical environment of immediately placed implants-CT-based nonlinear, three-dimensional finite element analysis", Clin Implant Dent Relat Res, 12, pp.219~234 (2010)
- Jansen VK., "Microbial leakage and marginal fit of the implant-abutment interface", Int J Oral Maxillofac Implants, 12, pp.527~540 (1997)
- Haack JE., "Elongation and preload stress in dental implant abutment screws", Int J Oral Maxillofac Implants, 10, pp.529~536 (1995)
- Gross M., "Microleakage at the abutment-implant interface of osseointegrated implants : a comparative study", Int J Oral Maxillofac Implants, 14, pp.94~100 (1999)
- Coelho PG., "In vitro evaluation of the implant abutment connection sealing capability of different implant systems", J Oral Rehabil, 35, pp.917~924 (2008)
- Steinebrunner L., "In vitro evaluation of bacterial leakage along the implant-abutment interface of different implant systems", Int J Oral Maxillofac Implants, 20, pp.875~881 (2005)
- Barbosa GA., "Relation between implant", abutment vertical misfit and torque loss of abutment screws, 2008, pp.19, 358~363
- Verran J., "Retention of Candida albicans on acrylic resin and silicone of different surface topography", J Prosthet Dent, 77, pp.535~539 (1997)
- Taylor R., "Retention of oral microorganisms on cobalt-chromium alloy and dental acrylic resin with different surface finishes", J Prosthet Dent, 80, pp.592~597 (1998)