Effect of marginal sealant on shear bond strength of glass ionomer cement: used as a luting agent.

Autor:	Nazirkar G; Department of Prosthodontics, SMBT Dental College & Hospital and Post Graduate Research Centre, Amrutnagar, Sangamner, Maharashtra, India., Singh S; Department of Prosthodontics, SMBT Dental College & Hospital and Post Graduate Research Centre, Amrutnagar, Sangamner, Maharashtra, India., Badgujar M; Department of Prosthodontics, SMBT Dental College & Hospital and Post Graduate Research Centre, Amrutnagar, Sangamner, Maharashtra, India., Gaikwad B; Department of Prosthodontics, Sinhgad Dental College and Hospital, Wadgaon (BK), Pune, Maharashtra, India., Bhanushali S; Department of Prosthodontics, SMBT Dental College & Hospital and Post Graduate Research Centre, Amrutnagar, Sangamner, Maharashtra, India., Nalawade S; Department of Prosthodontics, SMBT Dental College & Hospital and Post Graduate Research Centre, Amrutnagar, Sangamner, Maharashtra, India.
Jazyk:	angličtina
Zdroj:	Journal of international oral health : JIOH [J Int Oral Health] 2014 Jun; Vol. 6 (3), pp. 65-9. Date of Electronic Publication: 2014 Jun 26.
Abstrakt:	Background: Moisture sensitivity and dissolution has been a known drawback of glass ionomer cement (GIC). When used as a luting agent for cementation of casted indirect restoration, the exposed cement at the margins is often a primary factor for marginal leakage and consequent failure of the restoration. The following in vitro study was planned to evaluate the effect of a marginal sealant on GIC used as luting agent. Materials and Methods: Sixty healthy extracted premolars were selected and prepared to receive metal-ceramic prosthesis. The prepared restorations were cemented using GIC and were divided randomly into two groups. The specimens in Group A were directly immersed in artificial saliva solution without any protection at the margins, while the exposed cement for Group B specimens was protected using a marginal sealant before immersing it in the artificial saliva solution. The specimens were tested after 24 h using a crown pull test on the universal testing machine to measure the shear bond strength of the cement. Result: The specimens in Group B showed statistically significant difference from the specimens in Group A with the mean shear bond strength of 6.60 Mpa and 5.32 respectively. Conclusion: Protection of GIC exposed at the margins of indirect cast restorations with a marginal sealant can significantly increase the longevity of the prosthesis by reducing the marginal leakage and perlocation of fluids. How to cite the article: Nazirkar G, Singh S, Badgujar M, Gaikwad B, Bhanushali S, Nalawade S. Effect of marginal sealant on shear bond strength of glass ionomer cement: Used as a luting agent. J Int Oral Health 2014;6(3):65-9.
Databáze:	MEDLINE
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