Citation Information :
Ramachandran A, Lekshmi BJ, Pillai R, Varghese NO, Salim AA, Sujathan U. Effect of Conditioning on Adhesion of Glass Ionomer Cements to Dentin. Cons Dent Endod J 2018; 3 (1):6-10.
Aim: To compare the shear bond strength (SBS) to dentin, of three different glass ionomer cements (GIC): Ketac Universal (with and without conditioner), Fuji IX, and Ketac Molar.
Materials and methods: Forty-eight extracted human maxillary premolars were selected. Depth holes measuring 1.5 mm were drilled in the deepest part of central fossa of each tooth sample. Occlusal surfaces were ground on a trimmer to expose flat dentinal surface and polished. The specimens were then embedded in autopolymerizing acrylic resin. Groups I, III, and IV specimens were restored with Ketac Universal, Fuji IX, and Ketac Molar respectively after conditioning. Group II specimens were restored with Ketac Universal without conditioning. A cellophane tube of diameter 4 mm was used to prepare GIC restorations. The samples were kept in water bath at 37°C for 24 hours. Each GIC specimen was loaded in a universal testing machine (INSTRON) with a crosshead speed of 0.5 mm/min. The bond strength (MPa) was calculated by dividing the shear force in Newton (N) by area of adhesion (m2).
Statistical analysis: The results were statistically analyzed by Welch test and analysis of variance (ANOVA) test with pairwise “t” test.
Results: The mean value of SBS was found to be highest for Ketac Molar, followed by Ketac Universal with conditioner, and Fuji IX GIC, and was lowest for Ketac Universal without conditioner.
Conclusion: Ketac Universal, when used without conditioner, showed significant values of SBS, but is less than other conventional GICs.
Murthy SS, Murthy GS. Comparative evaluation of shear bond strength of three commercially available glass ionomer cements in primary teeth. J Int Oral Health 2015 Aug;7(8): 103-107.
Knight GM, McIntyre JM, Mulyani. The effect of silver fluoride and potassium iodide on the bond strength of auto cure glass ionomer cement to dentine. Aust Dent J 2006 Mar;51(1):42-45.
Manuja N, Pandit IK, Srivastava N, Gugnani N, Nagpal R Comparative evaluation of shear bond strength of various esthetic restorative materials to dentin: an in vitro study. J Indian Soc Pedod Prev Dent 2011 Jan-Mar;29(1):7-13.
Swift EJ Jr, Perdigao J, Heymann HO. Bonding to enamel and dentin: a brief history and state of the art, 1995. Quintessence Int 1995 Feb;26(2):95-110.
Aasen SM. History of dentinal bonding. Esthet Dent Update 1990;1:43-46.
Eick JD, Wilko RA, Anderson CH, Sorensen SE. Scanning electron microscopy of cut tooth surfaces and identification of debris by use of electron microprobe. J Dent Res 1970 Jun;49(6):1359-1368.
Gwinnett AJ. Smear layer: morphological considerations. Oper Dent (Suppl) 1984;3:2-12.
Van Meerbeek B, De Munck J, Yoshida Y, Inoue S, Vargas M, Vijay P, Van Landuyt K, Lambrechts P, Vanherle G. Buonocore Memorial Lecture. Adhesion to enamel and dentin: current status and future challenges. Oper Dent 2003 May- Jun;28(3):215-235.
Inoue S, Van Meerbeek B, Abe Y, Yoshida Y, Lambrechts P, Vanherle G, Sano H. Effect of remaining dentin thickness and the use of conditioner on micro-tensile bond strength of a glass-ionomer adhesive. Dent Mater 2001 Sep;17(5):445-455.
Powis DR, Folleras T, Merson SA, Wilson AD. Improved adhesion of a glass ionomer cement to dentin and enamel. J Dent Res 1982 Dec;61(12):1416-1422.
Tyas MJ, Burrow MF. Adhesive restorative materials: a review. Aust Dent J 2004 Sep;49(3):112-121.
Carvalho TS, van Amerongen WE, de Gee A, Bönecker M, Sampaio FC. Shear bond strengths of three glass ionomer cements to enamel and dentine. Med Oral Patol Oral Cir Bucal 2011 May;16(3):e406-e410.
Ketac™ Universal Glass Ionomer Restorative Technical Data Sheet.
Poggio C, Beltrami R, Scribante A, Colombo M, Lombardini M. Effects of dentin surface treatments on shear bond strength of glass-ionomer cements. Ann Stomatol (Roma) 2014 Mar;5(1):15-22.
Tay FR, Smales RJ, Ngo H, Wei SH, Pashley DH. Effect of different conditioning protocols on adhesion of a GIC to dentin. J Adhesive Dent 2001 Summer; 3(2):153-167.
Peutzfeldt A, Asmussen E. Effect of polyacrylic acid treatment of dentin on adhesion of glass ionomer current. Acta Odontol Scand 1990 Oct;48(5):337-341.
Ciucchi B, Bouillaguet S, Holz J, Pashiey D. Dentinal fluid dynamics in human teeth, in vivo. J Endod 1995 Apr;21(4):191-194.
Sidhu SK, Nicholson JW. A review of glass-ionomer cements for clinical dentistry. J Funct Biomater 2016 Jun;7(3):E16.