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ORIGINAL ARTICLE
Year : 2022  |  Volume : 13  |  Issue : 1  |  Page : 17-21

A comparative evaluation of different saliva cleaning regimens on the shear bond strength of two different ceramics with resin cement: An in vitro study


Department of Prosthodontics, D A Pandu Memorial R V Dental College, Bengaluru, Karnataka, India

Correspondence Address:
Dr. Tanuj Kumar
Department of Prosthodontics, D A Pandu Memorial R V Dental College, Bengaluru, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/srmjrds.srmjrds_107_20

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Contamination of all-ceramic restorations with oral fluids during clinical try-in can have a detrimental effect on their clinical performance. Objective: The aim of this study was to compare the efficiency of four different saliva cleaning regimens on the shear bond strength (SBS) of lithium disilicate and zirconia with resin cement. Materials and Methods: Ten cubic samples of lithium disilicate pressable ceramic (Group A) and monolithic zirconia (Group B) were fabricated. Four surfaces from each sample were coated with saliva, washed with water, and dried. These surfaces were subsequently treated with four different cleaning protocols (water [A1, B1], isopropyl alcohol [A2, B2], sodium hypochlorite [A3, B3], and Ivoclean™ [A4, B4]) and bonded to composite cylinders using dual-cure resin cement. The specimens were then tested for SBS. Results: Group A, subgroup A4 had a significantly higher mean SBS compared to other groups, and for Group B, subgroup B4 had a significantly higher mean SBS compared to other groups. The mean difference in the SBS for subgroup A1 and B1 was −3.862 at P = 0.01; for subgroup A2 and B2, it was −4.164 at P = 0.03; for A3 and B3, it was −4.845 at P < 0.001; and for subgroup A4 and B4, it was −24.990 at P < 0.001. Conclusion: Monolithic zirconia specimens showed significantly more SBS compared to lithium disilicate specimens in all subgroups. The mean SBS was highest for surfaces cleaned using Ivoclean in both groups.


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