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Effect Of Cement Selection On Retention Of Zirconia And Lithium Disilicate Crowns, Chan-Te Huang
Effect Of Cement Selection On Retention Of Zirconia And Lithium Disilicate Crowns, Chan-Te Huang
All ETDs from UAB
Background: Ceramic crowns (lithium disilicate and zirconia) have become the most prescribed material for the restoration of anterior and posterior teeth due to the esthetic concerns of patients and the high cost of noble alloys. Different types of cements are used for luting crowns such as zinc phosphate, glass ionomer, resin modified glass ionomer (RMGI), resin cements and bioactive cements. Selection of different cements and bonding protocols for zirconia or lithium disilicate crowns to increase their bonding strength remains a clinical challenge for dentists. Objectives: To measure the retention strength of lithium disilicate and zirconia crowns cemented with different cements. …
The Retention Of Zirconia Crowns Luted With Resin And Rmgi Cements And The Effect Of Salivary Contamination, Stephen Liu
The Retention Of Zirconia Crowns Luted With Resin And Rmgi Cements And The Effect Of Salivary Contamination, Stephen Liu
All ETDs from UAB
Purpose: To measure retention of zirconia crowns bonded with resin and RMGI cements and the effect of salivary contamination following 10,000 cycles of thermocycling. Materials and Methods: 64 extracted human mandibular premolars were divided into eight groups (n = 8/group). The specimens in each group were prepared for Katana HT zirconia (eight groups) and one of four luting cements (one for each group): 3M ESPE RelyX Luting Plus RMGI, 3M ESPE Rely X Unicem 2 self-adhesive, Kuraray Panavia SA Universal self-adhesive, and 3M ESPE RelyX Ultimate dual cure resin cement with Scotchbond Universal. The roots of the selected teeth were …