Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (11): 1146-1149.DOI: 10.13701/j.cnki.kqyxyj.2016.11.008

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Effect of Cola Type Carbonated Beverage on Adhesive Strength of ZrO2 Restorations and Tooth

ZHANG Jing-yu, DENG Jiu-peng*, BAI Yu-hong, ZHOU Jian-ying, QI Yue-ming, QI Meng-chun   

  1. School of Stomatology, North China University of Science and Technology, Tangshan 063000, China
  • Received:2016-05-03 Online:2016-11-25 Published:2016-11-25

Abstract: Objective: To investigate the effect of carbonated drinks on the adhesive strength of all-ceramic restorations and tooth. Methods: Forty-five premolars were collected and were divided into 3 groups. Group A was 3M RelyX luting group, Group B was 3M ESPE RelyX Veneer group and Group C was PULPDENT embrace group. The teeth were all bonded to ZrO2 block with different cements respectively. After curing for four minutes, the specimens were soaked into saline. After curing for 5 minutes and 24 hours, five specimens of each group were soaked in cola for five minutes. For the next 3 months, immersed into cola 2 times a day with an interval of 12 hours and the samples were preserved in saline preservation for the rest of the time. In each group, the other five specimens were immersed in physiological saline as control. A shear strength test and SEM observation were performed after three months. Results: The group bond strength of Group A was weaker than those of Group B and Group C (P<0.05). There was no significant difference between Group B and Group C. In Group A, the bonding strength of 5 minutes group was lower than that in the group of 24 hours, and both were lower than that of the control group (P<0.05). In Group B, there was no difference between 5 minutes group and 24 hours group, and both were weaker than that of the control group. In Group C, the bonding strength of 5 minutes group was lower than that of the control group, but there was no difference between 24 hours group and the control group. Conclusion: The strength between the 3M RelyX luting and teeth were reduced when the specimens were immersed into cola, but the shear strength in 3M ESPE RelyX Veneer and PULPDENT Embrace was not significantly influenced by cola. With the extension of curing time, the effect of cola on 3M RelyX luting was gradually decreased. The influence of cola on 3M ESPE RelyX Veneer was limited. The influence of cola on PULPDENT embrace was the lowest after curing for 24 hours.

Key words: ZrO2 restorations, Adhesive, Shear bond strength, Carbonated drinks

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