The effects of surface bonding on the compressive strength of different calcium hydroxide products
10.3969/j.issn.1001-3733.2017.06.009
- VernacularTitle:氢氧化钙表面粘接处理对其压缩强度的影响
- Author:
Ying XU
1
;
Jianling GUO
;
Yumei NIU
;
Lin ZHANG
;
Shuang PAN
Author Information
1. 哈尔滨医科大学附属第一医院口腔牙体牙髓科
- Keywords:
Calcium Hydroxide;
Light-curing;
Chemically-curing;
Compressive strength
- From:
Journal of Practical Stomatology
2017;33(6):754-757
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the effects of surface bonding on compressive strength of chemically-cured(Dycal) and light-cured (Calcimol LC) calcium hydroxide.Methods:32 experimental specimens were prepared and divided into 4 groups(n =8):Group A,Dcyal without surface bonding;Group B,Calcimol LC without surface bonding;Group C,Dycal with surface bonding;Group D,Calcimol LC with surface bonding.German Zwick universal electronic testing machine was used to test the compressive strength of the specimens.Results:The average compressive strength value of group A,B,C and D was (110.48 ± 19.9),(162.6 ±7.8),(136.8 ± 17.2) and (223 ± 31.1) MPa respectively.Among them,the compressive strength of Group D was the highest (P ＜ 0.05).Compressive strength value of group B was higher than that of group A (P ＜ 0.05).No statistical difference was detected between other groups.Conclusion:The compressive strength of Light-cured Calcium Hydroxide is higher than that of chemically-cured Calcium Hydroxide.Surface bonding treatment can improve the compressive strength of Light-cured Calcium,no apparent effects can be produced on chemicallycured Calcium Hydroxide.
