Physical and chemical properties of experimental mixture of mineral trioxide aggregate and glass ionomer cement.
10.5395/JKACD.2010.35.5.344
- Author:
Yu Na JEONG
1
;
So Young YANG
;
Bum Jun PARK
;
Yeong Joon PARK
;
Yun Chan HWANG
;
In Nam HWANG
;
Won Mann OH
Author Information
1. Department of Conservative Dentistry, Chonnam National University School of Dentistry, Gwangju, Korea. wmih@chonnam.ac.kr
- Publication Type:Original Article
- Keywords:
Compressive strength;
Glass-ionomer cement;
Mineral trioxide aggregate;
pH;
Setting time;
Solubility
- MeSH:
Acrylic Resins;
Aluminum Compounds;
Calcium Compounds;
Compressive Strength;
Drug Combinations;
Electrodes;
Glass;
Glass Ionomer Cements;
Glutamates;
Guanine;
Hydrogen-Ion Concentration;
Oxides;
Silicates;
Silicon Dioxide;
Solubility;
Pemetrexed
- From:Journal of Korean Academy of Conservative Dentistry
2010;35(5):344-352
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: The purpose of this study was to determine the setting time, compressive strength, solubility, and pH of mineral trioxide aggregate (MTA) mixed with glass ionomer cement (GIC) and to compare these properties with those of MTA, GIC, IRM, and SuperEBA. MATERIALS AND METHODS: Setting time, compressive strength, and solubility were determined according to the ISO 9917 or 6876 method. The pH of the test materials was determined using a pH meter with specified electrode for solid specimen. RESULTS: The setting time of MTA mixed with GIC was significantly shorter than that of MTA. Compressive strength of MTA mixed with GIC was significantly lower than that of other materials at all time points for 7 days. Solubility of 1 : 1 and 2 : 1 specimen from MTA mixed with GIC was significantly higher than that of other materials. Solubility of 1 : 2 specimen was similar to that of MTA. The pH of MTA mixed with GIC was 2-4 immediately after mixing and increased to 5-7 after 1 day. CONCLUSIONS: The setting time of MTA mixed with GIC was improved compared with MTA. However, other properties such as compressive strength and pH proved to be inferior to those of MTA. To be clinically feasible, further investigation is necessary to find the proper mixing ratio in order to improve the drawbacks of MTA without impairing the pre-existing advantages and to assess the biocompatibility.
