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Does Adding Various Accelerators to Mineral Trioxide Aggregate Have a Negatively Effect on Push-Out Bond Strength?
- Source :
-
Medical principles and practice : international journal of the Kuwait University, Health Science Centre [Med Princ Pract] 2019; Vol. 28 (1), pp. 36-40. Date of Electronic Publication: 2018 Sep 26. - Publication Year :
- 2019
-
Abstract
- Objective: This study compares the effect of the white mineral trioxide aggregate (WMTA) accelerators, including disodium hydrogen orthophosphate (Na2HPO4; 2.5 wt%), calcium chloride (CaCl2; 5 and 10 wt%), and KY jelly, on the push-out bond strength of WMTA. The null hypothesis was that the WMTA accelerators would not affect the push-out bond strength of WMTA.<br />Materials and Methods: Slices (2-mm-thick) were obtained from 75 human mandibular molar distal roots. The slices were enlarged up to size 6 Gates-Glidden burs to obtain a 1.5-mm canal diameter. The slices were randomly divided into 4 experimental groups and a control group (n = 15 in each group). Freshly prepared WMTA mixture was placed into the root slices and stored at 37°C in a 100% humidified atmosphere for 60 days. The force required to dislodge the WMTA cement from the root slice was determined using a universal testing machine. The push-out bond strength was calculated.<br />Results: Push- out bond strength of 5- and 10-wt% CaCl2, and 2.5-wt% Na2HPO4 WMTA groups was significantly lower than in the KY-jelly and control groups (p < 0.05). The mean push-out bond strength of KY jelly was lower than in the control group but not statistically significant.<br />Conclusion: The addition of KY jelly to WMTA did not have an adverse effect on the push-out bond strength of WMTA, in contrast to the other accelerators, including Na2HPO4 and CaCl2, which reduced the push-out bond strength.<br /> (© 2018 The Author(s) Published by S. Karger AG, Basel.)
- Subjects :
- Cellulose pharmacology
Dental Stress Analysis
Drug Combinations
Humans
Random Allocation
Tooth Root
Aluminum Compounds pharmacology
Calcium Chloride pharmacology
Calcium Compounds pharmacology
Cellulose analogs & derivatives
Dental Bonding methods
Glycerol pharmacology
Oxides pharmacology
Phosphates pharmacology
Propylene Glycols pharmacology
Silicates pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1423-0151
- Volume :
- 28
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Medical principles and practice : international journal of the Kuwait University, Health Science Centre
- Publication Type :
- Academic Journal
- Accession number :
- 30257258
- Full Text :
- https://doi.org/10.1159/000494057