| Autor: |
Abdel Rahman Hashem, Ahmed, Mahmoud Marzouk, Abeer, Maged El Far, Hebatallah |
| Předmět: |
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| Zdroj: |
Endodontic Practice Today; 2012, Vol. 6 Issue 4, p277-282, 6p, 1 Color Photograph, 1 Graph |
| Abstrakt: |
Aim: The purpose of the present study was to assess the push-out bond strength of three furcation perforation repair materials: MTA, BioAggregate and IRM. Materials and methods: Forty-five extracted human mandibular first molars were used in this study. Their roots were amputated 3 mm below the furcation and standardised access cavities were prepared in all molars. Furcation perforations of 1 mm diameter were performed between mesial and distal roots. The molars were divided into three groups (n = 15) according to the type of perforation repair material used. Group I was repaired with ProRoot MTA, group II was repaired with BioAggregate and group III was repaired with IRM. After setting, the samples were mounted in a loading fixture and each repair material was subjected, in an apical-coronal direction, to a compressive load with a load cell of 5 KN at a cross head speed of 1 mm/min with a 0.8 mm diameter plugger via a universal testing machine for the push-out bond strength measurement. Results: There was no statistically significant difference between the push-out bond strength values of the three tested materials (P > 0.05). Conclusions: It can be concluded that BioAggregate showed push-out bond strengths comparable to other commonly used root repair materials in small size cavities. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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