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Articles in Press, Accepted Manuscript , Available Online from 25 February 2019 
PDF (301 K)
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| Abstract |
| Introduction: Endodontic
treatment failure is caused by the leakage of microorganisms and
endotoxins, which leads to pathological lesions. Adequate seal of the
root canal is essential to preventing recontamination and ensuring the
long-term clinical success rate. Mineral trioxide aggregate (MTA) and
calcium-enriched mixture cement (CEM) are common types of cement with
adequate sealing capability in endodontics. The present study aimed to
compare the microleakage in the root canals filled with ProRoot MTA and
CEM cement using fluid filtration. Methods: This experimental, in-vitro
study was conducted on 46 root canals of extracted mandibular
premolars. After preparation and disinfection with 3% sodium
hypochlorite, the crowns were resected from the cervical region. The
teeth were randomly divided into two experimental groups of 20 based on
the tested materials (ProRoot MTA and CEM cement), as well as two
negative and positive control groups of three. All the samples were
instrumented and obturated using the step-back technique, and fluid
filtration was used to evaluate sealing ability and leakage inhibition.
Data analysis was performed using the Mann-Whitney U test (α=0.05). Results:
Mean microleakage in the ProRoot MTA and CEM cement was 2±0.79 and
3.02±1.38 µL/8 min, respectively. In addition, a significant difference
was observed between the two groups in this regard (P<0 .011="" strong="">Conclusion: |
According to the results, ProRoot MTA provided significantly less
microleakage compared to the CEM cement. Therefore, the sealing ability
of ProRoot MTA was higher than the CEM cement, which makes MTA a better
material than CEM cement for canal obturation.
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