Abstract：
OBJECTIVES:To evaluate and compare the obturation quality of mineral trioxide aggregate (MTA) and Biodentine placed with hand condensation or indirect ultrasonic activation technique in teeth models simulating perforating internal root resorption (IRR) using micro-computed tomographic (micro-CT) imaging. MATERIALS AND METHODS:Standardized models with perforating IRR cavities were created using 40 extracted single-rooted human teeth and randomly divided into four groups (n = 10). The specimens were obturated with either MTA or Biodentine and the placement technique applied was either hand condensation or indirect ultrasonic activation. Micro-CT scans were performed for the volumetric analysis of voids and filling materials in the resorption cavities and apical portion of the specimens. Data were analyzed using one-way analysis of variance and paired t test. RESULTS:No significant difference was observed between the groups in terms of the percentage volume of filling materials (p > 0.05). The apical portion of the specimens significantly presented less percentage volume of filling materials than the resorption cavities in each group (p < 0.05). CONCLUSIONS:No placement technique produced void-free fillings in teeth with perforating IRR. There was no significant difference between the obturation quality of Biodentine and MTA. The obturation quality in the apical portion of the root canals was inferior than that in the resorption cavities. CLINICAL RELEVANCE:The obturation of the apical region of teeth with perforating IRR is challenging irrespective of the material type and placement technique.
journal_name
Clin Oral Investigjournal_title
Clinical oral investigationsauthors
Küçükkaya Eren S,Aksel H,Askerbeyli Örs S,Serper A,Koçak Y,Ocak M,Çelik HHdoi
10.1007/s00784-018-2502-2subject
Has Abstractpub_date
2019-02-01 00:00:00pages
805-811issue
2eissn
1432-6981issn
1436-3771pii
10.1007/s00784-018-2502-2journal_volume
23pub_type
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