Micro‐CT analysis of the marginal adaptation and porosity associated with ultrasonic activation of coronally placed tricalcium silicate‐based cements

This study aimed to evaluate the effect of ultrasonic activation on coronal marginal adaptation and microporosity of tricalcium silicate–based materials. Sixty freshly extracted human maxillary lateral incisor teeth were instrumented with ProTaper Next X2 files followed by Peeso‐Reamer burs, sizes 1...

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Bibliographic Details
Published in:Australian endodontic journal 2020-12, Vol.46 (3), p.323-329
Main Authors: Dinçer, Asiye Nur, Güneşer, Mehmet Burak, Sisli, Selen Nihal
Format: Article
Language:English
Subjects:
Aluminum Compounds
Calcium Compounds
Dental cement
Dental enamel
Dentistry
Drug Combinations
Endodontics
Humans
Micro‐CT
Oxides
Porosity
regenerative endodontics
Root Canal Filling Materials
Silicates
tricalcium silicate
Ultrasonics
Volumetric analysis
X-Ray Microtomography
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Summary:This study aimed to evaluate the effect of ultrasonic activation on coronal marginal adaptation and microporosity of tricalcium silicate–based materials. Sixty freshly extracted human maxillary lateral incisor teeth were instrumented with ProTaper Next X2 files followed by Peeso‐Reamer burs, sizes 1 to 5. The specimens were randomly divided into six groups (n = 10): Group 1, Biodentine + hand condensation; Group 2, Biodentine + ultrasonic activation; Group 3, NeoMTA Plus + hand condensation; Group 4, NeoMTA Plus + ultrasonic activation; Group 5, ProRoot WMTA + hand condensation; and Group 6, ProRoot WMTA + ultrasonic activation. All tested materials were mixed mechanically and placed 2 mm underneath the cement–enamel junction by hand condensation or indirect ultrasonic activation. Volumetric analysis of the voids between the dentine wall and coronal barrier material and the porosity within the material was evaluated with micro‐CT. There was no significant difference in marginal adaptation among the six groups (P > 0.05). Ultrasonic activation favoured a reduced microporosity in Biodentine Group (P 
ISSN:1329-1947
1747-4477
DOI:10.1111/aej.12422