Effect of intracanal medications on the interfacial properties of reparative cements
Pereira Andrea Cardoso, Pallone Mariana Valerio, Marciano Marina Angelica, Cortellazzi Karine Laura, Frozoni Marcos, Gomes Brenda P. F. A., de Almeida Jose Flavio Affonso, Soares Adriana de Jesus,
소속 상세정보
( Pereira Andrea Cardoso ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
( Pallone Mariana Valerio ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
( Marciano Marina Angelica ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
( Cortellazzi Karine Laura ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Social Dentistry
( Frozoni Marcos ) - Sao Leopoldo Mandic Dental School Department of Endodontics
( Gomes Brenda P. F. A. ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
( de Almeida Jose Flavio Affonso ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
( Soares Adriana de Jesus ) - University of Campinas - UNICAMP Piracicaba Dental School Department of Restorative Dentistry
Abstract
Objectives: The purpose of the present study was to evaluate the effect of calcium hydroxide with 2% chlorhexidine gel (HCX) or distilled water (HCA) compared to triple antibiotic paste (TAP) on push-out bond strength and the cement/dentin interface in canals sealed with White MTA Angelus (WMTA) or Biodentine (BD).
Materials and Methods: A total of 70 extracted human lower premolars were endodontically prepared and randomly divided into 4 groups according to the intracanal medication, as follows: group 1, HCX; group 2, TAP; group 3, HCA; and group 4, control (without intracanal medication). After 7 days, the medications were removed and the cervical third of the specimens was sectioned into five 1-mm sections. The sections were then sealed with WMTA or BD as a reparative material. After 7 days in 100% humidity, a push-out bond strength test was performed. Elemental analysis was performed at the interface, using energy-dispersive spectroscopy. The data were statistically analyzed using analysis of variance and the Tukey test (p < 0.05).
Results: BD presented a higher bond strength than WMTA (p < 0.05). BD or WMTA in canals treated with calcium hydroxide intracanal medications had the highest bond strength values, with a statistically significant difference compared to TAP in the WMTA group (p < 0.05). There were small amounts of phosphorus in samples exposed to triple antibiotic paste, regardless of the coronal sealing.
Conclusions: The use of intracanal medications did not affect the bond strength of WMTA and BD, except when TAP was used with WMTA.
키워드
Calcium hydroxide; Chlorhexidine; Endodontics
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