Effect of intracanal medications on the interfacial properties of reparative cements
- Author:
Andrea Cardoso PEREIRA
1
;
Mariana Valerio PALLONE
;
Marina Angélica MARCIANO
;
Karine Laura CORTELLAZZI
;
Marcos FROZONI
;
Brenda P F A GOMES
;
José Flávio Affonso de ALMEIDA
;
Adriana de Jesus SOARES
Author Information
- Publication Type:Original Article
- Keywords: Calcium hydroxide; Chlorhexidine; Endodontics
- MeSH: Bicuspid; Calcium Hydroxide; Chlorhexidine; Endodontics; Humans; Humidity; Pemetrexed; Phosphorus; Spectrum Analysis; Water
- From:Restorative Dentistry & Endodontics 2019;44(2):e21-
- CountryRepublic of Korea
- Language:English
- 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.
