Physicochemical properties and antimicrobial activity of calcium hydroxide pastes in association with other compounds
Braz. j. oral sci
; 20: e212098, jan.-dez. 2021. ilus
Article
de En
| BBO, LILACS
| ID: biblio-1281101
Bibliothèque responsable:
BR218.1
ABSTRACT
Aim:
This study aimed to evaluate the pH, Ca2+ release, solubility, and antimicrobial activity of calcium hydroxide (Ca(OH)2) pastes in association with different substances.Methods:
Sixty acrylic teeth (n=10) were filled with pastes that associated Ca(OH)2 with the following substances benzalkonium chloride 5% (G1) and 50% (G2) both in propylene glycol, arnica glycolic extract (G3), green tea glycolic extract (G4), Calen/PMCC™ (G5), and Calen™ (G6). In the group G1 to G4 were used 1g of Ca(OH)2 powder with 0,8g of vehicle. pH and Ca2+ release was measured after 7, 15, and 30 days. For solubility, micro-CT was used immediately and at the periods of 7, 15, and 30 days. For the antimicrobial analysis, a biofilm of E. faecalis was induced in vitro on bovine dentin discs. Live/dead viability dye and confocal scanning microscopy were used.Results:
The highest pH values occurred on the first 7 days, and the G6, G1, G3, and G5 presented the highest pH values at this period (P <0.05). Ca2+ release was higher in all groups at 7 days, with the highest values observed in G1, G5, and G6. The volume of all pastes showed no significant difference in the intragroup analysis at 7 and 15 days (P <0.05). G1 and G2 showed the highest antimicrobial action (P <0.05). For the biovolume, there was difference between the G6 and the other groups (P >0.05) with G1 presenting the lowest values.Conclusion:
Benzalkonium chloride 5% increases the antimicrobial action of the Ca(OH2), without impairs physicochemical propertiesMots clés
Texte intégral:
1
Indice:
LILACS
Sujet Principal:
Produits d'obturation des canaux radiculaires
/
Hydroxyde de calcium
/
Biofilms
/
Phénomènes chimiques
/
Anti-infectieux
Type d'étude:
Risk_factors_studies
langue:
En
Texte intégral:
Braz. j. oral sci
Thème du journal:
ODONTOLOGIA
Année:
2021
Type:
Article