Antimicrobial potential of medicaments used in healing process in dogs' teeth with apical periodontitis

Brazilian Dental Journal

Carlos Estrela²  Roberto Holland¹  Pedro Felício Estrada Bernabé¹  Valdir De Souza¹  Cyntia R.a. Estrela² 

[1] ,Federal University of Goiás Faculty of Dentistry Goiânia GO ,Brazil

关键词: calcium hydroxide;    sodium hypochlorite;    chlorhexidine;    vinegar;    antimicrobial activity;   

DOI  :  10.1590/S0103-64402004000300003

来源: SciELO

【 摘 要 】

The objective of this study was to evaluate the influence of irrigants on the antimicrobial potential of calcium hydroxide paste in dogs' teeth with apical periodontitis. Forty-eight premolar teeth of adult mongrel dogs had their root canals opened to the oral environment for 6 months. The root canals were prepared and treated with different irrigating solutions and intracanal medicaments, according to the following groups: 1) 2.5% sodium hypochlorite (NaOCl) + calcium hydroxide paste (CHP); 2) 2% chlorhexidine (CHX) + CHP; 3) vinegar + CHP; 4) vinegar + vinegar. In group 4, both the irrigating solution and intracanal medicament were vinegar, which was renewed every 7 days. Each sample was collected by using two paper points maintained in position for 1 min, and individually transported and immersed in 7 mL of Letheen broth (LB), followed by incubation at 37ºC for 48 h. Microbial growth was analyzed by two methods: turbidity of the culture medium and subculture on a specific nutrient broth (brain heart infusion). After 21 days, all experimental groups had microbial growth, however, in different percentages: group 1 - 30%; group 2 - 30%; group 3 - 40%; group 4 - 60%. All materials tested had antimicrobial potential; however, the influence of calcium hydroxide paste on the control of microorganisms must be remembered.

【 授权许可】

CC BY   
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