Abstract
Aim.This study aims to identify the efficacy of different intracanal medication formulations existing in end of endodontic therapy’s failure, and related to strains of Enterococcus faecalis, Pseudomonas aeruginosa, and Staphylococcus aureus in Petri plates. Materials and methods. It was used diffusion test in agar where each Petri plate with the inoculated bacteria. Perforations of approximately 4 mm deep by 5 mm in diameter were made to prepare where the intracanal drug (25 µl) to be tested. The diameters of the bacterial inhibition zones were measured and registered to each tested medication at the period of 24 hours, 48 hours, 7 and 14 days respectively. Results. All the medications promoted inhibition halos. The inhibition halos were represented in mm. A higher elimination of micro-organisms can be significantly achieved through the association of different substances in the formulation of an intra canal medication, with emphasis to Ca (OH)2 combined with nitrofurazone and magnesium oxide respectively. Conclusion. Cleaning and shaping of the root canal system associated with the chemical combination of Ca (OH) 2 with antiseptic pastes or solutions considerably reduce the bacterial load.
Highlights
Predictable results are expected after completing a root canal treatment (RCT) following scientific protocols that guarantee an excellent success rate [1]
The bacteria related to endodontic pathologies are anaerobic, and clinicians need to state the specific approach for microbial control and eradication during the RCT [4,5]
Materials and methods The intracanal medications include A) Ca (OH)2 powder mixed with glycerin in the 2:1 proportion; B) Ca (OH)2 powder mixed with Nitrofurazone in 2:1 proportion; C) Ca (OH)2 powder mixed with chlorhexidine gluconate 2% in 2:1 proportion, D) Magnesium oxide powder mixed with Ca (OH)2 powder mixed with glycerin in 1:1:1 proportion, and E) Glycerin
Summary
Predictable results are expected after completing a root canal treatment (RCT) following scientific protocols that guarantee an excellent success rate [1]. RCT is well filled with the absence of clinical signs of pain but histologically with apical rarefaction [2]. For years microorganisms are the etiologic factor of periapical inflammation [3]. The bacteria related to endodontic pathologies are anaerobic, and clinicians need to state the specific approach for microbial control and eradication during the RCT [4,5]. Some bacteria are resistant to antimicrobial management and survive after the chemo-mechanical instrumentation and root canal (RC) medication, typifying a constant infection [4,6]. Bacteria present in persistent periapical pathology are identified by a microorganism's association create an infection evolution [7]. Negative cultures can ensure the Auctores Publishing – Volume 8(3)-136 www.auctoresonline.org
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