scholarly journals The Antimicrobial Efficacy of four different Intracanal Medication to Microorganisms existing in the Failure of Endodontic Therapy: An in vitro study

2021 ◽  
Vol 8 (3) ◽  
pp. 01-04
Author(s):  
Jorge Paredes Vieyra
Keyword(s):  
Bacterial Load ◽  
In Vitro Study ◽  
Diffusion Test ◽  
Chemical Combination ◽  
Root Canal System ◽  
Inhibition Zones ◽  
Petri Plate ◽  
Micro Organisms ◽  
And Staphylococcus Aureus

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.

scholarly journals The Antimicrobial Efficacy of four different Intracanal Medication to Microorganisms existing in the Failure of Endodontic Therapy: An in vitro study

2021 ◽  
Vol 8 (3) ◽  
pp. 01-04
Author(s):  
Jorge Paredes Vieyra ◽  
Fabian Ocampo Acosta ◽  
Francisco Javier Jiménez Enriquez ◽  
Alan Hidalgo Vargas ◽  
Ignacio Manriquez Quintana ◽  
...  
Keyword(s):  
Bacterial Load ◽  
In Vitro Study ◽  
Diffusion Test ◽  
Chemical Combination ◽  
Root Canal System ◽  
Inhibition Zones ◽  
Petri Plate ◽  
Micro Organisms ◽  
And Staphylococcus Aureus

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.

The Antimicrobial Efficacy of four different Intracanal Medication to Microorganisms existing in the Failure of Endodontic Therapy: An in vitro study

2021 ◽  
Vol 8 (3) ◽  
pp. 01-04
Author(s):  
Jorge Vieyra
Keyword(s):  
Bacterial Load ◽  
In Vitro Study ◽  
Diffusion Test ◽  
Chemical Combination ◽  
Root Canal System ◽  
Inhibition Zones ◽  
Petri Plate ◽  
Micro Organisms ◽  
And Staphylococcus Aureus

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.

scholarly journals Comparative Antimicrobiotic Efficacy Test of Triple Antibiotic Paste, Double Antibiotic Paste with Fungicide and Calcium Hydroxide with Chitosan as Vehicle against Enterococcus faecalis: An In vitro Study

2021 ◽  
pp. 13-22
Author(s):  
Sudhakar Naidu ◽  
Mahendravarma Nadimpalli ◽  
Gowtam Dev Dondapati ◽  
Thangi Sowjanya ◽  
Srivalli Podili ◽  
...  
Keyword(s):  
Growth Inhibition ◽  
Calcium Hydroxide ◽  
Enterococcus Faecalis ◽  
In Vitro Study ◽  
Diffusion Test ◽  
Triple Antibiotic Paste ◽  
Antibiotic Powder ◽  
Inhibition Zones ◽  
Agar Well Diffusion Assay

Introduction: This present research aimed to assess the in vitro antimicrobial efficacy of triple antibiotic paste and calcium hydroxide with two different vehicles against Enterococcus faecalis (E. faecalis). Materials and Methodology: An agar well diffusion assay was used to determine the experimental medicaments' efficacy against E. faecalis. Medicaments were divided into six groups, which includes Triple antibiotic powder (TAP) with saline or chitosan, Double antibiotic powder with fungicide (DAP 1) with saline or Chitosan, and calcium hydroxide with saline or Chitosan. These medicines were tested in an agar well diffusion test for three days, i.e., 1,4,7 days. The diameters of growth inhibition zones were recorded and compared for each group were tested in an agar well diffusion test for three days, i.e., 1,4,7 days. The diameters of growth inhibition zones were recorded and compared for each group. These medicaments were evaluated for three days an agar well diffusion test, i.e., on 1,4,7 days. The inhibition zones diameters for each group were recorded and compared — the differences between groups analyzed by Kruskal-Wallis and Mann-Whitney U tests. Results: The largest inhibition zones were observed for the triple antibiotic powder with chitosan and the smallest for Ca(OH)2 with saline. As days progress, they produced lesser antibacterial effects in all groups. Conclusion: Triple antibiotic paste and Chitosan were more effective in eliminating microorganisms than calcium hydroxide and DAP 1.

scholarly journals Comparative analysis of the antimicrobial potential of different intra-canal medication to microorganisms present in the failure of the endodontic therapy: In vitro study

2020 ◽  
Vol 4 (1) ◽  
pp. 01-06
Author(s):  
Marília Alves
Keyword(s):  
In Vitro Study ◽  
Antimicrobial Treatment ◽  
Etiologic Factor ◽  
New Approach ◽  
Root Canals ◽  
Antimicrobial Potential ◽  
Mechanical Preparation ◽  
Petri Plate ◽  
Micro Organisms

Microorganisms that infect the root canals system are the main etiologic factor of the periapical pathologies. Some microorganisms are resistant to the antimicrobial treatment and may survive in the root canal after the chemical mechanical preparation and intra-canal medication, characterizing a persistent infection. In cases of failure of the endodontic treatment, a new approach may be done using additional measures that involve this infectious process control through the elimination or maximum reduction of microorganisms. Therefore, this article aims to evaluate the antimicrobial potential of different formulations of intra-canal medication compared to strains of Enterococcus faecalis, Pseudomonas aeruginosa and Staphylococcus aureus in Petri plates. It was used diffusion test in agar where each Petri plate with the inoculated bacteria presented 5 wells that were filled with each medication. The diameters of the bacterial inhibition zones were measured and registered to each tested medication at the period of 24 hours, 48 hours, 1 week and 2 weeks. All the medications promoted inhibition halos; however, 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 HPG and Ca(OH)2 + CHX.

scholarly journals Pulmonary Damage and Bacterial Load in Assessment of the Efficacy of Simulated Human Treatment-Like Amoxicillin (2,000 Milligrams) Therapy of Experimental Pneumococcal Pneumonia Caused by Strains for Which Amoxicillin MICs Differ

2005 ◽  
Vol 49 (3) ◽  
pp. 996-1001 ◽  
Author(s):  
Matilde Gracia ◽  
Carmina Martínez-Marín ◽  
Lorena Huelves ◽  
Maria J. Giménez ◽  
Lorenzo Aguilar ◽  
...  
Keyword(s):  
Bacterial Load ◽  
In Vitro Study ◽  
In Vivo Model ◽  
Lung Weight ◽  
End Points ◽  
Dosing Interval ◽  
Pulmonary Damage ◽  
Amoxicillin Clavulanate

ABSTRACT An experimental rat pneumonia model using two amoxicillin-susceptible (MICs, ≤0.015 and 2 μg/ml) and two non-amoxicillin-susceptible (MIC, 4 μg/ml) Streptococcus pneumoniae strains was developed for testing the efficacy of amoxicillin administered to simulate human serum kinetics after treatment with amoxicillin-clavulanate (2,000 and 125 mg, respectively, twice a day, for 2.5 days). The end points for efficacy were reductions in bacterial loads in the lungs and reductions in levels of pulmonary damage. For the amoxicillin-susceptible strains (serotypes 23F and 14), a decrease greater than 4.5 log10 CFU/pair of lungs was obtained, and the time for which the serum antibiotic concentration (SAC) was higher than the MIC (T S A C > MIC) was greater than 60% of the dosing interval. For non-amoxicillin-susceptible strains, the decrease in bacterial load was 1.34 to 1.75 log10 CFU/pair of lungs, with a T S A C > MIC of 46.7% of the dosing interval. An in vitro study showed that serotype 9V non-amoxicillin-susceptible strains behaved as tolerant-like to concentrations similar to those in the in vivo model. The high and maintained SACs (T S A C > MIC, >46% for all strains) significantly diminished lung injury (affected area of the lung and lung weight), compared to that in controls, by all strains, regardless of the MIC, bactericidal behavior in in vitro killing curves, or the serotype of the infecting strain. These results show the importance of host therapeutic end points in the evaluation of antibiotic efficacy. The antibiotic was more efficacious, for one nonsusceptible strain tested, when the treatment was started early (1 h postinoculation [p.i.]) than when treatment was delayed (24 h p.i.).

scholarly journals Effectiveness of high-power diode laser associated to chemical auxiliary substance on decontamination of root canal system infected with Enterococcus faecalis – an in vitro study

2014 ◽  
Vol 18 (3) ◽  
Author(s):  
Matheus Albino Souza ◽  
Tiago Lange dos Santos ◽  
Alessandra Kuhn Dall’Magro ◽  
Fabiana Vieira Vier-Peliser ◽  
Luciana Ruschel dos Santos ◽  
...  
Keyword(s):  
Enterococcus Faecalis ◽  
High Power ◽  
Root Canal ◽  
In Vitro Study ◽  
Canal System ◽  
Auxiliary Substance ◽  
Root Canal System ◽  
Power Diode ◽  
High Power Diode Laser
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