Effect of root canal filling materials containing calcium hydroxide on the alkalinity of root dentin

The primary goal of endodontic treatment in primary teeth is to eliminate infection, and to retain the tooth in a functional state until their normal exfoliation time without endangering the permanent dentition or the general health of the child. The complexity of the pulp canal system in primary teeth presents a discerning problem for chemo-mechanical preparation. One of the factors determining the success of endodontic treatment in infected primary teeth is the sealing material that should encompass among other factors a potent bactericidal effect and the capacity to resorb along with the roots of primary teeth. This study evaluated the antimicrobial effectiveness of 5 root canal filling materials and a negative control agent against 23 strains of bacteria isolated from infected root canals of primary molar teeth and 3 non standard bacterial strains using agar diffusion assay. The materials were Zinc oxide and Eugenol (ZOE), Zinc oxide-Eugenol and Formocresol (ZOE+FC), Calcium hydroxide and sterile water (CAOH+H2O), Zinc oxide and Camphorated phenol (ZO+CP), Calcium hydroxide and Iodoform (Metapex) and Vaseline (Control). All the materials except Vaseline showed varied antimicrobial activity against the test bacteria. The zones of inhibition were ranked into 4 inhibition categories based on the proportional distribution of the data. All the 26 bacterial isolates were classified under 4 groups based on Aerobic/Anaerobic and Gram positive/Gram negative. Statistical analysis was carried out to compare the antimicrobial effectiveness between materials tested with each of the bacterial groupings. ZOE+FC produced strong inhibition against most bacteria when compared to ZOE, ZO+CP and CAOH+H2O. Metapex and Vaseline were found to be non inhibitory

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Comparative Evaluation of Antimicrobial Efficacy of Various Root Canal Filling Materials Along with Aloevera Used in Primary Teeth: A Microbiological Study

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.37.3.j62u53q2300484x5 ◽

2013 ◽

Vol 37 (3) ◽

pp. 257-262 ◽

Cited By ~ 8

Author(s):

R Kriplani ◽

N Thosar ◽

M S Baliga ◽

P Kulkarni ◽

N Shah ◽

...

Keyword(s):

Antimicrobial Activity ◽

Zinc Oxide ◽

Calcium Hydroxide ◽

Root Canal ◽

Sterile Water ◽

Root Canal Filling ◽

Primary Molar ◽

Filling Materials ◽

Root Canal Filling Materials ◽

Antimicrobial Effectiveness

Aim: this study was conducted to evaluate the antimicrobial effectiveness of 6 root canal filling materials and a negative control agent against 18 strains of bacteria isolated from infected root canals of primary molar teeth using agar diffusion assay. Materials: Aloevera with sterile water, Zinc oxide and Eugenol, Zinc oxide-Eugenol with aloevera, Calcium hydroxide and sterile water, Calcium hydroxide with sterile water and aloevera, Calcium hydroxide and Iodoform (Metapex) and Vaseline (Control). MIC and MBC of aloevera was calculated. Results: All materials except Vaseline showed varied antimicrobial activity against the test bacterias. The zones of inhibition were ranked into 4 inhibition categories based on the proportional distribution of the data. All the 18 bacterial isolates were classified under 2 groups based on Gram positive and Gram negative aerobes. Statistical analysis was carried out to compare the antimicrobial effectiveness between materials tested with each of the bacterial groupings. Conclusion: Aloevera + Sterile Water was found to have superior antimicrobial activity against most of the microorganisms followed by ZOE + Aloevera, calcium hydroxide + Aloevera, ZOE, calcium hydroxide, Metapex in the descending order and Vaseline showed no inhibition.

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Calcium Hydroxide And Zinc Oxide Eugenol As Root Canal Filling Materials In Primary Molars: A Comparative Study

Australian Endodontic Journal ◽

10.1111/j.1747-4477.2005.tb00318.x ◽

2005 ◽

Vol 31 (3) ◽

pp. 114-119 ◽

Cited By ~ 2

Author(s):

S. G. Damle ◽

U. M. Nadkarni

Keyword(s):

Zinc Oxide ◽

Comparative Study ◽

Calcium Hydroxide ◽

Root Canal ◽

Primary Molars ◽

Root Canal Filling ◽

Filling Materials ◽

Zinc Oxide Eugenol ◽

Root Canal Filling Materials

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Comparative Evaluation of Bactericidal Potential of Four Root Canal Filling Materials against Microflora of Infected Non -Vital Primary Teeth

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.35.1.u57p4500360g2752 ◽

2010 ◽

Vol 35 (1) ◽

pp. 23-29 ◽

Cited By ~ 7

Author(s):

Priya Harini ◽

Sham Bhat ◽

K Sundeep Hegde

Keyword(s):

Calcium Hydroxide ◽

Root Canal ◽

Primary Teeth ◽

Microbiological Analysis ◽

Filling Material ◽

Root Canal Filling ◽

Posterior Teeth ◽

Root Canals ◽

Filling Materials ◽

Root Canal Filling Materials

Background and objectives: Since complete debridement of the root canals of the primary teeth is not practically possible due to the highly variable root canal anatomy, success of the endodontic therapy depends partly on the use of antibacterial irrigating agents and root canal filling materials. Recent literature indicates that anaerobes comprise a majority of the bacteria in necrotic root canals of primary teeth. The study determined the antibacterial effectiveness of four root canal filling materials namely Calcium hydroxide,Zinc oxide eugenol, Vitapex and Metapex against microbial specimens obtained directly from necrotic root canals of primary teeth. Method: Microbial specimens were collected using sterile paper points, from 15 primary maxillary and mandibular posterior teeth of randomly selected children in the age group of 4-10 years with infected non vital primary teeth, requiring pulpectomy procedure. The microbial specimens collected were subjected to microbiological analysis and the antimicrobial potential of root canal filling materials were tested using Agar diffusion technique. Results: were statistically analyzed using one-way ANOVA. Facultative/Aerobic organisms were isolated in all the cases, anaerobic organisms were isolated in 80% of the cases, and Candida albicans was isolated in 1 case. ZOE showed superior inhibitory activity against most of the organisms isolated followed by Vitapex, Calcium hydroxide and Metapex in descending order.Conclusion: Our data may be useful as a guide for relative antimicrobial effectiveness or non-effectiveness of the materials employed. In vivo studies are required to state the specific antimicrobial activity and merits and demerits of any of the test filling material.

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Endoflas, Zinc Oxide Eugenol and Metapex as Root Canal Filling Materials in Primary Molars—A Comparative Clinical Study

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.35.4.1377v06621143233 ◽

2011 ◽

Vol 35 (4) ◽

pp. 365-370 ◽

Cited By ~ 15

Author(s):

Priya Subramaniam ◽

Kanupriya Gilhotra

Keyword(s):

Zinc Oxide ◽

Calcium Hydroxide ◽

Root Canal ◽

Primary Molars ◽

Filling Material ◽

Root Canal Filling ◽

Filling Materials ◽

Zinc Oxide Eugenol ◽

Root Canal Filling Materials ◽

Significant Difference

Several materials have been used to fill root canals of primary teeth. Traditionally, zinc oxide eugenol was used for the purpose, until the introduction of calcium hydroxide and iodoform based materials. Another root canal filling material that contains zinc oxide eugenol, calcium hydroxide and iodoform is commercially available as Endoflas. The aim of the study was to evaluate and compare the efficacy of Endoflas, zinc oxide eugenol and Metapex as root canal filling materials. Method: A total of forty-five primary molars from children aged 5-9 years were selected for a one stage pulpectomy procedure. Teeth were randomly divided into three groups of fifteen teeth each based on the type of root canal filling material used. All the molars were evaluated clinically and radiographically at regular intervals of 3, 6, 12 and 18 months. The observations were tabulated and statistically analyzed. Results: Endoflas and zinc oxide eugenol showed 93.3% success, whereas a higher percentage of success was observed with Metapex (100%). Overfilling and voids were more commonly seen in teeth filled with Metapex. Conclusion: There was no significant difference between the three root canal filling materials.

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