In vitro evaluation of apical microleakage using different root-end filling materials

Valera, Márcia Carneiro; Camargo, Carlos Henrique; Carvalho, António P. O.; Gama, Eduardo Ramalho Pereira

doi:10.1590/s1678-77572006000100010

Cited by 18 publications

(14 citation statements)

References 16 publications

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“…Sealapex + zinc oxide and ZOE gave the best results in microbial leakage prevention as root-end fillings compared with MTA and Portland cement (both gray and white presentations) at all time intervals. In other investigation, using dye penetration in extracted human teeth, Valera et al (22) observed no statistical differences among the levels of the marginal infiltration of Sealapex + zinc oxide, MTA and Portland cement. MTA, Portland cement and Sealapex have been shown to induce hard tissue deposition in previous studies (9,10,14,23).…”

Section: Discussionmentioning

confidence: 84%

Microbial leakage of MTA, Portland cement, Sealapex and zinc oxide-eugenol as root-end filling materials

Estrela

Estrada-Bernabé²,

Decúrcio³

et al. 2011

Med Oral

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Objective: The aim of this study was to compare the microbial leakage of mineral trioxide aggregate (MTA), Portland cement (PC), Sealapex and zinc oxide-eugenol (ZOE) as root-end filling materials. Study design: An in vitro microbial leakage test (MLT) with a split chamber was used in this study. A mixture of facultative bacteria and one yeast (S. aureus + E. faecalis + P. aeruginosa + B. subtilis + C. albicans) was placed in the upper chamber and it could only reach the lower chamber containing Brain Heart Infusion broth by way of leakage through the root-end filling. Microbial leakage was observed daily for 60 days. Sixty maxillary anterior human teeth were randomly assigned to different groups -MTA and PC (gray and white), Sealapex + zinc oxide and ZOE, control groups and subgroups to evaluate the influence of EDTA for smear layer removal. These materials were further evaluated by an agar diffusion test (ADT) to verify their antimicrobial efficacy. Data were analyzed statistically by Kruskal-Wallis and Mann-Whitney test. Results: In the MLT, Sealapex + zinc oxide and ZOE did not show evidence of microbial leakage over the 60-day experimental period. The other materials showed leakage from the 15th day. The presence of smear layer influenced microbial leakage. Microbial inhibition zones were not observed in all samples tested by ADT. Conclusion: Sealapex + zinc oxide and ZOE did not show microbial leakage over the experimental period, whereas it was verified within 15 to 45 days in MTA and Portland cement.

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Section: Discussionmentioning

confidence: 84%

Microbial leakage of MTA, Portland cement, Sealapex and zinc oxide-eugenol as root-end filling materials

Estrela

Estrada-Bernabé²,

Decúrcio³

et al. 2011

Med Oral

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“…Inadequate filling and obturation might result in penetration of fluids into the voids, inducing a periapical chronic inflammatory reaction and interfering the treatment success (16). …”

Section: Resultsmentioning

confidence: 99%

Importance and methodologies of endodontic microleakage studies: A systematic review

Jafari

2017

J Clin Exp Dent

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IntroductionIt is very important to obtain a tight seal in obturated root canal, making it necessary to conduct clinical or laboratory studies on the sealability of endodontic materials. Different methodologies have been historically used to assess microleakage of different endodontic materials. The aim of the present study was to comprehensively review different material testing methods used in microleakage studies, their interpretation and importance in endodontic literature.Material and MethodsA systematic search was conducted in Medline, Cochrane, and Web of Science databases. In addition, the reference lists of review articles on the topic were searched. No language restriction was applied. Two independent reviewers screened the article.ResultsMicroleakage is considered the single most important risk factor responsible for apical periodontitis. Dye penetration, dye diffusion, bacterial and endototoxin infiltration, fluid filtration, glucose, caffeine and protein infiltration, radioisotope penetration, animal studies, and electrochemical or 3D evaluation are different methodologies used to assess dental leakage. 91 out of 177 articles in the primary search were included in the study. These methods are very divergent in their viewpoints; that is why their results cannot be easily compared. It is necessary to standardize microleakage detection methods in order to more correctly evaluate the phenomena that are found between the root canal wall and the root canal filling materials.ConclusionsAll the methods are useful if studies are performed strictly with large sample sizes and proper control groups and if the technique can be standardized. Furthermore, more evaluations of the reliability of the methods are strongly recommended. Key words:Dental leakage, review, root canal, material testing methods, data interpretation.

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“…This was further supported by Torabinejad et al .,[12] who concluded that hydration of the powder might have resulted in formation of the colloidal gel that solidified to a hard structure in less than 4 h. Least microleakage was shown by MTA in the present study, which is also in accordance to some other study conducted in Brazil. [15]…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of microleakage of various retrograde filling materials: An in vitro study

et al. 2013

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Objective:The present study is envisaged to evaluate and compare the microleakage of mineral trioxide aggregate (MTA) with commonly used retrograde filling materials, like light-cured composite with dentin-bonding agents, light-cured glass ionomer cement (LC GIC) and resin-modified zinc oxide eugenol.Materials and Methods:Ninety freshly extracted non-carious single-rooted human anterior teeth were used in the study. They were randomly divided into four experimental groups and two control groups of 15 each. Following the biomechanical preparation, all teeth were obturated and then the apices of the obturated teeth were resected by removing 3 mm of each apex at 90° to the long axis of the tooth with a straight fissure bur in a high-speed air-rotor handpiece with water coolant. A 3-mm-deep root end cavity was prepared and the root end fillings were placed as per the manufacturer's instructions and according to the groups divided. The samples were then immersed in 1% methylene blue at room temperature for 72 h, 96 h and 1 week and the dye penetration was measured.Results and Conclusion:All the four materials used in the study showed some microleakage throughout the experimental period. The sealing ability in terms of microleakage can be summarized as: MTA > Composite resin with dentin bonding agent > LC GIC > Resin modified zinc oxide eugenol.

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In vitro evaluation of apical microleakage using different root-end filling materials

Cited by 18 publications

References 16 publications

Microbial leakage of MTA, Portland cement, Sealapex and zinc oxide-eugenol as root-end filling materials

Microbial leakage of MTA, Portland cement, Sealapex and zinc oxide-eugenol as root-end filling materials

Importance and methodologies of endodontic microleakage studies: A systematic review

Comparative evaluation of microleakage of various retrograde filling materials: An in vitro study

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