Study on root canal closure with retrofilling materials in apicoectomy. Comparison and investigation by dye penetrating test using 2% fuchsin dye solution.

4-META/MMA-TBB resin has shown good biocompatibility and remarkable adhesion to dentin. It seems to be suitable for use in periodontal tissues for retrograde root sealing and treatment of vertically fractured roots. For an adhesive resin to be useful clinically, it must bond not only to the dentin but also to the cementum. The purpose of this study was to evaluate the long-term adhesion durability of 4-META/MMA-TBB resin to cementum kept in water at 37•Ž. Bovine root cementum and dentin surfaces were treated with 10-3 solution before 4-META/MMA-TBB resin was applied on treated surfaces. The micro-tensile bond strength (ƒÊTBS) decreased during the first two months; dye leakage value increased during the first four months and stabilized thereafter. No significant differences in adhesion durability were recognized between the dentin and cementum.

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Durability of Adhesion between 4-META/MMA-TBB Resin and Cementum

Tanaka

Sugaya

Kawanami

2004

Dental Materials Journal

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Long-term Durability of Root-end Sealing with 4-META/MMA-TBB Resin

Tanaka

Sugaya

Tanaka

et al. 2004

Dental Materials Journal

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The purpose of this study was to compare root-end sealing using 4-META/MMA-TBB resin with that using conventional retrograde root filling technique, and thereby determine if 4-META/MMA-TBB resin offers long-term prevention against dye leakage from the root canal of human teeth. Thirty-five teeth had the apical 2.5mm of the root resected. In the Sealing (SB) group, 4-META/MMA-TBB resin was applied to the resected surface.In the Filling (Am and EBA) groups, a root-end cavity was prepared and retrofilled with high copper amalgam alloy or reinforced zinc oxide-eugenol cement. Root canals were filled with methylene blue dye solution.Then, dye leakage outside the root canal was measured for 50 weeks. The integrated amount of leakage in SB group was significantly lower than those in Am group (p<0.05) and EBA group (p<0.05).Therefore, it can be concluded that root-end sealing using 4-META/MMA-TBB resin resulted in better, long-term sealing than conventional retrograde root filling.

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Study on root canal closure with retrofilling materials in apicoectomy. Comparison and investigation by dye penetrating test using 2% fuchsin dye solution.

Cited by 2 publications

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Durability of Adhesion between 4-META/MMA-TBB Resin and Cementum

Durability of Adhesion between 4-META/MMA-TBB Resin and Cementum

Long-term Durability of Root-end Sealing with 4-META/MMA-TBB Resin

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