Sealing Properties of Mineral Trioxide Aggregate Orthograde Apical Plugs and Root Fillings in an In Vitro Apexification Model

Martin, R.; Monticelli, Francesca; Ww, Brackett; Loushine, Robert J.; Rockman, Roy A.; Ferrari, Marco; Pashley, David H.; Tay, Franklin R.

doi:10.1016/j.joen.2006.11.002

Cited by 120 publications

(142 citation statements)

References 31 publications

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“…5 The biomineralization process may be responsible for the increase in the marginal sealing of MTA apical plugs over time, after immersion in PBS. 26 Along the same line, various studies have shown an increase in resistance to the displacement of MTA from root dentin under wet dentin conditions 27,28,29 and that the biomineralization process positively influences the bond strength to push-out of MTA cements in PBS. 30 The authors could hypothesize that, in the present study, SBF promoted a higher degree of bioactivity because it was more supersaturated than the other solutions used; and that the precipitate formed may have influenced the interaction of the filling materials with root dentin, potentiating the bond strength of this bond interface.…”

Section: Discussionmentioning

confidence: 97%

Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material

et al. 2017

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To evaluate the influence of rewetting solutions on bond strength to root dentin of conventional gutta-percha (GP) or niobium phosphate glass-based gutta-percha (GNb) associated with a bioceramic sealer. The root canals of 80 human mandibular premolars were prepared using nickel-titanium instruments and irrigation with sodium hypochlorite and EDTA. The teeth were randomly divided into four groups according to the gutta-percha used: GNb or GP associated with EndoSequence BC Sealer (BC) and the solution for rewetting dentin before filling (distilled water; phosphate buffer saline solution -PBS; simulated body fluid -SBF; or no solution). The root canals were filled with a single cone using warm vertical condensation. Micropush-out bond strengths associated with the filling materials in slices from middle root thirds was determined 30 days after root filling. The failure mode was analyzed with stereoscopic lens. The data were statistically analyzed by two-way ANOVA and Holm-Sidak test (p < 0.05). There was significant difference in the types of gutta-percha (p < 0.001) and in the different rewetting solutions (p = 0.003). The interaction between gutta-percha and rewetting solutions was not significant (p = 0.53). The SBF solution provided an increase in bond strength for both gutta-percha solutions. The GNb+BC (3.42 MPa) association increased bond strength when compared with GP+BC (2.0 MPa). The use of SBF as a dentin rewetting solution increased bond strength in the groups studied. Association of GNb with bioceramic sealer was beneficial, increasing the bond strength to dentin when compared with the association with GP.

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Section: Discussionmentioning

confidence: 97%

Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material

et al. 2017

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“…20,21 Moreover, many methods such as bacterial penetration, glucose leakage, and fluid filtration have been reported as methods to evaluate microleakage. 11,[22][23][24] In fact, there is no standard method to investigate microleakage. For instance, the amount of leakage in a bacterial leakage study might be influenced by the kind of bacteria and the culture medium that has been used as an indicator.…”

Section: Discussionmentioning

confidence: 99%

Effect of Synthetic Tissue Fluid on Microleakage of Grey and White Mineral Trioxide Aggregate as Root-End Filling Materials : An in Vitro Study

Lotfi¹,

Vosoughhosseini²,

Saghiri³

et al. 2012

SQUMJ

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Objectives: The success of endodontic surgery has been shown to depend partly on the apical seal. Grey mineral trioxide aggregate (GMTA) produces hydroxyapatite twice as often as white mineral trioxide aggregate (WMTA) when suspended in a phosphate buffered saline (PBS) solution. The aim of this in vitro study was to compare the microleakage phenomenon of gray and white mineral trioxide aggregates as root-end filling materials after immersion in synthetic tissue fluid (STF). Methods: 55 single-rooted extracted maxillary anterior human teeth were divided into two experimental groups of 20 teeth each, plus 3 groups of 5 teeth each as two negative and one positive control groups. The root canals were cleaned, shaped, and laterally compacted with gutta-percha. The root ends were resected and 3 mm deep cavities were prepared. The root-end preparations were filled with GMTA or WMTA in the experimental groups. Leakage was determined using a dye penetration method. Data were analysed using analysis of variance (ANOVA) at the 0.05 level of significance. Results: The mean dye leakage was 0.40 ± 0.1 mm for GMTA and 0.50±0.1 mm for WMTA groups, respectively. There was no significant difference between the two experimental groups (P = 0.14). Conclusion: Despite the different properties and behaviours of GMTA and

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“…(6) MTA has shown good sealing abilities and biocompatibility to the periradicular tissue. (7,8,9) MTA has been successfully used as an apical barrier. (10,11) In this case maintaining sterilization of root canal, intracanal medicament, good apical seal using MTA and a three dimensional obturation has contributed to the success of the cases.…”

Section: Discussionmentioning

confidence: 99%

Apical barrier technique using MTA: report of two cases

et al. 2012

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Sealing Properties of Mineral Trioxide Aggregate Orthograde Apical Plugs and Root Fillings in an In Vitro Apexification Model

Cited by 120 publications

References 31 publications

Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material

Effect of rewetting solutions on micropush-out dentin bond strength of new bioceramic endodontic material

Effect of Synthetic Tissue Fluid on Microleakage of Grey and White Mineral Trioxide Aggregate as Root-End Filling Materials : An in Vitro Study

Apical barrier technique using MTA: report of two cases

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