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

Rebecca L. Martin, Francesca Monticelli, William W. Brackett, Robert J. Loushine, Roy A. Rockman, Marco Ferrari, David H. Pashley, Franklin R. Tay

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

One-visit mineral trioxide aggregate (MTA) apexification is gaining in popularity over the use of calcium hydroxide barriers. This study examined the sealing properties of two MTA apexification procedures using an in vitro apexification model. White MTA was introduced into instrumented single-rooted canals with standardized artificially created open apices to form 3- to 5-mm-thick orthograde apical plugs or complete orthograde fillings of the root segments. The remaining canal spaces in the former group were backfilled with thermoplasticized gutta-percha without a sealer. A Flodec fluid filtration device was used to record fluid flow across filled root canals at 48 hours and after 4 weeks of immersion in phosphate-buffered saline (PBS). Although MTA root fillings exhibited a better seal than MTA apical plugs at 48 hours, seals of these two groups were not significantly different after 4 weeks. Interaction of MTA with PBS may result in apatite deposition that improves the seal of MTA apical plugs with time.

Original languageEnglish (US)
Pages (from-to)272-275
Number of pages4
JournalJournal of Endodontics
Volume33
Issue number3
DOIs
StatePublished - Mar 1 2007

Fingerprint

Apexification
Phosphates
Gutta-Percha
Calcium Hydroxide
Apatites
Dental Pulp Cavity
Immersion
mineral trioxide aggregate
In Vitro Techniques
Equipment and Supplies

Keywords

  • Apexification
  • apical plug
  • fluid filtration
  • mineral trioxide aggregate
  • orthograde root filling

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Sealing Properties of Mineral Trioxide Aggregate Orthograde Apical Plugs and Root Fillings in an In Vitro Apexification Model. / Martin, Rebecca L.; Monticelli, Francesca; Brackett, William W.; Loushine, Robert J.; Rockman, Roy A.; Ferrari, Marco; Pashley, David H.; Tay, Franklin R.

In: Journal of Endodontics, Vol. 33, No. 3, 01.03.2007, p. 272-275.

Research output: Contribution to journalArticle

Martin, Rebecca L. ; Monticelli, Francesca ; Brackett, William W. ; Loushine, Robert J. ; Rockman, Roy A. ; Ferrari, Marco ; Pashley, David H. ; Tay, Franklin R. / Sealing Properties of Mineral Trioxide Aggregate Orthograde Apical Plugs and Root Fillings in an In Vitro Apexification Model. In: Journal of Endodontics. 2007 ; Vol. 33, No. 3. pp. 272-275.
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