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

doi:10.1016/j.joen.2006.11.002

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 journal › Article › peer-review

97 Scopus citations

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 language	English (US)
Pages (from-to)	272-275
Number of pages	4
Journal	Journal of endodontics
Volume	33
Issue number	3
DOIs	https://doi.org/10.1016/j.joen.2006.11.002
State	Published - Mar 2007

Keywords

Apexification
apical plug
fluid filtration
mineral trioxide aggregate
orthograde root filling

ASJC Scopus subject areas

General Dentistry

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10.1016/j.joen.2006.11.002

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@article{3215a78734b24aa58fdd6c48823a930c,

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

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.",

keywords = "Apexification, apical plug, fluid filtration, mineral trioxide aggregate, orthograde root filling",

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

note = "Funding Information: The MTAs used in this study were generous gifts from Dentsply Tulsa Dental. The floral foams used in this study were generously provided by Anna Tay. This study was supported by National Institute of Dental Research Grants R01 DE-014911 and DE-015306 of the National Institutes of Health, USA (PI. David Pashley). The authors are grateful to Mrs. Michelle Barnes for secretarial support. ",

year = "2007",

month = mar,

doi = "10.1016/j.joen.2006.11.002",

language = "English (US)",

volume = "33",

pages = "272--275",

journal = "Journal of endodontics",

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AU - Martin, Rebecca L.

AU - Monticelli, Francesca

AU - Brackett, William W.

AU - Loushine, Robert J.

AU - Rockman, Roy A.

AU - Ferrari, Marco

AU - Pashley, David H.

AU - Tay, Franklin R.

N1 - Funding Information: The MTAs used in this study were generous gifts from Dentsply Tulsa Dental. The floral foams used in this study were generously provided by Anna Tay. This study was supported by National Institute of Dental Research Grants R01 DE-014911 and DE-015306 of the National Institutes of Health, USA (PI. David Pashley). The authors are grateful to Mrs. Michelle Barnes for secretarial support.

PY - 2007/3

Y1 - 2007/3

N2 - 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.

AB - 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.

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KW - orthograde root filling

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

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