Influence of powder composition and morphology on penetration of gray and white proroot mineral trioxide aggregate and calcium hydroxide into dentin tubules

Takashi Komabayashi, Leann Long, Chul Ahn, Robert Spears, Qiang Zhu, Robert C. Eberhart

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study examined the influence of powder composition and morphology on the penetration of Gray and White ProRoot mineral trioxide aggregate (GMTA, WMTA) and calcium hydroxide (CH) into open dentin tubules. GMTA, WMTA, and CH particle dimensions were analyzed by flow particle image analysis (FPIA). Penetration of open dentin tubules into dentin discs was studied by scanning electron microscopy. Five samples of each material were randomly selected and prepared for this study. The GMTA averages for length (µm), width (µm), perimeter (µm), and aspect ratio were 1.94 ± 1.65, 1.43 ± 1.19, 5.61 ± 4.27, and 0.76 ± 0.14, respectively. Corresponding averages for WMTA were 2.04 ± 1.87, 1.49 ± 1.33, 5.88 ± 4.81, and 0.76 ± 0.14, and for CH were 2.26 ± 1.99, 1.62 ± 1.46, 6.70 ± 5.60, and 0.74 ± 0.15, respectively. The rank order of the averages for particle length, width and perimeter from the largest to the smallest material was CH > WMTA > GMTA. The rank order of the averaged aspect ratios was GMTA > WMTA > CH. SEM showed that all three materials, when deposited and agitated on dentin discs, penetrated the open dentin tubules. Tubule occlusion occurred as particle surface concentrations increased. Significant differences in particle length, width, perimeter, and aspect ratio were observed for GMTA, WMTA, and CH (P < 0.0001 in all cases). All particle types penetrated into open tubules when agitated on dentin discs; all tubules were eventually occluded as particle concentrations grew.

Original languageEnglish (US)
Pages (from-to)287-293
Number of pages7
JournalJournal of oral science
Volume56
Issue number4
DOIs
StatePublished - 2014

Fingerprint

Calcium Hydroxide
Dentin
Powders
Electron Scanning Microscopy
mineral trioxide aggregate

Keywords

  • Calcium hydroxide
  • Dentin tubule
  • Image analysis
  • Mineral trioxide aggregate
  • Morphology

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Influence of powder composition and morphology on penetration of gray and white proroot mineral trioxide aggregate and calcium hydroxide into dentin tubules. / Komabayashi, Takashi; Long, Leann; Ahn, Chul; Spears, Robert; Zhu, Qiang; Eberhart, Robert C.

In: Journal of oral science, Vol. 56, No. 4, 2014, p. 287-293.

Research output: Contribution to journalArticle

Komabayashi, Takashi ; Long, Leann ; Ahn, Chul ; Spears, Robert ; Zhu, Qiang ; Eberhart, Robert C. / Influence of powder composition and morphology on penetration of gray and white proroot mineral trioxide aggregate and calcium hydroxide into dentin tubules. In: Journal of oral science. 2014 ; Vol. 56, No. 4. pp. 287-293.
@article{918697e0bf5549bc886307d822660003,
title = "Influence of powder composition and morphology on penetration of gray and white proroot mineral trioxide aggregate and calcium hydroxide into dentin tubules",
abstract = "This study examined the influence of powder composition and morphology on the penetration of Gray and White ProRoot mineral trioxide aggregate (GMTA, WMTA) and calcium hydroxide (CH) into open dentin tubules. GMTA, WMTA, and CH particle dimensions were analyzed by flow particle image analysis (FPIA). Penetration of open dentin tubules into dentin discs was studied by scanning electron microscopy. Five samples of each material were randomly selected and prepared for this study. The GMTA averages for length (µm), width (µm), perimeter (µm), and aspect ratio were 1.94 ± 1.65, 1.43 ± 1.19, 5.61 ± 4.27, and 0.76 ± 0.14, respectively. Corresponding averages for WMTA were 2.04 ± 1.87, 1.49 ± 1.33, 5.88 ± 4.81, and 0.76 ± 0.14, and for CH were 2.26 ± 1.99, 1.62 ± 1.46, 6.70 ± 5.60, and 0.74 ± 0.15, respectively. The rank order of the averages for particle length, width and perimeter from the largest to the smallest material was CH > WMTA > GMTA. The rank order of the averaged aspect ratios was GMTA > WMTA > CH. SEM showed that all three materials, when deposited and agitated on dentin discs, penetrated the open dentin tubules. Tubule occlusion occurred as particle surface concentrations increased. Significant differences in particle length, width, perimeter, and aspect ratio were observed for GMTA, WMTA, and CH (P < 0.0001 in all cases). All particle types penetrated into open tubules when agitated on dentin discs; all tubules were eventually occluded as particle concentrations grew.",
keywords = "Calcium hydroxide, Dentin tubule, Image analysis, Mineral trioxide aggregate, Morphology",
author = "Takashi Komabayashi and Leann Long and Chul Ahn and Robert Spears and Qiang Zhu and Eberhart, {Robert C.}",
year = "2014",
doi = "10.2334/josnusd.56.287",
language = "English (US)",
volume = "56",
pages = "287--293",
journal = "Journal of oral science",
issn = "1343-4934",
publisher = "Nihon University",
number = "4",

}

TY - JOUR

T1 - Influence of powder composition and morphology on penetration of gray and white proroot mineral trioxide aggregate and calcium hydroxide into dentin tubules

AU - Komabayashi, Takashi

AU - Long, Leann

AU - Ahn, Chul

AU - Spears, Robert

AU - Zhu, Qiang

AU - Eberhart, Robert C.

PY - 2014

Y1 - 2014

N2 - This study examined the influence of powder composition and morphology on the penetration of Gray and White ProRoot mineral trioxide aggregate (GMTA, WMTA) and calcium hydroxide (CH) into open dentin tubules. GMTA, WMTA, and CH particle dimensions were analyzed by flow particle image analysis (FPIA). Penetration of open dentin tubules into dentin discs was studied by scanning electron microscopy. Five samples of each material were randomly selected and prepared for this study. The GMTA averages for length (µm), width (µm), perimeter (µm), and aspect ratio were 1.94 ± 1.65, 1.43 ± 1.19, 5.61 ± 4.27, and 0.76 ± 0.14, respectively. Corresponding averages for WMTA were 2.04 ± 1.87, 1.49 ± 1.33, 5.88 ± 4.81, and 0.76 ± 0.14, and for CH were 2.26 ± 1.99, 1.62 ± 1.46, 6.70 ± 5.60, and 0.74 ± 0.15, respectively. The rank order of the averages for particle length, width and perimeter from the largest to the smallest material was CH > WMTA > GMTA. The rank order of the averaged aspect ratios was GMTA > WMTA > CH. SEM showed that all three materials, when deposited and agitated on dentin discs, penetrated the open dentin tubules. Tubule occlusion occurred as particle surface concentrations increased. Significant differences in particle length, width, perimeter, and aspect ratio were observed for GMTA, WMTA, and CH (P < 0.0001 in all cases). All particle types penetrated into open tubules when agitated on dentin discs; all tubules were eventually occluded as particle concentrations grew.

AB - This study examined the influence of powder composition and morphology on the penetration of Gray and White ProRoot mineral trioxide aggregate (GMTA, WMTA) and calcium hydroxide (CH) into open dentin tubules. GMTA, WMTA, and CH particle dimensions were analyzed by flow particle image analysis (FPIA). Penetration of open dentin tubules into dentin discs was studied by scanning electron microscopy. Five samples of each material were randomly selected and prepared for this study. The GMTA averages for length (µm), width (µm), perimeter (µm), and aspect ratio were 1.94 ± 1.65, 1.43 ± 1.19, 5.61 ± 4.27, and 0.76 ± 0.14, respectively. Corresponding averages for WMTA were 2.04 ± 1.87, 1.49 ± 1.33, 5.88 ± 4.81, and 0.76 ± 0.14, and for CH were 2.26 ± 1.99, 1.62 ± 1.46, 6.70 ± 5.60, and 0.74 ± 0.15, respectively. The rank order of the averages for particle length, width and perimeter from the largest to the smallest material was CH > WMTA > GMTA. The rank order of the averaged aspect ratios was GMTA > WMTA > CH. SEM showed that all three materials, when deposited and agitated on dentin discs, penetrated the open dentin tubules. Tubule occlusion occurred as particle surface concentrations increased. Significant differences in particle length, width, perimeter, and aspect ratio were observed for GMTA, WMTA, and CH (P < 0.0001 in all cases). All particle types penetrated into open tubules when agitated on dentin discs; all tubules were eventually occluded as particle concentrations grew.

KW - Calcium hydroxide

KW - Dentin tubule

KW - Image analysis

KW - Mineral trioxide aggregate

KW - Morphology

UR - http://www.scopus.com/inward/record.url?scp=84937677045&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84937677045&partnerID=8YFLogxK

U2 - 10.2334/josnusd.56.287

DO - 10.2334/josnusd.56.287

M3 - Article

C2 - 25500926

AN - SCOPUS:84937677045

VL - 56

SP - 287

EP - 293

JO - Journal of oral science

JF - Journal of oral science

SN - 1343-4934

IS - 4

ER -