Influence of contamination and cleaning on bond strength to modified zirconia

Jin Ho Phark, Sillas Duarte, Harold Kahn, Markus B. Blatz, Avishai Sadan

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Objective: To evaluate the influence of contamination and cleaning procedures on shear bond strength (SBS) to modified zirconia surfaces. Methods: One hundred zirconium-oxide ceramic disks fabricated with a rough modified surface (Nobel Bond), which allows more micromechanical interlocking for adhesive cementation, were divided into five groups. Groups were contaminated with organic (OC; human blood and saliva) and/or inorganic contaminants (IC; type IV dental stone). For cleaning, modified surfaces were etched with phosphoric acid for 1 min (PA) or fired in a ceramic furnace up to 910 °C and cleaned in an ultrasonic bath in ethanol (FU). Following combinations of contamination and cleaning protocols were chosen: group 1: OC-PA; group 2: IC-FU; group 3: OC + IC-PA + FU; group 4: OC + IC-no cleaning; group 5: no contamination-no cleaning. Level of contamination and efficacy of cleaning were evaluated using X-ray photoelectron spectroscopy (XPS). Composite cylinders were bonded to the disks using dual curing adhesive resin cement (RelyX ARC). Fifty samples were subjected to 20,000 thermal cycles (TC). All samples were tested for SBS. Statistical analysis was performed using one-way ANOVA with α = 0.05. Results: SBS ranged from 16.6 to 18.8 MPa (non-TC) and 10.6-21.7 MPa (TC). TC did not lower SBS, except for group 1. XPS showed that OC produced higher levels of carbon, nitrogen, and silica, whereas IC generated elevated levels of calcium, sulfur, carbon, and potassium. Cleaning with both procedures reduced contamination significantly. Significance: A combination of FU and PA is an efficient method for cleaning contaminated modified zirconia surfaces.

Original languageEnglish (US)
Pages (from-to)1541-1550
Number of pages10
JournalDental Materials
Volume25
Issue number12
DOIs
StatePublished - Dec 1 2009

Fingerprint

Shear Strength
Zirconia
Cleaning
Contamination
Photoelectron Spectroscopy
Hot Temperature
Ceramics
Self-Curing of Dental Resins
Carbon
Cementation
Baths
Saliva
Sulfur
Ultrasonics
Silicon Dioxide
Adhesives
Analysis of Variance
Potassium
Tooth
Ethanol

Keywords

  • Blood
  • Contamination
  • Die stone
  • Intaglio surface
  • Saliva
  • Shear bond strength
  • X-ray photoelectron spectroscopy
  • Zirconia

ASJC Scopus subject areas

  • Dentistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Medicine(all)

Cite this

Phark, J. H., Duarte, S., Kahn, H., Blatz, M. B., & Sadan, A. (2009). Influence of contamination and cleaning on bond strength to modified zirconia. Dental Materials, 25(12), 1541-1550. https://doi.org/10.1016/j.dental.2009.07.007

Influence of contamination and cleaning on bond strength to modified zirconia. / Phark, Jin Ho; Duarte, Sillas; Kahn, Harold; Blatz, Markus B.; Sadan, Avishai.

In: Dental Materials, Vol. 25, No. 12, 01.12.2009, p. 1541-1550.

Research output: Contribution to journalArticle

Phark, JH, Duarte, S, Kahn, H, Blatz, MB & Sadan, A 2009, 'Influence of contamination and cleaning on bond strength to modified zirconia', Dental Materials, vol. 25, no. 12, pp. 1541-1550. https://doi.org/10.1016/j.dental.2009.07.007
Phark, Jin Ho ; Duarte, Sillas ; Kahn, Harold ; Blatz, Markus B. ; Sadan, Avishai. / Influence of contamination and cleaning on bond strength to modified zirconia. In: Dental Materials. 2009 ; Vol. 25, No. 12. pp. 1541-1550.
@article{6508076c1d24468e8bacf706a9822d2e,
title = "Influence of contamination and cleaning on bond strength to modified zirconia",
abstract = "Objective: To evaluate the influence of contamination and cleaning procedures on shear bond strength (SBS) to modified zirconia surfaces. Methods: One hundred zirconium-oxide ceramic disks fabricated with a rough modified surface (Nobel Bond), which allows more micromechanical interlocking for adhesive cementation, were divided into five groups. Groups were contaminated with organic (OC; human blood and saliva) and/or inorganic contaminants (IC; type IV dental stone). For cleaning, modified surfaces were etched with phosphoric acid for 1 min (PA) or fired in a ceramic furnace up to 910 °C and cleaned in an ultrasonic bath in ethanol (FU). Following combinations of contamination and cleaning protocols were chosen: group 1: OC-PA; group 2: IC-FU; group 3: OC + IC-PA + FU; group 4: OC + IC-no cleaning; group 5: no contamination-no cleaning. Level of contamination and efficacy of cleaning were evaluated using X-ray photoelectron spectroscopy (XPS). Composite cylinders were bonded to the disks using dual curing adhesive resin cement (RelyX ARC). Fifty samples were subjected to 20,000 thermal cycles (TC). All samples were tested for SBS. Statistical analysis was performed using one-way ANOVA with α = 0.05. Results: SBS ranged from 16.6 to 18.8 MPa (non-TC) and 10.6-21.7 MPa (TC). TC did not lower SBS, except for group 1. XPS showed that OC produced higher levels of carbon, nitrogen, and silica, whereas IC generated elevated levels of calcium, sulfur, carbon, and potassium. Cleaning with both procedures reduced contamination significantly. Significance: A combination of FU and PA is an efficient method for cleaning contaminated modified zirconia surfaces.",
keywords = "Blood, Contamination, Die stone, Intaglio surface, Saliva, Shear bond strength, X-ray photoelectron spectroscopy, Zirconia",
author = "Phark, {Jin Ho} and Sillas Duarte and Harold Kahn and Blatz, {Markus B.} and Avishai Sadan",
year = "2009",
month = "12",
day = "1",
doi = "10.1016/j.dental.2009.07.007",
language = "English (US)",
volume = "25",
pages = "1541--1550",
journal = "Dental Materials",
issn = "0109-5641",
publisher = "Elsevier Science",
number = "12",

}

TY - JOUR

T1 - Influence of contamination and cleaning on bond strength to modified zirconia

AU - Phark, Jin Ho

AU - Duarte, Sillas

AU - Kahn, Harold

AU - Blatz, Markus B.

AU - Sadan, Avishai

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Objective: To evaluate the influence of contamination and cleaning procedures on shear bond strength (SBS) to modified zirconia surfaces. Methods: One hundred zirconium-oxide ceramic disks fabricated with a rough modified surface (Nobel Bond), which allows more micromechanical interlocking for adhesive cementation, were divided into five groups. Groups were contaminated with organic (OC; human blood and saliva) and/or inorganic contaminants (IC; type IV dental stone). For cleaning, modified surfaces were etched with phosphoric acid for 1 min (PA) or fired in a ceramic furnace up to 910 °C and cleaned in an ultrasonic bath in ethanol (FU). Following combinations of contamination and cleaning protocols were chosen: group 1: OC-PA; group 2: IC-FU; group 3: OC + IC-PA + FU; group 4: OC + IC-no cleaning; group 5: no contamination-no cleaning. Level of contamination and efficacy of cleaning were evaluated using X-ray photoelectron spectroscopy (XPS). Composite cylinders were bonded to the disks using dual curing adhesive resin cement (RelyX ARC). Fifty samples were subjected to 20,000 thermal cycles (TC). All samples were tested for SBS. Statistical analysis was performed using one-way ANOVA with α = 0.05. Results: SBS ranged from 16.6 to 18.8 MPa (non-TC) and 10.6-21.7 MPa (TC). TC did not lower SBS, except for group 1. XPS showed that OC produced higher levels of carbon, nitrogen, and silica, whereas IC generated elevated levels of calcium, sulfur, carbon, and potassium. Cleaning with both procedures reduced contamination significantly. Significance: A combination of FU and PA is an efficient method for cleaning contaminated modified zirconia surfaces.

AB - Objective: To evaluate the influence of contamination and cleaning procedures on shear bond strength (SBS) to modified zirconia surfaces. Methods: One hundred zirconium-oxide ceramic disks fabricated with a rough modified surface (Nobel Bond), which allows more micromechanical interlocking for adhesive cementation, were divided into five groups. Groups were contaminated with organic (OC; human blood and saliva) and/or inorganic contaminants (IC; type IV dental stone). For cleaning, modified surfaces were etched with phosphoric acid for 1 min (PA) or fired in a ceramic furnace up to 910 °C and cleaned in an ultrasonic bath in ethanol (FU). Following combinations of contamination and cleaning protocols were chosen: group 1: OC-PA; group 2: IC-FU; group 3: OC + IC-PA + FU; group 4: OC + IC-no cleaning; group 5: no contamination-no cleaning. Level of contamination and efficacy of cleaning were evaluated using X-ray photoelectron spectroscopy (XPS). Composite cylinders were bonded to the disks using dual curing adhesive resin cement (RelyX ARC). Fifty samples were subjected to 20,000 thermal cycles (TC). All samples were tested for SBS. Statistical analysis was performed using one-way ANOVA with α = 0.05. Results: SBS ranged from 16.6 to 18.8 MPa (non-TC) and 10.6-21.7 MPa (TC). TC did not lower SBS, except for group 1. XPS showed that OC produced higher levels of carbon, nitrogen, and silica, whereas IC generated elevated levels of calcium, sulfur, carbon, and potassium. Cleaning with both procedures reduced contamination significantly. Significance: A combination of FU and PA is an efficient method for cleaning contaminated modified zirconia surfaces.

KW - Blood

KW - Contamination

KW - Die stone

KW - Intaglio surface

KW - Saliva

KW - Shear bond strength

KW - X-ray photoelectron spectroscopy

KW - Zirconia

UR - http://www.scopus.com/inward/record.url?scp=70350573340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350573340&partnerID=8YFLogxK

U2 - 10.1016/j.dental.2009.07.007

DO - 10.1016/j.dental.2009.07.007

M3 - Article

C2 - 19709723

AN - SCOPUS:70350573340

VL - 25

SP - 1541

EP - 1550

JO - Dental Materials

JF - Dental Materials

SN - 0109-5641

IS - 12

ER -