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The Resource Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness, Kaylee Anne Bergman

Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness, Kaylee Anne Bergman

Creator
Author
Contributor
Summary
Objective: This study evaluated the effect of primer protocol for metal orthodontic brackets bonded to zirconia ceramic and resulting shear bond strength (SBS), adhesive remnant index (ARI), and debonded and polished zirconia surface roughness. Methods: Zirconia specimens were milled, glazed, embedded in acrylic resin and the target area microetched with aluminum oxide. Glazed and microetched representative specimens were evaluated with energy dispersive spectroscopy (EDS). Specimens were randomly assigned to primer protocol, enamel (TransbondTM Plus Self-Etching Primer) or zirconia (Assure® Plus), and primed according to manufacturer instructions. Metal orthodontic brackets were bonded to the primed surface with resin adhesive (Transbond XTTM) and light cured. To simulate intraoral conditions, all primer and bonding protocols took place in an environmental chamber set at 33±2°C and 75±5% humidity followed by a 24-hour dark cure at 37 C. Following SBS testing, an ARI value was assigned to debonded brackets. Residual adhesive was removed from the debonded zirconia specimens, the zirconia surface polished, and surface roughness measured using a profilometer. Scanning electron microscopy (SEM) was performed for qualitative evaluation of the zirconia surface. Results: Zirconia substructure exposure by aluminum oxide microetching was verified with EDS. A significantly lower (p<0.05) SBS was recorded for metal orthodontic brackets bonded with enamel primer (5.43±1.82 MPa) compared to zirconia primer (7.24±1.07 MPa). A significantly lower ARI value for metal orthodontic brackets bonded with enamel primer compared to the zirconia primer indicated failure at the zirconia-adhesive interface compared to the adhesive-bracket interface when bonding with enamel and zirconia primers, respectively. There was no significant difference in average surface roughness for debonded and polished zirconia when using an enamel or zirconia primer protocol. There was a 57.4% positive correlation between SBS and ARI results. All specimens exhibited grain lifting and shelving of debonded and polished zirconia specimens regardless of primer protocol. Conclusions: Metal orthodontic brackets bonded with a zirconia primer protocol demonstrated significantly higher SBS; however, the clinical significance may be negligible. Metal orthodontic brackets bonded to zirconia ceramics using an enamel or zirconia primer protocol may be returned to their original surface roughness with a proper adhesive removal and polishing protocol
Language
eng
Work
Publication
Extent
1 online resource (46 pages)
Note
  • "A thesis in Oral and Craniofacial Sciences."
  • Advisors: Mary P. Walker and Yong Wang
  • Vita
Contents
  • Introduction
  • Materials and methods
  • Results
  • Discussion
  • Conclusions
Instance
Label
Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness
Title
Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness
Statement of responsibility
Kaylee Anne Bergman
Creator
Contributor
Author
Degree supervisor
Subject
Genre
Language
eng
Summary
Objective: This study evaluated the effect of primer protocol for metal orthodontic brackets bonded to zirconia ceramic and resulting shear bond strength (SBS), adhesive remnant index (ARI), and debonded and polished zirconia surface roughness. Methods: Zirconia specimens were milled, glazed, embedded in acrylic resin and the target area microetched with aluminum oxide. Glazed and microetched representative specimens were evaluated with energy dispersive spectroscopy (EDS). Specimens were randomly assigned to primer protocol, enamel (TransbondTM Plus Self-Etching Primer) or zirconia (Assure® Plus), and primed according to manufacturer instructions. Metal orthodontic brackets were bonded to the primed surface with resin adhesive (Transbond XTTM) and light cured. To simulate intraoral conditions, all primer and bonding protocols took place in an environmental chamber set at 33±2°C and 75±5% humidity followed by a 24-hour dark cure at 37 C. Following SBS testing, an ARI value was assigned to debonded brackets. Residual adhesive was removed from the debonded zirconia specimens, the zirconia surface polished, and surface roughness measured using a profilometer. Scanning electron microscopy (SEM) was performed for qualitative evaluation of the zirconia surface. Results: Zirconia substructure exposure by aluminum oxide microetching was verified with EDS. A significantly lower (p<0.05) SBS was recorded for metal orthodontic brackets bonded with enamel primer (5.43±1.82 MPa) compared to zirconia primer (7.24±1.07 MPa). A significantly lower ARI value for metal orthodontic brackets bonded with enamel primer compared to the zirconia primer indicated failure at the zirconia-adhesive interface compared to the adhesive-bracket interface when bonding with enamel and zirconia primers, respectively. There was no significant difference in average surface roughness for debonded and polished zirconia when using an enamel or zirconia primer protocol. There was a 57.4% positive correlation between SBS and ARI results. All specimens exhibited grain lifting and shelving of debonded and polished zirconia specimens regardless of primer protocol. Conclusions: Metal orthodontic brackets bonded with a zirconia primer protocol demonstrated significantly higher SBS; however, the clinical significance may be negligible. Metal orthodontic brackets bonded to zirconia ceramics using an enamel or zirconia primer protocol may be returned to their original surface roughness with a proper adhesive removal and polishing protocol
Cataloging source
UMK
http://library.link/vocab/creatorDate
1985-
http://library.link/vocab/creatorName
Bergman, Kaylee Anne
Degree
M.S.
Dissertation note
(School of Dentistry).
Dissertation year
2019.
Granting institution
University of Missouri-Kansas City,
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
  • Walker, Mary P.
  • Wang, Yong
http://library.link/vocab/subjectName
  • Orthodontic appliances
  • Dental bonding
  • Orthodontic Appliances
  • Dental Bonding
Label
Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness, Kaylee Anne Bergman
Instantiates
Publication
Copyright
Note
  • "A thesis in Oral and Craniofacial Sciences."
  • Advisors: Mary P. Walker and Yong Wang
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 43-45)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Materials and methods -- Results -- Discussion -- Conclusions
Control code
1132290030
Dimensions
unknown
Extent
1 online resource (46 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)1132290030
System details
  • The full text of the thesis is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web
Label
Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness, Kaylee Anne Bergman
Publication
Copyright
Note
  • "A thesis in Oral and Craniofacial Sciences."
  • Advisors: Mary P. Walker and Yong Wang
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 43-45)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Materials and methods -- Results -- Discussion -- Conclusions
Control code
1132290030
Dimensions
unknown
Extent
1 online resource (46 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)1132290030
System details
  • The full text of the thesis is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web

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