Repair of composites

Effect of laser and different surface treatments

Daphne C. Barcellos, Vivian M. Miyazaki Santos, Li Na Niu, David Henry Pashley, Franklin Chi Meng Tay, Cesar R. Pucci

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objectives This study investigated the repairs of resin composite restorations after using different surface treatments. Design Eighty four truncated cones of Filtek Z350 were prepared and thermo-cycled (20,000 cycles). Surfaces were roughened with diamond bur and etched with 37% phosphoric acid. Those cones were divided into 7 groups (N=12): 1) Prime&Bond 2.1; 2) aluminum oxide sandblasting+Prime&Bond 2.1; 3) Er:YAG laser treatment+Prime&Bond 2.1; 4) 9.6% hydrofluoric acid for 2 min+silane coupling agent.; 5) silane coupling agent; 6) auto-polymerized acrylic monomer+Prime&Bond 2.1; 7) Adper Scothbond SE. Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated. The bonded specimens were stressed to failure under tension. The data were analyzed with one-way ANOVA and Tukey tests. Results Mean repair strengths (SD, in MPa) were, Group-2: 18.8a; Group-1: 18.7a; Group-6: 13.4ab; Group-7: 9.5bc; Group-3: 7.5bcd; Group-4: 5.2cd; Group-5: 2.6d. Conclusions The use of diamond bur and a conventional adhesive and the use of aluminum oxide sandblasting prior to adhesive provided a simple and cost-effective solutions to composite repair. Er:YAG laser, silane alone, 9.6% hydrofluoric acid plus silane or a self-etching adhesive results in inferior composite repair strengths. Clinical relevance Diamond bur roughening alone or in combination with aluminum oxide sandblasting is equally effective in preparing a roughened surface for resin composite repair using Prime&Bond 2.1 as the adhesive.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalInternational Journal of Adhesion and Adhesives
Volume59
DOIs
StatePublished - Jan 1 2015

Fingerprint

Surface treatment
Silanes
Repair
Diamond
Lasers
Aluminum Oxide
Adhesives
Composite materials
Hydrofluoric Acid
Cones
Diamonds
Hydrofluoric acid
Composite Resins
Coupling agents
Aluminum
Oxides
Resins
Acrylic monomers
Polytetrafluoroethylene
Phosphoric acid

Keywords

  • Composite resin repair
  • Laser
  • Nanofilled composite resin
  • Silane
  • Silica coating

ASJC Scopus subject areas

  • Biomaterials
  • Chemical Engineering(all)
  • Polymers and Plastics

Cite this

Repair of composites : Effect of laser and different surface treatments. / Barcellos, Daphne C.; Miyazaki Santos, Vivian M.; Niu, Li Na; Pashley, David Henry; Tay, Franklin Chi Meng; Pucci, Cesar R.

In: International Journal of Adhesion and Adhesives, Vol. 59, 01.01.2015, p. 1-6.

Research output: Contribution to journalArticle

Barcellos, Daphne C. ; Miyazaki Santos, Vivian M. ; Niu, Li Na ; Pashley, David Henry ; Tay, Franklin Chi Meng ; Pucci, Cesar R. / Repair of composites : Effect of laser and different surface treatments. In: International Journal of Adhesion and Adhesives. 2015 ; Vol. 59. pp. 1-6.
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abstract = "Objectives This study investigated the repairs of resin composite restorations after using different surface treatments. Design Eighty four truncated cones of Filtek Z350 were prepared and thermo-cycled (20,000 cycles). Surfaces were roughened with diamond bur and etched with 37{\%} phosphoric acid. Those cones were divided into 7 groups (N=12): 1) Prime&Bond 2.1; 2) aluminum oxide sandblasting+Prime&Bond 2.1; 3) Er:YAG laser treatment+Prime&Bond 2.1; 4) 9.6{\%} hydrofluoric acid for 2 min+silane coupling agent.; 5) silane coupling agent; 6) auto-polymerized acrylic monomer+Prime&Bond 2.1; 7) Adper Scothbond SE. Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated. The bonded specimens were stressed to failure under tension. The data were analyzed with one-way ANOVA and Tukey tests. Results Mean repair strengths (SD, in MPa) were, Group-2: 18.8a; Group-1: 18.7a; Group-6: 13.4ab; Group-7: 9.5bc; Group-3: 7.5bcd; Group-4: 5.2cd; Group-5: 2.6d. Conclusions The use of diamond bur and a conventional adhesive and the use of aluminum oxide sandblasting prior to adhesive provided a simple and cost-effective solutions to composite repair. Er:YAG laser, silane alone, 9.6{\%} hydrofluoric acid plus silane or a self-etching adhesive results in inferior composite repair strengths. Clinical relevance Diamond bur roughening alone or in combination with aluminum oxide sandblasting is equally effective in preparing a roughened surface for resin composite repair using Prime&Bond 2.1 as the adhesive.",
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AU - Barcellos, Daphne C.

AU - Miyazaki Santos, Vivian M.

AU - Niu, Li Na

AU - Pashley, David Henry

AU - Tay, Franklin Chi Meng

AU - Pucci, Cesar R.

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N2 - Objectives This study investigated the repairs of resin composite restorations after using different surface treatments. Design Eighty four truncated cones of Filtek Z350 were prepared and thermo-cycled (20,000 cycles). Surfaces were roughened with diamond bur and etched with 37% phosphoric acid. Those cones were divided into 7 groups (N=12): 1) Prime&Bond 2.1; 2) aluminum oxide sandblasting+Prime&Bond 2.1; 3) Er:YAG laser treatment+Prime&Bond 2.1; 4) 9.6% hydrofluoric acid for 2 min+silane coupling agent.; 5) silane coupling agent; 6) auto-polymerized acrylic monomer+Prime&Bond 2.1; 7) Adper Scothbond SE. Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated. The bonded specimens were stressed to failure under tension. The data were analyzed with one-way ANOVA and Tukey tests. Results Mean repair strengths (SD, in MPa) were, Group-2: 18.8a; Group-1: 18.7a; Group-6: 13.4ab; Group-7: 9.5bc; Group-3: 7.5bcd; Group-4: 5.2cd; Group-5: 2.6d. Conclusions The use of diamond bur and a conventional adhesive and the use of aluminum oxide sandblasting prior to adhesive provided a simple and cost-effective solutions to composite repair. Er:YAG laser, silane alone, 9.6% hydrofluoric acid plus silane or a self-etching adhesive results in inferior composite repair strengths. Clinical relevance Diamond bur roughening alone or in combination with aluminum oxide sandblasting is equally effective in preparing a roughened surface for resin composite repair using Prime&Bond 2.1 as the adhesive.

AB - Objectives This study investigated the repairs of resin composite restorations after using different surface treatments. Design Eighty four truncated cones of Filtek Z350 were prepared and thermo-cycled (20,000 cycles). Surfaces were roughened with diamond bur and etched with 37% phosphoric acid. Those cones were divided into 7 groups (N=12): 1) Prime&Bond 2.1; 2) aluminum oxide sandblasting+Prime&Bond 2.1; 3) Er:YAG laser treatment+Prime&Bond 2.1; 4) 9.6% hydrofluoric acid for 2 min+silane coupling agent.; 5) silane coupling agent; 6) auto-polymerized acrylic monomer+Prime&Bond 2.1; 7) Adper Scothbond SE. Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated. The bonded specimens were stressed to failure under tension. The data were analyzed with one-way ANOVA and Tukey tests. Results Mean repair strengths (SD, in MPa) were, Group-2: 18.8a; Group-1: 18.7a; Group-6: 13.4ab; Group-7: 9.5bc; Group-3: 7.5bcd; Group-4: 5.2cd; Group-5: 2.6d. Conclusions The use of diamond bur and a conventional adhesive and the use of aluminum oxide sandblasting prior to adhesive provided a simple and cost-effective solutions to composite repair. Er:YAG laser, silane alone, 9.6% hydrofluoric acid plus silane or a self-etching adhesive results in inferior composite repair strengths. Clinical relevance Diamond bur roughening alone or in combination with aluminum oxide sandblasting is equally effective in preparing a roughened surface for resin composite repair using Prime&Bond 2.1 as the adhesive.

KW - Composite resin repair

KW - Laser

KW - Nanofilled composite resin

KW - Silane

KW - Silica coating

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