Selective masking for thin indirect restorations: Can the use of opaque resin affect the dentine bond strength of immediately sealed preparations?

Pascal Magne; Maria Paula Paranhos; Julia Hehn; Elisa Oderich; Luis Leonildo Boff

doi:10.1016/j.jdent.2011.07.005

Selective masking for thin indirect restorations: Can the use of opaque resin affect the dentine bond strength of immediately sealed preparations?

Pascal Magne, Maria Paula Paranhos, Julia Hehn, Elisa Oderich, Luis Leonildo Boff

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Purpose: Evaluate the dentine bond strength using different methods of application of opaque resins to mask dentine discoloration. Materials and methods: Dentine was exposed on 21 extracted molars which were assigned to 3 groups: G1: immediate dentine sealing (IDS). G2: IDS + opaque. G3: IDS with adhesive resin mixed with opaque. After 1 week, teeth were restored and beams were fabricated for microtensile testing. Optical microscopy was used to analyse the failure mode. Results: Bond strength mean values were statistically different: G1 55.20 MPa > G2 45.79 MPa > G3 18.96 MPa. Failure modes were mostly adhesive for G1 and G3. G2 presented mostly mixed failures. Conclusion: The use of opaque resin to mask discoloured dentine results in a decrease of bond strength.

Original language	English (US)
Pages (from-to)	707-709
Number of pages	3
Journal	Journal of Dentistry
Volume	39
Issue number	10
DOIs	https://doi.org/10.1016/j.jdent.2011.07.005
State	Published - Oct 2011
Externally published	Yes

Keywords

Dentine bond strength
Discoloration
Opaque resin
Porcelain veneers

ASJC Scopus subject areas

General Dentistry

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10.1016/j.jdent.2011.07.005

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title = "Selective masking for thin indirect restorations: Can the use of opaque resin affect the dentine bond strength of immediately sealed preparations?",

abstract = "Purpose: Evaluate the dentine bond strength using different methods of application of opaque resins to mask dentine discoloration. Materials and methods: Dentine was exposed on 21 extracted molars which were assigned to 3 groups: G1: immediate dentine sealing (IDS). G2: IDS + opaque. G3: IDS with adhesive resin mixed with opaque. After 1 week, teeth were restored and beams were fabricated for microtensile testing. Optical microscopy was used to analyse the failure mode. Results: Bond strength mean values were statistically different: G1 55.20 MPa > G2 45.79 MPa > G3 18.96 MPa. Failure modes were mostly adhesive for G1 and G3. G2 presented mostly mixed failures. Conclusion: The use of opaque resin to mask discoloured dentine results in a decrease of bond strength.",

keywords = "Dentine bond strength, Discoloration, Opaque resin, Porcelain veneers",

author = "Pascal Magne and Paranhos, {Maria Paula} and Julia Hehn and Elisa Oderich and Boff, {Luis Leonildo}",

year = "2011",

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AU - Magne, Pascal

AU - Paranhos, Maria Paula

AU - Hehn, Julia

AU - Oderich, Elisa

AU - Boff, Luis Leonildo

PY - 2011/10

Y1 - 2011/10

N2 - Purpose: Evaluate the dentine bond strength using different methods of application of opaque resins to mask dentine discoloration. Materials and methods: Dentine was exposed on 21 extracted molars which were assigned to 3 groups: G1: immediate dentine sealing (IDS). G2: IDS + opaque. G3: IDS with adhesive resin mixed with opaque. After 1 week, teeth were restored and beams were fabricated for microtensile testing. Optical microscopy was used to analyse the failure mode. Results: Bond strength mean values were statistically different: G1 55.20 MPa > G2 45.79 MPa > G3 18.96 MPa. Failure modes were mostly adhesive for G1 and G3. G2 presented mostly mixed failures. Conclusion: The use of opaque resin to mask discoloured dentine results in a decrease of bond strength.

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KW - Dentine bond strength

KW - Discoloration

KW - Opaque resin

KW - Porcelain veneers

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Selective masking for thin indirect restorations: Can the use of opaque resin affect the dentine bond strength of immediately sealed preparations?

Abstract

Keywords

ASJC Scopus subject areas

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