Effect of increasing application time of single bottle adhesives to microtensile bond strength of dried dentin

Hak-Geun Kim; Dong-Jun Kim; Yun-Chan Hwang; Wonmann Oh; In-Nam Hwang

doi:10.5395/JKACD.2005.30.6.435

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Original Article Effect of increasing application time of single bottle adhesives to microtensile bond strength of dried dentin: Hak-Geun Kim, Dong-Jun Kim, Yun-Chan Hwang, Wonmann Oh, In-Nam Hwang; Journal of Korean Academy of Conservative Dentistry 2005;30(6):435-441.
DOI: https://doi.org/10.5395/JKACD.2005.30.6.435
Published online: November 30, 2005

Department of Conservative Dentistry, College of Dentistry, Chonnam National University, Korea.

Corresponding author: In-Nam Hwang. Department of Conservative Dentistry, College of Dentistry, Chonnam National University, 8 Hak-dong, Dong-gu, Gwangju, South Korea, 501-757. Tel: 82-62-220-4443, Fax: 82-62-225-8387, hinso@jnu.ac.kr

• Received: May 16, 2005 • Revised: July 12, 2005 • Accepted: August 26, 2005

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Abstract
REFERENCES

Abstract

The purpose of this study was to evaluate the effect of increasing application time of single bottle adhesives (SBA) to microtensile bond strength (MTBS) of dried dentin. To expose the superficial dentin surfaces, human molars were sectioned perpendicular to the long axis of tooth. 32% phosphoric acid gels were applied for 15s and rinsed. The teeth were randomly assigned to 3 groups ; S group (Single Bond), O group (One-Step), P group (Prime & Bond NT). Each group was divided to 3 subgroups (W: dentin wipe with wet gauge and light cured immediately, D: dentin dried for 30s and light cured immediately, 30: dentin dried for 30s and light cured after applying SBA for 30s). Composite resin was built up on the dentin surface and sectioned to obtain 20 specimens with 1 mm² cross sectional area and the MTBS was measured.

For Single Bond, the mean MTBS of S-W and S-30 group were higher than that of S-D group statistically (P < 0.05). For One-Step, the mean MTBS of O-D group was statistically lower than that of O-W group (P < 0.05). For Prime & Bond NT, the mean MTBS of P-30 group was statistically lower than that of P-D group (P < 0.05).
Keywords: Microtensile bond strength; Dried dentin; Application time; Single Bond; One-Step; Prime & Bond NT

REFERENCES

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Figure 1

Microtensile bond strength (_MPa) of each group.

Table 1

Adhesive systems used in this study

Bis-GMA = bis-phenol-A-diglycidyl methacrylate,

HEMA = 2-hydroxyethyl methacrylate,

BPDM = biphenyl dimethacrylate,

PENTA = dipentaerythritol pentacrylate phosphorous acid ester,

UDMA = urethane dimethacrylate.

Table 2

Microtensile bond strength (_MPa) of each group

Superscripts of the same letter indicate values of no statistical significant difference (p > 0.05).

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Effect of increasing application time of single bottle adhesives to microtensile bond strength of dried dentin

J Korean Acad Conserv Dent. 2005;30(6):435-441. Published online November 30, 2005

DOI: https://doi.org/10.5395/JKACD.2005.30.6.435

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Figure

Effect of increasing application time of single bottle adhesives to microtensile bond strength of dried dentin

Figure 1 Microtensile bond strength (MPa) of each group.

Figure 1

Effect of increasing application time of single bottle adhesives to microtensile bond strength of dried dentin

Table 1

Adhesive systems used in this study

Bis-GMA = bis-phenol-A-diglycidyl methacrylate,

HEMA = 2-hydroxyethyl methacrylate,

BPDM = biphenyl dimethacrylate,

PENTA = dipentaerythritol pentacrylate phosphorous acid ester,

UDMA = urethane dimethacrylate.

Table 2

Microtensile bond strength (_MPa) of each group

Superscripts of the same letter indicate values of no statistical significant difference (p > 0.05).

Table 1 Adhesive systems used in this study

Bis-GMA = bis-phenol-A-diglycidyl methacrylate,

HEMA = 2-hydroxyethyl methacrylate,

BPDM = biphenyl dimethacrylate,

PENTA = dipentaerythritol pentacrylate phosphorous acid ester,

UDMA = urethane dimethacrylate.

Table 2 Microtensile bond strength (MPa) of each group

Superscripts of the same letter indicate values of no statistical significant difference (p > 0.05).