Regional Measurement of Resin-Dentin Bonding as an Array

Y. Shono, T. Ogawa, M. Terashita, R. M. Carvalho, E. L. Pashley, David Henry Pashley

Research output: Contribution to journalArticle

245 Citations (Scopus)

Abstract

During the development of the microtensile bond-testing method, large variations in bond strengths were noted among serial sections. The reason for these variations is unknown. The purpose of this work was to determine the consistency of resin-dentin bond strengths across the occlusal surface of coronal dentin by dividing composite resin buildups into an array of 1 × 1 mm beams, the top half consisting of composite resin, and the bottom half consisting of dentin. Extracted human third molars had the occlusal enamel removed as a single section by means of a diamond saw. Resin composite buildups were made after the dentin was bonded with either One-Step or MacBond. After being stored in 37°C water for 1 day, the teeth were vertically sectioned at 1-mm increments into slabs of bonded teeth. Each slab was further subdivided by vertical sections into 1 × 1 × 8 mm beams. Each beam was assigned an x-y coordinate and tested for tensile bond strength. Two different clinicians (A and B) performed the same procedures using One-Step in a parallel study. Using One-Step, clinician A obtained a large number of zero bonds in superficial dentin but fewer in deep dentin. This resulted in a very large standard deviation in bond strengths (mean ± SD of 22 ± 20 MPa in superficial dentin and 27 ± 14 MPa in deep dentin). Clinician B obtained much higher (p < 0.001) and more uniform bond strengths with One-Step (56 ± 13 MPa in superficial dentin and 57 ± 12 MPa in deep dentin). With MacBond, there were no zero bonds and hence less variation, with a mean of 41 ± 13 MPa in superficial dentin and 27 ± 12 MPa (x̄ ± SD) in deep dentin. When pairs of Z100 resin composite cylinders were bonded together with One-Step and then sectioned into an array, there was little variation in regional bond strength (37 ± 1 MPa). Dividing bonded resin composite buildups into an array of 20 to 30 1 × 1 × 8 mm beams allows for the evaluation of uniformity of resin-dentin bonds. The method used in this study detected local regional differences in resin-dentin bond strengths. The largest differences were shown to be related to technique rather than to material. The results indicate that resin-dentin bonds may not be as homogenous as was previously thought.

Original languageEnglish (US)
Pages (from-to)699-705
Number of pages7
JournalJournal of Dental Research
Volume78
Issue number2
DOIs
StatePublished - Jan 1 1999

Fingerprint

Dentin
Composite Resins
Tooth
Diamond
Third Molar
Tensile Strength
Dental Enamel

Keywords

  • Adhesion
  • Bond strength
  • Dentin bonding

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Shono, Y., Ogawa, T., Terashita, M., Carvalho, R. M., Pashley, E. L., & Pashley, D. H. (1999). Regional Measurement of Resin-Dentin Bonding as an Array. Journal of Dental Research, 78(2), 699-705. https://doi.org/10.1177/00220345990780021001

Regional Measurement of Resin-Dentin Bonding as an Array. / Shono, Y.; Ogawa, T.; Terashita, M.; Carvalho, R. M.; Pashley, E. L.; Pashley, David Henry.

In: Journal of Dental Research, Vol. 78, No. 2, 01.01.1999, p. 699-705.

Research output: Contribution to journalArticle

Shono, Y, Ogawa, T, Terashita, M, Carvalho, RM, Pashley, EL & Pashley, DH 1999, 'Regional Measurement of Resin-Dentin Bonding as an Array', Journal of Dental Research, vol. 78, no. 2, pp. 699-705. https://doi.org/10.1177/00220345990780021001
Shono Y, Ogawa T, Terashita M, Carvalho RM, Pashley EL, Pashley DH. Regional Measurement of Resin-Dentin Bonding as an Array. Journal of Dental Research. 1999 Jan 1;78(2):699-705. https://doi.org/10.1177/00220345990780021001
Shono, Y. ; Ogawa, T. ; Terashita, M. ; Carvalho, R. M. ; Pashley, E. L. ; Pashley, David Henry. / Regional Measurement of Resin-Dentin Bonding as an Array. In: Journal of Dental Research. 1999 ; Vol. 78, No. 2. pp. 699-705.
@article{24bdc640da7343328cd608ea244fe2fd,
title = "Regional Measurement of Resin-Dentin Bonding as an Array",
abstract = "During the development of the microtensile bond-testing method, large variations in bond strengths were noted among serial sections. The reason for these variations is unknown. The purpose of this work was to determine the consistency of resin-dentin bond strengths across the occlusal surface of coronal dentin by dividing composite resin buildups into an array of 1 × 1 mm beams, the top half consisting of composite resin, and the bottom half consisting of dentin. Extracted human third molars had the occlusal enamel removed as a single section by means of a diamond saw. Resin composite buildups were made after the dentin was bonded with either One-Step or MacBond. After being stored in 37°C water for 1 day, the teeth were vertically sectioned at 1-mm increments into slabs of bonded teeth. Each slab was further subdivided by vertical sections into 1 × 1 × 8 mm beams. Each beam was assigned an x-y coordinate and tested for tensile bond strength. Two different clinicians (A and B) performed the same procedures using One-Step in a parallel study. Using One-Step, clinician A obtained a large number of zero bonds in superficial dentin but fewer in deep dentin. This resulted in a very large standard deviation in bond strengths (mean ± SD of 22 ± 20 MPa in superficial dentin and 27 ± 14 MPa in deep dentin). Clinician B obtained much higher (p < 0.001) and more uniform bond strengths with One-Step (56 ± 13 MPa in superficial dentin and 57 ± 12 MPa in deep dentin). With MacBond, there were no zero bonds and hence less variation, with a mean of 41 ± 13 MPa in superficial dentin and 27 ± 12 MPa (x̄ ± SD) in deep dentin. When pairs of Z100 resin composite cylinders were bonded together with One-Step and then sectioned into an array, there was little variation in regional bond strength (37 ± 1 MPa). Dividing bonded resin composite buildups into an array of 20 to 30 1 × 1 × 8 mm beams allows for the evaluation of uniformity of resin-dentin bonds. The method used in this study detected local regional differences in resin-dentin bond strengths. The largest differences were shown to be related to technique rather than to material. The results indicate that resin-dentin bonds may not be as homogenous as was previously thought.",
keywords = "Adhesion, Bond strength, Dentin bonding",
author = "Y. Shono and T. Ogawa and M. Terashita and Carvalho, {R. M.} and Pashley, {E. L.} and Pashley, {David Henry}",
year = "1999",
month = "1",
day = "1",
doi = "10.1177/00220345990780021001",
language = "English (US)",
volume = "78",
pages = "699--705",
journal = "Journal of Dental Research",
issn = "0022-0345",
publisher = "SAGE Publications Inc.",
number = "2",

}

TY - JOUR

T1 - Regional Measurement of Resin-Dentin Bonding as an Array

AU - Shono, Y.

AU - Ogawa, T.

AU - Terashita, M.

AU - Carvalho, R. M.

AU - Pashley, E. L.

AU - Pashley, David Henry

PY - 1999/1/1

Y1 - 1999/1/1

N2 - During the development of the microtensile bond-testing method, large variations in bond strengths were noted among serial sections. The reason for these variations is unknown. The purpose of this work was to determine the consistency of resin-dentin bond strengths across the occlusal surface of coronal dentin by dividing composite resin buildups into an array of 1 × 1 mm beams, the top half consisting of composite resin, and the bottom half consisting of dentin. Extracted human third molars had the occlusal enamel removed as a single section by means of a diamond saw. Resin composite buildups were made after the dentin was bonded with either One-Step or MacBond. After being stored in 37°C water for 1 day, the teeth were vertically sectioned at 1-mm increments into slabs of bonded teeth. Each slab was further subdivided by vertical sections into 1 × 1 × 8 mm beams. Each beam was assigned an x-y coordinate and tested for tensile bond strength. Two different clinicians (A and B) performed the same procedures using One-Step in a parallel study. Using One-Step, clinician A obtained a large number of zero bonds in superficial dentin but fewer in deep dentin. This resulted in a very large standard deviation in bond strengths (mean ± SD of 22 ± 20 MPa in superficial dentin and 27 ± 14 MPa in deep dentin). Clinician B obtained much higher (p < 0.001) and more uniform bond strengths with One-Step (56 ± 13 MPa in superficial dentin and 57 ± 12 MPa in deep dentin). With MacBond, there were no zero bonds and hence less variation, with a mean of 41 ± 13 MPa in superficial dentin and 27 ± 12 MPa (x̄ ± SD) in deep dentin. When pairs of Z100 resin composite cylinders were bonded together with One-Step and then sectioned into an array, there was little variation in regional bond strength (37 ± 1 MPa). Dividing bonded resin composite buildups into an array of 20 to 30 1 × 1 × 8 mm beams allows for the evaluation of uniformity of resin-dentin bonds. The method used in this study detected local regional differences in resin-dentin bond strengths. The largest differences were shown to be related to technique rather than to material. The results indicate that resin-dentin bonds may not be as homogenous as was previously thought.

AB - During the development of the microtensile bond-testing method, large variations in bond strengths were noted among serial sections. The reason for these variations is unknown. The purpose of this work was to determine the consistency of resin-dentin bond strengths across the occlusal surface of coronal dentin by dividing composite resin buildups into an array of 1 × 1 mm beams, the top half consisting of composite resin, and the bottom half consisting of dentin. Extracted human third molars had the occlusal enamel removed as a single section by means of a diamond saw. Resin composite buildups were made after the dentin was bonded with either One-Step or MacBond. After being stored in 37°C water for 1 day, the teeth were vertically sectioned at 1-mm increments into slabs of bonded teeth. Each slab was further subdivided by vertical sections into 1 × 1 × 8 mm beams. Each beam was assigned an x-y coordinate and tested for tensile bond strength. Two different clinicians (A and B) performed the same procedures using One-Step in a parallel study. Using One-Step, clinician A obtained a large number of zero bonds in superficial dentin but fewer in deep dentin. This resulted in a very large standard deviation in bond strengths (mean ± SD of 22 ± 20 MPa in superficial dentin and 27 ± 14 MPa in deep dentin). Clinician B obtained much higher (p < 0.001) and more uniform bond strengths with One-Step (56 ± 13 MPa in superficial dentin and 57 ± 12 MPa in deep dentin). With MacBond, there were no zero bonds and hence less variation, with a mean of 41 ± 13 MPa in superficial dentin and 27 ± 12 MPa (x̄ ± SD) in deep dentin. When pairs of Z100 resin composite cylinders were bonded together with One-Step and then sectioned into an array, there was little variation in regional bond strength (37 ± 1 MPa). Dividing bonded resin composite buildups into an array of 20 to 30 1 × 1 × 8 mm beams allows for the evaluation of uniformity of resin-dentin bonds. The method used in this study detected local regional differences in resin-dentin bond strengths. The largest differences were shown to be related to technique rather than to material. The results indicate that resin-dentin bonds may not be as homogenous as was previously thought.

KW - Adhesion

KW - Bond strength

KW - Dentin bonding

UR - http://www.scopus.com/inward/record.url?scp=0033278214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033278214&partnerID=8YFLogxK

U2 - 10.1177/00220345990780021001

DO - 10.1177/00220345990780021001

M3 - Article

C2 - 10029469

AN - SCOPUS:0033278214

VL - 78

SP - 699

EP - 705

JO - Journal of Dental Research

JF - Journal of Dental Research

SN - 0022-0345

IS - 2

ER -