Colorimetric comparison of single layered dental composite with double layered dental composite

Young-Sang Song; Ja-Hyun Kim; Bin-Na Lee; Ji-Hyun Jang; Hoon-Sang Chang; Yun-Chan Hwang; Won-Mann Oh; In-Nam Hwang

doi:10.5395/rde.2012.37.2.84

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Research Article Colorimetric comparison of single layered dental composite with double layered dental composite: Young-Sang Song, DDS, MSD, Ja-Hyun Kim, DDS, MSD, Bin-Na Lee, DDS, MSD, Ji-Hyun Jang, DDS, MSD, Hoon-Sang Chang, DDS, PhD, Yun-Chan Hwang, DDS, PhD, Won-Mann Oh, DDS, PhD, In-Nam Hwang, DDS, PhD; Restorative Dentistry & Endodontics 2012;37(2):84-89.
DOI: https://doi.org/10.5395/rde.2012.37.2.84
Published online: May 18, 2012

Department of Conservative Dentistry, Chonnam National University School of Dentistry and DSRI, Gwangju, Korea.

Correspondence to In-Nam Hwang, DDS, PhD. Professor, Department of Conservative Dentistry, Chonnam National University School of Dentistry. 77 Youngbong-ro, Buk-gu, Gwangju, Korea 500-757. TEL, +82-62-530-5819; FAX, +82-62-530-5629; hinso@jnu.ac.kr

• Received: December 30, 2011 • Revised: February 13, 2012 • Accepted: February 24, 2012

©Copyights 2012. The Korean Academy of Conservative Dentistry.

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Abstract
ARTICLE INFORMATION
REFERENCES

Abstract

Objectives
This study analyzed the difference in color caused by different thickness in enamel layer of composite resins when applied with single and layering placement technique, and evaluated if the results agreed with the shade guide from the manufacturers to verify reliability of the color matching process of the manufacturers.
Materials and Methods
For single composite resin samples, 6 mm diameter and 4 mm thickness cylindrical samples were fabricated using Ceram-X mono (DENTSPLY DeTrey) and CIE L^*a^*b^* values were measured with spectrophotometer. Same process was done for layering composite resin samples, making 3 dentinal shade samples, 4 mm thickness, for each shade using Ceram-X duo (DENTSPLY DeTrey) and enamel shade resins were layered in 2 mm thickness and CIE L^*a^*b^* values were measured. These samples were ground to 0.2 mm thickness each time, and CIE L^*a^*b^* values were measured to 1 mm thickness of enamel shade resin.
Results
Color difference (ΔE^*) between single and layering composite resin was 1.37 minimum and 10.53 maximum when layering thicknesses were between 1 mm and 2 mm and 6 out of 10 same shade groups suggested by manufacturer showed remarkable color difference at any thickness (ΔE^* > 3.3).
Conclusion
When using Ceram-X mono and duo for composite resin restoration, following the manufacturer's instructions for choosing the shade is not appropriate, and more accurate information for Ceram-X duo is needed on the variation and expression of the shades depending on the thickness of the enamel.
Keywords: Colorimetric comparison; Composite resin; Resin shade; Spectrophotometer

ARTICLE INFORMATION

No potential conflict of interest relevant to this article was reported.

REFERENCES

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Figure 1

Color differences between single composite and double composite according to the thickness of the double composite.

Table 1

The two composite resin investigated

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 2

Manufacturer's shade guide of Ceram-X mono and duo offered by DENTSPLY DeTrey

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 3

CIE L^*a^*b^* average values of all composite resin sample, 4 mm thick, investigated with spectrophotometer in this study

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 4

Color differences between Ceram-X Mono and Ceram-X Duo

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

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REFERENCES

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Colorimetric comparison of single layered dental composite with double layered dental composite

Restor Dent Endod. 2012;37(2):84-89. Published online May 18, 2012

DOI: https://doi.org/10.5395/rde.2012.37.2.84

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Figure

Colorimetric comparison of single layered dental composite with double layered dental composite

Figure 1 Color differences between single composite and double composite according to the thickness of the double composite.

Figure 1

Colorimetric comparison of single layered dental composite with double layered dental composite

Table 1

The two composite resin investigated

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 2

Manufacturer's shade guide of Ceram-X mono and duo offered by DENTSPLY DeTrey

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 3

CIE L^*a^*b^* average values of all composite resin sample, 4 mm thick, investigated with spectrophotometer in this study

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 4

Color differences between Ceram-X Mono and Ceram-X Duo

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 1 The two composite resin investigated

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 2 Manufacturer's shade guide of Ceram-X mono and duo offered by DENTSPLY DeTrey

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 3 CIE L*a*b* average values of all composite resin sample, 4 mm thick, investigated with spectrophotometer in this study

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.

Table 4 Color differences between Ceram-X Mono and Ceram-X Duo

M, Ceram-X mono; E, Ceram-X duo enamel shade; D, Ceram-X duo dentin shade.