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HOME > Restor Dent Endod > Volume 30(1); 2005 > Article
Original Article COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM
Min-Jo Lee, Sang-Hyuk Park, Gi-Woon Choi,*
J Korean Acad Conserv Dent 2005;30(1):-15.
DOI: https://doi.org/10.5395/JKACD.2005.30.1.7
Published online: January 14, 2005

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*Corresponding author: Gi-Woon Choi, Dept of Conservative Dentistry, Division of Dentistry, Graduate school of KyungHee University 1, Hoegi Dong, Dongdaemoon Gu, Seoul, 130-702, Korea, Tel : 82-2-958-9336 E-mail : gwchoi@khu.ac.kr
• Received: July 1, 2004   • Revised: August 18, 2004   • Accepted: November 23, 2004

Copyright © 2005 The Korean Academy of Conservative Dentistry

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • The purpose of this study was to compare the sealing ability of root canal obturation with or without the use of dentin adhesive system. Forty extracted human teeth with one canal were selected and decoronated. The teeth were divided into two Groups. The obturation procedure of Group 1 was the same as that of Group 2 with the exception of dentin adhesive system. Group 2 were obturated with dentin adhesive system, AH-26, and gutta-percha.
    After obturation, the teeth were immersed in methylene blue solution for 84 hours. The teeth were sectioned horizontally at 1.5 mm (Level 1), 2.0 mm (Level 2), 2.5 mm (Level 3) from the root apex using a low speed microtome. Distance of dye-penetrated surface and total dentinal surface were measured using SigmaScan Pro 5.0, and the ratio of dye-penetrated distance to the total dentinal distance was analyzed statistically by Mann-Whitney U-test.
    1. In both groups, the mean leakage ratio was decreased cervically.

    2. At level 1, there was no significant difference between group 1 and grpup 2 (p > 0.05).

    3. At level 2 and 3, group 1 showed significantly higher mean leakage ratio than group 2 (p < 0.05). The results suggest that using dentin adhesive system in root canal obturation procedure reduces the apical microleakage.

Figure 1.
Mean leakage ratio in each group
jkacd-30-7f1.jpg

Group 1. Continuous wave of obturation technique without dentin bonding system.

Group 2. Continuous wave of obturation technique with dentin bonding system.

Figure 2.
Representative photograph of the group without All-Bond 2. Level 1 (× 40)
jkacd-30-7f2.jpg
Figure 3.
Representative photograph of the group without All-Bond 2. Level 2 (× 40)
jkacd-30-7f3.jpg
Figure 4.
Representative photograph of the group without All-Bond 2. Level 3 (× 40)
jkacd-30-7f4.jpg
Figure 5.
Representative photograph of the group with All-Bond 2. Level 1 (× 40)
jkacd-30-7f5.jpg
Figure 6.
Representative photograph of the group with All-Bond 2. Level 2 (× 40)
jkacd-30-7f6.jpg
Figure 7.
Representative photograph of the group with All-Bond 2. Level 3 (× 40)
jkacd-30-7f7.jpg
Table 1.
Materials used in this study
Products Main Components Manufacturer
All-Bond 2 Etchant 32% Phosphoric acid
Primer A Acetone, Bisco Inc.
Na-N-tolyglycine glycidylmethacrylate (IL, U.S.A)
Primer B Acetone, biphenyl dimethacrylate
Adhesive Bis-GMA, UDMA, HEMA

AH-26 Powder Bismuth phosphate
Hexamethylenetetramine Dentsply De Trey (U.S.A)
Liquid Bisphenoldiglycidyl ether

Gutta percha cones Zinc oxide, gutta percha Diadent (Korea)

Bis-GMA = Bisphenol-A glycidyl methacrylate

UDMA = Urethane dimethacrylate

HEMA = Hydroxyethyl methacrylate

Table 2.
Mean leakage ratio and statistical analysis for each obturation technique
Obturation Group Level 1 Level 2 Level 3
1 0.893 ± 0.242 0.758 ± 0.312* 0.420 ± 0.315*
2 0.896 ± 0.199 0.312 ± 0.254* 0.058 ± 0.119*

Mean ± SD

1. Continuous wave of obturation technique without dentin bonding system.

2. Continuous wave of obturation technique with dentin bonding system.

Level 1 : 1.5 ㎜ from the apex, Level 2 : 2.0 ㎜ from the apex, Level 3 : 2.5 ㎜ from the apex.

*statistically significant at P < 0.05.

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    COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM
    Image Image Image Image Image Image Image
    Figure 1. Mean leakage ratio in each group
    Figure 2. Representative photograph of the group without All-Bond 2. Level 1 (× 40)
    Figure 3. Representative photograph of the group without All-Bond 2. Level 2 (× 40)
    Figure 4. Representative photograph of the group without All-Bond 2. Level 3 (× 40)
    Figure 5. Representative photograph of the group with All-Bond 2. Level 1 (× 40)
    Figure 6. Representative photograph of the group with All-Bond 2. Level 2 (× 40)
    Figure 7. Representative photograph of the group with All-Bond 2. Level 3 (× 40)
    COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM
    Products Main Components Manufacturer
    All-Bond 2 Etchant 32% Phosphoric acid
    Primer A Acetone, Bisco Inc.
    Na-N-tolyglycine glycidylmethacrylate (IL, U.S.A)
    Primer B Acetone, biphenyl dimethacrylate
    Adhesive Bis-GMA, UDMA, HEMA

    AH-26 Powder Bismuth phosphate
    Hexamethylenetetramine Dentsply De Trey (U.S.A)
    Liquid Bisphenoldiglycidyl ether

    Gutta percha cones Zinc oxide, gutta percha Diadent (Korea)
    Obturation Group Level 1 Level 2 Level 3
    1 0.893 ± 0.242 0.758 ± 0.312* 0.420 ± 0.315*
    2 0.896 ± 0.199 0.312 ± 0.254* 0.058 ± 0.119*
    Table 1. Materials used in this study

    Bis-GMA = Bisphenol-A glycidyl methacrylate

    UDMA = Urethane dimethacrylate

    HEMA = Hydroxyethyl methacrylate

    Table 2. Mean leakage ratio and statistical analysis for each obturation technique

    Mean ± SD

    1. Continuous wave of obturation technique without dentin bonding system.

    2. Continuous wave of obturation technique with dentin bonding system.

    Level 1 : 1.5 ㎜ from the apex, Level 2 : 2.0 ㎜ from the apex, Level 3 : 2.5 ㎜ from the apex.

    statistically significant at P < 0.05.


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