COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM

Min-Jo Lee; Sang-Hyuk Park; Gi-Woon Choi

doi:10.5395/JKACD.2005.30.1.7

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Original Article COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM: Min-Jo Lee, Sang-Hyuk Park, Gi-Woon Choi^,*; Journal of Korean Academy of Conservative Dentistry 2005;30(1):7-15.
DOI: https://doi.org/10.5395/JKACD.2005.30.1.7
Published online: January 14, 2005

Dept of Conservative Dentistry, Division of Dentistry, Graduate school of KyungHee University

*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

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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Abstract
REFERENCES

Abstract

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.
Keywords: Dentin adhesive system; Root canal obturation; Sealing ability; Apical microleakage

Figure 1.

Mean leakage ratio in each group

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)

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)

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.

REFERENCES

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COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM

J Korean Acad Conserv Dent. 2005;30(1):7-15. Published online January 14, 2005

DOI: https://doi.org/10.5395/JKACD.2005.30.1.7

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Figure

COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM

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)

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

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.