[The effects of desensitizing bonding system for prevention of vital abutment hypersensitivity].

Abstract

OBJECTIVE:

To evaluate the effects of GLUMA desensitizing bonding system in desensitizing hypersensitivity of vital abutment.

METHODS:

69 central incisors with vital pulp from 69 patients were randomly divided into A, B and C group. After tooth preparation, group A coated with primer after etching, group B coated with primer after etching cervical dentin only, and group C was control group without special treatment. The cold sensitivity of abutments was tested after coating with primer, after cementation of crown and three months later. Two fresh extracted caries and restoration-free middle incisor were prepared in routine way. The surface of specimen 1 was etched with conditioner and the control specimen 2 was prepared without any special surface treatment. Scanning electron microscope (SEM) observation was used to examine the details on dentin surface.

RESULTS:

In all three times of examination, the sensitivities of two experimental groups had been significantly reduced compared with the control group. Immediately after coating, group B were more sensitive than group A (P < 0.05). After cementation of crown and three months later, there was no statistically significant between group A and group B. SEM photomicrograph showed that the smear layer was removed from etched dentine surface with open dentinal tubules.

CONCLUSION:

Coating with GLUMA desensitizing bonding system could prevent hypersensitivity of vital abutment.

• Authors: Huai-Qin Zhang, Yong-Lie Chao
• Journal: Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology (Hua Xi Kou Qiang Yi Xue Za Zhi) Vol. 23 Issue 2 Pg. 130-2 (Apr 2005) ISSN: 1000-1182 [Print] China
• PMID: 15952625 (Publication Type: English Abstract, Journal Article)

Chemical References

• Dentin-Bonding Agents
• Methacrylates
• gluma desensitizer
• Glutaral

Topics

• Acid Etching, Dental
• Cementation
• Dental Pulp
• Dentin
• Dentin Sensitivity (prevention & control)
• Dentin-Bonding Agents
• Glutaral
• Humans
• Methacrylates
• Microscopy, Electron, Scanning
• Smear Layer