Abstract |
Sealing of exposed dentinal tubules is generally considered the most effective strategy to treat dentin hypersensitivity. On this account, we fabricated a DP-bioglass paste that created a homogeneous blockage on open dentinal tubules and formed a deep precipitate within dentinal tubules. DP-bioglass paste was prepared by mixing 20% to 60% phosphoric acid and DP-bioglass to treat dentin surfaces. CO2 laser irradiation was used to melt the DP-bioglass paste. The results demonstrated that 30% phosphoric acid was the optimum concentration to produce homogeneous occlusion on exposed dentinal tubules and 60 microm of sealing depth. CO2 laser irradiation could melt the DP-bioglass paste and create about 10 microm of sealing depth. Moreover, temperature rise during CO2 laser irradiation was only 4.86 +/- 0.47 degrees C. The results presented in this work suggested that DP-bioglass paste could produce considerable sealing depth in dentinal tubules with the potential of prolonging the therapeutic effect efficaciously.
|
Authors | Bor-Shiunn Lee, Hsin-Yi Tsai, Yi-Ling Tsai, Wan-Hong Lan, Chun-Pin Lin |
Journal | Dental materials journal
(Dent Mater J)
Vol. 24
Issue 4
Pg. 562-9
(Dec 2005)
ISSN: 0287-4547 [Print] Japan |
PMID | 16445019
(Publication Type: Journal Article)
|
Chemical References |
- DP-bioactive glass paste
- Dental Cements
- Phosphoric Acids
- phosphoric acid
|
Topics |
- Adolescent
- Adult
- Crystallography, X-Ray
- Dental Cements
(chemistry, pharmacology, therapeutic use)
- Dentin
(ultrastructure)
- Dentin Permeability
(drug effects)
- Dentin Sensitivity
(drug therapy)
- Hot Temperature
- Humans
- Lasers
- Microscopy, Electron, Scanning
- Molar
- Phosphoric Acids
- Spectrometry, X-Ray Emission
|