Abstract |
Fractured teeth are difficult to treat effectively. Currently, such as root fractures are usually treated by full-coverage restoration, root amputation, or tooth extraction. If the fusion of tooth fracture by laser were possible, it could offer a different therapy to repair fracture teeth. We tried to use a developed DP-bioactive glass paste to fuse or bridge the tooth crack line by a medium energy continuous-wave CO2 laser. The present report was focused on the phase transformation and rescrystallization of DP-bioactive paste during expose to the CO2 laser. The materials will examine by means of XRD, FTIR, DTA/TGA, and SEM. From the study, we could expect that the temperature increase due to laser irradiation must be over than 900 degrees C and the DP-bioactive glass paste could be melted in a short period of time after irradiation. In the study, we successfully developed a DP-bioactive glass paste which could form a melting glass within minutes after exposed to a medium energy density continuous-wave CO2 laser. The paste will be used to bridge the enamel or dentine surface crack by the continuous-wave CO2 laser in the near future.
|
Authors | Y C Tseng, F H Lin, C P Lin, W H Lan, J D Liao |
Journal | Biomedical sciences instrumentation
(Biomed Sci Instrum)
Vol. 35
Pg. 285-90
( 1999)
ISSN: 0067-8856 [Print] United States |
PMID | 11143363
(Publication Type: Journal Article)
|
Chemical References |
- DP-bioactive glass paste
- Dental Cements
|
Topics |
- Dental Cements
(chemistry)
- Humans
- In Vitro Techniques
- Lasers
- Microscopy, Electron, Scanning
- Spectroscopy, Fourier Transform Infrared
- Tooth Fractures
(therapy)
- Tooth Root
(injuries)
- X-Ray Diffraction
|