Treatment of dental root fracture by medium energy CO2 laser and DP-bioactive glass paste part II: Compositional, structure, and phase changes of DP-Bioglass paste after exposed to CO2 laser

Ya Chun Tseng, Feng Huei Lin, Chun Pin Lin, Wan Hong Lan, Jiunn-Der Liao

Research output: Contribution to journalConference article

1 Citation (Scopus)


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 CO, 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°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.

Original languageEnglish
Pages (from-to)285-290
Number of pages6
JournalBiomedical Sciences Instrumentation
Publication statusPublished - 1999 May 29
EventProceedings of the 1999 36th Annual Rocky Mountain Bioengineering Symposium (RMBS) and 36th International ISA Biomedical Sciences Instrumentation Symposium - Copper Mountain, CO, USA
Duration: 1998 Apr 161998 Apr 18


All Science Journal Classification (ASJC) codes

  • Biophysics
  • Medical Laboratory Technology

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