Examination of tooth pulp following laser beam irradiation

Leslie Serebro, Trevor Segal*, Daniel Nordenberg, Colin Gorfil, Moshe Bar‐Lev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


An attempt was made to determine the maximum amount of laser energy which could be utilized without impairing pulpal vitality. Forty rat molar teeth were irradiated in vivo; the Sharplan CO2 laser modality, focused to a 0.2‐mm‐diameter spot size was used. The energy output was varied by changing the power and/or the pulse duration. Subsequent histological examination of the irradiated teeth showed that the duration of exposure was more significant than the power. A pulse of 0.2 sec/10 W appears to be the safety limit in preserving pulpal vitality.

Original languageEnglish
Pages (from-to)236-239
Number of pages4
JournalLasers in Surgery and Medicine
Issue number3
StatePublished - 1987


  • histology
  • rat
  • tooth pulp
  • vitality


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