ラット抜歯窩治癒過程に及ぼす低出力レーザーの影響 (第2報)

Abstract

We have already reported at the ninth meeting of this academy some opinions on radiological observations of the healing process of experimentally induced extract cavities irradiated with low energy laser. This time, we reported further opinions on radiological observations of the healing process.(1) From the radiographic and macroscopic observations, there were no significant differences between the laser-irradiated groups and non-irradiated (control) groups at any period of the observation.(2) On the three and four-minute irradiated groups, the new generation and expansion of the vascular system were slightly more energetic at three and seven days after irradiation on the microangiographic specimens.(3) In microradiographic specimens of the three-minute irradiated group, the widespread generation of trabecular bone from the cavity wall as well as the cavity bottom was observed on the seventh and 14th days after tooth extraction.(4) The vascular and bony conditions of the ten-minute irradiated groups were as energetic as the non-irradiated (controll) group for any observed specimens.