Diode Laser 조사가 가토경골의 골재형성에 미치는 영향에 관한 연구
The Effect of Diode Laser Radiation on the Bone Remodelling in Rabbit"s Tibia
강봉기, 천재식,
소속 상세정보
강봉기 ( Kang Bong-Ki ) - 단국대학교 치과대학 구강생리학교실
천재식 ( Chun Gae-Sig ) - 단국대학교 치과대학 구강생리학교실
KMID : 0829220100340060369
Abstract
Currently, Low-level laser therapy (LLLT) is widely used in medicine and dentistry. It has been suggested that LLLT may be beneficial in management of many different medical conditions, including pain, wound healing and nerve injury. Stimulation with LLLT can enhance bone repair as reported in experimental studies on bone defects and fracture healing also. As far as hard tissue is concerned, the biostimulating effect of laser has been demonstrated more rapid healing of tibial bone fracture in mice. This study was performed to compare new bone formation between with LLLT and without LLLT. Two cylinder implants(5mm diameter, 5mm length) were implanted on rabbit"s tibia. LLLT was done to one implant with 632mm diode laser. And than Rabbit"s were sacrificed after 2nd, 4th, 6th, 8th weeks after implantation. Bone with implant were removed and fixed with 10% formaline. Undecalfied sample were prepared after spurr low resin embedding. Sample were grind and polished to 100㎛. The results were as follows. The amount of trabeclue of experimental group
were superior to that of control group from 2 weeks to 8 weeks. There were no difference in arrangement of trabecule between two groups. Bone implant contact were significantly increased at 4th weeks in experimental group. The number of ostecytes in trabecule were different at 4th weeks experimental group. Osteone were appeared dominantly at 6th weeks experimental group, while at 8th weeks experimental group were superior than control group. LLLT group showed increased amount of trabecule, bone implant contact, number of osteocytes & osteone. It suggested that LLLT might be increase the bone formation rate and accelerate the bone formation time.
키워드
Diode Laser Radiation; Bone Remodelling; Rabbit"s Tibia
원문 및 링크아웃 정보
등재저널 정보