Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (30): 5581-5585.doi: 10.3969/j.issn.2095-4344.2012.30.015

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Effect of low-level laser on the healing of bone tissues around the implant in tibia of Beagle dogs

Fan Qin1, Xu Shi-tong2, Liu Jian-guo1, Lü Cong3   

  1. 1Department of Oral Implantology, Stomatological Hospital Affiliated to Zunyi Medical College, Zunyi 563003, Guizhou Province, China;
    2Affiliated Stomatological Hospital of Southern Medical University, Implant Center of Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China; 3Yantai Stomatological Hospital, Yantai 264001, Shandong Province, China
  • Received:2011-12-09 Revised:2012-04-25 Online:2012-07-22 Published:2012-07-22
  • Contact: Xu Shi-tong, Master, Chief physician, Affiliated Stomatological Hospital of Southern Medical University, Implant Center of Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China xushitong621016@126.com
  • About author:Fan Qin★, Master, Lecturer, Department of Oral Implantology, Stomatological Hospital Affiliated to Zunyi Medical College, Zunyi 563003, Guizhou Province, China fanqin.12345@163.com

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Abstract:

BACKGROUND: There is no definitive conclusion for the effect of low-level laser irradiation on the healing and osseointegration of bone tissues around the implant.
OBJECTIVE: To investigate the effect of low-level He-Ne laser irradiation on the healing of bone tissues around the implant.
METHODS: Thirty-six implants were randomly divided into three groups and planted into both sides of tibia of six Beagle dogs. The dogs were received low-level He-Ne laser irradiation for 1 and 2 weeks, but the dogs in the control group did not receive laser irradiation. Two dogs were randomly euthanized at 4, 8 and 12 weeks respectively.
RESULTS AND CONCLUSION: Methylene blue-acid fuchsin staining showed that the healing degrees of the bone tissue around the implant were higher by laser irradiation. Bone histomorphome showed that the bone-implant contact ratio was gradually increased in a time-depend manner; at the same time points, the bone-implant contact ratio was highest in the 2-week irradiation group, and followed by 1-week irradiation group. The results revealed that the locally low-level He-Ne laser irradiation could promote the healing of bone tissue around the implant and increase the degree of osseointegration.

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