Low-level laser therapy affects osseointegration in titanium implants: resonance frequency, removal torque, and histomorphometric analysis in rabbits

• 영문명: Low-level laser therapy affects osseointegration in titanium implants: resonance frequency, removal torque, and histomorphometric analysis in rabbits
• 발행기관: 대한구강악안면외과학회
• 저자명: Jong-Ryoul Kim Sung-Hee Kim In-Ryoung Kim Bong-Soo Park Yong-Deok Kim
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제42권 제1호, 2~8쪽, 전체 7쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2016.02.28

영문 초록

Objectives: The purpose of this study was to investigate the effects of low-level laser therapy (LLLT) with a diode gallium-aluminum-arsenide (GaAl-As) low-level laser device on the healing and attachment of titanium implants in bone. Materials and Methods: Thirteen New Zealand white male rabbits weighing 3.0±0.5 kg were used for this study. Dental titanium implants (3.75 mm in diameter and 8.5 mm in length, US II RBM plus fixture; Osstem, Seoul, Korea) were implanted into both femurs of each rabbit. The rabbits were randomly divided into a LLLT group and a control group. The LLLT was initiated immediately after surgery and then repeated daily for 7 consecutive days in the LLLT group. Six weeks and 12 weeks after implantation, we evaluated and compared the osseointegration of the LLLT group and control group, using histomorphometric analysis, removal torque testing, and resonance frequency analysis (RFA). The results were statistically significant when the level of probability was 0.05 or less based on a non-parametric Mann-Whitney U-test. Results: The implant survival rate was about 96%. Histologically and histomorphometrically, we observed that the titanium implants were more strongly attached in LLLT group than in control group. However, there was no significant difference between the LLLT group and control group in removal torque or RFA. Conclusion: Histologically, LLLT might promote cell-level osseointegration of titanium implants, but there was no statistically significant effects.

목차

I. Introduction

II. Materials and Methods

III. Results

IV. Discussion

V. Conclusion

키워드

Lasers Bone density Animal experiments Dental implants Titanium