Open AccessPreliminary study on the osseointegration effects of contactless automated implant cavity preparation via femtosecond laser ablation
Author(s) -
Shanshan Liang,
Jukuan Zheng,
Fusong Yuan
Publication year - 2021
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.446602
Subject(s) - osseointegration , implant , ablation , biomedical engineering , materials science , laser , femtosecond , laser ablation , dental implant , ex vivo , dentistry , in vivo , surgery , optics , medicine , biology , physics , microbiology and biotechnology
Microrobots were used to control the femtosecond laser ablation of bone tissues to prepare implant cavities for dental implant surgery. The method was optimized through depth-of-cut experiments of ex vivo rabbit femurs, and the optimized method was used to prepare implant cavities on the left femurs of eight live rabbits. A power of 10 W and a scanning rate of 4000 mm/s were found to be optimal. After seven days of osteoinduction, the expression of collagen type I was significantly higher in the experimental group than in the control group (manually drilled implant cavities). The bone-implant contacts of the experimental group at 4 and 8 weeks were 9.65% and 23.08%, respectively.