Preliminary study on the osseointegration effects of contactless automated implant cavity preparation via femtosecond laser ablation
Shanshan Liang, Jianqiao Zheng, Fusong Yuan
Abstract
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.
Topics & Concepts
OsseointegrationMaterials scienceBiomedical engineeringImplantAblationFemtosecondLaserLaser ablationDental implantEx vivoLaser scanningDentistryIn vivoOpticsLaser beamsLaser Applications in Dentistry and MedicineDental Implant Techniques and OutcomesLaser-Ablation Synthesis of Nanoparticles