Biological Bone Augmentation (Bone Harvesting and Transplantation of Autogenous Bone)
The patient has been in an accident in the past which resulted in the loss of two teeth. The patient has been wearing a removable partial denture (RPD) ever since and is now seeking to upgrade to a more permanent solution.
From the CBCT scan, it is shown that there is also a horizontal and vertical bony defect (full-dimensional bone loss) at the area of the missing teeth. From within the CBCT’s virtual planning software, a “virtual implant” is pre-planned and placed at the desired location of the site.
This area of missing bone will need to be “rebuilt” in order for implants to be placed.
Two implants are placed freehandedly at the desired position.
Bone is harvested from inside of the mouth and “bone shells” are created from these. The “bone shells” are then cut into smaller sections and made to fit and follow the curvature of the bone. They are used as wall barriers and help to contain bone particles that are made to a smaller size.
Bone particles (of sizes 250 microns – 1 mm), which are also harvested from inside of the mouth, are packed into the spaces within the “bone shells”. Excess bone particles are added around the implant sites.
Tension-free wound closure is applied to the area and the implant site is allowed to heal for a desiginated period of time. Later, it is re-entered for the next stage of treatment leading to the final fabrication of the implant prosthesis.