Basal implants are the most advanced implants, successful for any condition of bone. Basal implants can be used on patients with any bone density and any bone volume. Basal implants engage the highly dense cortical bone which has least propensity for resorption. Basal bone is present in everyone, despite severe bone loss due to gum disease or loss of teeth. As such, they are highly recommended for patients who are in need of bone grafts and sinus lift.
There are no absolute contraindications for basal implants.
Basal implants are very successful in the following conditions:
- less bone volume needing bone grafts and sinus lift
- less bone density,
- gum disease and infected teeth,
- and regular bone which will eventually shrink with time.
How can Basal Implants be placed in deficient bone without bone grafts and sinus lift
Bone maintains its shape, as long as there is function associated with it. The alveolar bone appears and disappears with the presence of teeth. In contrast, the basal bone is maintained by the stimulus of the muscles inserted into it. These muscles always maintain the form, shape and density of the basal bone. The bone density is very high where muscles are inserted on the bone surface. This bone is very resistant to resorption and infection.
Conventional Implants Vs Basal Implants
- Conventional implants or axial implants are placed through the 1st cortex and then their tip rests in the spongy bone.
- The implant requires adequate density and volume of bone. For inadequate bone, bone grafting and sinus lift is needed.
- After few years, crestal bone loss results in loss of cortical bone support and loss of implant.
- Simple to place in the bone and does not need extensive training.
- Basal implants are inserted through the 1st cortex and then through the 2nd cortex, with the threads of the tip actively engaging the 2nd cortex.
- As the implant engages cortex of basal bone it is not dependent on bone density or bone volume.
- After few years despite bone loss, the implant is firmly engaged in the basal bone.
- Placing the Basal implants needs extensive training and knowledge of anatomy. It is technique sensitive.