- Trephine Burs do not have a blade at the center
- Thus it will be rather difficult to get smooth cutting for a start.
- Enough exercise is recommended before use.
- After Trephine Burs penetrate into bone, then smooth cutting is available.
- Remained bone can be collected by surgical curettes.
- Enough cooling and possibly low speed are recommended to avoid heat damage to the bone.
- Thin cutting blade for minimum bone loss, with depth marking of 6/8/10/11.5/13/16 mm