Considering safety, they are absolutely safe and predictable to be used in the human body. Scientifically they don’t have any bad side effects. They only come with positive outcomes which are already mentioned above. Although, if you are the one to consider the worst case scenario, then the only loss that you may encounter would be an implant loss similar to your original tooth loss. That’s it, you would be back to how it started before the treatment. Since titanium dental implants are the most bio-compatible materials to be used they will never cause any side effects and function for you the whole of your life.