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| Schematic diagram showing implant components and how a crown is placed on implant which in turn placed in a bony socket in the jaw bone |
Implant supported prostheses that include over-dentures, crowns and bridges are the treatment of choice in modern dentistry. They are very predictable in nature and have a track record of very successful life span serving their purpose. But, there are certain conditions where the dental implants cannot be provided due to the inherent nature of the disease. The implant supported prostheses are contraindicated in the following conditions:
- Immune disorders (leukemia)
- Cancer
- Disorders of coagulation (anticoagulants, liver cirrhosis, thrombocytopenia, tendency to hemorrhage)
- Rheumatoid disease (steroid medication)
- Unstable endocrine disorders
- Chemotherapy (i.e. bisphosphonates) and radiotherapy within the last 5 years
- Patients under 16 years old (incomplete development of bones)
- Psychosis
- Pregnancy