Dental implant placement is a very safe and effective procedure. However there are very few contraindications to dental implant placement such as:
- Relative contraindications
- Absolute contraindications and
- Local contraindications
Relative contraindications: Relative contraindications for dental implants are diabetes, angina pectoris, radiation therapy on neck and head, pregnancy and tobacco and alcohol dependents.
- Diabetes: Patients having diabetes with blood glucose level less than 150mg/dl have low risk of complications if special care is taken.
- Angina Pectoris: Angina pectoris is a pain in the chest or cardial muscle. Patients having a history of angina pectoris in the last two months can not undergo implants surgery.
- Radiation therapy on neck and head: Patients who are undergoing cancer therapy on neck and head are also not suitable for implants. It is suggested that better to avoid implant placement to avoid complications.
- Pregnancy: Pregnant women have contraindication to dental implants. The medicines used and the stress during surgery is not good for pregnant women.
- Tobacco and alcohol dependents: People who smoke more than 20 cigarettes per day are contraindication to implants. Smokers have less calcium absorption that leads to aging of bones.
Absolute contraindications are patients who are undergoing treatment for cancer, bone disorder, bi phosphate medications, immuno suppressants and hypertension.
- Cancer: Patients who are undergoing treatment for cancer have contraindication to implant placement.
- Bone disorders: Dental implants require enough jaw bone density. Bone disorders like osteoporosis is a contraindication to implant because it lowers the bone density which leads to failure of implant placement.
- Bi phosphate medications: Use of bi phosphates leads to death of jaw bones. Therefore patients who are undergoing bi phosphate medications are not suitable for implants.
- Immuno suppressants: Patients under the treatment of immuno suppressants are contraindication to implant placement as they suppress the immune system and it does not heal quickly.
- Hypertension: Hypertensive patients who are taking medicines will effect the implant process. The side effects of hypertensive drugs like hyperplasia are contraindication to the implant placement.
Local contraindications to dental implant placements are:
- Patients having low bone density and quality
- Patients having poor oral hygiene
- Patients suffering with dryness of mouth
- Patients with clenching of teeth
- Patients having mucous membrane related problems
- Patients having unbalanced relation with upper and lower teeth