Table 1.

Indications and contraindicaations of basal impalnts

Indications	Contraindications
1. All kinds of situations when several teeth are missing or have to be extracted	1. Medical conditions: There are a number of medical conditions that preclude the placement of dental implants. Some of these conditions include recent myocardial infarction (heart attack) or cerebrovascular accident (stroke), immunosuppression (a reduction in the efficacy of the immune system)
2. When the procedure of two-stage implant placement or bone augmentation has failed	2. Medicines: Drugs of concern are those utilized in the treatment of cancer, drugs that inhibit blood clotting and bisphosphonates (a class of drugs used in the treatment of osteoporosis)
3. All kinds of bone atrophy i.e. in case of very thin ridges, insufficient buccolingual thickness,insufficient bone height