The dentist should assess the general health condition of the patient, and also assess the insertion site prior to starting the procedure. Insertion of dental implants should be avoided in some patients (e.g. those with diabetes mellitus). The success rate for dental implants is lower in individuals that smoke, and/or who do not take the necessary care of their oral hygiene.
If a careful assessment has been made for the dental implant, and if the patient takes necessary care, the dental implants may stay in the mouth for many years without any problems.