Certain medical and dental conditions may make dental implants unsuitable for some people.  Implants maynot be suitable for the following common reasons:

• Smoking

• Unstable gum disease

• Patients taking some medications for osteoporosis

• Patients taking or have taken Bisphosphonate medicines (e.g. Alendronate)

• Diabetic patients

• Where the other teeth are mobile or moving

• Where the adjacent teeth have dental infections which may spread to the implant during healing

• Bleeding disorders

• Medical conditions causing poor healing

• Previous chemotherapy and radiotherapy

• Poor oral hygiene

• A low motivation to care for teeth, as implants require maintenance.