[Guidelines in reference to the use of supplementary diagnostic tests for chronic periodontitis in Belgium].

The need and development of clinical guidelines for the diagnosis and treatment of chronic periodontitis in Belgium has been previously described. The use of supplementary diagnostic tests in this field is widespread. The question is whether the existing scientific evidence justifies the routine use of these tests in the diagnosis of chronic periodontitis. A thorough search of the literature was conducted in reference to microbiological testing as well as genetic testing for periodontitis.