Periodontology: a clinical approach. 1. Periodontal examination and screening.

Periodontology has witnessed some of the most intensive and extensive research in dentistry over the last 30 years. This has led to a much clearer understanding of the aetiology of periodontal diseases and clinical studies have done much to compare and improve treatment modalities. The wealth of literature can certainly lead to confusion but for the most part should ultimately result in a more rational application of diagnostic and treatment methods. This new series is based upon the authors' wide experience in clinical practice and interpretation of the scientific literature.