{Reference Type}: English Abstract {Title}: [Guidelines for non-surgical treatment of chronic periodontitis in Belgium]. {Author}: Vandenbulcke W;Cosyn J;De Bruyn H; {Journal}: Rev Belge Med Dent (1984) {Volume}: 63 {Issue}: 3 {Year}: 2008 暂无{Abstract}: Non-surgical root debridement is usually the first step in the treatment of chronic periodontitis. This can be performed in one day or in multiple sessions over several weeks using manual instruments and/or power-driven instruments. Besides scaling and root planing, the removal of plaque-retaining factors and mechanical oral hygiene measures are essential for a favourable treatment outcome.