Ciantar Marilou
Prim Dent J. 2014 Aug;3(3):38-42. doi: 10.1308/205016814812736592.
Non-surgical periodontal treatment has traditionally been based on the notion that bacterial plaque (dental biofilm) penetrates and infects dental cementum. Removal of this infected cementum via scaling and root planing (SRP) was considered essential for re-establishing periodontal health. In the 1980s the concept of SRP was questioned because several in vitro studies showed that the biofilm was superficially located on the root surface and its disruption and removal could be relatively easily achieved by ultrasonic instrumentation of the root surface (known as root surface debridement (RSD). Subsequent in vivo studies corroborated the in vitro findings. There is now sufficient clinical evidence to substantiate the concept that the deliberate removal of cementum by SRP is no longer warranted or justified, and that the more gentle and conservative approach of RSD should be implemented in daily periodontal practice.
传统上，非手术牙周治疗基于这样一种观念，即细菌菌斑（牙生物膜）会侵入并感染牙骨质。通过龈下刮治和根面平整术（SRP）去除这种受感染的牙骨质被认为是恢复牙周健康的关键。在20世纪80年代，SRP的概念受到质疑，因为多项体外研究表明，生物膜位于牙根表面浅层，通过牙根表面的超声器械操作（称为根面清创术（RSD））相对容易破坏和去除生物膜。随后的体内研究证实了体外研究结果。现在有足够的临床证据支持这样的观念，即通过SRP故意去除牙骨质不再必要或合理，并且在日常牙周治疗实践中应采用更温和、保守的RSD方法。
