The effects of a single course of a calculus-softening scaling and root planing gel. A scanning electron microscopic study

J Periodontol. 1998 Jul;69(7):806-11. doi: 10.1902/jop.1998.69.7.806.


The effect of a calculus scaling gel was evaluated as an adjunct to instrumentation in a double blind, split-mouth, clinical study. Fifteen comparable periodontally involved teeth from 5 patients were instrumented on the mesio-buccal root surface with the aid of either the test gel, placebo gel, or no gel until smoothness was achieved. Test or placebo gel was applied subgingivally for 10 minutes. Instrumentation time, ease, number of strokes, and gingival/tooth surfaces changes were recorded. Scanning electronic microscopic (SEM) evaluation of root surface topography was evaluated. The results demonstrated effective calculus removal in all treatment groups with no differences found between them. Instrumentation time, ease, and number of strokes were similar for all treatment groups. There were no harmful effects to soft or hard tissues. The results of this study do not support the use of calculus scaling gel as an adjunct to root instrumentation.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Analysis of Variance
  • Cellulose / analogs & derivatives*
  • Cellulose / therapeutic use
  • Chelating Agents / therapeutic use
  • Dental Calculus / therapy*
  • Dental Calculus / ultrastructure
  • Dental Scaling / methods*
  • Dentifrices / therapeutic use*
  • Double-Blind Method
  • Edetic Acid / therapeutic use
  • Efficiency
  • Humans
  • Male
  • Microscopy, Electron, Scanning
  • Middle Aged
  • Outcome Assessment, Health Care
  • Root Planing / methods
  • Tooth Root / ultrastructure


  • Chelating Agents
  • Dentifrices
  • SofScale Scaling Gel
  • Cellulose
  • Edetic Acid