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Root surface smoothness or roughness following open debridement. An in vivo study
L Schlageter1, E M Rateitschak-Plüss, J P Schwarz
1Department of Cariology and Periodontology, Dental Institute, University of Basle, Switzerland.
Journal of Clinical Periodontology
|May 1, 1996
Summary
Different instruments create varying root surface roughness after periodontal cleaning. Smoothest surfaces resulted from curettes and fine diamonds, while sonic and ultrasonic scalers roughened them.
Area of Science:
- Periodontal therapy
- Biomaterials science
- Dental instrument analysis
Background:
- Optimal root surface characteristics post-cleaning remain undefined.
- The impact of various instruments on root surface topography is unclear.
Purpose of the Study:
- To evaluate the roughness and smoothness of root surfaces after cleaning with different instruments.
- To compare the effects of hand-driven, machine-driven, and ultrasonic/sonic scalers on root surface topography.
Main Methods:
- Human clinical study involving 18 teeth scheduled for extraction.
- Root surfaces were treated with Gracey curette (GC), piezo ultrasonic scaler (PUS), Perioplaner curette (PPC), sonic scaler (SS), 75 microns diamond (75 D), or 15 microns diamond (15.D).
- Surface roughness (Ra) and mean roughness depth (Rz) were measured using planimetry after extraction.
Main Results:
- Hand- and machine-driven curettes, along with fine diamond instruments (15.D), produced the smoothest root surfaces.
- Sonic scalers (SS), ultrasonic scalers (PUS), and coarse diamond instruments (75 D) tended to increase root surface roughness.
- Significant differences in root surface topography were observed based on the instrument used.
Conclusions:
- The choice of instrument significantly influences the resulting root surface texture.
- Smoother root surfaces are achieved with curettes and fine diamonds.
- Further research is needed to determine whether a rough or smooth root surface promotes better periodontal tissue healing.