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Profilometric analysis of root surfaces after using various polishing agents.
Anjan Jana1, Abhijit Chakraborty1, Tamal Kanti Pal1
1Department of Periodontics, Guru Nanak Institute of Dental Sciences and Research, Panihati, Kolkata, India.
Journal of Indian Society of Periodontology
|April 5, 2016
Summary
Achieving ideal root surface smoothness (Ra <0.2 μm) for oral prophylaxis requires submicron-sized polishing particles. Standard polishing abrasives do not meet this critical smoothness standard for effective plaque control.
Area of Science:
- Dental hygiene
- Materials science
- Surface engineering
Background:
- Root surface smoothness is crucial in oral prophylaxis to prevent plaque accumulation.
- Previous polishing methods using various abrasive particle sizes have not been optimized for ideal surface smoothness (Ra <0.2 μm).
Purpose of the Study:
- To evaluate the ideal polishing material and particle size for achieving optimal root surface smoothness (Ra <0.2 μm).
Main Methods:
- Extracted human teeth underwent in vitro scaling and root planing.
- Polishing was performed using nylon bristle brushes and rubber cups at a constant speed.
- Surface roughness was evaluated using profilometry on control and experimental groups.
Main Results:
- Standard polishing abrasives (>5 μm) failed to achieve the desired surface smoothness (Ra <0.2 μm).
- Submicron-sized particles were necessary to attain the target surface smoothness.
Conclusions:
- Submicron-sized particles are essential for achieving the desired root surface smoothness (<0.2 μm) in oral prophylaxis.
- Current market abrasives are insufficient for optimal root surface preparation.

