Related Experiment Video
Updated: Jul 24, 2025

Characterization Of Multi-layered Fish Scales Atractosteus spatula Using Nanoindentation, X-ray CT, FTIR, and SEM
Published on: July 10, 2014
Root surface changes following manual and ultrasonic instrumentation - a scanning electron microscopic study
J Wasti1, P L Ravishankar, A Wasti
1Department of Periodontics, Government Dental College, Raipur, Chhattisgarh, India. dr.ravipatil@gmail.com.
Objective:
The aim of this study is to assess the efficacy of hand and ultrasonic scaling and to evaluate the surface roughness on the root surface of periodontally involved teeth using a scanning electron microscope.
Patients And Methods:
A sample of 90 single-rooted teeth with a hopeless prognosis was selected for the study and divided into three separate groups. Group I consist of no treatment. In Group II, hand scaling was done using Gracey curettes, and in Group III, ultrasonic scaling was done. The teeth were then extracted and fixed in 10% formaldehyde solution for 24-48 hours and subjected to scanning electron microscopic (SEM) evaluation.
Results:
The SEM analysis revealed that the remaining calculus index was found to be similar in the ultrasonic group and the hand scaling group, whereas the surface roughness was found to be the least in the ultrasonic group.
Conclusions:
Hand instrumentation has resulted in more surface roughness as compared to ultrasonic instruments.
More Related Videos
11:47Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments
Published on: February 27, 2013
10:27The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
Published on: October 11, 2016
Related Concept Videos
Scanning Electron Microscopy
Fundamental Principles
Accelerated...
Overview of Microscopy Techniques