Kumar Pawan, Das Swarga Jyoti, Sonowal Saindhya Tora, Chawla Jitendra
Senior Resident, Department of Periodontics, Oral Health Science Centre, Post Graduate Institute of Medical Education and Research , Chandigarh, India .
Professor and HOD, Department of Periodontics, Regional Dental College , Bhangagarh, Guwahati, Assam, India .
J Clin Diagn Res. 2015 Nov;9(11):ZC56-60. doi: 10.7860/JCDR/2015/13744.6828. Epub 2015 Nov 1.
Instrumentation on tooth surface for debridement of hard and soft debris forms the basis of periodontal therapy. This involves periodic removal of accumulated material using different methods of instrumentation. An ideal instrument should eliminate all the deposits from the root surfaces with no or minimal alteration of the natural morphology.
To compare the root surface roughness after root planing performed with gracey curette and by ultrasonic scalers (Satelec P-5 Booster) set at different power modes.
The root surface roughness and its surface microtopography resulting from the use of Gracey curette, ultrasonic instrument at low, medium and high power setting on 35 healthy premolars extracted for orthodontic treatment purpose were examined using Optical Profilometer and the surface topography was assessed using Field Emission Microscope.
Analysis of variance (ANOVA) test was used to observe the variance in a particular variable is partitioned into components attributable to different sources of variation. Duncan multiple range tests were used to determine whether three or more means differ significantly.
The mean roughness was found to be the highest in group where Scaling and Root Planing (SRP) was performed using ultrasonic scaler at low power mode (3.03±1.54 μm) whereas the lowest surface roughness was seen on the samples where SRP was performed using ultrasonic scaler at medium power mode. The surface roughness in group where SRP was performed with ultrasonic scaler at high power mode (2.22±0.74μm) was found to be similar to that of group in which root planing was carried out using curette (2.24±1.71μm).
对牙齿表面进行器械操作以清除软硬污垢是牙周治疗的基础。这涉及使用不同的器械操作方法定期清除积聚的物质。理想的器械应能清除根面上的所有沉积物，且对天然形态的改变最小或没有改变。
比较使用格雷斯刮治器和设置不同功率模式的超声洁牙机（Satelec P - 5 Booster）进行根面平整后的根面粗糙度。
使用光学轮廓仪检查因正畸治疗目的拔除的35颗健康前磨牙，在使用格雷斯刮治器、低、中、高功率设置的超声器械后产生的根面粗糙度及其表面微观形貌，并使用场发射显微镜评估表面形貌。
方差分析（ANOVA）测试用于观察特定变量的方差如何被划分为归因于不同变异来源的成分。邓肯多重范围测试用于确定三个或更多均值是否存在显著差异。
发现使用低功率模式超声洁牙机进行龈上洁治和根面平整（SRP）的组中平均粗糙度最高（3.03±1.54μm），而使用中功率模式超声洁牙机进行SRP的样本表面粗糙度最低。发现使用高功率模式超声洁牙机进行SRP的组的表面粗糙度（2.22±0.74μm）与使用刮治器进行根面平整的组（2.24±1.71μm）相似。
