%0 Journal Article %T Evaluation of root surface roughness after different kinds of treatment %A Felipe Rychuv SANTOS %A Tatiana Miranda DELIBERADOR %A Tertuliano Ricardo LOPES %A Andrea Maria SOUSA %J Perspectives in Oral Sciences %D 2009 %I %X Objective: To compare the root surface roughness after the use of three types of treatment indicated for scaling and root planning. Methods: Seventy-five single rooted extracted teeth due to periodontal involvement were used. The teeth were divided into three groups (n = 25) and treated with different kinds of instruments: Group 1 ¨C only Gracey curette was used, Group 2 ¨C Gracey curette associated with diamond curette and Group 3 ¨C Gracey curette associated with 24% EDTA gel. A roughness tester was used to verify the surface roughness and two parameters were evaluated: average surface roughness (Ra) and maximum distance between the highest peak and the lowest valley (Rt). Data were subjected to statistical analysis (oneway ANOVA with a global significance level of 5%). Results: No statistical differences were observed for the two roughness parameters. The mean Ra values were 1.81, 1.96 and 1.74,respectively for Groups 1, 2 and 3. For Rt, the means were 14.29, 14.42 and 12.60, respectively for Groups 1, 2 and 3. All values expressed in ¦Ìm. Conclusion: Within the limits of this study,it can be concluded that the roughness of root surfaces after scaling and root planning was similar between the three types of treatment evaluated. %K root scaling %K Periodontics %K EDTA %K tooth root %U http://poralsciences.up.edu.br/arquivos/poralsciences/File/PAGINAS%20POS%2031_34(1).pdf