Abstract
In order to determine whether all eight polishing pastes currently on the market are capable of polishing efficiently and can make tooth surfaces smooth. We used stainless steel sheets with almost the same degree of hardness as human enamel and aluminum plates with almost the same degree of hardness as cementum as the test materials. We attached a rubber tooth brush to a toothbrush abrasion testing device and performed abrasion tests at a load of 1000 gf/cm2. The test materials were weighed, and microscopic observations of the center line roughness of the polished surfaces were made.The following results were obtained:
1) PP 3 had the ability to polish the stainless steel sheets, which corresponded to enamel, and to finish their surface smoothly.
2) Only polishing with PP 1 made the aluminum sheets, which corresponded to cementum, smoother than the untreated surface.
3) There is a risk of greatly shaving away stainless plates and aluminum plates with RDA 170 and RDA 250, and care is required when using them.
4) There were large flaws in the aluminum sheets and the stainless steel sheets on surfaces polished with COR, and its polishing properties were much greater than those of the other pastes.
