多目的超音波ユニット(スプラソンP-MAX^[○!R])応用時の表面性状の変化について : 第2報チップ形状と表面損傷との関係(自然科学編)

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Root planing using Ultrasonic sealer is becoming increasingly popular, however, little is known about its effect on the root surface. The purpose of this study was to investigate the effects of the different power setting on the roughness of the root surfaces. The test was conducted on Suprasson P-MAX Ultrasonic Sealer, using Curette tip (H 4 R) and Diamond tip (H 2 R). The samples of the root specimen (Bovine) were cut from the extracted incisors, and were fixed individual in an acrylic block, using a light cured composite resin. All specimens were flattened by wet-grinding with 180-600 SiC and 5 μm alumina, under water. The root planing of the Bovine root surface was carried out with the Suprasson P-MAX handle attached to a dynamic testing machine. The test was run at sliding speed of 80 mm/min and moving a distance of 3 mm under a vertical load of 10g. The roughness was measured on six specimens for each tip by Ra and Rmax, using the surface profilometer (Surfcom120A) across the test area of the specimen in five different locations. In this investigation, the main findings were as follows : 1. There is a correlation between power setting and resulting rootsurface roughness. An increased power level (1-5) resulted in an increase in the amount of roughness. 2. The surface roughness after using a diamond tip was less than that of using curette tip. 3. The resultant root surface roughness is influenced by power levels and shapes of the tip used in the root planning procedure.
千葉県立衛生短期大学の論文

多目的超音波ユニット(スプラソンP-MAX^[○!R])応用時の表面性状の変化について : 第2報チップ形状と表面損傷との関係(自然科学編)

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