Air-polishing Powder Transport in Comparison to Abrasion on Bovine Dentine
Objectives: Evaluation of powder transport and abrasion on bovine dentine using air-polishing powders in different commercial available devices to demonstrate that 3M ESPEs air-polishing powders (Clinpro™ Glycine Prophy Powder with TCP, Clinpro™ Prophy Powder) are compatible by comparison with classical bicarbonate powder. Methods: Abrasion on bovine dentine and powder transport of Clinpro™ Glycine Prophy Powder with TCP (3M ESPE), Clinpro™ Prophy Powder (3M ESPE) and Air-Flow® powder Classic (EMS) were analyzed using different commercial available devices (Cavitron Prophy Jet (Dentsply), Air-Flow® Handy 2, S1 Master Piezon (EMS), Turbodent, Easy Jet Pro (Mectron), Prophyflex 2/3 (KaVo)). For abrasion measurement five samples of bovine dentine were treated with air-polishing powders (max. filling of device, 4.3 mm distance, 5 s, 60°) using the devices listed above. The abrasion volume was analyzed by confocal laser scanning microscopy (Keyence). Powder transport was determined in triplicate by weighing the powder that was pooled during 30 s application. The setting of the devices was chosen as stated by the manufacturers. Results: In each tested device the abrasion caused by bicarbonate powder was much higher than that observed with glycine-based powders. The One-way ANOVA analysis revealed that the glycine-based powders were significantly different than bicarbonate powder (p<0,05). Powder transport and abrasion are not directly correlated that means that a high powder transport does not necessarily lead to higher dentine loss. Conclusions: The transport of powder and the abrasion are not always proportional. Abrasion depends on various parameters like size, hardness and shape of the powder particles and device adjustment. In general, the bicarbonate powder caused more loss of dentine compared to the other tested glycine-based powders. The tested devices can be safely used with Clinpro™ Glycine Prophy Powder with TCP, Clinpro™ Prophy Powder powders.
AADR/CADR Annual Meeting
2016 AADR/CADR Annual Meeting (Los Angeles, California) Los Angeles, California
2016 0404 Dental Materials 6: Instruments and Equipment
Gustafson, Melinda
( 3M ESPE
, St. Paul
, Minnesota
, United States
)
Rusin, Richard
( 3M ESPE
, St. Paul
, Minnesota
, United States
)
Syrek, Andreas
( 3M Deutschland GmbH
, Seefeld
, Germany
)
NONE
Poster Session
Instruments and Equipment I
Thursday,
03/17/2016
, 02:00PM - 03:15PM
Table. 1: Powder transport and abrasion of Clinpro™ Glycine Prophy Powder with TCP, Clinpro™ Prophy Powder and Air-Flow classic (EMS) bicarbonate powder by use of different devices, standard deviation is shown in brackets