Ultrasonic and Sonic Scalers |
Considered the greatest source of aerosol contamination; use of a high-volume evacuator will reduce the airborne contamination by more than 95% |
Air-Water Syringe |
Bacterial counts indicate that airborne contamination is nearly equal to that of ultra-sonic scalers; high-volume evacuator will reduce airborne bacteria by nearly 99% |
Tooth Preparation with High Speed Handpiece |
Minimal airborne contamination if a rubber dam is used |
Tooth Preparation with Air Abrasion |
Bacterial contamination is unknown; extensive contamination with abrasive particles has been shown |