Dental equipment at risk of producing harmful noise levels as described in previous papers in the literature
| Equipment | Goswami et al 5 | Bahannan et al 8 | Singh et al 9 |
| High-speed handpiece | 79.3 | 78.98 | 73.9 |
| Low-speed handpiece | 65.4 | 71.89 | 72.6 |
| Suction—dry | |||
| Suction—wet | 73.9 | ||
| Ultrasonic bath | |||
| Ultrasonic scaler | 59.9 | 76.8 | |
| Steriliser | |||
| Trimmer | 95.5 | 77.51 | |
| Airline | |||
| Vibrating table | 73.7 |