A Study on the Psychological Noise Reduction Effect on Dental Handpiece Noise through the Bone Conduction Speaker Equipped Unit Chair and Notch-Filtered Music

Anxiety in dental patients has caused inconvenient experiences during their visits due to the noise generated by handpiece. High-frequency sounds handpiece have been challenging reduce using active control method that targets low-frequency sounds, as well difficulty applying sound-absorbing materials, because size of is small. As an alternative, a can and provide stability playing music being studied. However, most studies, there are inconveniences such need turn volume higher cover or having wear headphones play music. In this study, order inconvenience optimize reduction effect music, we propose technology converts into sound masking unit chair equipped with bone conduction speaker plays through clinical trials 35 patients, it was confirmed proposed system made emotionally stable. addition, analyzing causes these emotional changes, suggests preferred genre should also be considered.