During dentistry, the use of ultrasonics (US) has risen significantly. Due to the predicted prognosis and convenience of operation, the utilisation of US in endodontics has expanded significantly during the past few decades. The purpose of this survey was to determine the knowledge, practise, and attitude of US general practitioners, postgraduates, and endodontists on endodontics. A questionnaire with sixteen questions about the knowledge, attitude, and practise of US in endodontics was distributed to general dentists, postgraduates, and endodontists, and responses were gathered online. Using IBM SPSS, the data were statistically analysed. The survey was completed by 212 dentists (95 general dentists, 80 endodontists, and 34 postgraduates). Eighty-nine percent of them were aware of the use of ultrasound in endodontics, 36.1% preferred the use of ultrasound in the removal of pulp chamber calcifications, pulp stones, access refinement, and troughing of hidden canals, and 61.4% selected 3% sodium hypochlorite for root canal irrigation with ultrasound.