Surface Roughness Prediction in Rotary Ultrasonic Machining of Zirconia Dental Ceramic Using RSM. International Journal of Mechanical Engineering Research and Technology , [S. l.], v. 14, n. 3, p. 1–8, 2022. Disponível em: https://ijmert.com/index.php/ijmert/article/view/96. Acesso em: 29 apr. 2026.