Sounds like you have healthy teeth, but your comment is fairly ignorant of the fact that nearly everything you described isn't done by someone with a graduate medical degree, but generally is done by a dental assistant/hygienist . I wouldn't want someone to touch my teeth if they haven't practiced using the instruments in a classroom. This isn't a programming course..
> Dental assistants receive their formal education through academic programs at community colleges, vocational schools, technical institutes, universities or dental schools. Graduates of these programs usually receive certificates. Although the majority of academic dental assisting programs take nine to eleven months to complete, some schools offer accelerated training, part-time education programs or training via distance education. [0]
[0] https://www.ada.org/en/education-careers/careers-in-dentistr...