My earliest fillings were $4 each, I used to go to his office after school. Later in life, I started to get the new white fillings, I don't recall their price but today my fillings are $400 each.
To this date; I still don't take an injection to kill the pain during fillings. I believe its because with my generation during the 1950s was used to dentist saying "just sit there, and I will let you know when I'm done".. Those old drills looked like the belts reminded me of guitar strings driving them, and they had pleanty of joints, and pulleys to try to make them as manoverable as the human arm. By the way, NO water came out to cool the drilling. You could smell the burning of the tooth and even see what looked like smoke coming from your tooth, as it excaped from your mouth. As a boy, I could only see what he was doing by looking at the reflection coming from his thick eyeglasses.
By the way, you didn't lay down like you do today, you sat in a chair (much like a barber chair of the time). it had 2 pads that looked like ear muffs attached to seat's back. They met the back of your head, as you were put in the reclining position. All you could do was firmly squeezed the cast iron arm rest, as he slowly drilled away and you simply sat there, and endured. In N Y City the school made you go to the dentist every 6 months. Back in those days floride was absent in the tooth paste, most kids needed aprox 4 fillings every 6 months.
When the treatment was over (1 filling per week) you were given two $10. bills to pay the dentist.....Looking at the those $10s they seemed like a lot more than todays $100s !