Example of MSDS Review - Nail Technician uses same chemicals placed in dental materials, specially root canals - acrylics, polishes and removers. Remember the gums are considered part of the skin according to Doctors (Dermatologists deals with this and sometimes have to communicate this with your Dentist).
Common MSDS (Material Safety Data Sheets) of Dental Materials
Example of Dental Office and some of their MSDS Sheets
Google search on: MSDS sheets dentist (See the chaos and irresponsibility)