A program familiar to many consumers is that of the American Dental Association (ADA), a professional society which operates a program for certifying dental materials, instruments, and equipment, including toothpaste and tooth brushes.
(A program familiar to many consumers; is; that of the American Dental Association) (a professional society; operates; a program for certifying dental materials, instruments, and equipment, including toothpaste and tooth brushes)
A program familiar to many consumers a professional society
is operates
that of the American Dental Association
a program for certifying dental materials, instruments, and equipment, including toothpaste and tooth brushes