A 40 year old male patient complains of decayed teeth. Class II cavity preparation was done under rubber dam isolation. Who introduced this method of isolation in dentistry?: (A) Sanford Barnum, (B) S. S. White, (C) Delous Palmer, (D) Jones and Reid
Answer is A. In 1864, S.C. Barnum, a New York City dentist, introduced the rubber dam into dentistry.​
Reference: Sturdevant’s Art and Science of Operative Dentistry, Mosby, 4th Edition, Page No: 445