Dr. Coolidge was one of the initiators in organizing the American Association of Endodontists. In the AAE he served on the Advisory Committee and on the first Constitution and By-laws Committee. Dr. Coolidge was a Charter Member of the American Association of Endodontists as well as an honorary president of the Association. On February 4, 1957 he received the first Diplomate Certificate by the American Board of Endodontics, on which he was one of the nine signatories. When the AAE was finally recognized as a dental specialty in 1963, the American Board of Endodontics re-issued their first certificates in 1964 and once again, Dr. Coolidge was assigned certificate #1.
In 1946, Dr. Coolidge encouraged the members of the AAE that “the members of our association must inform themselves more and more about the nature of the tissues that we are called upon to treat. We must understand what provision nature has made to protect itself and to repair its injuries. We must take up the task of assisting nature by removal of obstacles that hinder or prevent her own mechanism of healing.” In perhaps Coolidge’s last scholarly paper (2), he admonished the profession to keep challenging our concepts. He noted that great progress has been made, but there are still many doors to open, much like what we face today. Dr. Louis I. Grossman summed up the man thus; “Dr. Coolidge will always be remembered not only as a dentist, teacher lecturer, author and researcher but also as a father figure and as a friend. One can only speak of him with words of endearment.” (3)
He was an honorary member of the Edgar D. Coolidge Endodontic Study Club.
Edgar David Coolidge passed away on August 12, 1967 at the age of 86.
1. Grossman LI, Endodontics 1776-1976: a bicentennial history against the background of general dentistry. JADA July 1976; 93:78-87
2. Coolidge ED. Past and present concepts in endodontics. JADA Dec. 1960; 61:676-688
3. Grossman LI. Pioneers in Endodontics. J Endod August 1987; 13:409-15