1. Endodontic cavity preparation;Ingle,1994
2. A new method of tooth length determination for endodontic practice;Best;Dent Dig,1960
3. A mathematical method of determining the length of a tooth for root canal treatment and filling;Bregman;J Can Dent Assoc,1950
4. Endodontic instruments and instrumentation;Ingle;Dent Clin North Am,1957
5. New method for measuring the length of the root canal;Sunada;J Dent Res,1962