Wu, Allen K.2023-03-242023-03-2419971997https://hdl.handle.net/2144/45953PLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please click Download and log in with a valid BU account to access. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.Thesis (M.Sc.D.)--Boston University, Goldman School of Dental Medicine. Dept. of Endodontics, 1997.Includes bibliography: leaves 145-152.en-USThis work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.Dental InstrumentsThesis/Dissertation