CHUN-PIN LINChou H.-G.Chen R.-S.Lan W.-H.Hsieh C.-C.2021-07-262021-07-2619990099-2399https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033201680&doi=10.1016%2fS0099-2399%2899%2980352-5&partnerID=40&md5=354221d4b70247779106f32120953e81https://scholars.lib.ntu.edu.tw/handle/123456789/572681Root deformation during root-end preparationjournal article10.1016/S0099-2399(99)80352-5106875252-s2.0-0033201680