TY  - GEN
AU  - Yu,Donald C
AU  - Tam,Alphonsus
AU  - Schilder,Herbert
TI  - Patency and envelope of motion--two essential procedures for cleaning and shaping the root canal systems
SN  - 0363-6771
PY  - 2010///0201
KW  - Humans
KW  - Root Canal Preparation
KW  - instrumentation
KW  - Tooth Apex
N1  - Publication Type: Journal Article
ER  -