TY  - BOOK
AU  - Cochran, David L. (David Lee), 1952-
TI  - Plaque and calculus removal: considerations for the professional 
SN  - 867152850
AV  - RK 60.7 .C63 1994 
PY  - 1994///
CY  - [Place of publication not identifed]
PB  - [publisher not identified]
N1  - Plaque and calculus removal : considerations for the professional, Plaque
ER  -