TY  - RPRT
TI  - Direct bonding on impacted teeth.
AU  - I L Nielsen
AU  - U Prydso
AU  - T Winkler
PY  - 1975
DO  - 10.1016/0002-9416(75)90101-3
UR  - https://pubmed.ncbi.nlm.nih.gov/1106211/
ID  - 1106211
ER  -