Ott KH.
Dtsch Zahnarztl Z. 1980 Aug;35(8):819-22.
PMID: 6160960

[No authors listed]
Jpn Dent J. 1965 Jun;2(1):47-53.
PMID: 5295630

[No authors listed]
Jpn Dent J. 1965 Jun;2(1):54-62.
PMID: 5295631

WAGNER RF.
J Am Coll Dent. 1950 Dec;17(4):423-33.
PMID: 14794328

Yadav R, Rai R.
Br Dent J. 2016 Jun 10;220(11):558. doi: 10.1038/sj.bdj.2016.394.
PMID: 27283547

[No authors listed]
Shikai Tenbo. 1984 Sep;64(3):540-56.
PMID: 6084871

ARNIM SS.
Tex Rep Biol Med. 1952;10(3):713-7.
PMID: 12984344