DiBiaggio J.
New Dent. 1979 Feb;9(3):19-23.
PMID: 298637

Ishiki T.
Shikai Tenbo. 1979;54(6):969-72.
PMID: 296752

Ishikawa T, Uchida Y, Kikuchi S, Sato T, Suzuki K.
Nihon Shika Ishikai Zasshi. 1980;32(12):1338-54.
PMID: 6931181

Blair KP.
J Am Coll Dent. 1992;59(2):3-4.
PMID: 1401574

[No authors listed]
J Dent Educ. 1986 Sep;50(9):515-6.
PMID: 3462216

England N, Kasik D, Johnson C, Whitton M.
IEEE Comput Graph Appl. 2020 May-Jun;40(3):112-119. doi: 10.1109/MCG.2020.2983816.
PMID: 32356733

Cohen PA.
J Dent Educ. 1991 May;55(5):295-8.
PMID: 2026834