共 30 条
[22]
MUHLEMANN HR, 1971, HELV ODONTOL ACTA, V15, P107
[24]
PINDBORG J J, 1951, Odontol Tidskr, V59, P403
[25]
Ramfjord SP, 1959, J PERIODONTOL, V30, P51, DOI DOI 10.1902/JOP.1959.30.1.51
[26]
STANMEYER WR, 1957, J PERIODONTOL, V28, P17
[27]
Stillman PR, 1932, DENT DIG, V38, P314
[28]
THEILADE ELSE, 1966, J PERIODONTAL RES, V1, P1, DOI 10.1111/j.1600-0765.1966.tb01842.x
[29]
WEINSTEIN E, 1967, PERIODONTICS, V5, P161
[30]
1966, WORLD WORKSOP PERIOD