Dental Tribune Chinese Edition

www.dentistx.com 54 40 22 72 40 17 4.5 94.4% 100% 1998 30 1975 7 1998 2003 28 3 37 26 22 57(54% 46% ) 48 (65 35 ) 3 ( 1 2) 2.5cm3 0.6cm3 3 6 12 14 16mm 10 12 16mm 17 72 40 4 4 5 5 6 6 100% 8 72 4 94.4% 8 7 1.5 9 2001 3 4 92% 1999 2000 5 100 9 10 11 4 25 2046 6913 39 12 75 91.75% 87.7% 94.9% 96 4.5 ( 10 5 11 1 2 3 7 9 b 33 c 51 d 6 8 9