A study was made of 223 crowns and 48 bridges which had been fabricated for 116 patients at the Prosthetic Clinic of Matsumoto Dental College from January through December 1974. The results obtained were as follows: 1) Of patients, 54.31% were males and 45.69% were females. 2) 88.80% of the patients were between 20 and 59 years old. 3) Crowns for the upper abutment teeth were more in number than the lower abutment teeth. 4) Of crowns, 55.36% were fabricated as full cast crowns; and 5) 24.46% were fabricated for vital teeth. 6) Of bridges, 64.31% were fabricated as three-unit bridges; and 7) 70.83% were fabricated as one-pontic bridges. 8) Bridge retainers for the lower anterior segment were fewer in number than for the other segments. 9) Of bridge retainers, 68.52% were fabricated as full cast crowns; and 10) 56.48% were fabricated for vital teeth. 11) Of pontics, 45.16% were replaced for the lower molar segment.
昭和49年における冠・架工義歯補綴に関する統計的観察
