[An experimental study of the effect of food on osteoporosis especially on the mandible].
Three-week-old male rats of the Wistar strain given standard formed food (MF formed food) were grouped as controls. Those given calcium-deficient food for three weeks and then standard formed food after experimental osteoporosis induced in the rats were grouped as the experimental group. Experimental periods were for 4 and 6 weeks and the effect of the food on osteoporosis was investigated. The results were as follows: 1. Bone density of the alveolar bone showed significantly lower values for the experimental group than for the controls. 2. In comparison of relative Ca ratios (Ca/[Ca]c) and of P ratios (P/[P]c) on an X-ray microanalyzer, the controls showed higher values each week than the experimental group. 3. Compressive strength of the mandible in the experimental group decreased compared with the controls.
Kimura
M
M
Department of Pedodontics, Kyushu Dental College.
Nishida
I
I
Maki
K
K
Kaku
A
A
Yanome
S
S
Takahashi
H
H
Matsuda
Y
Y
D000818:Animals; D001732:Bite Force; D015519:Bone Density; D002118:Calcium / Q000032:analysis / Q000172:deficiency*; D002136:Calcium, Dietary; D004577:Electron Probe Microanalysis; D008297:Male; D008334:Mandible / Q000503:physiopathology*; D010024:Osteoporosis / Q000503:physiopathology*; D010758:Phosphorus / Q000032:analysis; D051381:Rats; D011919:Rats, Inbred Strains
D002136:Calcium, Dietary; D010758:Phosphorus; D002118:Calcium