1Egelberg J.local effects of diet on the plauqe formation and gingivitis development in dogs.ⅠEffects of hard and soft diets[J].Odontologisk Revy,1965 16(1):31-41.
2Harvey CE,Shofer FS,Laster L.Correlation of diet,other chewing activities and periodontal disease in north american client-owned dogs[J].Journal of Veterinary Dentistry,1996,13(3):101-105.
3Slack GL,Martin WJ.Apples and dental health[J].British Dental Journal,1958,105:366-371.
4Blignaut JB,Grobler SR.High fruit consumption and the periodontal status of farm workers[J].Clinical preventive Dentistry,1992,14(2):25-28.
5Enwonwu CO,Phillips Rs,Falkler WA Jr.Nutrition and oral infectious diseases:state of the science[J].The Compendium of Continuing education in Dentistry,2002,23(5):431-436.
6Nishida M,Grossi SG,Dunford RG,et al.Calcium and the risk for periodontal diseases[J].Journal of Periodontology,2000,71(7):1057-66.
7Nishida M,Grossi SG,Dunford RG,et al.Dietary vitamin C and the risk for periodontal diseases[J].Journal of Periodontology,2000,71(8):1215-1223.
8Parrish JH Jr,Demarco TJ,Bissada NF.Vitamin E and periodontitis in the rat[J].Oral Surgery,Oral Medicine,and oral Pathology,1977,44(2):210-218.
9Vogel RI,Fink RA,Schneider LC,et al.The effect of folic acid on gingival health[J].Journal of Periodontology,1976,47(11):667-668.
10Vogel RI,Fink RA,frank O,et al.The effect of topical application of folic acid on gingival health[J].Journal of Oral Medicine,1978,33(1):22-23.
