1.A CONTRAST OBSERVATION ON APPLYING TWO DIFFERENT KINDS OF RESIN SPLINT TO THE FIXATION OF LOOSED TEETH
Jianzhong GOU ; Wenhong ZHU ; Jinqiu HAN
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(02):-
Two kinds of splint consisted of light-cured orselfcuring resin with nylon yarn were applied to fixthe loosed teeth caused by periodontitis. The re-sults showed that the light-cured resin with nylonyarn splint is much better than the self-cured resinwith nylon yarn splint (P
2.The effects of high relative molecular mass salivary mucin on the protection of tooth enamel against demineralization observed by electronic microscopy
Yan XU ; Jinqiu YUE ; Han JIANG
Journal of Practical Stomatology 2001;0(01):-
Objective: To observe the effect of purified high rela ti ve molecular mass mucin(MG1) pellicle on the protection of human dental enamel against demineralization.Methods: MGI was extracted from human saliva and purified.MGI pellicle and whole saliva pellicle were formed on dental enamel samples in vitro ,Then The samples were treated by 34 mmol/L citric acid for 1 min.The demineralization of the samples was observed by scanning electronic microscopy(SEM). Results:After treatment by the acid the enamel surfaces covered by MGI pellicles or whol e saliva pellicle showed relatively smooth and normal enamel morphological feat ures, on the contrary the surface without pellicle showed large area of deminer alization and bee nest like appearance. Conclusion: The data indicate that the MG1 in enamel pellicle contribute to its protective effec ts against acidic attack on the enamel surface.