摘要
目的比较渗透树脂和氟化物涂布对离体乳前牙白垩色斑块龋损的修复效果及两者的渗透能力。方法收集有白垩色斑块的早期奶瓶龋损患儿的乳前牙40颗,并制成标本。将标本随机分为对照组和实验组,每组20颗。对照组牙齿标本采用氟化物涂抹于牙冠龋损表面,实验组牙齿标本采用渗透树脂涂抹于牙冠龋损表面。所有标本处理完成后均浸泡于人工唾液内6个月。比较标本处理后6个月两组的渗透百分数(PP)、L*值、白垩斑评分。分别于标本处理前、标本处理后3个月、标本处理后6个月、再脱矿后,比较两组牙釉质显微硬度值[维氏硬度值(VHN)]。结果标本处理后6个月,实验组的PP高于对照组(P<0.05),两组的L*值均较处理前降低,白垩斑评分均较处理前升高,且实验组L*值低于对照组,白垩斑评分高于对照组(均P<0.05)。两组标本处理后3个月、6个月及再脱矿后的牙釉质VHN均高于处理前,且实验组均高于对照组(均P<0.05)。结论与氟化物相比,渗透树脂在离体乳前牙白垩色斑块龋损的治疗中具有更强的渗透力,对釉质硬度、白垩斑的改善效果更佳。
Objective To compare the repair effect of penetrating resin versus fluoride coating on chalky plaque caries of isolated deciduous anterior teeth and their penetrating capacity.Methods Forty deciduous anterior teeth from early bottle caries children with chalky plaque were collected for preparing specimens.Specimens were randomly assigned to control group or experiment group,with 20 deciduous anterior teeth in each group.Teeth specimens of the control group were coated with fluoride on dental crown caries surface,and teeth specimens of the experiment group were coated with penetrating resin on dental crown caries surface.All specimens were immersed in artificial saliva for 6 months after specimen processing.The penetration percentage(PP),L*value,and chalky plaque score were compared between the two groups after 6 months of specimen processing.The enamel microhardness(Vickers Hardness Number[VHN])before specimen processing,after 3 and 6 months of specimen processing,and after demineralization was compared between the two groups,respectively.Results After 6 months of specimen processing,the experiment group yielded a higher PP as compared with the control group(P<0.05);furthermore,the L*value of both groups was decreased as compared with before processing,the chalky plaque score of both groups was elevated as compared with before processing,and the experiment group yielded a lower L*value and a higher score of chalky plaque score as compared with the control group(all P<0.05).After 3 and 6 months of specimen processing,and after demineralization,the enamel VHN was higher in both groups than that before processing,and was higher in the experiment group than the control group(all P<0.05).Conclusion Compared with fluoride,the penetrating resin has a stronger penetrating capacity in the treatment of chalky plaque caries of isolated deciduous anterior teeth,exerting superior improved effects on enamel hardness and chalky plaque.
作者
王芹
王蕊
胥爱文
WANG Qin;WANG Rui;XU Aiwen(Department of Stomatology,the First Affiliated Hospital of Hebei North University,Zhangjiakou 075000,Hebei,China)
出处
《广西医学》
CAS
2023年第14期1681-1684,1729,共5页
Guangxi Medical Journal
基金
河北省张家口市重点研发计划项目(2121095D)。
关键词
白垩色斑块龋损
乳前牙
渗透树脂
氟化物
渗透能力
修复力
离体标本
Chalky plaque caries
Deciduous anterior teeth
Penetrating resin
Fluoride
Penetrating capacity
Repairing force
Isolated specimens
