1[1]Luthardt RG, Stoβel M, Hinz M, et al. Clinical performance and periodontal outcome of temporary crowns and fixed partial dentures: A randomized clinical trial[J]. J Prosthet Dent, 2000, 83(1):32~ 39
3[3]Lewinstein I, Fuhrer N, Ganor Y. Effect of a fluoride varnish on the margin leakage and retention of luted provisional crowns[J]. J Prosthet Dent, 2003, 89(1): 70~75