Clinical evaluation of the marginal fit of cast crowns--validation of the silicone replica method.

Replication of the space between a tooth and its cast crown, using a light-body silicone supported by a heavy-body silicone, is a recognized technique to evaluate the quality of a restoration. This study validates a similar method that is of great clinical and experimental interest. Whatever the type of silicone used, comparison is possible between different technical procedures of crown elaboration (type of impression, type of material, method of spacing, etc.). If an appropriate silicone is used, the cement space may be reproduced and its thickness measured, whatever the localization (cervical, axial, occlusal).

[1]  F Lutz,et al.  Clinical evaluation of a new pressed glass ceramic inlay material over 1.5 years. , 1992, Quintessence international.

[2]  K. Boening,et al.  Clinical fit of Procera AllCeram crowns. , 2000, The Journal of prosthetic dentistry.

[3]  J. Mclean,et al.  The estimation of cement film thickness by an in vivo technique , 1971, British Dental Journal.

[4]  J R Holmes,et al.  Marginal fit of electroformed ceramometal crowns. , 1996, Journal of prosthodontics : official journal of the American College of Prosthodontists.

[5]  S Karlsson,et al.  A clinical evaluation of fixed bridges, 10 years following insertion. , 1986, Journal of oral rehabilitation.

[6]  C J Goodacre,et al.  The effect of tooth preparation form on the fit of Procera copings. , 1998, The International journal of prosthodontics.

[7]  S Karlsson,et al.  The fit of Procera titanium crowns. An in vitro and clinical study. , 1993, Acta odontologica Scandinavica.

[8]  M. MacEntee,et al.  Evaluation of ceramic margins for metal-ceramic restorations. , 1985, The Journal of prosthetic dentistry.

[9]  P Pera,et al.  In vitro marginal adaptation of alumina porcelain ceramic crowns. , 1994, The Journal of prosthetic dentistry.

[10]  D Nathanson,et al.  Effects of cement, cement space, marginal design, seating aid materials, and seating force on crown cementation. , 1992, The Journal of prosthetic dentistry.

[11]  J Chai,et al.  A comparison of the marginal fit of In-Ceram, IPS Empress, and Procera crowns. , 1997, The International journal of prosthodontics.

[12]  S. Bayne,et al.  Considerations in measurement of marginal fit. , 1989, The Journal of prosthetic dentistry.

[13]  G H Johnson,et al.  Marginal adaptation of castable ceramic crowns. , 1991, The Journal of prosthetic dentistry.

[14]  S N White,et al.  In vivo marginal adaptation of cast crowns luted with different cements. , 1995, The Journal of prosthetic dentistry.

[15]  A H Tjan,et al.  Comparison of the marginal fit of various ceramic crown systems. , 1989, The Journal of prosthetic dentistry.

[16]  H S Cardash,et al.  In vivo retrospective study of cement thickness under crowns. , 1998, The Journal of prosthetic dentistry.

[17]  R P Chappell,et al.  Marginal fit of porcelain-fused-to-metal and two types of ceramic crown. , 1990, The Journal of prosthetic dentistry.

[18]  G Oilo,et al.  The fit of metal-ceramic crowns, a clinical study. , 1985, Dental materials : official publication of the Academy of Dental Materials.

[19]  M I MacEntee,et al.  Fit of three porcelain-fused-to-metal marginal designs in vivo: a scanning electron microscope study. , 1985, The Journal of prosthetic dentistry.