Esthetic restorative materials and opposing enamel wear.

This in vitro study compared the effects of a gold alloy (Degulor M), four dental ceramics (IPS Empress, IPS Empress 2, Duceram Plus, Duceram LFC) and a laboratory-processed composite (Targis) on the wear of human enamel. The amount of wear of the enamel (dental cusps) and restorative materials (disks) were tested in water at 37 degrees C under standard load (20 N), with a chewing rate of 1.3 Hz and was determined after 150,000 and 300,000 cycles. Before the test, the average surface roughness of the restorative materials was analyzed using the Ra parameter. The results of this study indicate that Targis caused enamel wear similar to Degulor M and resulted in significantly less wear than all the ceramics tested. IPS Empress provoked the greatest amount of enamel wear and Degulor M caused less vertical dimension loss. Targis could be an appropriate alternative material to ceramic, because it is esthetic and produces opposing enamel wear comparable to gold alloy.

[1]  S. Rosenstiel,et al.  Abrasion of Human Enamel by Different Dental Ceramics in vitro , 1991, Journal of dental research.

[2]  R. Smales,et al.  Differential wear of teeth and restorative materials , 2006 .

[3]  S. Suzuki,et al.  Enamel wear of modified porcelains. , 2000, American journal of dentistry.

[4]  M. Morris,et al.  Depth-resolved Raman microprobe examination of a commercial dental porcelain exposed to a simulated oral environment. , 1998, Dental materials : official publication of the Academy of Dental Materials.

[5]  J. Jankovic,et al.  Bruxism and cranial-cervical dystonia: is there a relationship? , 1999, Cranio : the journal of craniomandibular practice.

[6]  M. Marques,et al.  The effect of glazed and polished ceramics on human enamel wear. , 2006, The International journal of prosthodontics.

[7]  D C Jagger,et al.  An in vitro investigation into the wear effects of selected restorative materials on enamel. , 1995, Journal of oral rehabilitation.

[8]  B. Lawn,et al.  Lifetime-limiting Strength Degradation from Contact Fatigue in Dental Ceramics , 2000, Journal of dental research.

[9]  K. Leinfelder,et al.  Wear rates of posterior composite resins. , 1986, Journal of the American Dental Association.

[10]  M. Kern,et al.  Wear of composite resin veneering materials in a dual-axis chewing simulator. , 1999, Journal of oral rehabilitation.

[11]  P M Marquis,et al.  Two-body in vitro wear study of some current dental composites and amalgams. , 1999, The Journal of prosthetic dentistry.

[12]  M. Georgescu,et al.  Enamel wear caused by three different restorative materials. , 1995, The Journal of prosthetic dentistry.

[13]  G. M. Smith,et al.  The abrasive effect of glazed, unglazed, and polished porcelain on the wear of human enamel, and the influence of carbonated soft drinks on the rate of wear. , 1997, The International journal of prosthodontics.

[14]  M. Wiley.  Effects of porcelain on occluding surfaces of restored teeth. , 1989, The Journal of prosthetic dentistry.

[15]  G. M. Smith,et al.  Three-body wear associated with three ceramics and enamel. , 1999, The Journal of prosthetic dentistry.

[16]  W. Douglas,et al.  The wear of enamel opposing shaded ceramic restorative materials: an in vitro study. , 1992, The Journal of prosthetic dentistry.

[17]  P. Lambrechts,et al.  Buonocore memorial lecture. Evaluation of clinical performance for posterior composite resins and dentin adhesives. , 1987, Operative dentistry.

[18]  G. Christensen.  Cast gold restorations. Has the esthetic dentistry pendulum swung too far? , 2001, Journal of the American Dental Association.

[19]  Shiro Suzuki,et al.  In vitro wear of indirect composite restoratives. , 2002, The Journal of prosthetic dentistry.

[20]  K. Leinfelder,et al.  In vitro wear device for determining posterior composite wear. , 1999, Journal of the American Dental Association.

[21]  S. Jahanmir,et al.  Wear mechanism of a dental glass-ceramic , 1995 .

[22]  S C Bayne,et al.  Protection hypothesis for composite wear. , 1992, Dental materials : official publication of the Academy of Dental Materials.

[23]  S. Teoh,et al.  Effects of cyclic loading on occlusal contact area wear of composite restoratives. , 2002, Dental materials : official publication of the Academy of Dental Materials.

[24]  B H Miller,et al.  In vitro investigation of the wear of human enamel by dental porcelain. , 1999, The Journal of prosthetic dentistry.

[25]  P. Schmidlin,et al.  Attritional wear and abrasive surface alterations of composite resin materials in vitro. , 2002, Journal of dentistry.

[26]  C. Cox,et al.  Evaluating the antagonistic wear of restorative materials when placed against human enamel. , 1996, Journal of the American Dental Association.

[27]  E. Isogai,et al.  Chewing ability and quality of life among the elderly residing in a rural community in Japan. , 2000, Journal of oral rehabilitation.

[28]  D F Taylor,et al.  Studies on the wear of porcelain, enamel, and gold. , 1971, The Journal of prosthetic dentistry.

[29]  S. Teoh,et al.  Comparative wear ranking of dental restorative materials utilizing different wear simulation modes. , 1997, Journal of oral rehabilitation.

[30]  J. F. Bates,et al.  Masticatory function-a review of the literature: (II) Speed of movement of the mandible, rate of chewing and forces developed in chewing. , 1975, Journal of oral rehabilitation.

[31]  H. T. Shillingburg,et al.  A comparison of the abrasiveness of six ceramic surfaces and gold. , 1991, The Journal of prosthetic dentistry.

[32]  F. Kawano,et al.  Effect of leucite crystals on the strength of glassy porcelain. , 1994, Dental materials journal.

[33]  A. Ekfeldt,et al.  Wear resistance of some prosthodontic materials in vivo. , 1993, Acta odontologica Scandinavica.

[34]  R. Smales,et al.  Differential wear of teeth and restorative materials: clinical implications. , 2004, The International journal of prosthodontics.

[35]  G. B. Pelleu,et al.  Wear of human enamel against a commercial castable ceramic restorative material. , 1991, The Journal of prosthetic dentistry.