All Ceramic Materials in Dentistry: Past, Present and Future: A Review

Fixed partial dentures (FPDs) with high-strength all-ceramicsystems are necessary for replacing missing teeth. Widerange of materials and methods are available to fabricate arestoration outside the mouth and subsequently integratewith a tooth. The traditional methods of ceramic fabricationhave been described to be time-consuming, techniquesensitive, and rather unpredictable due to the many variablespresent which affect the outcome. All-ceramic restorations,has become a segment of dentistry which has experiencedtremendous improvements in the recent years. The increasinguse of polycrystalline alumina and zirconia as frameworkmaterials and the increasing popularity and variety ofcomputer-aided design and computer-aided manufacturing(CAD-CAM) systems seem to be mutually accelerating trendsover the last three decades. This article presents a review ofthe development of all-ceramic restorations, including theevolution and development of materials, technologies andhow to improve the strength of all-ceramic restorations, withrespect to survival, applications, strength, color, and aesthetics.The literature demonstrates that multiple all-ceramic materialsand systems that are currently available for clinical use andconcludes there is not a single universal material or, systemavailable to suit for all clinical situations.

Sucesso previsível como resultado do trabalho em equipe: reabilitação oral complexa usando cerâmica pura: parte 2 / Predictable success as a result of teamwork: complex full-mouth rehabilitation using all-ceramics: part 2

A escolha dos materiais e dos passos do tratamento exigidos somente deverá ser iniciada quando as metas finais do tratamento estiverem totalmente definidas. Desse modo, será possível obter-se sincronização entre eles, para possibilitar resultado com sucesso. Nesta segunda parte do artigo, os autores mostram um modo sistemático para a confecção de reabilitações orais em casos complexos. A primeira parte deste artigo tratou do eficiente planejamento e da seleção de materiais cerâmicos apropriados, esta segunda parte é dedicada aos procedimentos da fabricação e incorporação de restaurações extensas.

Only if the treatment goals have been well defined before the treatment is started may the range of materials and the required treatment steps be synchronized with each other and streamlined towards a successful outcome. In this two-part article Prof. Dr Daniel Edelhoff and Oliver Brix present a systematic way to the full-mouth rehabilitation of complex cases. The first part deals with the efficient planning and targeted selection of appropriate ceramic materials. This part is dedicated to the fabrication and incorporation of extensive restorations.

Sucesso previsível como resultado do trabalho em equipe: reabilitação oral complexa usando cerâmica pura: parte 1 / Predictable success as a result of teamwork: complex full-mouth rehabilitation using all-ceramics: part 1

A infinidade de materiais e as etapas de tratamento necessárias poderão ser sincronizadas e eficientes, no sentido de um desfecho de sucesso, somente se os objetivos do tratamento forem definidos antes de seu início. Neste artigo de duas partes, os autores apresentam um modo sistemático para a confecção de reabilitações orais em casos complexos. A primeira parte do artigo trata do eficiente planejamento e da seleção de materiais cerâmicos apropriados...

Only if the treatment goals have been well defined before the treatment is started may the range of materials and the required treatment steps be synchronized with each other and streamlined towards a successful outcome. In this two-part article Prof. Dr Daniel Edelhoff and Oliver Brix present a systematic way to the full-mouth rehabilitation of complex cases. The first part deals with the efficient planning and targeted selection of appropriate ceramic materials...

Marginal Fidelity And Fracture Strength Of Ips Empress 2(R) Ceramic Crowns According To Different Cement Types / 대한치과보철학회지

There has been increasing use of IPS Empress 2(R)owing to easy fabrication method, high esthetics similar to natural teeth, good marginal accuracy, and sufficient fracture strength. However, in clinical application, although a luting agent and the tooth cementation bonding procedure influence the marginal accuracy and fracture strength restoration, there has been a controversy in the selection of proper luting agent. This study was to measure the marginal fidelites and fracture strength of IPS Empress 2(R) crowns according to three cement types, Protec cem(R), Variolink II(R) and Panavia 21(R). After construction of 12 experimental dies for each group, IPS Empress 2(R)crowns were fabricated and luted the metal master die prepartion of the maxillary right premolar. Marginal gaps before cementation and after cementation were measured. Buccal incline on the functional cusp of specimens were loaded until the catastrophic failure and fracture strength was measured. The results of this study were as follows: 1. The range of gap was 34.04 +/- 4.84 micro meter before cementation and 37.88 +/- 5.00 micro meter after cementation, which showed significant difference by paired t-test (p0.05). 2. The difference in the results from marginal accuracy according to three cement types proved that The Variolink II(R) cement group had the least gap, 35.43 +/- 5.03 micro meter, and showed superior marginal accuracy while there existed statistic significance in Protec cem(R) cement group, 39.06 +/- 4.41 micro meter or Panavia 21(R)cement group, 39.16 +/- 4.39 micro meter by two-way ANOVA test and multiple range test (p<0.05). 3. The difference in the results from fractures strength testing according to three cement type groups proved to be statistically significant (p<0.05). The Variolink II(R) cement group shows the highest fracture strength of 1257.33 +/- 226.77 N, Panavia 21(R)cement group has 1098.08 +/- 138.45 N, and Protec cem(R) cement group represents the lowest fracture strength of 926.75 +/- 115.75 N. 4. Three different cement groups of different components showed acceptable marginal fidelity and fracture strength. It is concluded that IPS Empress 2(R)crowns luted using Variolink II(R) cement group had stronger fracture strength and smaller marginal gap than the other cement groups. Although Variolink II(R) resin cement seemed acceptable to clinical applications in IPS Empress 2(R)system, the IPS Empress 2(R)system still requires long-term research due to the lack of data in clinical applications