ABSTRACT
La restauración ideal en los dientes tratados endodónticamente (DTE) ha sido un tema controversial y ampliamente discutido en la literatura odontológica. El alto índice de fracasos en los dientes endodónticos se asocia principalmente a la falta de un adecuado sellado coronario, motivo por el cual la restauración post endodóntica cumple un papel fundamental. Los propios tejidos del DTE constituyen el refuerzo más importante de la pieza dentaria. La odontología considerada hoy en día como ideal es la mínimamente invasiva. A su vez la restauración de elección deberá ser aquella que respete mayor cantidad de tejido remanente a la hora de seleccionar la restauración coronaria. Se deberá considerar la cantidad y la calidad del remanente dentario sano, como los requisitos funcionales de cada pieza en particular. Si bien existen diversos tipos de restauraciones que podrían rehabilitar un DTE, en este trabajo sólo nos referiremos a las de inserción rígida, específicamente a las endo-onlays, también denominadas endocrowns (AU)
Subject(s)
Humans , Female , Child , Tooth, Nonvital/rehabilitation , Crowns , Inlays , Argentina , Schools, Dental , Ceramics , Dental Restoration, Permanent , Flexural StrengthABSTRACT
Objective@#To evaluate the clinical efficacy of CAD/CAM glass-ceramic onlays in molars with complicated oblique crown fracture within 3.0 mm subgingival. @*Methods@#Fifty-six molars from 56 patients with complicated oblique crown fracture within 3.0 mm subgingival were recruited after endodontic treatment and divided into 2 groups according to the restorative methods used. The glass-ceramic onlays group was restored with CAD/CAM glass-ceramic onlays, while the all-ceramic crown group received CAD/CAM all-ceramic crowns. The success rates of the restorations were analyzed, and the sulcus bleeding index (SBI), plaque index (PLI), and gingival index (GI) were recorded at the prerestoration and postrestoration stages. @*Results @#After one year of follow-up, the success rate of the glass-ceramic onlay group was 96.4%, and the success rate of the all-ceramic crown group was 92.9%. The difference was not statistically significant (P > 0.05). No differences in SBI, PLI, or GI were found between the glass-ceramic onlay group and the all-ceramic crown group (P > 0.05).@*Conclusion@#Conclusion
ABSTRACT
Restaurações indiretas inlay/onlay utilizando materiais estéticos vem sendo utilizadas crescentemente em dentes posteriores, resultando em um aumento do uso de cerâmicas dentais antes restrita apenas ao tratamento em regiões anteriores. Uma nova opção restauradora são as resinas nanocerâmicas, intitulada de Lava Ultimate™, produto desenvolvido pela empresa 3M™ ESPE™ (Irvine, Califórnia, EUA). Desenvolvido especialmente para o CAD/CAM, o Lava™ Ultimate foi criado com a exclusiva nanotecnologia. Este trabalho tem por finalidade apresentar dois casos de restaurações indiretas em região posterior utilizando o material Lava Ultimate™ (3M™ ESPE™) e a tecnologia CAD/CAM(AU)
Indirect inlay / onlay restorations using aesthetic materials have been increasingly used in posterior teeth, resulting in an increase in the use of dental ceramics previously restricted only to treatment in previous regions. A new restorative option is the nanoceramic resins, titled Lava Ultimate™, a product developed by 3M™ ESPE™ (Irvine, Califórnia, USA). Developed especially for CAD / CAM, Lava™ Ultimate was created with exclusive nanotechnology. The aim of this study was to present two cases of indirect posterior restorations using the Lava Ultimate™ material (3M™ ESPE™) and CAD / CAM(AU)
Subject(s)
Ceramics , Computer-Aided Design , Inlays , Esthetics, DentalABSTRACT
Objetivo: El objetivo de este trabajo es presentar el resultado clínico retrospectivo de 11 Endocrowns, realizados por el primer autor en su consultorio privado, en un período de 8 a 19 años. Materiales and Métodos: Se establecieron criterios de inclusión y exclusión para la muestra y las restauraciones. En ciento treinta pacientes seleccionados al azar, 11 Endocrowns habían sido realizados en 11 pacientes. Tres materiales restauradores y tres cementos de resina fueron utilizados. Se analizaron diferentes variables. El Indice Kappa de Cohen, referido al análisis de calidad de las restauraciones, tuvo una variación de 0.78 a 1. Para analizar las diferencias estadísticas significativas se utilizaron métodos estadísticos descriptivos. Resultados: Al momento del examen, 10 (90.9%) Endocrowns estaban en función Uno (9.1%) había fracasado. Conclusiones: Endocrown, es un procedimiento restaurador técnicamente sensible, conservador, estético, fácil, rápido, con muy aceptable funcionalidad y longevidad, para rehabilitar dientes posteriores endodónticamente tratados, principalmente molares.
Purpose. The aim of this paper is to present the retrospective clinical performance of 11 endocrowns, placed in a single private practice in an 8-to-19-year period. Materials and Methods. Inclusion and exclusion criteria for the sample and the restorations were established. One hundred and thirty patients were selected at random. Eleven endocrowns had been placed in 11 patients. Three restorative materials and three resin cements were used. Cohens Kappa coefficient, on the quality analysis of the restorations, ranged from 0.78 to 1. Due to the small sample, inferential statistical methods could not be used. Therefore, statistical descriptive methods were applied. Results. At the moment of the clinical examination, 10 (90.9%) endocrowns were in function and 1 failed (9.1%). Conclusions. Endocrown is a conservative and aesthetic technique-sensitive procedure used to restore posterior endodontically treated teeth, mainly molars, with a very good biomechanical and functional performance, and very acceptable longevity.
Subject(s)
Metal Ceramic Alloys , Tooth, Nonvital , Dental Restoration, PermanentABSTRACT
Computer aided designing-computer aided milling (CAD-CAM) technology was introduced to dentistry way back in 1971. Over the years there has been a constant upgradation in the quality and popularity of its application to dentistry. CAD-CAM fabricated prosthesis though initially were considered costly and technique sensitive, nowadays they are being extensively used because of advancements in various CAD-CAM systems that have gained popularity. Th e ease of work and reduced chair side time makes them a boon while providing prosthodontics treatment. Dental CAD-CAM systems are being used not only for crowns and bridges, inlays and onlays but also for fabrication of removable prosthesis, stents, and implant components. Th is article reviews the evolution of the CAD-CAM system and its applications in the fi eld of dentistry over the past two and a half decades.
Subject(s)
Computer-Aided Design , Crowns , Dental Prosthesis Design/instrumentation , Imaging, Three-Dimensional/instrumentation , Printing, Three-Dimensional/instrumentation , Prosthodontics/methods , StentsABSTRACT
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.
Subject(s)
Humans , Female , Ceramics , Crowns , Dental Veneers , Esthetics, Dental , InlaysABSTRACT
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...
Subject(s)
Humans , Female , Young Adult , Ceramics , Crowns , Dental Materials , Dental Veneers , InlaysABSTRACT
A demanda por estética e por restaurações que cada vez mais mimetizem as estruturas dentais levaram ao desenvolvimento de novos sistemas cerâmicos. Além de excelência estética, tais sistemas exibem excelentes propriedades mecânicas, o que amplia a gama de procedimentos aos quais podem ser aplicados. Atualmente, diversos materiais estão disponíveis, o que exige conhecimento por parte do profissional para uma adequada seleção. Dentro desse contexto, objetivou-se neste artigo realizar uma breve revisão sobre os atuais sistemas cerâmicos disponíveis no mercado e apresentar um relato de caso clínico com o sistema IPS e.max Press (Ivoclar Vivadent AG)
The demand for the aesthetic and restorative procedures that mimetize the dental structures, had lead to the development of new ceramic systems. Besides aesthetic excellency, such systems show excellent mechanical properties, that extend the gamma of procedures which can be applied. Nowadays, as diverse materials are avaiable, the adequate selection demands knowledge of the professionals. The objective of this article is to review the ceramic systems available on the market and show a clinical case with one of them, the system IPS e.max Press (Ivoclar Vivadent AG)
Subject(s)
Humans , Female , Ceramics/chemistry , Zinc Oxide-Eugenol Cement/chemistry , Esthetics, Dental , Dental Materials/chemistry , Computer-Aided Design/instrumentation , Composite Resins/chemistry , Dental Restoration, Permanent/methodsABSTRACT
Aim: Searches for biocompatible restorative materials with better clinical properties, longevity and esthetics have resulted in the development of several ceramic types. The aim of this study was to evaluate the performance of Ceramco inlays and onlays over 40 months. Methods: Thirty ceramic indirect restorations were placed in 10 patients and all were adhesively cemented with a dual resin cement. The clinical performance was evaluated by a calibrated examiner who attributed scores adapted from the Cvar and Ryge criteria: color, marginal adaptation, abrasion, caries recurrence, fracture and postoperative pain. These assessments were performed after cementation of the restorations (T0=baseline) and after 4 periods: T1 (10 months), T2 (20 months), T3(30 months) and T4 (40 months). Photographs were made in T0 and T4 to illustrate the general condition of each restoration. Data were analyzed statistically by Kruskal-Wallis H statistics (p=0.05) and results were presented using percentage values. Results: Clinical evaluation revealed no color alteration or abrasion (100%); a success rate of 96.7% for caries, fractures and postoperative pain; and 76.7% of failure for marginal adaptation. Conclusion: The ceramic restorations did not show alterations that could result in their replacement, although there was a moderate failure in the marginal adaptation.
Subject(s)
Humans , Adolescent , Adult , Ceramics , Dental Marginal Adaptation , Esthetics, Dental , Inlays/methodsABSTRACT
Objective To test the fracture loading of extracted cracked teeth with CEREC CAD/CAM ceramic inlays/onlays. Methods All the extracted teeth were divided into two groups (A: control group; B: test group; n=15 teeth in each group). All the teeth were prepared into those imitating cracked teeth. Those teeth in group B were strengthened with CEREC CAD/CAM ceramic inlays/onlays. All teeth were thermocycled and mounted for testing and then were loaded until fracture. Results The force of anti-fracture of extracted teeth imitating cracked teeth with CEREC CAD/CAM ceramic inlays/onlays (group B) was obviously higher than that of the teeth without CEREC CAD/CAM ceramic inlays/onlays (group A). Conclusion CEREC CAD/CAM ceramic inlays/onlays can effectively prevent the crack of teeth in clinical practice.