Advancements in all-ceramics for dental restorations and their effect on the wear of opposing dentition

Abstract

Tooth wear is a process that is usually a result of tooth to tooth and/or tooth and restoration contact. The process of wear essentially becomes accelerated by the introduction of restorations inside the oral cavity, especially in case of opposing ceramic restorations. The newest materials have vastly contributed toward the interest in esthetic dental restorations and have been extensively studied in laboratories. However, despite the recent technological advancements, there has not been a valid in vivo method of evaluation involving clinical wear caused due to ceramics upon restored teeth and natural dentition. The aim of this paper is to review the latest advancements in all-ceramic materials, and their effect on the wear of opposing dentition. The descriptive review has been written after a thorough MEDLINE/PubMed search by the authors. It is imperative that clinicians are aware of recent advancements and that they should always consider the type of ceramic restorative materials used to maintain a stable occlusal relation. The ceramic restorations should be adequately finished and polished after the chair-side adjustment process of occlusal surfaces.

Effect of Reduced Occlusal Thickness with Two Margin Designs on Fracture Resistance of Monolithic Zirconia Crowns

“…1 The veneering layer was used to enhance the esthetic of restoration due to the opaque color of the zirconia core. 2,3 But this, in turn, may result in failure (adhesive or cohesive) of the veneering layer. 4 The monolithic zirconia restorations can be used successfully in many clinical situations by omitting the veneering porcelain layer.…”

Wear of Glass-ceramic-veneered Zirconia Posterior FPDS After 10 Years

“…Basically, abrasion in the oral cavity usually results from tooth-to-tooth or tooth-to-restoration contact, and this process is generally accelerated by a dental prosthesis. Despite constant technical innovations in the context of current research, no valid in vivo method has been established to objectively assess abrasion behavior [42]. However, the procedure used in this study, the generation of virtual 3D models using the Atos II industrial scanner, proved to be a very practical method for neutrally investigating and displaying the wear behavior of all-ceramic restorations.…”

Tratamentos superficiais de sistemas cerâmicos para união a cimentos resinosos

“…A melhoria gradual dos sistemas cerâmicos levou ao desenvolvimento de materiais com diferentes propriedades mecânicas e características ópticas, com grande diversidade na composição dos sistemas, abrangendo desde sistemas predominantemente vítreos até cerâmicas totalmente cristalinas 1,5,6,28 . Em contrapartida, tal variedade estrutural e de superfície entre os materiais cerâmicos resultou em diferentes padrões de condicionamento, conforme o agente condicionante utilizado, o tempo de aplicação e a concentração.…”

“…A maior exigência por materiais restauradores com excelentes qualidades estéticas e estabilidade de cor em longo prazo expandiu o emprego de sistemas cerâmicos em tratamentos reabilitadores 1 . Considerando a natureza friável das cerâmicas, buscou-se melhorar as propriedades mecânicas de tais materiais por meio do desenvolvimento de novas formas de processamento e do aumento do conteúdo cristalino [2][3][4] .…”