ABSTRACT
PURPOSE: The aim of the present randomized controlled study was to compare prefabricated all-ceramic, anatomically shaped healing abutments followed by all-ceramic abutments and all-ceramic crowns and prefabricated standard-shaped (round-diameter) titanium healing abutments followed by final titanium abutments restored with porcelain-fused-to-metal (PFM) implant crowns in the premolar and molar regions. MATERIALS AND METHODS: Forty-two patients received single implants restored either by all-ceramic restorations (test group, healing abutment, final abutment, and crown all made of zirconia) or conventional titanium-based restorations. Immediately after prosthetic incorporation and after 12 months of loading, implant survival, technical complications, bone loss, sulcus fluid flow rate (SFFR) as well as plaque index (PI) and implant stability (Periotest) were analyzed clinically and radiologically. RESULTS: After 12 months of loading, an implant and prosthetic survival rate of 100% was observed. Minor prosthetic complications such as chipping of ceramic veneering occurred in both groups. No statistical significant differences were observed between both groups with only a minimum of bone loss, SFFR, and PI. CONCLUSION: All-ceramic implant prostheses including a prefabricated anatomically shaped healing abutment achieved comparable results to titanium-based restorations in the posterior region. However, observational results indicate a benefit as shaping the peri-implant soft-tissue with successive provisional devices and subsequent compression of the soft tissue can be avoided.
Subject(s)
Humans , Bicuspid , Ceramics , Crowns , Molar , Prostheses and Implants , Survival Rate , TitaniumABSTRACT
A busca pela excelência em estética vem se tornando cada vez mais necessária na Odontologia moderna. Com a evolução dos biomateriais, o surgimento dos pilares cerâmicos proporciona resultados satisfatórios em regiões críticas, onde a estética é fundamental. O presente estudo mostrou a aplicação de pilares em zircônia, suas propriedades físicas, biológicas e sua relação com os tecidos peri-implantares, através de uma revisão da literatura e do relato de dois casos clínicos.
The search for excellent on dental esthetics has become more necessary in contemporary implant dentistry. With advancements on biomaterials, the development of ceramic abutments provides satisfactory results in critical esthetic regions. The aim of this report is to discuss the use of zirconia abutments, their physical and biological properties, as well as relationship with peri-implant tissues through two clinical case reports and basic aspects on the literature.
Subject(s)
Humans , Female , Adult , Esthetics, Dental , OsseointegrationABSTRACT
A exigência estética em Odontologia tem levado ao desenvolvimento de novos materiais. Os pilares cerâmicos surgem como uma alternativa viável nas reabilitações protéticas em regiões onde a estética é primordial. Este artigo tem por finalidade revisar considerações relevantes na propriedades mecânicas e biológicas dos pilares cerâmicos.
Aesthetic demands in dentistry have turned into the development of newer materials. Ceramic abutments appear as a viable alternative for prosthetic rehabilitations in esthetic regions where this is the primary concern. The objective of this article is to review some relevant aspects about ceramic abutment´s mechanical and biological properties.