Revisão sistemática do desempenho clínico de restaurações unitárias executadas em CAD-CAM

  • Inês Filipa Alves de Carvalho (Student)

Student thesis: Master's Thesis

Abstract

Introduction: Owing to an increased demand for safe and esthetically pleasing dental materials, ceramic materials have been developed and optimized to rehabilitate anterior and posterior teeth. This evolution in ceramic materials is directly related to the development of sophisticated processing technologies and systems into Dental Medicine, particularly – CAD-CAM technology. The aim of this work is to do a systematic review outlining long-term clinical survival rates of single-tooth restorations fabricated with CAD-CAM technology with a minimum follow-up of 3 years. This study sought to determinate and to compare the frequency of failures of partial and full-coverage CAD-CAM crowns, as well as the CAD-CAM ceramic materials with the highest survival rates. Methodology: A bibliographic search until November 2015 was performed using two databases: Medline (PubMed®) and Embase. Selected keywords and well-defined inclusion and exclusion criteria guided the search of relevant results. All articles were first reviewed by title, then by abstract, and subsequently by a full text reading. Data were assessed and extracted through a standardized form. The pooled results were statistically analyzed and the overall failure rate was calculated by random-effects model. Reported failures were analyzed by CAD-CAM system, type of restoration, restorative material, and luting agent. Results: From a total of 2628 single-tooth restorations with a mean exposure time of 7.3 years and 274 failures, the failure rate was 1.86% per year, estimated per 100 restoration years (95% CI: 1.08% to 3.19%). The estimated total survival rate after 5 years was 90.0% (95% CI: 88.8% to 91.2%). The KaVo ARCTICA system revealed a higher failure rate when compared with Cerec 2 system (p<0.001; 17.21% versus 1.95%); glass-ceramic restorations had a failure rate higher when compared with polycrystalline ceramics restorations (p<0.001; 1.18% versus 3.22%); full-coverage restorations (p<0.001; 1.99%) and endocrowns (p<0.001; 2.57%) showed a higher failure rate when compared with inlays/onlays (1.57%); chemically-cured lutings (p<0.001; 2.80%) had a higher failure rate when compared with dual-cured lutings while light-cured lutings had a lower failure rate. Conclusion: The overall survival rate of single-tooth restorations fabricated with CAD-CAM technology was similar to conventional ones
Date of Award27 Jul 2016
Original languagePortuguese
Awarding Institution
  • Universidade Católica Portuguesa
SupervisorAndré Correia (Supervisor) & Helena Margarida de Miranda Lemos Romão Donato (Co-Supervisor)

Keywords

  • Ceramics
  • Crowns
  • Systematic review
  • Dental prosthesis
  • Permanent dental restoration

Designation

  • Mestrado em Medicina Dentária

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