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Background
The past decade’s increased demand for all-ceramic restorations in both anterior and posterior teeth has expanded the search for materials with improved mechanical and esthetic properties. This evolution in ceramic materials is directly related to the replacement of conventional fabrication processes by computer-aided design/computer-assisted manufacture (CAD/CAM) technology.
Aims
This systematic review sought to determine the long-term clinical survival rates of single-tooth restorations fabricated with CAD/CAM technology, as well as the frequency of failures depending on the CAD/CAM system, the type of restoration, the selected material and the luting agent.
Methods
An electronic 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. 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. In addition, reported failures were analyzed by CAD/CAM system, type of restoration, restorative material, and luting agent.
Results
From a total of 2,628 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 (CI 95%: 1.08% to 3.19%). The estimated total survival rate after 5 years was 91.1% (CI 95%: 89.6% to 92.5%). Additional findings include the following: (1) The KaVo ARCTICA system had a higher failure rate when compared to Cerec 2 system (p<0.001, 1.18% vesus 3.22%), (2) Glass-matrix ceramic restorations showed a lower failure rate when compared to polycrystalline ceramic restorations (p<0.001, 1.18% versus 3.22%), (3) Full-coverage crowns (p<0.001, 1.99%) and endocrowns (p<0.001, 2.57%) showed a higher failure rate when compared to inlay/onlay restorations (1.57%), (4) Chemically cured restorations (p<0.001, 2.80%) showed a higher failure rate when compared to dual-cured restorations (1.75%) while light-cured restorations (p<0.001, 1.40%) showed a lower failure.
Conclusions
The overall survival rate of single-tooth ceramic restorations fabricated with CAD/CAM technology was similar to those conventionally manufactured.
Background
The past decade’s increased demand for all-ceramic restorations in both anterior and posterior teeth has expanded the search for materials with improved mechanical and esthetic properties. This evolution in ceramic materials is directly related to the replacement of conventional fabrication processes by computer-aided design/computer-assisted manufacture (CAD/CAM) technology.
Aims
This systematic review sought to determine the long-term clinical survival rates of single-tooth restorations fabricated with CAD/CAM technology, as well as the frequency of failures depending on the CAD/CAM system, the type of restoration, the selected material and the luting agent.
Methods
An electronic 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. 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. In addition, reported failures were analyzed by CAD/CAM system, type of restoration, restorative material, and luting agent.
Results
From a total of 2,628 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 (CI 95%: 1.08% to 3.19%). The estimated total survival rate after 5 years was 91.1% (CI 95%: 89.6% to 92.5%). Additional findings include the following: (1) The KaVo ARCTICA system had a higher failure rate when compared to Cerec 2 system (p<0.001, 1.18% vesus 3.22%), (2) Glass-matrix ceramic restorations showed a lower failure rate when compared to polycrystalline ceramic restorations (p<0.001, 1.18% versus 3.22%), (3) Full-coverage crowns (p<0.001, 1.99%) and endocrowns (p<0.001, 2.57%) showed a higher failure rate when compared to inlay/onlay restorations (1.57%), (4) Chemically cured restorations (p<0.001, 2.80%) showed a higher failure rate when compared to dual-cured restorations (1.75%) while light-cured restorations (p<0.001, 1.40%) showed a lower failure.
Conclusions
The overall survival rate of single-tooth ceramic restorations fabricated with CAD/CAM technology was similar to those conventionally manufactured.
Background
The past decade’s increased demand for all-ceramic restorations in both anterior and posterior teeth has expanded the search for materials with improved mechanical and esthetic properties. This evolution in ceramic materials is directly related to the replacement of conventional fabrication processes by computer-aided design/computer-assisted manufacture (CAD/CAM) technology.
Aims
This systematic review sought to determine the long-term clinical survival rates of single-tooth restorations fabricated with CAD/CAM technology, as well as the frequency of failures depending on the CAD/CAM system, the type of restoration, the selected material and the luting agent.
Methods
An electronic 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. 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. In addition, reported failures were analyzed by CAD/CAM system, type of restoration, restorative material, and luting agent.
Results
From a total of 2,628 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 (CI 95%: 1.08% to 3.19%). The estimated total survival rate after 5 years was 91.1% (CI 95%: 89.6% to 92.5%). Additional findings include the following: (1) The KaVo ARCTICA system had a higher failure rate when compared to Cerec 2 system (p<0.001, 1.18% vesus 3.22%), (2) Glass-matrix ceramic restorations showed a lower failure rate when compared to polycrystalline ceramic restorations (p<0.001, 1.18% versus 3.22%), (3) Full-coverage crowns (p<0.001, 1.99%) and endocrowns (p<0.001, 2.57%) showed a higher failure rate when compared to inlay/onlay restorations (1.57%), (4) Chemically cured restorations (p<0.001, 2.80%) showed a higher failure rate when compared to dual-cured restorations (1.75%) while light-cured restorations (p<0.001, 1.40%) showed a lower failure.
Conclusions
The overall survival rate of single-tooth ceramic restorations fabricated with CAD/CAM technology was similar to those conventionally manufactured.
Background
The past decade’s increased demand for all-ceramic restorations in both anterior and posterior teeth has expanded the search for materials with improved mechanical and esthetic properties. This evolution in ceramic materials is directly related to the replacement of conventional fabrication processes by computer-aided design/computer-assisted manufacture (CAD/CAM) technology.
Aims
This systematic review sought to determine the long-term clinical survival rates of single-tooth restorations fabricated with CAD/CAM technology, as well as the frequency of failures depending on the CAD/CAM system, the type of restoration, the selected material and the luting agent.
Methods
An electronic 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. 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. In addition, reported failures were analyzed by CAD/CAM system, type of restoration, restorative material, and luting agent.
Results
From a total of 2,628 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 (CI 95%: 1.08% to 3.19%). The estimated total survival rate after 5 years was 91.1% (CI 95%: 89.6% to 92.5%). Additional findings include the following: (1) The KaVo ARCTICA system had a higher failure rate when compared to Cerec 2 system (p<0.001, 1.18% vesus 3.22%), (2) Glass-matrix ceramic restorations showed a lower failure rate when compared to polycrystalline ceramic restorations (p<0.001, 1.18% versus 3.22%), (3) Full-coverage crowns (p<0.001, 1.99%) and endocrowns (p<0.001, 2.57%) showed a higher failure rate when compared to inlay/onlay restorations (1.57%), (4) Chemically cured restorations (p<0.001, 2.80%) showed a higher failure rate when compared to dual-cured restorations (1.75%) while light-cured restorations (p<0.001, 1.40%) showed a lower failure.
Conclusions
The overall survival rate of single-tooth ceramic restorations fabricated with CAD/CAM technology was similar to those conventionally manufactured.