CAD/CAM to fabricate ceramic implant abutments and crowns: a preliminaryin vitrostudy
Open Access
- 1 March 2009
- journal article
- research article
- Published by Wiley in Australian Dental Journal
- Vol. 54 (1), 12-16
- https://doi.org/10.1111/j.1834-7819.2008.01082.x
Abstract
Background: This study evaluated the feasibility of fabricating implant abutments and crowns from pre-sintered feldspathic porcelain blocks using the chair-side CAD/CAM, CEREC3D system. Methods: Thirty-two implant analogues were divided into two groups. In the control group, prefabricated machined anatomical titanium (Ti) abutments were screw-retained to the analogues. In the test group, machined feldspathic porcelain abutments were cemented on prefabricated machined Ti links and screw-retained to the implant analogues. These feldspathic porcelain abutments were fabricated out of pre-sintered feldspathic porcelain blocks as duplicates of the abutments in the control group using the CAD/CAM, CEREC3D system. Thirty-two feldspathic porcelain crowns, also fabricated out of pre-sintered ceramic blocks, were then cemented with resin cement on all the abutments in both groups. All samples were subsequently subjected to fracture strength testing under static load. An unpaired t-test was used to compare fracture load values between the two groups. Results: The test group using feldspathic porcelain abutments and crowns showed statistically significant higher mean fracture strength than the control group with the Ti abutments and feldspathic porcelain crowns. Conclusions: This preliminary study showed that the chair-side CAD/CAM technology can be utilized to fabricate customized ceramic abutments with their associated ceramic crowns using pre-sintered feldspathic porcelain blocks.Griffith Health, School of Dentistry and Oral HealthNo Full TexKeywords
This publication has 17 references indexed in Scilit:
- Fracture Strength and Fatigue Resistance of All‐Ceramic Molar Crowns Manufactured with CAD/CAM TechnologyJournal of Prosthodontics, 2008
- A systematic review of the survival and complication rates of all‐ceramic and metal–ceramic reconstructions after an observation period of at least 3 years. Part I: single crownsClinical Oral Implants Research, 2007
- Developing meaningful systematic review of CAD/CAM reconstructions and fiber‐reinforced composites*Clinical Oral Implants Research, 2007
- Use of CAD/CAM technology to fabricate a removable partial denture frameworkThe Journal of Prosthetic Dentistry, 2006
- Fracture load and marginal fit of shrinkage‐free ZrSiO4 all‐ceramic crowns after chewing simulationJournal of Oral Rehabilitation, 2006
- Survival rate, fracture strength and failure mode of ceramic implant abutments after chewing simulationJournal of Oral Rehabilitation, 2005
- Technical and biological complications/failures with single crowns and fixed partial dentures on implants: a 10‐year prospective cohort studyClinical Oral Implants Research, 2005
- Single-Tooth Implant Restorations in the Esthetic Zone With PureForm Ceramic Crowns: 3 Case ReportsJournal of Oral Implantology, 2004
- Patients' satisfaction following implant therapyClinical Oral Implants Research, 2004
- Immediate Implants Supporting Single Crown Restoration: A 4‐Year Prospective StudyThe Journal of Periodontology, 2004