European Journal of Prosthodontics and Restorative Dentistry
- Cover Date:
- December 2007
- Print ISSN:
- 0965-7452
- Vol:
- 15
- Issue:
- 4
Interface Dimensions of CEREC-3 MOD Onlays
Abstract - Evaluation was undertaken of the interface dimensions of MOD ceramic onlays fabricated using the Cerec 3 system. A master die was prepared on a maxillary second premolar Ivorine tooth from which 20 Cerec 3 onlays and 20 feldspathic onlays were made. A total of 80 cement analogues were produced using elastomeric impression material and sectioned orthogonally. Interface dimension was measured using Image Analysis Software. The ceramic onlays constructed using Cerec 3 demonstrated signiï¬cantly larger cement lute space compared with laboratory produced feldspathic porcelain onlays with mean thickness of 201.3 ± 78.0 µm and 139.7 ± 49.7 µm respectively (P < 0.001). Large interface dimensions were particularly noted in the proximal boxes. The multiple variables involved in the construction of the Cerec onlays as well as the complexity of the onlay design may be contributing factors to the large cement space.
KEY WORDS: Interface dimension; Internal ï¬t; ceramic restorations; MOD ceramic onlays; CAD-CAM; CEREC 3.
- Article Price
- £15.00
- Institution Article Price
- £
- Page Start
- 183
- Page End
- 189
- Authors
- Wendy C Wang, Ailbhe McDonald, Aviva Petrie, Derrick Setchell
Articles from this issue
- Title
- Pg. Start
- Pg. End
- Surface Microhardness of a Nanoï¬lled Resin Composite: A Comparison of a Tungsten Halogen and a Light-Emitting Diode Light Curing Unit, in vitro
- 146
- 152
- Assessing the efï¬cacy of Denture Cleaners with Quantitative Light-Induced Fluorescence (QLF)
- 165
- 170
- Colour Effects on Extracted Teeth After a Tooth Whitening Regime: Assessment in an Artiï¬cial Oral Cavity
- 171
- 176
- Efï¬cacy of Various Disinfecting Agents on the Reduction of Bacteria from the Surface of Silicone and Polyether Impression Materials
- 177
- 182