European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
June 2009
Print ISSN:
0965-7452
Vol:
17
Issue:
2

The Reproducibility and Accuracy of Internal Fit of Cerec 3d Cad/cam all Ceramic Crowns

Abstract - The objective of this study was to evaluate the reproducibility and accuracy of internal fit using Cerec 3D CAD/CAM (computer aided design/computer aided manufacturing) all-ceramic crowns and to investigate the proximal contact point areas between the crowns and neighbouring teeth, in terms of location and the presence or absence of contact. A total of 48 crowns were milled and divided into two groups of twenty-four each. One group consisted of testing a Control die and the other group consisted of testing single Replica stone die duplicates of the Control die. The Internal Marginal Gap, Axio-Occlusal Transition Gap and Occlusal Gap were measured on each crown in both groups. No significant differences were identified between the mean thickness of the Marginal Gap, the Axio-Occlusal Transition Gap and the Occlusal Gap of the Control die when compared with the Replica dies indicating uniformity and consistency of the accuracy of fit and therefore die replication.

KEY WORDS: Cerec 3D CAD/CAM, Accuracy of Fit, Proximal Contacts

Article Price
£15.00
Institution Article Price
£
Page Start
76
Page End
77
Authors
Brian L. D’Arcy, Osama E. Omer, Declan A. Byrne, Frank Quinn

Articles from this issue

  • Title
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  • Pg. End

  1. Biomechanical Methods Applied in Dentistry: A Comparative Overview of Photoelastic Examinations, Strain Gauge Measurements, Finite Element Analysis and Three-dimensional Deformation Analysis
  2. 50
  3. 57

  1. Effect of Curing Cycles on the Mechanical Properties of Heat Cured Acrylic Resins
  2. 58
  3. 60

  1. A Questionnaire Based Study to Investigate the Variations in the Management of Tooth Wear by UK and Prosthodontists from Other Countries
  2. 61
  3. 66

  1. Determining the Dimensional Stability, Fracture Toughness and Flexural Strength of Light-cured Acrylic Resin Custom Tray Material
  2. 67
  3. 72

  1. The Reproducibility and Accuracy of Internal Fit of Cerec 3d Cad/cam all Ceramic Crowns
  2. 76
  3. 77

  1. Three-Dimensional Finite Element Analysis of Posterior Fiber Reinforced Composite Fixed Partial Denture: Framework Design for Pontic
  2. 78
  3. 84

  1. Prosthetic Status and Treatment Needs among Patients Attending the Prosthodontic Department in a Dental Institute in India
  2. 85
  3. 89

  1. Effects of Vertical Interarch Space and Abutment Height on Stress Distributions: A 3d Finite Element Analysis
  2. 90
  3. 94

  1. IADR Pre-Prosthetic Regenerative Science Award Ceremony
  2. 95
  3. 95