Abstract Archives

IADR Abstract Archives

Clinical Observation of the Restoration of One-piece CAD/CAM Zirconia Posts and Cores: A Pilot Study

Objectives: The purpose of the clinical observation was to evaluate the effect of one-piece computer aided design (CAD) and computer aided manufacture (CAM) of zirconia posts and cores for the restoration of defective teeth.
Methods: Seventy-two defective teeth, from 42 patients, were restored with one-piece CAD/CAM zirconia posts and cores. Patients were divided into two groups; group A: where the defective crown exhibited defects in less than two walls, and group B: where the defective crown exhibited defects in three or four walls. During a clinical observation period of 10 to 38 months, post stability and the occurrence of fractures in either teeth or posts were assessed.
Results: During this observation period, no incidences of teeth fracture or post complications were observed and all one-piece CAD/CAM zirconia posts and cores remained intact.
Conclusions: One-piece CAD/CAM zirconia posts and cores can be successfully employed to restore defective teeth with good clinical effect. Clinical relevance: one-piece zirconia posts and cores can be a beneficial selective choice for ceramic crown restoration for all defective teeth.
Division: IADR/AADR/CADR General Session
Meeting: 2015 IADR/AADR/CADR General Session (Boston, Massachusetts)
Location: Boston, Massachusetts
Year: 2015
Final Presentation ID: 3685
Abstract Category|Abstract Category(s): Dental Materials 3: Ceramic-based Materials and Cements
Authors
  • Zhang, Xiang Hao  ( Peking University , Beijing , China )
  • Tuanfeng, Zhou  ( Peking university dental hospital , Beijing , China )
    • Financial Interest Disclosure: None
    SESSION INFORMATION
    Poster Session
    Mechanical Properties
    Saturday, 03/14/2015 , 03:30PM - 04:45PM
    TABLES
    The number of teeth and teeth position restored by a one-piece CAD/CAM zirconia posts and cores.
    Teeth position Upper premolar Upper canine Upper lateral incisor Upper central incisor Low incisor Low canine Low premolar Total
    ≤2 defective coronal walls 6 2 8 16 5 0 2 39
    >2 defective coronal walls 7 0 4 19 2 0 1 33
    Total 13 2 12 35 7 0 3 72

    The restoration result of one-piece CAD/CAM zirconia posts and cores in clinical observation period
    Tooth position Upper premolar Upper canine Upper lateral incisor Upper central incisor Low incisor Low canine Low premolar
    defective coronal walls ≤2 >2 ≤2 >2 ≤2 >2 ≤2 >2 ≤2 >2 ≤2 >2 ≤2 >2
    dislogement 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    root broken 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    post broken 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    total 0 0 0 0 0 0 0 0 0 0 0 0 0 0