Tooth Diseases Clinical Trial
Official title:
Clinical Evaluation Between Zirconia Crowns and Stainless Steel Crowns in Primary Molars Teeth
Introduction and Research Problem:
The aim of this project is to evaluate and compare two full coronal restorations on primary
posterior molars over a period of 3, 6 and 12 months in terms of restoration failure,
marginal integrity, proximal contact, secondary caries, occlusion and gingival response. The
restorations types are Stainless Steel Crowns (SSC) and NuSmile Zirconia Crowns (Nu/ZR).
Materials and Methods:
Children attending the King Abdulaziz University, Faculty of Dentistry (KAUFD) clinics who
need restorations will be screened for inclusion criteria till 120 teeth are recruited (60
teeth for SSC restorations and 60 for Nu/ZR restorations). Split mouth technique will be
used to ensure equalizing variables for both groups, each patient will have side restored
with SSC and the opposite side will be restored with Nu/ZR crowns.
Randomization will be done using Statistical Package for the Social Sciences (SPSS) software
version 20.0 (Armonk, New York; International Business Machines Corporation (IBM Corp) for
each age group separately with a uniform random variable generation. A simple descriptive
statistics will be used for analysis and a T-Tests with Wilcoxon Signed-Rank will be used.
Level of significance will be set at (α = 0.05) and level of confidence at (95%).
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