الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
The aim of this prospective, split mouth, randomized controlled trial is to evaluate the effectiveness of Bio-active cement compared with Packable glass ionomer for cementation of posterior zirconia pediatric crowns in terms of the following outcomes:
-Primary outcome: Retention of the crowns.
-Secondary outcome: Fracture of the crowns.
-Tertiary outcome: Fracture potential and cracks development.
-Quaternary outcome: Gingival condition around the cemented crowns.