Comparison of the Clinical Success of Pediatric Zirconia Crowns Applied with Different Luting Cements

This randomized controlled trial aims to evaluate and compare the clinical outcomes of prefabricated zirconia crowns (PZCs) for primary molars cemented with different luting cements. The main questions to answer are: Will there be any difference in the clinical success regarding retention among the PZCs cemented with different luting cements? Will there be any difference in the clinical success regarding periodontal health among the PZCs cemented with different luting cements? Will there be any difference in the clinical success regarding pulpal survival among the PZCs cemented with different luting cements? Fifty-three children (60 teeth), between 5 and 11 years old enrolled for the study. Researchers will compare the retention status, plaque index (PI), gingival index (GI), and probing depth (PD) scores, and endodontic/periodontal pathology of PZCs. Participants will: \- visit the clinic 1st,3rd,6th,12th months after the restoration.