Introduction
caries-prone teeth
The first permanent molars (FPMs) are the most caries-prone teeth [At present, there is a lack of consensus regarding the optimal approach for managing compromised first permanent molars (FPMs) in children. The existing evidence is inconclusive, and there is no universally accepted treatment that is considered the superior choice [While efforts are being made to improve crown adaptation and consequently, the longevity of crowns, attempts are also being made to meet aesthetic expectations. Zirconia crowns demonstrated the highest level of aesthetic satisfaction for both parents and patients compared to stainless steel crowns when they were used for primary posterior teeth [The aim of the present study was to investigate the clinical success of compromised permanent molars in children restored with prefabricated metal crowns or zirconia crowns, and the effects of these crowns on periodontal health. The null hypothesis tested was that there is no difference in periodontal health and clinical success between SSCs and ZCs in young permanent first molars.