A comparative evaluation of prosthetic and clinical outcomes influenced by two digitally fabricated extracoronal restorations: An onlay and a full crown: A prospective, cross-arch randomized study

In this clinical trial comparing lithium disilicate onlays and crowns for restoring posterior teeth following endodontic treatment, both options demonstrated satisfactory prosthetic parameters during subsequent follow-ups. However, marginal integrity and discoloration were more prevalent in the onlay group. Periodontal examination revealed that onlays exhibited superior periodontal outcomes compared to crowns, with full crowns showing greater periodontal damage at 1-year and 2-year follow-ups.