Author(s): Mohal suhiel saad, Taqwa majid abdul hussain and Firas abdulameer hussain*
Abstract
The significance of evaluating the accuracy and fitness of fixed dental restorations to the prepared tooth, emphasizing their impact on the clinical success and lifespan of dental prostheses. Marginal and internal fit play crucial roles in achieving a well-fitting restoration, with marginal discrepancy referring to the vertical gap between the tooth preparation and the restoration's cervical edge, and internal discrepancy denoting the horizontal gap between the axial wall of the prepared tooth and crown Complications arising from marginal and internal discrepancies, such as plaque deposition, recurrent caries, and periodontal disease, underscore the importance of achieving precise fits in dental restorations.