This study arm comprising 30 adult patients who will receive 1-to-3 unit temporary crown or bridge restorations fabricated from monocolor polymethyl methacrylate (PMMA) discs/blocks. The provisional prostheses will be designed using specialized computer-aided design (CAD) software and manufactured via computerized milling units (CAM). Following clinical delivery with a standardized temporary cement, the restorations will undergo prospective performance and safety evaluations using the Revised FDI Criteria. Data collected for this cohort will be analyzed and reported independently utilizing descriptive statistics and longitudinal intra-group analyses, with no direct statistical comparison intended between independent arms.

This study arm comprising 30 adult patients who will receive 1-to-3 unit temporary crown or bridge restorations fabricated from monocolor super-high translucent (SHT) polymethyl methacrylate (PMMA) discs/blocks. The provisional prostheses will be designed using specialized computer-aided design (CAD) software and manufactured via computerized milling units (CAM). Following clinical delivery with a standardized temporary cement, the restorations will undergo prospective performance and safety evaluations using the Revised FDI Criteria. Data collected for this cohort will be analyzed and reported independently utilizing descriptive statistics and longitudinal intra-group analyses, with no direct statistical comparison intended between independent arms.

This study arm comprising 30 adult patients who will receive 1-to-3 unit temporary crown or bridge restorations fabricated from multi-layered (multicolor) super-high translucent (SHT) polymethyl methacrylate (PMMA) discs/blocks. The provisional prostheses will be designed using specialized computer-aided design (CAD) software and manufactured via computerized milling units (CAM). Following clinical delivery with a standardized temporary cement, the restorations will undergo prospective performance and safety evaluations using the Revised FDI Criteria. Data collected for this cohort will be analyzed and reported independently utilizing descriptive statistics and longitudinal intra-group analyses, with no direct statistical comparison intended between independent arms.

A custom-fabricated, 1-to-3 unit temporary fixed prosthodontic restoration (temporary crowns or bridges) produced through automated digital workflows. The provisional prosthesis is manufactured specifically from the ON DENT™ Tempo-CAD Monocolor PMMA (polymethyl methacrylate) disc/block restorative material via high-precision centralized CAD/CAM milling procedures. The restoration is clinically delivered and cemented using an identical temporary cement brand to serve as an interim fixed dental prosthesis during the evaluative period.

The success rate of the provisional restorations will be evaluated using the Revised World Dental Federation (FDI) criteria. For statistical analysis, the 5-point scale data will be dichotomized into "sufficient" and "insufficient" categories. Restorations scoring 1 to 3 points-representing clinically excellent/very good (1), clinically good (2), or clinically satisfactory (3) status-will be categorized as "sufficient" (success). Restorations scoring 4 (clinically insufficient/partially insufficient) or 5 (clinically poor/completely insufficient) points will be categorized as "insufficient" (failure). The success rate will be calculated as the final percentage of sufficient restorations within each independent arm.

The survival rate of the provisional restorations will be evaluated using the Revised FDI criteria. The calculation of the survival rate uses the dichotomization of the data into "restoration present including repaired" (scores 1-4) and "not present/failed" (score 5). Restorations scoring 1 to 4 points-encompassing all clinically sufficient statuses (1-3) and those evaluated as clinically insufficient but retained in function via repair or re-cementation (4)-will be categorized as "restoration present including repaired" (survived). Restorations scoring 5 points, indicating completely insufficient status or a restoration that is no longer present, will be categorized as "not present/failed". Cumulative survival probabilities over time will be estimated using the Kaplan-Meier method.

The safety and clinical durability profiles of the provisional fixed dental restorations will be evaluated based on the frequency and specific types of technical, mechanical, or biological complications documented during the follow-up period. Data will be analyzed and reported independently for each study arm as the absolute count (n) and the percentage (%) of restorations experiencing at least one complication, utilizing descriptive and intra-group longitudinal statistics

Objective clinical evaluation of the chewing function through occlusal contact distribution. The assessment will be performed using extra-thin articulation paper (<10 μm) under light masticatory force in centric relation. The examining dentist will evaluate whether ideal occlusal contact is established and if forces are evenly distributed across the dental arch (recorded as a binary outcome: "Yes/Acceptable Occlusion" or "No/Unacceptable Occlusion"). Data will be reported as the frequency and percentage of successful occlusal alignment within each independent study arm, tracking longitudinal intra-group changes.