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Objective:The restoration of the vertical dimension of occlusion (VDO) plays a critical role in functional rehabilitation and esthetic outcomes for edentulous patients. This study aimed to compare the clinical effectiveness of three prosthetic approaches—conventional, individualized, and CAD/CAM- milled complete dentures—in maintaining VDO, enhancing muscle activity, and improving patient satisfaction. Materials and Methods:Thirty edentulous patients (aged 55–75) were randomly divided into three groups (n = 10): Group A:Conventionalacrylicdentures Group B: Individualized dentures (phonetic and esthetic methods) Group C: CAD/CAM-milled digital dentures VDO was evaluated at five time points (baseline, post-insertion, 1, 3, and 6 months) using phonetic, esthetic, and mechanical techniques. Masseter EMG activity and patient satisfaction (5-point Likert scale) were also assessed. Statistical analysis included ANOVA and paired t-tests (p < 0.05). Results:Group C demonstrated the most stable VDO (mean variation: ±0.6 mm), followed by Group B (±1.2 mm) and Group A (±2.1 mm). EMG recordings showed significantly higher masticatory muscle activity in Groups B and C compared to Group A. Patient satisfaction scores were highest in Group C, particularly in aesthetics (4.8) and comfort (4.7), with statistically significant differences among groups (p < 0.01). Conclusion:CAD/CAM-milled dentures provide superior outcomes in VDO preservation, functional performance, and patient-reported satisfaction compared to conventional and individualized methods. The integration of digital technologies in complete denture fabrication enhances treatment predictability and patient-centered care. Clinicians are encouraged to adopt CAD/CAM or individualized approaches where appropriate to optimize long-term rehabilitation in edentulous patients.

Background:Polymethyl methacrylate (PMMA) has long been the standard for denture base fabrication, but conventional heat- and cold-cured methods present drawbacks such as porosity, residual monomer release, and limited mechanical strength. Recently, UV-polymerized acrylic resins have emerged as a promising alternative. Objective:To review and synthesize current scientific data on the mechanical, thermal, chemical, and biological properties of UV-polymerized acrylic materials for denture bases and evaluate their clinical potential. Methods:A systematic literature review was conducted using Scopus, PubMed, ScienceDirect, and Google Scholar databases, focusing on articles published between 2014 and 2024. Forty-one studies were included, covering laboratory tests, clinical evaluations, and material technology assessments. Key parameters reviewed included flexural strength, surface hardness, porosity, residual monomer content, and biocompatibility. Results:UV-polymerized resins demonstrated improved flexural strength (120–140 MPa) and surface hardness (22–27 VHN) compared to traditional PMMA. SEM analysis showed smoother, less porous surfaces, aiding in microbial resistance and color stability. Residual monomer release was notably lower (?0.2%), and cytotoxicity was minimal. Thermal testing revealed dimensional changes below 0.4% After 500 cycles.These properties indicate enhanced safety and durability.