Published April 1, 2026 | Version v1
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The Role of Prosthetic Designs in Restoring Vertical Dimension in Edentulous Jaws

Authors/Creators

  • 1. 1. PhD, Associate Professor Department of Hospital Orthopedic Dentistry Tashkent Medical University, Tashkent, Uzbekistan
  • 2. 2. DSc, Professor Department of Hospital Orthopedic Dentistry Tashkent Medical University, Tashkent, Uzbekistan
  • 3. 3.DSc, Professor Department of Propedeutics of Therapeutic Dentistry Tashkent Medical University, Tashkent, Uzbekistan
  • 4. 4.DSc, Associate Professor Department of Propedeutics of Orthopedic Dentistry Tashkent Medical University, Tashkent, Uzbekistan
  • 5. 5. DSc, Associate Professor Department of Faculty Orthopedic Dentistry Tashkent Medical University, Tashkent, Uzbekistan

Description

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/CAMmilled 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 digita
l 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.

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