3D Assessment of Mandibular Bone Loss Via STL Superimposition After Complete Denture Occlusal Adjustment

Badr University20 enrolled

Overview

STL registration-based superimposition is an advanced technique for assessing mandibular bone resorption in removable complete denture (RCD) patients. This 3D method involves aligning and comparing digital models of the mandible before and after RCD use, offering high accuracy and comprehensive analysis. The process includes 3D scanning, STL conversion, registration, superimposition, and quantification. Occlusal equilibration of RCDs plays a crucial role in distributing masticatory forces and influencing bone resorption patterns. Studies using this technique have revealed non-uniform resorption, with variations in different regions of the mandible. While offering numerous advantages over traditional methods, challenges include potential registration errors and the need for specialized equipment and expertise. Future developments may incorporate machine learning, biomechanical modeling, and long-term studies to enhance understanding and clinical application of this technology in prosthodontics and oral surgery.

STL registration-based superimposition is an innovative technique for evaluating mandibular bone resorption in patients using removable complete dentures (RCDs). This 3D method aligns and compares digital mandible models from different time points, providing precise volumetric and surface change measurements. The process involves 3D scanning, STL file conversion, model registration, superimposition, and quantification. Occlusal equilibration of RCDs is crucial for distributing masticatory forces evenly, influencing bone resorption patterns. Research using this technique has shown that mandibular bone resorption is non-uniform, with variations across different mandibular regions. While offering superior accuracy and comprehensive analysis compared to traditional methods, this approach faces challenges such as potential registration errors and the need for specialized equipment and expertise. Future developments may incorporate machine learning, biomechanical modeling, and longitudinal studies to enhance understanding and clinical application in prosthodontics and oral surgery.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Interventions

Occlusal equilibration of complete denture using articulating paperOTHER

Occlusal equilibration of complete dentures is vital for ensuring proper function, comfort, and longevity. The process aims to evenly distribute occlusal forces, eliminate premature contacts, improve stability, reduce wear, and minimize tissue trauma. It involves methods like the articulating paper technique, pressure indicator paste, T-Scan digital analysis, and clinical observation. The process includes evaluating centric and eccentric contacts, making fine adjustments, and achieving balanced articulation. Regular follow-ups are essential to monitor occlusion and make necessary adjustments, contributing to patient satisfaction and denture lifespan.

Occlusal equilibration of complete denture using occulosenseOTHER

Occulosense denture equilibration is a digital occlusal analysis technique used to optimize denture fit and function. It employs a thin sensor placed between the dentures to measure bite force and timing. The system provides real-time data on occlusal contacts, allowing dentists to identify and adjust pressure points precisely. This process ensures even distribution of bite forces, enhancing denture stability, comfort, and longevity. T-Scan equilibration can significantly improve patient satisfaction by reducing pain, increasing chewing efficiency, and minimizing denture-related issues like sore spots and uneven wear.

Eligibility

Sex: ALLMin age: 45 YearsMax age: 75 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria * Completely edentulous patients ranging from age 45 to 75 years * Angle's Class I skeletal relationship * Normal facial symmetry * Cooperative patients * Adequate inter-arch space not less than 12mm Exclusion Criteria * Temporomandibular disorders * Uncontrolled diabetes * Bleeding disorders or anticoagulant therapy * Flabby tissues or sharp mandibular residual ridge. * Heavy smokers. * Patient's with neuromuscular disorders * Patients on chemotherapy or radiotherapy * Severe psychiatric disorders * Angle's class II and III skeletal relationship

Outcomes

Primary Outcomes

3D Quantification Assessment of Mandibular Bone Resorption

3D quantification assessment of mandibular bone resorption uses advanced imaging techniques like Cone Beam Computed Tomography (CBCT) and digital 3D software to measure and analyze bone loss in the lower jaw. This process is essential for accurate diagnosis, treatment planning (e.g., implants), and monitoring bone changes over time. It provides precise measurements, visual representations, and comprehensive analysis of bone density and volume, aiding in better clinical outcomes. Despite its advantages, it can be costly and involves radiation exposure, making it less accessible in some practices.

Time frame: Baseline, thee months, six months and twelve months

Secondary Outcomes

Patient Satisfaction

The Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT) containing 19 questions were obtained from each of the seven conceptual domains of the OHIP (functional limitation, physical pain, psychologic discomfort, physical disability, psychologic disability, social disability, and handicap)