The Neutral Zone Approach with CAD-CAM Record Bases

Area of Science:

• Dentistry
• Prosthodontics
• Biomaterials Engineering

Background:

• Complete denture instability is often caused by poor fit and incorrect polished surface shapes.
• Severely resorbed alveolar ridges present significant challenges for denture retention, support, and stability.

Purpose of the Study:

• To present a case utilizing the neutral zone technique with CAD-CAM record bases for complete denture fabrication.
• To discuss the treatment steps and clinical implications for edentulous patients with atrophic ridges.

Main Methods:

• Fabrication of computer-aided design and computer-aided manufacturing (CAD-CAM) record bases.
• Recording a stable neutral zone and accurate jaw relation using CAD-CAM bases.
• Optimizing complete denture stability by arranging teeth and reforming polished surfaces within the neutral zone.

Main Results:

• The neutral zone technique, combined with CAD-CAM record bases, effectively improved denture stability.
• Accurate recording of the neutral zone and jaw relation was achieved, leading to optimized denture fit.
• Successful fabrication of a new complete denture for a patient with atrophic alveolar ridges was accomplished.

Conclusions:

• The neutral zone technique with CAD-CAM record bases offers a viable solution for complete denture fabrication in patients with severe ridge resorption.
• This approach enhances denture stability and patient satisfaction.
• Clinical implications include improved treatment outcomes for challenging edentulous cases.