Occlusal discrepancies in removable dentures are a common challenge faced by dental labs and dental technicians. These issues can lead to discomfort, functional problems, and patient dissatisfaction. Understanding the causes and applying effective solutions can enhance denture performance and longevity.
In this article, we will provide you with information about the causes and solutions leading to occlusal discrepancies in removable dentures.
Contents
1. Causes of Occlusal Discrepancies in Removable Dentures
1.1. Inaccurate Jaw Relation Records
Recording jaw relations based on a single static record can lead to improper occlusion. Removable denture occlusion must conform to the patient’s existing occlusal scheme to maintain functional harmony.
1.2. Lack of Support for the Denture Base
Poorly fitting denture bases cause instability, leading to occlusal imbalances. This often results from inadequate impressions or improper framework design.
1.3. Improper Occlusal Plane Alignment
If the occlusal plane is not aligned correctly with the natural dentition, it can create excessive forces on certain teeth, leading to discomfort and instability.
1.4. Processing Errors and Material Shrinkage
Acrylic shrinkage during processing can alter the occlusal relationships established during fabrication, leading to high spots and premature contacts.
1.5. Inadequate Adjustment and Occlusal Equilibration
If occlusal adjustments are not performed properly after denture fabrication, high spots or premature contacts can cause discomfort and improper function.
1.6. Natural Ridge Resorption and Occlusal Wear
Over time, the residual ridge changes, and artificial teeth wear down, causing occlusal changes that can impact the denture’s fit and function.
2. Solutions to Address Occlusal Discrepancies
2.1. Thorough Occlusal Analysis and Adjustments
Analyzing the existing occlusion and making necessary occlusal corrections before fabricating a removable denture is essential. Selective grinding can help eliminate interferences and create balanced contacts.
2.2. Accurate Jaw Relation Records
Recording centric relation accurately and ensuring a functional eccentric occlusion prevents occlusal discrepancies. When possible, extraoral adjustments on an articulator provide greater accuracy than intraoral adjustments.
2.3. Ensuring a Proper Occlusal Scheme
For tooth-supported dentures, occlusion should mimic natural dentition, whereas for distal extension cases, working side contacts should be achieved to evenly distribute stress.
2.4. Occlusal balance in cases of full denture restoration for both arches.
When restoring both arches with complete dentures, clinicians must achieve bilateral balanced occlusion to ensure optimal denture stability. They should carefully adjust occlusal contacts to maintain functional efficiency while also meeting aesthetic and phonetic requirements, especially during protrusive movements.
2.5. Strategic Tooth Placement
Artificial posterior teeth should not extend beyond the retromolar pad or steep inclines of the residual ridge to prevent instability. Additionally, artificial teeth should be positioned to direct occlusal forces toward primary support areas, such as the buccal shelf in the mandibular arch.
3. Conclusion
Occlusal discrepancies in removable dentures can significantly impact function and patient comfort. Dental technicians and labs must carefully assess occlusion at every stage from impression-taking to final adjustments—to ensure a well-balanced, functional denture. By addressing occlusal challenges proactively, dental professionals can improve denture stability, reduce stress on supporting structures, and enhance patient satisfaction.
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About XDENT LAB
XDENT LAB – Vietnam Dental Lab is a leading provider of high-quality removable dentures, specializing in lab-to-lab outsourcing services for dental labs in the USA. With a commitment to precision, efficiency, and reliability, XDENT LAB ensures that every prosthetic meets the highest industry standards. Our expert technicians utilize advanced technology and meticulous craftsmanship to deliver consistent, esthetically pleasing, and functionally superior removable dentures.
Partnering with XDENT LAB means gaining access to a dedicated team that understands the unique needs of dental labs and provides seamless solutions to enhance their service offerings
