Cephalometric evaluation of maxillary complete, mandibular fixed-removable partial prosthesis: a 5-year longitudinal...

Area of Science:

• Dentistry
• Prosthodontics
• Oral Surgery

Background:

• Bone resorption in the jawbone is a common complication following tooth loss and prosthetic treatment.
• Complete dentures in the maxilla and removable partial dentures in the mandible are common prosthetic solutions.
• Free-end saddle partial dentures, particularly in the mandible, are associated with significant bone resorption.

Purpose of the Study:

• To evaluate the effect of bar-supported mandibular removable partial dentures on bone resorption.
• To compare bone resorption in the mandible and maxilla after 5 years of denture use.
• To assess the efficacy of bar-supported mandibular free-end saddle partial denture design in mitigating bone loss.

Main Methods:

• Lateral cephalometric films were taken from 10 subjects.
• Subjects were treated with maxillary complete dentures opposing bar-supported mandibular removable partial dentures.
• Bone resorption was quantified after a 5-year period of denture usage.

Main Results:

• Slight bone resorption was observed in the maxilla.
• A considerable amount of bone resorption occurred in the mandible.
• Comparison with previous studies suggests reduced bone resorption with the bar-supported design.

Conclusions:

• Bar-supported mandibular free-end saddle partial denture design appears to have beneficial effects.
• This design may reduce the rate of mandibular bone resorption compared to other removable partial denture designs.
• Further research is warranted to confirm these findings and explore long-term outcomes.