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Crestal bone-level changes and patient satisfaction with mandibular overdentures retained by one or two implants with
Pravinkumar G Patil1, Liang Lin Seow2
1Senior Lecturer, Division of Clinical Dentistry, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia.
The Journal of Prosthetic Dentistry
|September 28, 2019
Summary
Single-implant-retained overdentures offer a viable option for the edentulous mandible, showing comparable bone loss and patient satisfaction to two-implant systems after one year. This immediate loading protocol demonstrates promising clinical outcomes for single-implant solutions.
Area of Science:
- Dental Implantology
- Prosthodontics
- Oral Surgery
Background:
- Single-implant-retained overdentures are an alternative treatment for edentulous mandibles.
- Clinical data on immediate loading protocols for single-implant mandibular overdentures is limited.
Purpose of the Study:
- To prospectively evaluate crestal bone-level changes and patient satisfaction.
- To compare outcomes of mandibular overdentures retained by 1 or 2 titanium-zirconium (Ti-Zr) implants using immediate loading after one year.
Main Methods:
- 36 Ti-Zr implants were placed in 24 participants (12 with single central implants, 11 with two interforaminal implants).
- Mandibular overdentures were retained using LOCATOR attachments with an immediate loading protocol.
- Crestal bone levels were assessed via digital periapical radiographs, and patient satisfaction was measured using a visual analog scale (VAS) at 1 month and 1 year.
Main Results:
- At 1 year, mean crestal bone loss was 0.88 mm for single-implant and 0.67 mm for two-implant groups (P=.248).
- Patient satisfaction (VAS scores) increased from baseline to 1 year in both groups, with no significant difference between single and two-implant configurations (P=.341).
Conclusions:
- Single-implant-retained mandibular overdentures with immediate loading show comparable crestal bone-level changes and patient satisfaction to two-implant systems after one year.
- This approach represents a potentially viable treatment option for the edentulous mandible.
