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Advanced biomaterials used for a new telescopic retainer for removable dentures
1Department of Prosthodontics, J. W. Goethe University at Frankfurt am Main, Germany. weigl@em.uni-frankfurt.de
Journal of Biomedical Materials Research
|July 18, 2000
Summary
This study introduces a new telescopic retainer for removable dentures, featuring ceramic abutment crowns and gold copings. The retainer demonstrated favorable clinical outcomes, including reduced tooth mobility and good oral hygiene, meeting geriatric needs.
Area of Science:
- Dental Prosthetics
- Biomaterials Science
- Clinical Dentistry
Background:
- Telescopic retainers with ceramic abutment crowns and gold copings offer potential clinical advantages for removable dentures due to favorable tribological properties.
- A novel intraoral bonding technique was developed to achieve a precision fit for these new retainers in a clinical setting.
Purpose of the Study:
- To evaluate the clinical effects and performance of a new telescopic retainer system for removable dentures.
Main Methods:
- A prospective study followed 32 patients with 33 dentures supported by 147 abutments (natural teeth and implants) with various ceramic abutment crowns.
- Clinical assessments included plaque index (PI), gingival bleeding index (SBI), Periotest for tooth mobility, and patient-reported outcomes over a mean follow-up of 27.6 months.
Main Results:
- Low plaque accumulation (mean PI = 17.3%) and minimal gingival inflammation (mean SBI = 4.9%) were observed.
- Significant reduction in abutment tooth mobility (p < 0.001) and preserved osseointegration for implants were noted.
- High patient satisfaction was reported, with problem-free handling, constant adhesion, and no rocking movements; a 94.6% survival rate for ceramic copings was achieved.
Conclusions:
- The novel telescopic retainer system exhibits relevant clinical advantages, including improved stability and patient comfort, making it suitable for geriatric patients.
- The retainer's design and intraoral bonding technique contribute to favorable outcomes in terms of hygiene, periodontal health, and prosthetic stability.