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Maxillofacial prostheses of chlorinated polyethylene
Journal of Biomedical Materials Research
|May 1, 1978
Summary
Chlorinated polyethylenes (CPE) offer superior properties for maxillofacial prostheses compared to existing materials. These improved prostheses demonstrate excellent aesthetics and patient acceptance, with easy handling in dental labs.
Area of Science:
- Biomaterials Science
- Polymer Chemistry
- Prosthodontics
Background:
- Maxillofacial prostheses require materials with enhanced physical and aesthetic properties.
- Thermoplastic elastomers, specifically chlorinated polyethylenes (CPE), present promising characteristics for prosthetic applications.
Purpose of the Study:
- To develop and evaluate improved maxillofacial prostheses using chlorinated polyethylenes (CPE).
- To compare the performance of CPE-based prostheses against commercially available materials.
Main Methods:
- CPE resins were compounded with polymers and pigments, processed into sheets, and molded into prostheses at 190°C.
- Physical properties were assessed using standard techniques, and skin irritation was evaluated via rabbit patch tests.
- Clinical evaluations were performed on human volunteers, with direct comparisons to commercial materials.
Main Results:
- CPE-based prostheses exhibited superior physical properties compared to three commercial materials.
- The CPE material was comparable to the best commercial options in remaining properties, showing overall significant superiority.
- Skin irritation studies showed no adverse effects.
Conclusions:
- Chlorinated polyethylenes provide a significantly superior material for maxillofacial prostheses.
- The fabrication process is straightforward for dental laboratories, yielding prostheses with excellent aesthetics and patient acceptability.