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Polyurethane elastomers as maxillofacial prosthetic materials.

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Journal of Dental Research

|April 1, 1978

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Researchers developed advanced polyurethane elastomers for maxillofacial uses. These materials exhibit ideal low modulus, high strength, and elongation properties for medical applications.

Area of Science:

Polymer Science
Biomaterials Engineering

Background:

Polyurethane elastomers are versatile biomaterials.
Maxillofacial applications require specific mechanical properties like low modulus, high strength, and elongation.

Purpose of the Study:

To synthesize and characterize polyurethane elastomers for maxillofacial applications.
To determine the optimal cross-link density and stoichiometry for desired material properties.

Main Methods:

Polymerization of aliphatic diisocyanate and polyether macroglycol.
Varying cross-link densities and hydroxyl/isocyanate (OH/NCO) ratios.
Mechanical property testing (modulus, strength, elongation).

Main Results:

Optimized stoichiometries (8,600–12,900 gm/mole/crosslink) and an OH/NCO ratio of 1.1.

Related Experiment Videos

Achieved polymers with low modulus, high strength, and high elongation.

Demonstrated suitability for maxillofacial applications.

Conclusions:

Tailored polyurethane elastomers can meet the demanding mechanical requirements for maxillofacial reconstruction.
Control over cross-linking and stoichiometry is crucial for optimizing elastomer performance.