Injection laryngoplasty uses:
Injection laryngoplasty uses calcium hydroxylapatite, absorbable gelatin paste (ie, Gelfoam paste), Bioplastique, or fat. The substance is injected laterally into the vocal fold to displace it medially. The use of calcium hydroxylapatite in this context is a recent development and appears to generate minimal tissue reaction and produce a long-lasting result.
Fat
Gelfoam
Calcium hydroxyapatite
All of the above