Dentosmile Disposable Cotton Rolls Cotton rolls are made from 100% pure cotton non-sterile. Helically wound to retain absorbea fluids firmly without collapsing for total dryisolated field .Available in special length & standard diameter. Dentosmile Dental Cotton Rolls are of premium quality. Made from 100% long fiber pure cotton. Highly absorbent pure white. Easy removal and minimal irritation. No chemical additives and starch free.