US 12,415,020 B2
Method and system for production of anti-microbial orthodontic elastomeric ligatures
Masood Feizbakhsh, Esfahan (IR); Amir Sarrafzadeh, Tehran (IR); and Zohreh Ghazalbash, Mashhad (IR)
Filed by Masood Feizbakhsh, Esfahan (IR); Amir Sarrafzadeh, Tehran (IR); and Zohreh Ghazalbash, Mashhad (IR)
Filed on May 9, 2022, as Appl. No. 17/739,914.
Claims priority of provisional application 63/186,140, filed on May 9, 2021.
Prior Publication US 2022/0355000 A1, Nov. 10, 2022
Int. Cl. A61C 7/30 (2006.01); A61L 31/16 (2006.01)
CPC A61L 31/16 (2013.01) [A61C 7/303 (2013.01); A61L 2300/206 (2013.01); A61L 2300/404 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for production of anti-microbial orthodontic elastomeric ligatures, comprising the steps of:
a) preparing a coating solution by mixing an anti-bacterial agent, a polymer and a solvent by a ratio of 2 g anti-bacterial agent, 4 g polymer and 200 mL solvent;
b) selecting a hypo-allergic latex-free orthodontic elastomeric ligatures with an internal diameter of 0.045 inches and external diameter of 0.115 inches;
c) rinsing said hypo-allergic latex-free orthodontic elastomeric ligature in distilled water and drying at 60° C.;
d) spraying the anti-bacterial on the hypo-allergic latex-free orthodontic elastomeric ligature two times and drying for five minutes;
e) repeating step (d) five times, and
f) drying the elastomeric ligature at room temperature for 1 h.