Force of Intermaxillary Latex Elastics from Different Suppliers: A Comparative In Vitro Study

The main characteristic of orthodontic intermaxillary elastics is the generated force. Therefore, it necessary to know exact properties for clinical use and their force degradation over time. Methods: A total 500 latex type 3/16” Medium from manufacturers Dentaurum, American Orthodontics, 3M, Ortho Organizers, G&H Orthodontics were tested; 100 each. was measured with a meter at time 0 2, 8, 24, 48 h. Elastics stored being stretched three times on 3D-printed board in an incubator 37 °C under controlled humidity. Shapiro–Wilk normality tests, ANOVA Bonferroni post hoc tests used. Results: mean initial among ranged 1.109 N 1.550 N, Dentaurum closest declared 1.255 newton. greatest occurred during first two hours; decrease within 24 h 20% 33% manufacturers. maximum observed elastics. smallest between 2 8 Organizers. Conclusion: Intermaxillary vitro differ individual attending clinician must be aware basic parameters when recommending them patients, measuring directly patient’s mouth might helpful.