Abstract
Background
The purpose of this study was to evaluate and compare in vivo force degradation of
elastomeric chains of four different companies over a period of 6 weeks using digital
force gauge.
Methods
A total of 25 participants making the total sample size of 100 were included in this
split mouth study. Force degradation of four elastomeric chain samples from different
manufacturers, Super Slick Chain (TP Orthodontics), AlastiK (3M Unitek), Dyna-Link
elastomeric chain (G&H Orthodontics), and Memory Chain (American Orthodontics), was
evaluated and compared among each other using a digital force gauge in the intraoral
environment at six time intervals (immediate, 1 hour, 24 hours, 1 week, 3 weeks, and
6 weeks). The elastomeric chain samples were stretched to a fixed distance of 16 mm
throughout the study period.
Results
There was a significant difference between the force degradation values of elastomeric
chains supplied by different manufacturers (P < 0.001). Maximum force degradation in all four groups was recorded in the first
hour of placement. After 6 weeks, the force degradation was found to be least with
Super Slick chain (55% ± 5%) and maximum with Dyna-Link chain (63% ± 4%).
Conclusions
Three of four elastomeric chains sustained an amount of force that can be considered
adequate for canine retraction. Only one elastomeric chain suffered a major loss of
force in such a way making it difficult to continue the retraction of canine after
6 weeks.
Keywords
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Article info
Publication history
Published online: October 27, 2018
Accepted:
September 20,
2018
Received:
June 13,
2018
Footnotes
Funding: The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests: Authors have completed and submitted the ICMJE Form for Disclosure of potential conflicts of interest. None declared.
Provenance and peer review: Non-commissioned and externally peer reviewed.
Identification
Copyright
© 2018 World Federation of Orthodontists.
