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. 2024 May 25;54(3):153-159.
doi: 10.4041/kjod23.160.

Effect of three common hot beverages on the force decay of orthodontic elastomeric chain within a 28-day period: An in vitro study

Maziar Nobahari  1 , Fatemeh Safari  1 , Allahyar Geramy  1 , Tabassom Hooshmand  2 , Mohammad Javad Kharazifard  3 , Sepideh Arab  1
Affiliations

Effect of three common hot beverages on the force decay of orthodontic elastomeric chain within a 28-day period: An in vitro study

Maziar Nobahari et al. Korean J Orthod. .

Abstract

Objective: This study aimed to assess the effects of commonly consumed hot drinks on the force decay of orthodontic elastomeric chains.

Methods: This in vitro experimental study evaluated 375 pieces of elastomeric chains with six rings placed on a jig. Four rings were stretched by 23.5 mm corresponding to the approximate distance between the canine and the second premolar. Fifteen pieces served as reference samples at time zero, and 360 pieces were randomized into four groups: control, hot water, hot tea, and hot coffee. Each group was further divided into six subgroups (n = 15) according to the different exposure periods. The specimens in the experimental groups were exposed to the respective solutions at 65.5°C four times per day for 90 seconds at 5-second intervals. The control group was exposed to artificial saliva at 37°C. The force decay of the samples was measured at 1, 2, 7, 14, 21, and 28 days using a universal testing machine. Data were analyzed using repeated-measures analysis of variance.

Results: Maximum force decay occurred on day 1 in all groups. The minimum force was recorded in the control group, followed by the tea, coffee, and hot water groups on day 1. At the other time points, the minimum force was observed in the tea group, followed by the control, coffee, and hot water groups.

Conclusions: Patients can consume hot drinks without concern about any adverse effect on force decay of the orthodontic elastomeric chains.

Keywords: Elastomeric chain; Force decay; Hot beverages; Orthodontics.

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Conflict of interest statement

CONFLICTS OF INTEREST

No potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1
The jig holding 15 pieces of stretched chains.
Figure 2
Figure 2
Mean force (N) in the study groups at different time points. CI, confidence interval.
See this image and copyright information in PMC

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