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. 2013 Nov;83(6):966-72.
doi: 10.2319/030113-174.1. Epub 2013 May 24.

Orthodontic pain: an interaction between age and sex in early and middle adolescence

Satpal S Sandhu  1 , Jasleen Sandhu
Affiliations

Orthodontic pain: an interaction between age and sex in early and middle adolescence

Satpal S Sandhu et al. Angle Orthod. 2013 Nov.

Abstract

Objective: To investigate the age and sex interaction effect on orthodontic pain in adolescence during the initial phase of fixed orthodontic treatment.

Materials and methods: Three hundred participants (mean age 13.85 ± 1.98 years; 152 female, 148 male) met all inclusion criteria and enrolled in the study designed as 2 × 2 factorial trial with two levels each for age (11-14 years; 14-17 years) and sex (male; female). A 0.16-inch superelastic NiTi wire was used in a 0.022-inch slot (Roth's prescription) preadjusted edgewise appliance for initial leveling and alignment of mandibular anterior dentition. The follow-up period was 7 days. Pain was assessed by using 100 mm visual analog scale for one baseline and nine follow-up repeated measurements at prespecified time points. Data were analyzed by using generalized linear mixed effect model analysis.

Results: Three participants were lost to follow-up, and 17 participants were not considered for analysis due to incomplete or improperly completed questionnaire. Therefore, 280 participants (mean age 13.96 ± 2.01 years; 138 female, 142 male) were analyzed for results. Results showed that age and sex interaction had statistically significant effect on pain (F = 3.56; P = .0151; df 3/218). In the 11-14 year age group, there was no significant difference for pain between male and female. In the 14-17 year age group, girls reported significantly greater pain compared to 14- to 17 year-old boys (t = 2.76; P = .0209). Pain reported by 14- to 17-year-old girls was also significantly greater compared to 11- to 14-year-old boys (t = 2.91; P = .0206).

Conclusions: Age and sex interaction has significant effect on orthodontic pain during adolescence, and 14- to 17-year-old girls experienced maximum pain.

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Figures

Figure 1. LS-means plot of VAS score for each group.
Figure 1.
LS-means plot of VAS score for each group.
Figure 2. LS-means plot of VAS score for age and sex interaction effect.
Figure 2.
LS-means plot of VAS score for age and sex interaction effect.
See this image and copyright information in PMC

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