Pain experience during initial alignment with three types of nickel-titanium archwires: A prospective clinical trial

Abstract

Objective: To clinically evaluate the pain intensity during the week following initial placement of three different orthodontic aligning archwires. Materials and Methods: A consecutive sample of 75 patients requiring upper and lower fixed orthodontic appliances were alternately allocated into three different archwires (0.014-inch superelastic NiTi, 0.014-inch thermoelastic NiTi or 0.014-inch conventional NiTi). Assessments of pain/discomfort were made on a daily basis over the first 7-day period after bonding by means of visual analog scale and consumption of analgesics. The maximum pain score was recorded. The possible associations between age, gender, degree of crowding, and teeth irregularity and the pain intensity were also examined. Demographic and clinical differences between the three groups were compared with chi-square test or analysis of variance (ANOVA) test. Results: No statistically significant differences were found in the pain intensity when the three aligning NiTi archwires were compared (P 5 .63). No significant differences in pain perception were found in terms of gender, age, lower arch crowding, and incisor irregularity. The intake of analgesics was the least in the superelastic NiTi group. Conclusions: The three forms of NiTi wires were similar in terms of pain intensity during the initial aligning stage of orthodontic fixed appliance therapy. Gender, age, and the degree of crowding have no effect on the perceived discomfort experienced by patients undergoing fixed orthodontic treatment. (Angle Orthod. 2015;85:1021-1026

Pain and discomfort during the first week of rapid maxillary expansion (RME) using two different RME appliances: A randomized controlled trial

“…Pain intensity levels reported here were low overall compared with those reported in studies examining pain during conventional RME treatment 10,13 and pain in the first week with a fixed appliance, [7][8][9] indicating that RME treatment, both conventional and skeletal, is well accepted by patients in this young age group. Analgesic consumption was consequently low.…”

“…To minimize these dental side effects, which likely increase the risk of relapse, skeletally anchored RME appliances have been introduced. [4][5][6] Pain and discomfort are well-known side effects of orthodontic treatment with fixed appliances, [7][8][9] but few studies [10][11][12] have explored pain and discomfort during RME treatment. These few studies have concluded that most children undergoing RME report pain, which generally occurs during the initial phase and diminishes thereafter.…”

The effects of menstrual phase on orthodontic pain following initial archwire engagement

“…ICON is an index that evaluates the severity of malocclusion among patients (Liao et al , ). Our results revealed that ICON was not significantly correlated with orthodontic pain levels ( β = −0.1, 95% CI: −0.2~0.1), which was consistent with those published previously (Abdelrahman et al , ; Markovic et al , ). Moreover, we failed to find any correlation between age and orthodontic pain levels.…”

Pain level between clear aligners and fixed appliances: a systematic review

“…Despite that, there are controversial results about the correlation between the irregularity index and the perception of pain. Some studies found that there is no correlation [52][53][54], but a recent one found that crowding is a risk factor, and with each increase in crowding, there is a 1.10 times increase in painful sensation [55].…”