Background: Pain and discomfort are main concerns at the commencement of orthodontic treatment. It may have negative impact on compliance or even discourage patients from being treated. Orthodontic pain can be alleviated by paracetamol or use of chewing gum. However, studies comparing their effectiveness are scarce.
Objectives: To compare the effectiveness of paracetamol versus chewing gum for pain alleviation and to investigate the frequency of bracket loss during the first day of fixed orthodontic treatment.
Trail Design: Prospective randomized multicentre clinical trial.
Methods: Sixty patients (28 boys and 32 girls), between 12 and 18 years of age were randomly allocated either to take paracetamol (31 patients) or to use chewing gum (29 patients). After one arch bonding and insertion of the initial archwire, the patients rated the sensation of pain on a visual analogue scale with the jaw at rest and when biting after 6 hours (T1), at bedtime (T2), and the next morning (T3). Paracetamol (1000 mg) was taken 1 hour and chewing gum was used 10 minutes prior to pain rating at T2 and T3. A simple method of randomization was used in this study, and blinding of subjects and the operators to the type of intervention was not possible because of the nature of the treatments.
Results: There was no detectable difference in pain sensation between the groups at T1. At T2 and T3 the chewing gum group displayed higher mean values than the paracetamol group but when adjusting for age, gender, and mode of pain registration, there was no significant difference between the groups. There was no bracket loss in the chewing gum group, whereas two patients in the paracetamol group lost two brackets.
Conclusions: The effect of chewing gum and paracetamol for initial orthodontic pain relief seems equivalent. Short term use of chewing gum is not a risk factor for bracket loss.
Trial Registration: This study was not registered.
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