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A randomised controlled trial to assess the pain associated with the debond of orthodontic fixed appliances

Mangnall, Louise Anne Ruth (2011)
M.Phil. thesis, University of Birmingham.

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Objectives: To determine patients' experiences of pain during treatment with fixed appliances, expectations of pain during debond and whether biting on a soft acrylic wafer during debond decreases the pain experienced. Method: Ethical approval was gained. Subjects were randomly allocated to the control or wafer group. A visual analogue scale (VAS) based questionnaire was completed pre-debond to determine their pain experience during treatment and expectations of pain during the debond. The appliances were debonded and those in the wafer group bit on a soft acrylic wafer. A second questionnaire was completed post-debond to assess the pain experienced Results: 90 subjects participated. Biting on an acrylic wafer significantly reduced the pain experienced when debonding the posterior teeth (P=<.05). 39% found the lower anterior teeth the most painful. The expected pain was significantly greater than that actually experienced (P=<.001). Greater pain during treatment correlated with increased expectations and increased actually experienced pain (P=<.001). Conclusions: Biting on a soft acrylic wafer during debond of the posterior teeth reduces the pain experienced. The lower anterior teeth are the most painful. The pain expected is significantly greater than the actual experience. Patients who had greater pain during treatment expected and experienced greater pain at debond.

Type of Work:M.Phil. thesis.
Supervisor(s):Scholey, J
School/Faculty:Colleges (2008 onwards) > College of Medical & Dental Sciences
Department:School of Dentistry, Department of Orthodontics
Subjects:RK Dentistry
Institution:University of Birmingham
ID Code:1502
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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