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Title: Factors affecting the outcome of fixed appliance therapy in the adolescent patient
Author: Williams , Julie Caroline
ISNI:       0000 0004 5921 3625
Awarding Body: University of Bristol
Current Institution: University of Bristol
Date of Award: 2014
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Introduction: The aim of this randomised controlled trial was to quantify the effect of chewing gum, used as an analgesic during the early stages of fixed appliance therapy in adolescents, on orthodontic outcome. Setting and sample: 1002 patients were recruited from 9 Hospital Orthodontic Departments across the South West region. The sample comprised 603 adolescent orthodontic patients (222 male, 381 female) aged 12 to 16 years who had completed treatment and for whom PAR scores were available at the start and end of treatment. Methods: A randomised multi-centred trial with two parallel groups, either allocated to chew gum for pain relief following fixed appliance placement and adjustment, or asked not to chew gum as is normal custom and practice and instead use ibuprofen if required. Patient, operator and appliance prescription data were collected from the clinical records for the total treatment time and analysed using parametric tests and generalised linear modelling. For all hypothesis tests, statistical significance was predetermined at a = 0.05. The measures of orthodontic outcome investigated were: duration of treatment, number of visits, reduction in PAR score and number, location and timing of attachment failure . Results: The use of chewing gum for pain relief had no clinically significant effect on any of the measures of outcome. The average treatment time was 18.3 months (range 6.4 to 46.3 months, SD 6.3). The mode total number of visits was 9 (range 4 to 37 viSits). The mean PAR score reduction was 83.5%.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (D.D.S.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available