Abstract
BackgroundThe quality of life in Class III malocclusion patients are worse than those without the disorder and previous studies have shown that surgical orthodontic treatment has a different effect on these patients compared with mild or moderate malocclusion. This study aimed to investigate the changes in quality of life in patients with Class III malocclusion during surgical orthodontic treatment in Chinese young adults.MethodsThe 14-item Short Form Oral Health Impact Profile (OHIP-14), and the 22-item Orthognathic Quality of Life Questionnaire (OQLQ) were used to assess the effect of surgical orthodontic treatment on the quality of life in 21 patients with Class III malocclusion at pre-treatment (T0), pre-surgical orthodontic treatment (6 to 8 months, T1) and post-surgical orthodontic treatment (6 to 8 months after surgery, T2), and 24 healthy individuals were included as controls. The comparisons in numerical variables between patients and controls were performed using Mann-Whitney U test. The scores of the two questionnaires between T0, T1, T2 and controls (Tc) were compared using generalized estimating equation.ResultsAccording to OHIP-14 questionnaire, the mean scores in T0 and T1 were higher than those in T2 and Tc (P < 0.001), and a significant decrease was observed after post-surgical orthodontic treatment (P < 0.001), which achieved a level similar to the control group (P > 0.05). As to OQLQ questionnaire, the mean scores of all domains showed a significant increase between T0 and T1 except for awareness of dentofacial aesthetics (P > 0.05) and social aspects of dentofacial deformity (P > 0.05), followed by a significant decrease between T1 and T2.ConclusionSurgical orthodontic treatment may improve quality of life in patients with Class III malocclusion, but pre-surgical orthodontic treatment may have an adverse effect on quality of life.
Highlights
The quality of life in Class III malocclusion patients are worse than those without the disorder and previous studies have shown that surgical orthodontic treatment has a different effect on these patients compared with mild or moderate malocclusion
The patients completed surgical orthodontic treatment successfully, and all questionnaires were collected from the participants
The mean scores in T0 and T1 were higher than those in T2 and T2 and controls (Tc) (P < 0.001), and a significant decrease was observed after post-surgical orthodontic treatment, which achieved a level similar to the control group (P > 0.05)
Summary
The quality of life in Class III malocclusion patients are worse than those without the disorder and previous studies have shown that surgical orthodontic treatment has a different effect on these patients compared with mild or moderate malocclusion. This study aimed to investigate the changes in quality of life in patients with Class III malocclusion during surgical orthodontic treatment in Chinese young adults. A systematic review suggests that quality of life in Class III malocclusion patients is worse than those without this disorder [7]. The improvement of patients’ quality of life is an important indicator for evaluating the outcome of malocclusion treatment [8]. Surgical orthodontic treatment is one of the most important methods to treat malocclusion and facial deformities, and the quality of life in patients treated by surgical orthodontic treatment is better than before surgery [9,10,11]. Advances in technology contribute to more accurate diagnosis, and this means higher diagnostic capabilities to plan treatments for improvements in outcomes
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