Impact of surgical orthodontic treatment on quality of life in Chinese young adults with class III malocclusion: a longitudinal study

Abstract

Background 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. Methods The 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 ( T 0 ), pre-surgical orthodontic treatment (6 to 8 months, T 1 ) and post-surgical orthodontic treatment (6 to 8 months after surgery, T 2 ), 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 T 0 , T 1 , T 2 and controls ( T c) were compared using generalized estimating equation. Results According to OHIP-14 questionnaire, the mean scores in T 0 and T 1 were higher than those in T 2 and T c ( 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 T 0 and T 1 except for awareness of dentofacial aesthetics ( P > 0.05) and social aspects of dentofacial deformity ( P > 0.05), followed by a significant decrease between T 1 and T 2 . Conclusion Surgical 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.

One-splint versus two-splint technique in orthognathic surgery for class III asymmetry: comparison of patient-centred outcomes

“…With regard to QoL, this study found that both the onesplint and the two-splint groups experienced significant improvement in OQLQ scores after treatment, which is similar to other studies on East Asian Class III OGS patients [30][31][32]. In addition, despite the worse QoL in the one-splint group pretreatment, there was no significant difference between the two groups in OQLQ post-treatment, suggesting a similar level of QoL was attained.…”

Oral Health-Related Quality of Life Changes in Patients with Dentofacial Deformities Class II and III after Orthognathic Surgery: A Systematic Review and Meta-Analysis

“…Details of the included studies are summarized in Table 1 . Among the 13 prospective before–after studies included, only 3 had a control group composed of: female students at the university who had a normal occlusion ( n = 14) [ 32 ], volunteers aged 19–20 years old attending a nonmedical, specialty university and with no jaw deformities ( n = 96) [ 24 ]; and healthy individuals, mainly patients’ relatives, classmates, or colleagues ( n = 24) [ 33 ]. The final sample size of patients with dentofacial deformities ranged from 14 to 85 subjects, and the mean of age ranged from 21.3 to 31 years.…”

Quality of Life in Orthodontic Cancer Survivor Patients—A Prospective Case–Control Study

“…Unlike, the authors found that there were no statistically significant differences regarding the OHIP-14 values before and after orthodontic treatment. However, most of the authors, who compared the OHIP-14 values before and after orthodontic treatment, found that the patients' quality of life had significantly improved after orthodontic treatment [27][28][29][30]. Moreover, Zheng et al [31] found that the positive impact of orthodontic treatment on the patients' quality of life depends on the type of malocclusion.…”

“…According to the authors, patients with class II benefitted the most from the space closure stage, whereas patients with class I malocclusion benefitted the most from alignment and levelling of their teeth, which is an initial stage of orthodontic treatment. Ni et al [29] assessed the OHIP-14 in patients with skeletal class III, who had been treated surgically. The authors found that during the decompensation phase of orthodontic treatment, the patients' quality of life had significantly decreased, whereas after the surgical orthodontic treatment, it had been significantly improved.…”