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- Johnsson, Ann-Cathrin, et al.
(author)
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Subjective evaluation of orthodontic treatment and potential side effects of bonded lingual retainers.
- 2007
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In: Swedish dental journal. - 0347-9994. ; 31:1, s. 35-44
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Journal article (peer-reviewed)abstract
- The primary aim of this study was to evaluate our patients' experience of their treatment period with a fixed appliance and their opinions about the results five years after completion of active treatment. A second aim was to assess bonded lingual retainers and their potential side effects. A final aim was to compare the results in a postgraduate clinic (Göteborg) and a specialist clinic (Vänersborg). This study included 170 patients who finished their active treatment in 1997-1998. Eighty-three patients were from Göteborg (postgraduate clinic) and 87 from Vänersborg (specialist clinic). The patients were examined for visible calculus, approximal caries in the anterior regions, gingival recessions and the status of existing retainers in the upper and lower anterior teeth. All patients completed a questionnaire and were interviewed after undergoing a clinical examination. The statistical methods used were descriptive analysis and the chi-square test. The main reason for orthodontic treatment was appearance and most patients (94%) were satisfied with their treatment result. Our results showed a significantly higher frequency of loosened or fractured retainers at the postgraduate clinic compared to the specialist clinic (p < 0.01), which might be explained by operator sensitivity in bonding retainers. There was a tendency for calculus to develop more easily with than without retainers. CONCLUSION: Patient satisfaction of the treatment given at the postgraduate clinic was the same as at the specialist clinic except for more frequent loosening of bonded retainers.
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| 3. |
- Westerlund, Anna, 1970, et al.
(author)
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Bonded retainers maintain a high-standard orthodontic treatment outcome long term
- 2015
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In: Journal of the World Federation of Orthodontists. - : Elsevier BV. - 2212-4438. ; 4:2, s. 78-84
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Journal article (peer-reviewed)abstract
- Background: Numerous studies have demonstrated deterioration of orthodontic treatment outcome postretention; however, few studies present results in cases still in retention long term. The aim of the present study was to evaluate orthodontic treatment outcomes in patients with teeth still in retention at 10 years post-treatment. Methods: This longitudinal study enrolled 108 children who received bonded lingual retainers after treatment with a full fixed appliance. Retainer extension and morphologic stability, as measured by weighted peer assessment ratings (wPAR), were recorded at pretreatment (t0), immediately post-treatment (t1), 5 years post-treatment (t5), and 10 years post-treatment (t10). The t10 results were compared with those from an untreated control group matched on age and sex. Post-treatment stability was additionally tested for correlation to age, sex, malocclusion, and extraction therapy. Results: At the group level, there was a significant mean reduction in wPAR of 74% at t10 (P < 0.001). Additionally, the mean wPAR was significantly better than was that in the control group. At the patient level, 57% of patients were categorized as "greatly improved." The only factor that could be correlated to post-treatment changes (from t1 to t10) was the presence of at least one bonded retainer ( P < 0.05). Conclusion: A "high standard orthodontic treatment outcome" could be maintained 10 years post-treatment by keeping the bonded retainers in both the upper and lower arches. Orthodontic patients expect the aesthetics to be maintained over time. The results from this study, that bonded lingual retainers maintain the orthodontic treatment result for 10 years, are valuable information for the clinician when giving the patients advice and recommendations regarding retainer maintenance. © 2015 World Federation of Orthodontists.
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