Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study
Abstract Background Refinements are very common in clear aligner treatments. The aim of this study is to assess whether the predictability of deep overbite correction is similar over several refinements using clear aligners (Invisalign, Align Technology, San Jose, Calif) and examine the accuracy of...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BMC
2024-03-01
|
| Series: | BMC Oral Health |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12903-024-04099-8 |
| _version_ | 1827315722131341312 |
|---|---|
| author | Jessica Kang Hyeran Helen Jeon Nishat Shahabuddin |
| author_facet | Jessica Kang Hyeran Helen Jeon Nishat Shahabuddin |
| author_sort | Jessica Kang |
| collection | DOAJ |
| description | Abstract Background Refinements are very common in clear aligner treatments. The aim of this study is to assess whether the predictability of deep overbite correction is similar over several refinements using clear aligners (Invisalign, Align Technology, San Jose, Calif) and examine the accuracy of vertical movement and inclination change of individual teeth. Methods This retrospective study included 20 deep bite patients (7M and 13F; 32.63 ± 11.88 years old; an initial overbite of 5.09 ± 0.98 mm), consecutively treated from September 2016 and March 2023, who completed at least two sets of aligners, including refinements. The initial, predicted, and achieved models were exported from ClinCheck or OrthoCAD (Cadent Inc, Carlstadt, NJ) and superimposed via best-fit surface-based registration using SlicerCMF (version 4.9.0; cmf.slicer.org). We also examined 15 out of 20 patients who completed treatments. The overbite correction and changes in vertical movement and inclination for individual teeth were measured. Descriptive statistics and a paired t-test or Wilcoxon signed-rank test were performed. P < 0.05 was considered statistically significant. Results The mean accuracy of overbite correction was 37.63% after 1st set, followed by 11.19%, 6.32%, and 13.80% (2nd-4th sets), respectively. There were statistically significant differences between the predicted and achieved vertical movements and inclination changes for all teeth for the 1st and 2nd sets. For the completed cases, the mean overbite correction was 38.54% compared to the initially planned overbite correction, which is similar to one of the 1st set. Still, the vertical movements and inclination changes of all teeth present statistically significant differences between the initially planned and finally achieved movements except for maxillary lateral incisor torque. Conclusions The most overbite correction occurs during the 1st set of aligners, and refinement treatment does not significantly improve the deep bite correction. |
| first_indexed | 2024-04-24T23:03:04Z |
| format | Article |
| id | doaj.art-d82d8ee0337547428161cf5773e4526a |
| institution | Directory Open Access Journal |
| issn | 1472-6831 |
| language | English |
| last_indexed | 2024-04-24T23:03:04Z |
| publishDate | 2024-03-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Oral Health |
| spelling | doaj.art-d82d8ee0337547428161cf5773e4526a2024-03-17T12:40:29ZengBMCBMC Oral Health1472-68312024-03-0124111110.1186/s12903-024-04099-8Does aligner refinement have the same efficiency in deep bite correction?: A retrospective studyJessica Kang0Hyeran Helen Jeon1Nishat Shahabuddin2Department of Orthodontics, School of Dental Medicine, University of PennsylvaniaDepartment of Orthodontics, School of Dental Medicine, University of PennsylvaniaDepartment of Orthodontics, School of Dental Medicine, University of PennsylvaniaAbstract Background Refinements are very common in clear aligner treatments. The aim of this study is to assess whether the predictability of deep overbite correction is similar over several refinements using clear aligners (Invisalign, Align Technology, San Jose, Calif) and examine the accuracy of vertical movement and inclination change of individual teeth. Methods This retrospective study included 20 deep bite patients (7M and 13F; 32.63 ± 11.88 years old; an initial overbite of 5.09 ± 0.98 mm), consecutively treated from September 2016 and March 2023, who completed at least two sets of aligners, including refinements. The initial, predicted, and achieved models were exported from ClinCheck or OrthoCAD (Cadent Inc, Carlstadt, NJ) and superimposed via best-fit surface-based registration using SlicerCMF (version 4.9.0; cmf.slicer.org). We also examined 15 out of 20 patients who completed treatments. The overbite correction and changes in vertical movement and inclination for individual teeth were measured. Descriptive statistics and a paired t-test or Wilcoxon signed-rank test were performed. P < 0.05 was considered statistically significant. Results The mean accuracy of overbite correction was 37.63% after 1st set, followed by 11.19%, 6.32%, and 13.80% (2nd-4th sets), respectively. There were statistically significant differences between the predicted and achieved vertical movements and inclination changes for all teeth for the 1st and 2nd sets. For the completed cases, the mean overbite correction was 38.54% compared to the initially planned overbite correction, which is similar to one of the 1st set. Still, the vertical movements and inclination changes of all teeth present statistically significant differences between the initially planned and finally achieved movements except for maxillary lateral incisor torque. Conclusions The most overbite correction occurs during the 1st set of aligners, and refinement treatment does not significantly improve the deep bite correction.https://doi.org/10.1186/s12903-024-04099-8Deep biteInvisalignClear alignersPredictabilityRefinement |
| spellingShingle | Jessica Kang Hyeran Helen Jeon Nishat Shahabuddin Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study BMC Oral Health Deep bite Invisalign Clear aligners Predictability Refinement |
| title | Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study |
| title_full | Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study |
| title_fullStr | Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study |
| title_full_unstemmed | Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study |
| title_short | Does aligner refinement have the same efficiency in deep bite correction?: A retrospective study |
| title_sort | does aligner refinement have the same efficiency in deep bite correction a retrospective study |
| topic | Deep bite Invisalign Clear aligners Predictability Refinement |
| url | https://doi.org/10.1186/s12903-024-04099-8 |
| work_keys_str_mv | AT jessicakang doesalignerrefinementhavethesameefficiencyindeepbitecorrectionaretrospectivestudy AT hyeranhelenjeon doesalignerrefinementhavethesameefficiencyindeepbitecorrectionaretrospectivestudy AT nishatshahabuddin doesalignerrefinementhavethesameefficiencyindeepbitecorrectionaretrospectivestudy |