Predictability of deep overbite correction using Invisalign
| dc.contributor.author | Fontaine-Sylvestre, Catherine | |
| dc.contributor.examiningcommittee | Piedade, Luis (Preventive Dental Science) Todescan, Reynaldo Jr. (Restorative Dentistry) | en_US |
| dc.contributor.supervisor | Drummond, Robert (Preventive Dental Science) | en_US |
| dc.date.accessioned | 2019-07-12T15:37:58Z | |
| dc.date.available | 2019-07-12T15:37:58Z | |
| dc.date.issued | 2019 | en_US |
| dc.date.submitted | 2019-06-24T19:40:36Z | en |
| dc.date.submitted | 2019-07-03T14:52:49Z | en |
| dc.date.submitted | 2019-07-03T15:47:51Z | en |
| dc.degree.discipline | Preventive Dental Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | OBJECTIVES: To investigate the predictability of deep bite correction with Invisalign® (Align Technology, Santa Clara, CA, USA). MATERIALS AND METHODS: This retrospective study included 60 adult patients who had undergone dual-arch orthodontic treatment exclusively with Invisalign®. Pre- and post-treatment digital models acquired from an iTero® scan were obtained from a single orthodontic practitioner. The ClinCheck® digital models of the final predicted outcome were obtained from Align Technology®. Linear values of pre-treatment, prediction and post-treatment overbite were measured using OrthoAnalyzer® (3Shape®, Copenhagen, Denmark) software. Overbite changes planned by ClinCheck® and overbite corrections obtained clinically were compared using a paired t-test (P < 0.05). A Spearman correlation coefficient was used to determine if larger overbite corrections predicted were correlated with poorer prediction accuracies. One-way analysis of variance (ANOVA) (P < 0.05) were used to determine if the severity of pre-treatment overbite, the number of active aligners, the number and type of bite opening mechanisms programmed in the ClinCheck®, and the number and type of mandibular premolars attachments significantly affected the prediction accuracy. RESULTS: A statistically significant difference was found between the ClinCheck® prediction and the clinical final result regardless of the pre-treatment deep bite severity (P < 0.05). Requesting more overbite correction in the ClinCheck® did not significantly affect the accuracy (ρ = 0.049). Variance ratio tests were not significant (P > 0.05), except for cases programmed with mandibular incisor proclination in ClinCheck® (P < 0.05). CONCLUSION: The mean prediction accuracy of deep overbite correction using Invisalign® was 37.67%. Lower incisor proclination seems to improve the prediction accuracy. Since the ClinCheck software significantly overestimates vertical changes, overcorrection of the finished occlusion is indicated. | en_US |
| dc.description.note | October 2019 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/34030 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.subject | Invisalign | en_US |
| dc.subject | Orthodontics | en_US |
| dc.title | Predictability of deep overbite correction using Invisalign | en_US |
| dc.type | master thesis | en_US |
| local.subject.manitoba | yes | en_US |