The prediction of impacted versus spontaneously erupted mandibular third molars
Abstract Background To evaluate the predictive capacity of orthodontists and oral maxillofacial surgeons (OMFSs) in anticipating the process of impaction or eruption of lower third molars (L3Ms) through the examination of serial panoramic radiographs. Methods Sixty-eight lower third molars (L3Ms) we...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-09-01
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| Series: | Progress in Orthodontics |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40510-021-00376-2 |
| _version_ | 1819151562781491200 |
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| author | Amanda Silva De Sousa José Valladares - Neto David Normando |
| author_facet | Amanda Silva De Sousa José Valladares - Neto David Normando |
| author_sort | Amanda Silva De Sousa |
| collection | DOAJ |
| description | Abstract Background To evaluate the predictive capacity of orthodontists and oral maxillofacial surgeons (OMFSs) in anticipating the process of impaction or eruption of lower third molars (L3Ms) through the examination of serial panoramic radiographs. Methods Sixty-eight lower third molars (L3Ms) were analyzed in 34 orthodontically treated patients without extraction. Twenty-seven OMFSs and 27 orthodontists were randomized in order to analyze the radiographs. Initially, the evaluators issued the prognosis for the L3Ms in XR1, a posterior for the XR1 + XR2. Concordance of the diagnosis was examined using Kappa statistics, and the differences between the groups of evaluators were examined using the chi-square test at p<0.05. Results When examining XR1 in cases where the teeth erupted spontaneously, the prognostic accuracy rate for OMFSs and orthodontists was similar, 63 and 65.7%, respectively (p=0.19). When evaluating XR1 + XR2, the accuracy among orthodontists (60%) was similar to that reported for XR1 (p=0.19), while OMFSs presented a reduction in the accuracy (55.3%, p<0.0001). When the L3Ms remained impacted, accuracy in XR1 was lower than in spontaneously erupting L3Ms, although similar between OMFSs (50.1%) and orthodontists (49.1%). Furthermore, for impacted L3Ms, when examining XR1 + XR2, the OMFSs presented a significant higher accuracy (71.8%, p <0.0001). Conclusions Orthodontists and OMFSs seem unable to predict spontaneous eruption or impaction of the lower third molars from single or longitudinal x-rays. When adding a second longitudinal x-ray, orthodontists and more significantly OMFSs tend to indicate more extractions. |
| first_indexed | 2024-12-22T14:35:23Z |
| format | Article |
| id | doaj.art-799bf4d2bcdc4831a80dbf2da40917b9 |
| institution | Directory Open Access Journal |
| issn | 2196-1042 |
| language | English |
| last_indexed | 2024-12-22T14:35:23Z |
| publishDate | 2021-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Progress in Orthodontics |
| spelling | doaj.art-799bf4d2bcdc4831a80dbf2da40917b92022-12-21T18:22:40ZengSpringerOpenProgress in Orthodontics2196-10422021-09-012211810.1186/s40510-021-00376-2The prediction of impacted versus spontaneously erupted mandibular third molarsAmanda Silva De Sousa0José Valladares - Neto1David Normando2Department of Orthodontics, Faculty of Dentistry, Federal University of ParáDepartment of Orthodontics, Federal University of GoiásDepartment of Orthodontics, Federal University of ParáAbstract Background To evaluate the predictive capacity of orthodontists and oral maxillofacial surgeons (OMFSs) in anticipating the process of impaction or eruption of lower third molars (L3Ms) through the examination of serial panoramic radiographs. Methods Sixty-eight lower third molars (L3Ms) were analyzed in 34 orthodontically treated patients without extraction. Twenty-seven OMFSs and 27 orthodontists were randomized in order to analyze the radiographs. Initially, the evaluators issued the prognosis for the L3Ms in XR1, a posterior for the XR1 + XR2. Concordance of the diagnosis was examined using Kappa statistics, and the differences between the groups of evaluators were examined using the chi-square test at p<0.05. Results When examining XR1 in cases where the teeth erupted spontaneously, the prognostic accuracy rate for OMFSs and orthodontists was similar, 63 and 65.7%, respectively (p=0.19). When evaluating XR1 + XR2, the accuracy among orthodontists (60%) was similar to that reported for XR1 (p=0.19), while OMFSs presented a reduction in the accuracy (55.3%, p<0.0001). When the L3Ms remained impacted, accuracy in XR1 was lower than in spontaneously erupting L3Ms, although similar between OMFSs (50.1%) and orthodontists (49.1%). Furthermore, for impacted L3Ms, when examining XR1 + XR2, the OMFSs presented a significant higher accuracy (71.8%, p <0.0001). Conclusions Orthodontists and OMFSs seem unable to predict spontaneous eruption or impaction of the lower third molars from single or longitudinal x-rays. When adding a second longitudinal x-ray, orthodontists and more significantly OMFSs tend to indicate more extractions.https://doi.org/10.1186/s40510-021-00376-2Third molarTooth extractionOrthodontistOral surgery |
| spellingShingle | Amanda Silva De Sousa José Valladares - Neto David Normando The prediction of impacted versus spontaneously erupted mandibular third molars Progress in Orthodontics Third molar Tooth extraction Orthodontist Oral surgery |
| title | The prediction of impacted versus spontaneously erupted mandibular third molars |
| title_full | The prediction of impacted versus spontaneously erupted mandibular third molars |
| title_fullStr | The prediction of impacted versus spontaneously erupted mandibular third molars |
| title_full_unstemmed | The prediction of impacted versus spontaneously erupted mandibular third molars |
| title_short | The prediction of impacted versus spontaneously erupted mandibular third molars |
| title_sort | prediction of impacted versus spontaneously erupted mandibular third molars |
| topic | Third molar Tooth extraction Orthodontist Oral surgery |
| url | https://doi.org/10.1186/s40510-021-00376-2 |
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