Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study.
| Title: | Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study. |
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| Authors: | Song Hee Oh, Kyung-Yen Nahm, Seong-Hun Kim, Gerald Nelson |
| Source: | Imaging Science in Dentistry; Mar2020, Vol. 50 Issue 1, p96-14, 6p |
| Subject Terms: | CONE beam computed tomography, BONES, INCISORS, MALOCCLUSION, ALVEOLAR process, PERIODONTIUM |
| Abstract: | Purpose: The purpose of this study was to evaluate vertical bone loss and alveolar bone thickness in the maxillary and mandibular incisors of patients with skeletal class III malocclusion. This study also aimed to evaluate the periodontal condition of class III malocclusion patients who had not undergone orthodontic treatment. Materials and Methods: The sample included cone-beam computed tomography scans of 24 Korean subjects (3 male and 21 female). Alveolar bone thickness (ABT), alveolar bone area (ABA), alveolar bone loss (ABL), and fenestration of the maxillary and mandibular incisors were measured using 3-dimensional imaging software. Results: All incisors displayed an ABT of less than 1.0 mm from the labial surface to root level 7 (70% of the root length). A statistically significant difference was observed between the mandibular labial and lingual ABAs and between the maxillary labial and mandibular labial ABAs. The lingual ABA of the mandibular lateral incisors was larger than that of the mandibular central incisors. ABL was severe on the labial surface. A statistically significant difference was observed between the maxillary and mandibular labial ABL values (21.8% and 34.4%, respectively). Mandibular lingual ABL (27.6%) was significantly more severe than maxillary lingual ABL (18.3%) (P<0.05). Eighty-two fenestrations were found on the labial surfaces of the incisors, while only 2 fenestrations were observed on the lingual surfaces. Fenestrations were most commonly observed at root level 6. Conclusion: Careful evaluation is needed before orthodontic treatment to avoid iatrogenic damage of periodontal support when treating patients with class III malocclusion. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Song+Hee+Oh%22">Song Hee Oh</searchLink><br /><searchLink fieldCode="AR" term="%22Kyung-Yen+Nahm%22">Kyung-Yen Nahm</searchLink><br /><searchLink fieldCode="AR" term="%22Seong-Hun+Kim%22">Seong-Hun Kim</searchLink><br /><searchLink fieldCode="AR" term="%22Gerald+Nelson%22">Gerald Nelson</searchLink> – Name: TitleSource Label: Source Group: Src Data: Imaging Science in Dentistry; Mar2020, Vol. 50 Issue 1, p96-14, 6p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22CONE+beam+computed+tomography%22">CONE beam computed tomography</searchLink><br /><searchLink fieldCode="DE" term="%22BONES%22">BONES</searchLink><br /><searchLink fieldCode="DE" term="%22INCISORS%22">INCISORS</searchLink><br /><searchLink fieldCode="DE" term="%22MALOCCLUSION%22">MALOCCLUSION</searchLink><br /><searchLink fieldCode="DE" term="%22ALVEOLAR+process%22">ALVEOLAR process</searchLink><br /><searchLink fieldCode="DE" term="%22PERIODONTIUM%22">PERIODONTIUM</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose: The purpose of this study was to evaluate vertical bone loss and alveolar bone thickness in the maxillary and mandibular incisors of patients with skeletal class III malocclusion. This study also aimed to evaluate the periodontal condition of class III malocclusion patients who had not undergone orthodontic treatment. Materials and Methods: The sample included cone-beam computed tomography scans of 24 Korean subjects (3 male and 21 female). Alveolar bone thickness (ABT), alveolar bone area (ABA), alveolar bone loss (ABL), and fenestration of the maxillary and mandibular incisors were measured using 3-dimensional imaging software. Results: All incisors displayed an ABT of less than 1.0 mm from the labial surface to root level 7 (70% of the root length). A statistically significant difference was observed between the mandibular labial and lingual ABAs and between the maxillary labial and mandibular labial ABAs. The lingual ABA of the mandibular lateral incisors was larger than that of the mandibular central incisors. ABL was severe on the labial surface. A statistically significant difference was observed between the maxillary and mandibular labial ABL values (21.8% and 34.4%, respectively). Mandibular lingual ABL (27.6%) was significantly more severe than maxillary lingual ABL (18.3%) (P<0.05). Eighty-two fenestrations were found on the labial surfaces of the incisors, while only 2 fenestrations were observed on the lingual surfaces. Fenestrations were most commonly observed at root level 6. Conclusion: Careful evaluation is needed before orthodontic treatment to avoid iatrogenic damage of periodontal support when treating patients with class III malocclusion. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Imaging Science in Dentistry is the property of Korean Academy of Oral & Maxillofacial Radiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.5624/isd.2020.50.1.9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 96 Subjects: – SubjectFull: CONE beam computed tomography Type: general – SubjectFull: BONES Type: general – SubjectFull: INCISORS Type: general – SubjectFull: MALOCCLUSION Type: general – SubjectFull: ALVEOLAR process Type: general – SubjectFull: PERIODONTIUM Type: general Titles: – TitleFull: Alveolar bone thickness and fenestration of incisors in untreated Korean patients with skeletal class III malocclusion: A retrospective 3-dimensional cone-beam computed tomography study. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Song Hee Oh – PersonEntity: Name: NameFull: Kyung-Yen Nahm – PersonEntity: Name: NameFull: Seong-Hun Kim – PersonEntity: Name: NameFull: Gerald Nelson IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 22337822 Numbering: – Type: volume Value: 50 – Type: issue Value: 1 Titles: – TitleFull: Imaging Science in Dentistry Type: main |
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