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Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns
OBJECTIVE: The present study aimed to assess the morphology of symphysis and alveolar bone thickness (ABT) surrounding mandibular incisors in thalassemic patients, as compared to unaffected individuals. METHODS: This case-control study was conducted on lateral cephalograms of 60 thalassemic and 60 u...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dental Press International
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9128807/ https://www.ncbi.nlm.nih.gov/pubmed/35613245 http://dx.doi.org/10.1590/2177-6709.27.2.e22205.oar |
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author | KHOJASTEPOUR, Leila NADERI, Atefe AKBARIZADEH, Fatemeh MOVAHHEDIAN, Najmeh AHRARI, Farzaneh |
author_facet | KHOJASTEPOUR, Leila NADERI, Atefe AKBARIZADEH, Fatemeh MOVAHHEDIAN, Najmeh AHRARI, Farzaneh |
author_sort | KHOJASTEPOUR, Leila |
collection | PubMed |
description | OBJECTIVE: The present study aimed to assess the morphology of symphysis and alveolar bone thickness (ABT) surrounding mandibular incisors in thalassemic patients, as compared to unaffected individuals. METHODS: This case-control study was conducted on lateral cephalograms of 60 thalassemic and 60 unaffected patients with Class II malocclusion seeking orthodontic treatment at Dental School, Shiraz University of Medical Sciences. The sample was divided into three subgroups including hyperdivergent, normodivergent, and hypodivergent, according to the Jarabak index. Symphysis dimensions and alveolar bone thickness surrounding mandibular incisors were measured using AutoCad software. Finally, the correlation between alveolar bone thickness and symphysis morphology was assessed. RESULTS: In general, chin dimensions and bone thickness at different levels of mandibular incisor roots (cervical, middle, apical) were smaller in thalassemic adolescents than controls. Concerning the total sample as well as the normodivergent subgroup, significantly lower values were observed in thalassemic patients for symphysis width, total ABT at the cervical, and lingual ABT at the apical root area compared to controls (p < 0.05). The hypodivergent growth pattern was not associated with any statistical differences between the groups (p> 0.05). In both thalassemic and control subjects, symphysis width showed a weak to moderate positive correlation with ABT of lower incisors (p< 0.05), whereas symphysis height showed a moderate positive correlation with cervical ABT in only ß‐thalassemia patients (p< 0.05). CONCLUSIONS: Compared to controls, ß-thalassemia patients showed thinner alveolar bone at different levels of lower incisor roots and smaller symphysis dimensions. There were significant correlations between symphysis dimensions and alveolar bone thickness of mandibular incisors in the sample. |
format | Online Article Text |
id | pubmed-9128807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Dental Press International |
record_format | MEDLINE/PubMed |
spelling | pubmed-91288072022-05-25 Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns KHOJASTEPOUR, Leila NADERI, Atefe AKBARIZADEH, Fatemeh MOVAHHEDIAN, Najmeh AHRARI, Farzaneh Dental Press J Orthod Original Article OBJECTIVE: The present study aimed to assess the morphology of symphysis and alveolar bone thickness (ABT) surrounding mandibular incisors in thalassemic patients, as compared to unaffected individuals. METHODS: This case-control study was conducted on lateral cephalograms of 60 thalassemic and 60 unaffected patients with Class II malocclusion seeking orthodontic treatment at Dental School, Shiraz University of Medical Sciences. The sample was divided into three subgroups including hyperdivergent, normodivergent, and hypodivergent, according to the Jarabak index. Symphysis dimensions and alveolar bone thickness surrounding mandibular incisors were measured using AutoCad software. Finally, the correlation between alveolar bone thickness and symphysis morphology was assessed. RESULTS: In general, chin dimensions and bone thickness at different levels of mandibular incisor roots (cervical, middle, apical) were smaller in thalassemic adolescents than controls. Concerning the total sample as well as the normodivergent subgroup, significantly lower values were observed in thalassemic patients for symphysis width, total ABT at the cervical, and lingual ABT at the apical root area compared to controls (p < 0.05). The hypodivergent growth pattern was not associated with any statistical differences between the groups (p> 0.05). In both thalassemic and control subjects, symphysis width showed a weak to moderate positive correlation with ABT of lower incisors (p< 0.05), whereas symphysis height showed a moderate positive correlation with cervical ABT in only ß‐thalassemia patients (p< 0.05). CONCLUSIONS: Compared to controls, ß-thalassemia patients showed thinner alveolar bone at different levels of lower incisor roots and smaller symphysis dimensions. There were significant correlations between symphysis dimensions and alveolar bone thickness of mandibular incisors in the sample. Dental Press International 2022-05-23 /pmc/articles/PMC9128807/ /pubmed/35613245 http://dx.doi.org/10.1590/2177-6709.27.2.e22205.oar Text en https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License |
spellingShingle | Original Article KHOJASTEPOUR, Leila NADERI, Atefe AKBARIZADEH, Fatemeh MOVAHHEDIAN, Najmeh AHRARI, Farzaneh Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title | Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title_full | Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title_fullStr | Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title_full_unstemmed | Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title_short | Symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
title_sort | symphysis morphology and mandibular alveolar bone thickness in patients with β-thalassemia major and different growth patterns |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9128807/ https://www.ncbi.nlm.nih.gov/pubmed/35613245 http://dx.doi.org/10.1590/2177-6709.27.2.e22205.oar |
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