The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography
Abstract Background Multiple factors contribute to mandibular incisor crowding. However, the role of wisdom teeth in these irregularities remains a controversial issue among clinicians. Therefore, this study aimed to determine the potential association between mandibular incisor crowding and the pre...
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BMC
2025-03-01
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| Series: | BMC Oral Health |
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| Online Access: | https://doi.org/10.1186/s12903-025-05733-9 |
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| author | Khalid Aldhorae Ramy Ishaq Salah Alhaidary Ashraf Mohammed Alhumaidi Mohammed M. Al Moaleem Ghamdan Al. Harazi Naela Al-Mogahed Hani Homaid Sadam Ahmed Elayah |
| author_facet | Khalid Aldhorae Ramy Ishaq Salah Alhaidary Ashraf Mohammed Alhumaidi Mohammed M. Al Moaleem Ghamdan Al. Harazi Naela Al-Mogahed Hani Homaid Sadam Ahmed Elayah |
| author_sort | Khalid Aldhorae |
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| description | Abstract Background Multiple factors contribute to mandibular incisor crowding. However, the role of wisdom teeth in these irregularities remains a controversial issue among clinicians. Therefore, this study aimed to determine the potential association between mandibular incisor crowding and the presence or absence of lower wisdom teeth using CBCT image analysis. Materials and methods A total of 64 CBCT images of adult patients were recruited. These CBCT images were classified into two groups according to the presence or absence of the lower wisdom teeth on the panoramic view. After the classification, the severity of crowding was calculated by utilizing Little’s irregularity index. Points such as A point, Nasion, and B point (Supramentale) were identified on the software program. The significance level was set at P < 0.05. Results There was no statistically significant correlation (P = 0.780) in the crowding of the mandibular incisor among the groups with the presence or absence of the lower wisdom teeth. Group 1 (with wisdom teeth) was 5.85 ± 4.05 mm, classified as a moderate irregularity; similarly, group 2 (without wisdom teeth) showed moderate irregularity with a mean value of 5.32 ± 3.12 mm. There was an incisor crowding with a severe irregularity in 18 patients (28.1%), a minimal irregularity in 15 patients (23.4%), a moderate irregularity in 14 patients (21.9%), a very severe irregularity in 10 patients (15.6%), and a perfect alignment in 7 patients (10.9%). Conclusions The presence and absence of lower wisdom teeth do not influence the mandibular incisor crowding. |
| format | Article |
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| issn | 1472-6831 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | BMC |
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| series | BMC Oral Health |
| spelling | doaj-art-4da53a55d3694ba883ce2509769fa5ca2025-08-20T01:48:34ZengBMCBMC Oral Health1472-68312025-03-012511910.1186/s12903-025-05733-9The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomographyKhalid Aldhorae0Ramy Ishaq1Salah Alhaidary2Ashraf Mohammed Alhumaidi3Mohammed M. Al Moaleem4Ghamdan Al. Harazi5Naela Al-Mogahed6Hani Homaid7Sadam Ahmed Elayah8Department of Orthodontics, College of Dentistry, Thamar UniversityDepartment of Orthodontics, College of Dentistry, Sana’a UniversityDepartment of Orthodontics, College of Dentistry, Ibn Al-Nafis University for Medical SciencesDepartment of Orthodontics, College of Dentistry, Ibn Al-Nafis University for Medical SciencesDepartment of Prosthetic Dental Science, College of Dentistry, Jazan UniversityDepartment of Orthodontics, College of Dentistry, Sana’a UniversityDepartment of Orthodontics, College of Dentistry, Sana’a UniversityDepartment of Orthodontics, College of Dentistry, Thamar UniversityDepartment of Oral and Maxillofacial Surgery, College of Dentistry, Ibn Al-Nafis University for Medical SciencesAbstract Background Multiple factors contribute to mandibular incisor crowding. However, the role of wisdom teeth in these irregularities remains a controversial issue among clinicians. Therefore, this study aimed to determine the potential association between mandibular incisor crowding and the presence or absence of lower wisdom teeth using CBCT image analysis. Materials and methods A total of 64 CBCT images of adult patients were recruited. These CBCT images were classified into two groups according to the presence or absence of the lower wisdom teeth on the panoramic view. After the classification, the severity of crowding was calculated by utilizing Little’s irregularity index. Points such as A point, Nasion, and B point (Supramentale) were identified on the software program. The significance level was set at P < 0.05. Results There was no statistically significant correlation (P = 0.780) in the crowding of the mandibular incisor among the groups with the presence or absence of the lower wisdom teeth. Group 1 (with wisdom teeth) was 5.85 ± 4.05 mm, classified as a moderate irregularity; similarly, group 2 (without wisdom teeth) showed moderate irregularity with a mean value of 5.32 ± 3.12 mm. There was an incisor crowding with a severe irregularity in 18 patients (28.1%), a minimal irregularity in 15 patients (23.4%), a moderate irregularity in 14 patients (21.9%), a very severe irregularity in 10 patients (15.6%), and a perfect alignment in 7 patients (10.9%). Conclusions The presence and absence of lower wisdom teeth do not influence the mandibular incisor crowding.https://doi.org/10.1186/s12903-025-05733-9Third molarsWisdom teethMandibular incisor crowdingCBCT |
| spellingShingle | Khalid Aldhorae Ramy Ishaq Salah Alhaidary Ashraf Mohammed Alhumaidi Mohammed M. Al Moaleem Ghamdan Al. Harazi Naela Al-Mogahed Hani Homaid Sadam Ahmed Elayah The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography BMC Oral Health Third molars Wisdom teeth Mandibular incisor crowding CBCT |
| title | The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography |
| title_full | The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography |
| title_fullStr | The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography |
| title_full_unstemmed | The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography |
| title_short | The association of third molars with mandibular incisor crowding in a group of the Yemeni population in Sana’a city: cone-beam computed tomography |
| title_sort | association of third molars with mandibular incisor crowding in a group of the yemeni population in sana a city cone beam computed tomography |
| topic | Third molars Wisdom teeth Mandibular incisor crowding CBCT |
| url | https://doi.org/10.1186/s12903-025-05733-9 |
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