پیوندهای مفید
آمار
| تعداد نشریات | 20 |
| تعداد شماره‌ها | 1,149 |
| تعداد مقالات | 10,518 |
| تعداد مشاهده مقاله | 45,415,424 |
| تعداد دریافت فایل اصل مقاله | 11,291,214 |
Evaluation of the Effect of Anterior Teeth Torque Values on the Space Occupied by Six Anterior Teeth: a Finite Element Analysis | ||
| Journal of Dentistry | ||
| مقاله 6، دوره 23، Supplement-June-2022 - شماره پیاپی 76، 2022، صفحه 198-207 اصل مقاله (1.06 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.30476/dentjods.2021.88649.1346 | ||
| نویسندگان | ||
| Hosniye Zia Edini* 1؛ Bahare Fatemipour2؛ Mohammad Mousavi3؛ Hossein Darijani4؛ Mohsen Moeini5؛ Amin Dehghan6 | ||
| 1Dept. of Orthodontics, Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran. | ||
| 2Dept. of Orthodontics, Zahedan University of Medical Sciences, Zahedan, Iran. | ||
| 3Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran. | ||
| 4Dept. of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran. | ||
| 5Student of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran. | ||
| 6Student of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran. | ||
| چکیده | ||
| Statement of the Problem: Various factors have been introduced to achieve normal occlusion. One of them is anterior teeth torque that has a significant effect on orthodontic treatment outcomes. Purpose: The aim of this study was to investigate the effect of changes in anterior teeth torque on changes in the space occupied by six anterior teeth by using computer-aided three-dimensional interactive application (CATIA). Materials and Method: In this experimental finite element study, acrylic teeth with pre-adjusted MBT braces were aligned and three-dimensional (3D) scans were made by 3Dscaner. In the CATIA software program, upper incisors’ torque was changed to -2, -4, -6, +2, +4 and+6 degrees and in the lower incisors to -1, - 3, -5, +3 and+5 degrees; the space was measured at 3 heights of maxillary incisor crowns and at incisal edges of mandibular incisors. Then maxillary incisors were then tapered and the measurements were made again. To evaluate the effect of tooth size, these procedures were carried out on teeth with +17% and -17% magnifications Results: The results showed that by increasing anterior torque from 14.7 to 20.7 degrees in maxillary incisors, the space occupied by anterior teeth increased. Maximum changes were at cingulum height with 1.421mm. Reduction in anterior torque from 14.7 to 8.7 degrees resulted in a decrease in this space and maximum changes were observed in the cingulum height with 1.824mm. In the mandibular arch, a 10-degree change in anterior torque resulted in an -.752mm change in the space. Changes in the space occupied by anterior teeth was not significant in tapered and normal teeth in +6 and -6-degree torque (p Value= 0.78 and p Value=0.83). Conclusion: By increasing or decreasing the incisors’ torque, the space occupied by anterior teeth increased and decreased, respectively. These changes were less in tapered teeth. Size variations had no significant effect on the results. | ||
| کلیدواژه‌ها | ||
| Torque؛ Orthodontic Space Closures؛ Finite Element Analyses | ||
|
سایر فایل های مرتبط با مقاله
|
||
| مراجع | ||
| ||
|
آمار تعداد مشاهده مقاله: 2,374 تعداد دریافت فایل اصل مقاله: 1,854 |
||
