| dc.creator |
ŞENSOY, Abdullah |
|
| dc.creator |
KAYMAZ, İrfan |
|
| dc.creator |
ERTAŞ, Ümit |
|
| dc.date |
2015-01-04T19:34:01Z |
|
| dc.date.accessioned |
2019-07-09T12:00:33Z |
|
| dc.date.available |
2019-07-09T12:00:33Z |
|
| dc.identifier |
http://dergipark.org.tr/sdufenbed/issue/20805/222234 |
|
| dc.identifier |
10.19113/sdufbed.44530 |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/46797 |
|
| dc.description |
Distraction osteogenesis is a common clinical procedure to correct mandibular retrognathia cases. In spite of consolidated clinical use, lots of questions still remain to be answered concerning distraction osteogenesis. One of them is to determine the best screw configuration providing boneremodelling in a healthy way due to the stabilization of callus. In this study, some suggestions will be presented about the points “what best screw locations are” and “what the optimum screw quantity is”. A three dimensional solid model was obtained by processing patient-specific computed tomography data in DICOM format. Teeth, cortical and trabecular bone segments were modelled separately with the segmentation process. Ramus and corpus segments were separated from each other by virtual surgery and corpus segment was positioned 11 mm forward. The distractors modelled were assembled into the mandible after modelling the callus. The volume meshes created for all the parts were transferred to a finite element software. Finite element analyses were run as bilaterally symmetric which means the same screw configurations were set for both sides of the mandible. The studies carried out in this paper have shown that screws located closer to the osteotomy line provide more stability, and triangular configuration has a better impact on stability than linear configuration. The reference stabilization case was identified as the scenario of using 22 screws in total, including 8 screws in ramus segment and 14 screws in corpus segment. This case was assumed as maximum stabilization case and other analyses were compared with this result. The results of the configuration including triangularly located 3 screws in ramus segment and closely located 2 screws near the osteotomy line in corpus segment have shown similarity with the reference stabilization case. The closest configuration to the reference case has been tried to determine by using as few screws as possible and has been recommended for clinical use |
|
| dc.description |
retrognathia cases. In spite of consolidated clinical use, lots ofquestions still remain to be answered concerning distraction osteogenesis. Oneof them is to determine the best screw configuration providing boneremodellingin a healthy way due to the stabilization of callus. In this study,some suggestions will be presented about the points “what best screw locationsare” and “what the optimum screw quantity is”. A three dimensional solidmodel was obtained by processing patient-specific computed tomography datain DICOM format. Teeth, cortical and trabecular bone segments were modelledseparately with the segmentation process. Ramus and corpus segments wereseparated from each other by virtual surgery and corpus segment waspositioned 11 mm forward. The distractors modelled were assembled into themandible after modelling the callus. The volume meshes created for all the partswere transferred to a finite element software. Finite element analyses were run as bilaterally symmetric which means the same screw configurations were setfor both sides of the mandible. The studies carried out in this paper have shownthat screws located closer to the osteotomy line provide more stability, andtriangular configuration has a better impact on stability than linearconfiguration. The reference stabilization case was identified as the scenario ofusing 22 screws in total, including 8 screws in ramus segment and 14 screws incorpus segment. This case was assumed as maximum stabilization case andother analyses were compared with this result. The results of the configurationincluding triangularly located 3 screws in ramus segment and closely located 2screws near the osteotomy line in corpus segment have shown similarity withthe reference stabilization case. The closest configuration to the reference casehas been tried to determine by using as few screws as possible and has beenrecommended for clinical use. |
|
| dc.format |
application/pdf |
|
| dc.language |
en |
|
| dc.publisher |
Süleyman Demirel University |
|
| dc.publisher |
Süleyman Demirel Üniversitesi |
|
| dc.relation |
http://dergipark.org.tr/download/article-file/194027 |
|
| dc.source |
Volume: 18, Issue: 3
135-146 |
en-US |
| dc.source |
1308-6529 |
|
| dc.title |
Kallus Stabilizasyonu'nda Optimum Vida Konfigürasyonunun Belirlenmesi |
en-US |
| dc.type |
info:eu-repo/semantics/article |
|