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Evaluation of stress patterns generated by reduction forceps within a photoelastic mandibular model
Byung-Ho Choi1, Jin-Hyoung Park, Tae-Min Yoo
1Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University (Brain Korea 21 Project for Medical Science), South Korea. choibh@wonju.yonsei.ac.kr
Summary
Proper placement of fracture reduction forceps is crucial for optimal mandibular fracture repair. This study found specific distances and levels for forceps engagement to ensure precise stress distribution and accurate bone reduction.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomechanics
- Dental Materials
Background:
- Mechanical effects of fracture reduction forceps are understudied.
- Understanding stress patterns is vital for effective mandibular fracture management.
Purpose of the Study:
- To evaluate stress patterns in fractured mandibles using reduction forceps.
- To determine optimal forceps placement for precise mandibular fracture reduction.
Main Methods:
- Fabrication of 36 photoelastic resin mandibular models.
- Simulating three distinct mandibular fracture types.
- Utilizing photoelastic stress analysis to visualize stress distribution.
Main Results:
- Optimal stress distribution for symphyseal/parasymphyseal fractures achieved with forceps >12mm from fracture line, midway to 5mm below.
- Optimal stress distribution for body fractures achieved with forceps >16mm from fracture line at midway level.
Conclusions:
- Correct reduction forceps application is key for precise 3D reduction of mandibular fractures.
- Placement guidelines derived can enhance surgical outcomes in mandibular fracture repair.