Background: Fractures of anterior mandible (symphysis and parasymphysis) make up about 9% to 57%, of mandibular fractures, and body fractures make up about 21%; posing challenges for stabilization due to anatomical constraints. Traditional 3D plates have limitations in this area, leading to the development of Modified 3D Rectangular Grid plates. Studies have shown that these plates offer superior stabilization over larger configurations while maintaining a low profile like miniplates. Additionally, design modifications ensure mental nerve preservation, balancing effective fixation with neurovascular safety. Aim of this study: To evaluate the use of Modified 3D Rectangular Grid plates in comparison with conventional mini plates for fixation of mandibular fracture in the anterior and body regions, clinically regarding pain, interfragmentary mobility, maximal inter-incisal opening, wound healing, and sensory nerve evaluation, and radiographically regrading fracture reduction.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
22
The system consists of a lower 1.5-mm rectangular plate and an upper linear plate that interlock through circular recesses and elevations. Each component is 0.75 mm thick at the junction, giving a total thickness of 1.5 mm. After screw fixation, it provides 3D stability similar to standard 3D plates while minimizing risk to the mental nerve.
conventional mini plates for fixation of mandibular fracture in the anterior and body regions
Outpatient Clinic of Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Egypt
Alexandria, Azarita, Egypt
change in maximum mouth opening
Using a millimetre ruler to measure maximal inter-incisal mouth opening; considered to be adequate if \>30 mm and inadequate if \<30 mm
Time frame: up to 6 weeks
change in pain scores
Will be assessed through a 10-point Visual Analogue Scale (VAS). (0-1= None, 2-4= Mild, 5-7= Moderate, 8-10= Severe
Time frame: up to 6 weeks
change in Inter-fragmentary Mobility
The mobility will be assessed by bi-manual palpation across the fracture site.
Time frame: up to 6 weeks
change in Wound Evaluation
The sutured wounds will be examined for signs and symptoms of infection uisng modified Landry's index
Time frame: up to 6 weeks
adequacy of fracture line reduction
Whenever alignment of the inferior border of the mandible will be maintained across the fracture line, it will be considered an excellent reduction. If a discrepancy of 1-3 mm will be noted, it will be considered a good reduction. If a discrepancy of 3-5 mm will be noted, it will be labeled as a fair reduction. If the discrepancy will be \> 5 mm, it will be considered a poor reduction.
Time frame: 6 weeks
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