Histological evaluation of three-dimensional rectangular grid plates in treatment of mandibular fractures: an experimental study.
- 1Faculty of Dentistry, Suez Canal University, Ismailia, Ismailia, Egypt. [email protected].
- 2Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt.
- 3Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Abstract
Aim of the work
Evaluate the efficacy of 3D rectangular grid plates in treatment of mandibular fractures in comparison to the more commonly used locking plates.Subjects and methods
This experimental study was conducted on sixteen mature male Mongrel dogs (ranged from 1-2 years old), weighting about 15-20 kg each. A linear fracture was done using surgical sagittal saw with aid of mallet and chisel in the right side of the mandible in the premolar molar area for each animal of the study under general anesthesia. The animals were divided into two groups: Group A was fixated with 3D rectangular grid plate and six 7 mm monocortical screws and Group B was fixated with two locking plates; the inferior plates fixated with 11 mm bicortical screws and the superior one fixated with 7 mm monocortical screws. The bone formation and remodeling is assessed using histomorphometric analysis of bone biopsy.Results
Group A subjects showed significantly less bone formation than group B (26.78±4.3 vs 48.4±10.3 respectively in postoperative week 4 P<0.005 and 28.119±10.507 vs 51.109±11.348 respectively in postoperative week 12 P<0.005). The surface area of the fracture was also significantly lower in group A than in group B (0.317 ± 0.065 vs 0.485 ± 0.105 respectively in postoperative week 4 P<0.005 and 0.287 ± 0.105 vs 0.511 ± 0.115 respectively in postoperative week 12 P<0.005).Conclusions
Fixation with 3D rectangular grid plates demonstrated a bone healing pattern characterized by closer fracture segment approximation and reduced callus formation, consistent with primary bone healing, as evidenced by histological and histomorphometric analysis, compared with locking plates.
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BibTeX
@article{elbanna2026histological,
title = {{Histological evaluation of three-dimensional rectangular grid plates in treatment of mandibular fractures: an experimental study.}},
author = {Mohamed Mohsen Elbanna and Ibrahim H Ahmed and Mohamed Hassan Eid and Mohamed Elsholkamy and Mohamed Said Hamed},
journal = {BMC oral health},
year = {2026},
month = oct,
doi = {10.1186/s12903-026-09946-4},
url = {https://europepmc.org/article/MED/42892677},
note = {CC BY},
}
RIS
TY - JOUR
TI - Histological evaluation of three-dimensional rectangular grid plates in treatment of mandibular fractures: an experimental study.
AU - Mohamed Mohsen Elbanna
AU - Ibrahim H Ahmed
AU - Mohamed Hassan Eid
AU - Mohamed Elsholkamy
AU - Mohamed Said Hamed
PY - 2026
DA - 2026/10/17
JO - BMC oral health
DO - 10.1186/s12903-026-09946-4
UR - https://europepmc.org/article/MED/42892677
AB - Aim of the work Evaluate the efficacy of 3D rectangular grid plates in treatment of mandibular fractures in comparison to the more commonly used locking plates.Subjects and methods This experimental study was conducted on sixteen mature male Mongrel dogs (ranged from 1-2 years old), weighting about 15-20 kg each. A linear fracture was done using surgical sagittal saw with aid of mallet and chisel in the right side of the mandible in the premolar molar area for each animal of the study under general anesthesia. The animals were divided into two groups: Group A was fixated with 3D rectangular grid plate and six 7 mm monocortical screws and Group B was fixated with two locking plates; the inferior plates fixated with 11 mm bicortical screws and the superior one fixated with 7 mm monocortical screws. The bone formation and remodeling is assessed using histomorphometric analysis of bone biopsy.Results Group A subjects showed significantly less bone formation than group B (26.78±4.3 vs 48.4±10.3 respectively in postoperative week 4 P<0.005 and 28.119±10.507 vs 51.109±11.348 respectively in postoperative week 12 P<0.005). The surface area of the fracture was also significantly lower in group A than in group B (0.317 ± 0.065 vs 0.485 ± 0.105 respectively in postoperative week 4 P<0.005 and 0.287 ± 0.105 vs 0.511 ± 0.115 respectively in postoperative week 12 P<0.005).Conclusions Fixation with 3D rectangular grid plates demonstrated a bone healing pattern characterized by closer fracture segment approximation and reduced callus formation, consistent with primary bone healing, as evidenced by histological and histomorphometric analysis, compared with locking plates.
SN - 1472-6831
ER -