In Vitro Mechanical Analysis of Different Techniques of Internal Fixation of Combined Mandibular Angle and Body Fractures

Medeiros, Raquel Correia de; Sigua, Eder Alberto; Navarro, Pablo; Olate, Sérgio; Barbosa, J.R. Albergaria

doi:10.1016/j.joms.2015.11.009

Cited by 13 publications

(6 citation statements)

References 30 publications

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“…de Olivera et al [21] had evaluated the biomechanical resistance of three different stable internal fixation techniques for fixation of sagittal split osteotomies in sheep mandibles using the universal testing machine. Medeiros et al [22] also reported an in vitro study using polyurethane mandibles to evaluate the mechanical resistance of bilateral mandibular angle and body fractures by different plating systems using a universal testing machine.…”

Section: Discussionmentioning

confidence: 99%

Comparison and evaluation of biomechanical stability of customized plate over monocortical screws, bicortical screws and 3d plate in mandibular fractures – An in-vitro study

R¹,

Mugundan²,

Neelakandan³

2021

GJDS

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Objective: To compare and evaluate the biomechanical stability of a customized plate over miniplate with monocortical screws, miniplate with bicortical screws, and 3D plates across the simulated fractured fragments. Materials and Methods: This in-vitro study involves the use of 40 swine Hemi mandibles with 10 in each group. The specimens were divided into four groups. Group I: Fixation with four holed 2mm mini plates with gap and 4 monocortical screws 2x10 mm, Group II: Fixation with four holed 2mm mini plates with gap and 4 bicortical screws of dimension 2x16 mm, Group III: Fixation with 3D plate, Group IV: Fixation with the customized plate fixed with monocortical screws (2 x 10mm) at tension zone and bicortical screws (1.5 x 16mm) at the compression zone. All plates and screws used were made of stainless steel. The Instron universal Testing System is used for analyzing the test material. The maximum resistance load of these fixations was recorded. Results: Group II showed more mechanical resistance than all other groups which is statistically significant (P-value <0.05). Group IV (customized plates) showed equivalent mechanical resistance to group III. Conclusion:The customized plate has good biomechanical strength comparable to a 3D, it can be of great advantage especially with comminuted fractures.

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Section: Discussionmentioning

confidence: 99%

Comparison and evaluation of biomechanical stability of customized plate over monocortical screws, bicortical screws and 3d plate in mandibular fractures – An in-vitro study

R¹,

Mugundan²,

Neelakandan³

2021

GJDS

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“…Other limiting factors that may influence the results of this review are the size of the plates and the size of the screws used in each type of fracture. 35 Since there was some standardization during data collection for the bite force variable in the studies included in this meta-analysis, the high heterogeneity present in this review can be attributed to the variability of osteosynthesis techniques due to the peculiarity of each type of mandibular fracture treated.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Bite Force with Locking Plates versus Non-Locking Plates in the Treatment of Mandibular Fractures: A Meta-Analysis

Glória

Fernandes

Silveira

et al. 2017

Int Arch Otorhinolaryngol

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Introduction Mandibular fractures represent a high percentage of all facial fractures, and the bite force is a fundamental parameter to measure the actual mandibular function and, subsequently, the masticatory efficiency and quality of life. Objectives The purpose of the present systematic review was to verify if there is any difference in the bite forces of patients with mandibular fractures fixed by locking or non-locking plates, testing the null hypothesis of no difference in this parameter. Data Synthesis A systematic review of the literature was conducted using four databases (PubMed, Virtual Health Library, Web of Science and Science Direct) without restrictions as to publication date or language. We found 3,039 abstracts, and selected 4 articles for this review. Conclusion The overall results show better performance in bite force for the locking plates when compared with the non-locking plates in the incisor region (mean deviation [MD]: 1.18; 95% confidence interval [95%CI]: 0.13–2.23), right molar region (MD: 4.71; 95%CI: 0.63–8.79) and left molar region (MD: 10.34; 95%CI: 4.55–16.13). Although the results of this study indicated a better bite force result with the locking plates, there is still no sufficient evidence to support this information safely.

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“…Bovine bone, synthetic polyurethane mandibles, and red oak are the materials of choice to mimic the behavior of cadaveric bone. [ 5 ]…”

Section: Inroductionmentioning

confidence: 99%

Biomechanical evaluation of different fixation techniques following modified sagittal split ramus osteotomy using buccal step

Warade

Kshirsagar

Mishra

et al. 2022

National Journal of Maxillofacial Surgery

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Objective: This study was to evaluate the efficacy of three different designs of rigid fixation using polyurethane hemimandible replicas following modified sagittal split ramus osteotomy with buccal step. Materials and Methods: Forty-eight polyurethane hemimandible replicas have been used. Following the osteotomy and fixation, each specimen has been mounted on a Universal Testing unit using a prefabricated customized jig and has been tested to a range of vertical forces starting from 0 N on the incisal edge of lateral incisor and lateral forces of on lateral surface of mandibular first molar. Progressive load has been applied until a deflection of 10 mm was observed. SPSS version 20 has been used for analyzing the data. The biomechanical stability of different osteosynthesis has been compared using a one-way ANOVA with post hoc Bonferroni test. P ≤ 0.05 will be considered statistically significant. Results: After advancement of 7 mm, comparison of vertical load and lateral load among different miniplate systems showed that load was maximum in bicortical screws in inverted L pattern followed by T-shaped miniplate system and was least in single six-hole straight plate (0.001) at P ≤ 0.05. Conclusion: Our study concludes that bicortical screws in inverted “L” pattern are more resistant to lateral load as well as on the application of vertical load when compared to other fixation techniques and statistical difference was evident.

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In Vitro Mechanical Analysis of Different Techniques of Internal Fixation of Combined Mandibular Angle and Body Fractures

Cited by 13 publications

References 30 publications

Comparison and evaluation of biomechanical stability of customized plate over monocortical screws, bicortical screws and 3d plate in mandibular fractures – An in-vitro study

Comparison and evaluation of biomechanical stability of customized plate over monocortical screws, bicortical screws and 3d plate in mandibular fractures – An in-vitro study

Comparison of Bite Force with Locking Plates versus Non-Locking Plates in the Treatment of Mandibular Fractures: A Meta-Analysis

Biomechanical evaluation of different fixation techniques following modified sagittal split ramus osteotomy using buccal step

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