Comparative study of biomechanical stability of resorbable and titanium fixation systems after sagittal split ramus osteotomy with a novel designed in-vitro testing unit

Ulu, Murat; Soylu, Emrah; Kelebek, Seyfi; Dikici, Serkan; Oflaz, Hakan

doi:10.1016/j.jcms.2017.11.024

Cited by 10 publications

(19 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…To overcome this problem, a sixpoint biomechanical test unit was presented. 23 Cilasun et al suggested adding a piece to set-up to allow the rotation of the condylar segment in a transverse plane. However, lateral movements could not be displayed even with this detail.…”

Section: Discussionmentioning

confidence: 99%

Preliminary Investigation of the Biomechanics of Unilateral Chewing Comparing Two Testing Models: In Vitro Study

Demir¹

2022

Turkiye Klinikleri J Dental Sci

View full text Add to dashboard Cite

This article reports a preliminary study undertaken to investigate the biomechanics of unilateral chewing due to lateral segmental defects extending to angulus, introducing modified designs of 3-point and 2 point testing models. Data concerning test setups used in biomechanic studies of mandible in the literature have been analysed. Material and Methods: Load/displacement data were gathered for the mandibles with the same defect and reconstructed with reconstruction plate in a standart way. Standard models underwent unilateral loading with two different test set-up. The first set-up was consistent with 3 point testing model (Group I) while the second set-up was simulating 2 point testing model (Group II). Furthermore, literature related with in vitro studies of mandible were searched and testing setups used in these studies were evaluated. Results: The mean displacement for Group I was 12.11 mm (±3.36), Group II was 19.56 (±0.92) mm. Group II had significantly greater (p=0.000) displacement when compared with Group I. The mean force before failure for Group I was 850.3 N (±136.1 N), Group II was 1117.83 N (±107.3 N). Models tested with two point system failed at significantly greater force (p=0.000), Conclusion: Three point testing model was more efficient and reflecting the chewing forces better under unilateral loading. Many biomechanic studies in the literature adopted three point system for their studies.

show abstract

Section: Discussionmentioning

confidence: 99%

Preliminary Investigation of the Biomechanics of Unilateral Chewing Comparing Two Testing Models: In Vitro Study

Demir¹

2022

Turkiye Klinikleri J Dental Sci

View full text Add to dashboard Cite

show abstract

“…Among the osteosynthesis methods used in BSSO, the use of bicortical screws and miniplates has been documented in clinical and laboratory studies with reliable results. [12][13][14] In 2010, Rieberio-Junior et al found higher strength with regard to displacement in hybrid system groups using a locked or conventional miniplate with a bicortical screw. 15 In a similar study, the stability of a 6 fixation system was evaluated, and it was found that the hybrid system (1 mini-plate+1 bicortical screw) that we used for fixation of the mandibular segments, showed the highest stability.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Postoperative Accuracy and Relapse Extent in Orthognathic Surgery Patients: A Case Control Study

KARA¹,

AKBULUT²,

AKBULUT³

et al. 2022

Turkiye Klinikleri J Dental Sci

View full text Add to dashboard Cite

show abstract

“…Other biomechanical studies have used whole polyurethane mandibular replicas, in which more complex biomechanical models were used in mimicking masticatory function. 4,12,16 Although the strive for closer proximity to human anatomy in these models could be encouraged, the results of all biomechanical studies cannot directly be extrapolated to clinical circumstances. As of a financial perspective, the costs for materials in biomechanical research with complete mandibles would be doubled with the same number of samples.…”

Section: Discussionmentioning

confidence: 99%

“…5,8 The rigidity of fixation methods has also been investigated in a number of biomechanical evaluation studies. [9][10][11][12] Regarding mandibular advancements up to 10 mm, the use of 3 titanium bicortical screws placed in an inverted-L pattern has presented the most stability. 4,13,14 However, in the case of extremely large advancements (i.e.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Evaluation of a New Fixation Method for Stabilization of Sagittal Split Ramus Osteotomy After Mandibular Advancement

Kuik

Klop

et al. 2021

Craniomaxillofacial Trauma & Reconstruction Open

View full text Add to dashboard Cite

Study Design: Biomechanical in vitro study. Mandibular advancement after sagittal split ramus osteotomy (SSRO) is a common procedure in orthognathic surgery. Several fixation methods are used for stabilization of SSRO. Objective: The aim of this study was to compare a new fixation method (gridplate) with more contemporary applied methods of fixation. Material and Methods: In this study, 50 polyurethane hemimandibles with a prefabricated SSRO were used as specimens. All hemimandibles were advanced by 8 mm and divided into 5 groups with different fixation methods: (A) one 4-hole miniplate with 4 monocortical screws; (B) two 4-hole miniplates with 8 monocortical screws; (C) one 4-hole miniplate with 4 monocortical screws and 1 bicortical screw in the retromolar area (hybrid method); (D) 3 bicortical screws in an inverted-L pattern; and (E) one 8-hole gridplate with 8 monocortical screws. Loads in newtons were recorded at displacements of the mandibular incisive edge at 1 mm, 3 mm and 5 mm. Results: Fixation with 3 bicortical screws and the gridplate presented the most stability, followed by two 4-hole miniplates. Fixation with the hybrid method or the single miniplate showed the least stability. Conclusion: According to the results of this study, the 8-hole gridplate design appears a sufficient fixation method regarding stabilization of SSRO with larger mandibular advancement.

show abstract

Comparative study of biomechanical stability of resorbable and titanium fixation systems after sagittal split ramus osteotomy with a novel designed in-vitro testing unit

Cited by 10 publications

References 30 publications

Preliminary Investigation of the Biomechanics of Unilateral Chewing Comparing Two Testing Models: In Vitro Study

Preliminary Investigation of the Biomechanics of Unilateral Chewing Comparing Two Testing Models: In Vitro Study

Evaluation of Postoperative Accuracy and Relapse Extent in Orthognathic Surgery Patients: A Case Control Study

Biomechanical Evaluation of a New Fixation Method for Stabilization of Sagittal Split Ramus Osteotomy After Mandibular Advancement

Contact Info

Product

Resources

About