Biomechanical evaluation of hybrid fixation method of sagittal split ramus osteotomy in mandibular advancement

Gürsoytrak, Burcu; Demetoğlu, Umut; Şimşek, Hasan; Sağlam, Hilal; Dolanmaz, Doğan

doi:10.1016/j.jcms.2018.05.005

Cited by 6 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…24 In biomechanical studies, loads were generated in vertical direction in both 2 point and 3 point systems. 25,26 Futhermore, studies investigating biome-chanical behaviour of test materials on lateral segmental defects of mandible applied vertical forces to models. Although 30-70% load distrubution for resected-unresected side were used by researchers, load characteristic was again vertical.…”

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

Section: Discussionmentioning

confidence: 99%

“…Sliding plates have already been widely studied in the field of mandibular orthognathic surgery [5,6,[25][26][27][28][29]. Gursoytrak et al [25] reported more relapse with the use of sliding plates compared to that with four-hole plates in an animal experiment study. Other clinical studies conducted by Kim et al and us [26,27] showed no significant differences in the relapse of proximal segments between the sliding plate and four-hole plate groups in orthognathic surgery.…”

Section: Discussionmentioning

confidence: 99%

Semi-Rigid Fixation Using a Sliding Plate for Treating Fractures of the Mandibular Condylar Process

Kim

et al. 2021

JCM

View full text Add to dashboard Cite

Occlusal displacement often occurs after surgery for condylar process fractures because it is difficult to reduce these fractures precisely. However, performing semi-rigid fixation using a sliding plate may overcome this limitation. A retrospective clinical comparison between semi-rigid and rigid fixations was performed. Among 34 patients who had unilateral condylar process fractures, 17 were treated with rigid fixation and the remaining with semi-rigid fixation using a sliding plate. For all patients, panoramic radiographs were collected 1 day and 6 months after surgery. In these radiographs, ramus height and condylar process inclination were measured, and the differences between the fractured and normal sides were assessed. Additionally, the radiographic density of the fracture area was measured. Differences in surgical outcomes and operative times between the two groups and changes in postoperative deviations within each group were analyzed. There was no statistically significant difference in ramus height and condylar process inclination between the two groups at postoperative day 1 and 6 months. Radio-density was observed to be higher in the rigid fixation group, and it increased with time in both groups. The semi-rigid fixation group had a significantly shorter operative time than the other group did. Semi-rigid and rigid fixations showed no differences in terms of effectiveness and outcomes of surgery. In terms of operative time, semi-rigid fixation was superior to rigid fixation.

show abstract

“…De maneira geral, miniplacas, parafusos bicorticais, ou a combinação de ambos, conhecido como técnica híbrida, são as técnicas de fixação interna rígida mais utilizadas. Cada técnica de fixação tem seus defensores, e sua aplicação depende mais da experiência ou preferência profissional, pois não há um consenso de qual técnica é a melhor (5,40,51).…”

Section: Fixação Interna Rígidaunclassified

“…Foram avaliados oito sistemas de fixação: uma placa com quatro parafusos monocorticais, uma placa com quatro parafusos monocorticais associados a um parafuso bicortical posicional (sistema híbrido), uma placa com quatro parafusos monocorticais de sistema locking, uma placa com quatro parafusos monocorticais de sistema locking associados a um parafuso bicortical (sistema híbrido), uma placa com seis parafusos monocorticais, uma placa com seis parafusos monocorticais associados a um parafuso bicortical posicional (sistema híbrido), uma placa grade com parafusos monocorticais, uma placa grade com parafusos monocorticais associados a um parafuso bicortical posicional (sistema híbrido). Após testes de carga, os autores concluíram que todos os grupos de fixação híbrida obtiveram melhores resultados no teste e que a adição do parafuso bicortical posicional aumentou a resistência da placa e da fixação (51).…”

Section: Fixação Híbridaunclassified

Estabilidade pós-operatória do método híbrido de fixação interna rígida da osteotomia sagital do ramo mandibular em cirurgias ortognáticas: uma revisão sistemática

Moreira

View full text Add to dashboard Cite

Primeiramente gostaria de agradecer a minha maior incentivadora durante a realização deste trabalho, minha esposa Patricia. Obrigado pela parceria, pela paciência, pelo constante incentivo em busca de novos conhecimentos, por sonhar esse sonho ao meu lado e por estar comigo durante a realização deste trabalho.Á minha família, minha mãe Rosane e minha irmã Sabrina, pelo apoio em todas as etapas de minha formação profissional, por sempre acreditarem em mim e ajudarem nas realizações dos meus sonhos. À Profa. Dra. Maria da Graça Naclério-Homem por ter me orientado durante à realização deste trabalho, por ter me recebido tão bem no departamento e pelos ensinamentos, por ela compartilhados, durante os dois anos do mestrado.Ao Prof. Dr. Fernando Melhem Elias por ter me coorientado durante todo o processo de desenvolvimento deste trabalho e pelo aprendizado durante o processo de acompanhamento clínico aos alunos da graduação.

show abstract

Biomechanical evaluation of hybrid fixation method of sagittal split ramus osteotomy in mandibular advancement

Cited by 6 publications

References 28 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

Semi-Rigid Fixation Using a Sliding Plate for Treating Fractures of the Mandibular Condylar Process

Estabilidade pós-operatória do método híbrido de fixação interna rígida da osteotomia sagital do ramo mandibular em cirurgias ortognáticas: uma revisão sistemática

Contact Info

Product

Resources

About