Investigation of the biomechanical stability of Cfr-PEEK in the treatment of mandibular angulus fractures by finite element analysis

Avci, Tolunay; Ömezli, Mehmet Melih; Torul, Damla

doi:10.1016/j.jormas.2022.05.008

Cited by 6 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PSIs can be complex three-dimensional structures such as orbital walls and parts of the maxilla [ 12 ] or saw-and-drill guides and plates [ 13 ]. They are mostly made of titanium but can be made from other materials such as PMMA, composites, or most recently, carbon-fiber-reinforced PEEK [ 14 ], which has been successfully used in the reconstruction of the skull and the facial skeleton. In this study, we only used patient-specific saw-and-drill guides and titanium plates.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of Segmented Le Fort I Osteotomy with Virtual Planning in Orthognathic Surgery Using Patient-Specific Implants: A Case Series

Rios

Lerhe

Chamorey

et al. 2022

JCM

View full text Add to dashboard Cite

Background: When maxillary transversal expansion is needed, two protocols of treatment can be used: a maxillary orthodontic expansion followed by a classical bimaxillary osteotomy or a bimaxillary osteotomy with maxillary segmentation. The aim of this study was to assess the accuracy of segmented Le Fort I osteotomy using computer-aided orthognathic surgery and patient-specific titanium plates in patients who underwent a bimaxillary osteotomy for occlusal trouble with maxillary transversal insufficiencies. Methods: A virtual simulation of a Le Fort I osteotomy with maxillary segmentation, a sagittal split ramus osteotomy, and genioplasty (if needed) was conducted on a preoperative three-dimensional (3D) model of each patient’s skull using ProPlan CMF 3.0 software (Materialise, Leuven, Belgium). Computer-assisted osteotomy saw-and-drill guides and patient-specific implants (PSIs, titanium plates) were produced and used during the surgery. We chose to focus on the maxillary repositioning accuracy by comparing the preoperative virtual surgical planning and the postoperative 3D outcome skulls using surface superimpositions and 13 standard dental and bone landmarks. Errors between these preoperative and postoperative landmarks were calculated and compared to discover if segmental maxillary repositioning using PSIs was accurate enough to be safely used to treat transversal insufficiencies. Results: A total of 22 consecutive patients—15 females and 7 males, with a mean age of 27.4 years—who underwent bimaxillary computer-assisted orthognathic surgery with maxillary segmentation were enrolled in the study. All patients presented with occlusion trouble, 13 with Class III malocclusions (59%) and 9 (41%) with Class II malocclusions. A quantitative analysis revealed that, overall, the mean absolute discrepancies for the x-axis (transversal dimension), y-axis (anterior–posterior dimensions), and z-axis (vertical dimension) were 0.59 mm, 0.74 mm, and 0.56 mm, respectively. The total error rate of maxillary repositioning was 0.62 mm between the postoperative cone-beam computed tomography (CBCT) and the preoperatively planned 3D skull. According to the literature, precision in maxilla repositioning is defined by an error rate (clinically relevant) at each landmark of <2 mm and a total error of <2 mm for each patient. Conclusions: A high degree of accuracy between the virtual plan and the postoperative result was observed.

show abstract

Section: Introductionmentioning

confidence: 99%

Accuracy of Segmented Le Fort I Osteotomy with Virtual Planning in Orthognathic Surgery Using Patient-Specific Implants: A Case Series

Rios

Lerhe

Chamorey

et al. 2022

JCM

View full text Add to dashboard Cite

show abstract

“…Steffen et al [ 124 ] found that PEEK plates did not seem to guarantee the displacement and mechanical integrity of mandibular reconstruction compared to miniature titanium plates. However, Avci et al [ 125 ] concluded that the CF/PEEK plate/screw system reduces the stress on the fixation system and provides more stable fixation than the resorbable system. The 2 mm thick CF/PEEK plate seems to be a potential replacement for the 1 mm thick titanium plate when fixing dislocated mandibular fractures.…”

Section: Mechanical Properties Of Peek In Dental Applicationsmentioning

confidence: 99%

PEEK for Oral Applications: Recent Advances in Mechanical and Adhesive Properties

et al. 2023

View full text Add to dashboard Cite

Polyetheretherketone (PEEK) is a thermoplastic material widely used in engineering applications due to its good biomechanical properties and high temperature stability. Compared to traditional metal and ceramic dental materials, PEEK dental implants exhibit less stress shielding, thus better matching the mechanical properties of bone. As a promising medical material, PEEK can be used as implant abutments, removable and fixed prostheses, and maxillofacial prostheses. It can be blended with materials such as fibers and ceramics to improve its mechanical strength for better clinical dental applications. Compared to conventional pressed and CAD/CAM milling fabrication, 3D-printed PEEK exhibits excellent flexural and tensile strength and parameters such as printing temperature and speed can affect its mechanical properties. However, the bioinert nature of PEEK can make adhesive bonding difficult. The bond strength can be improved by roughening or introducing functional groups on the PEEK surface by sandblasting, acid etching, plasma treatment, laser treatment, and adhesive systems. This paper provides a comprehensive overview of the research progress on the mechanical properties of PEEK for dental applications in the context of specific applications, composites, and their preparation processes. In addition, the research on the adhesive properties of PEEK over the past few years is highlighted. Thus, this review aims to build a conceptual and practical toolkit for the study of the mechanical and adhesive properties of PEEK materials. More importantly, it provides a rationale and a general new basis for the application of PEEK in the dental field.

show abstract

“…4,14,15 Bununla birlikte özellikle SEA yöntemi ile gerçekleştirilen çalışmalarla bu fiksasyon sistemlerinin etkinliği incelenmeye devam etmektedir. 16,17,26 Mandibula angulus kırıklarının Champy'nin tanımladığı olarak bilinen eksternal oblik çizgi boyunca uygulanan tek plakla tedavisi birçok çalışmada başarılı bir şekilde uygulanmıştır. 17 Ancak Kroon ve ark.…”

Section: Bulgularunclassified

“…14,15 Bununla birlikte sonlu elemanlar analiz (SEA) yöntemi yapılan birçok güncel çalışma ile materyal araştırma konusu olmaktadır. 16,17 Bu çalışmanın amacı, mandibular angulusun "favorable" kırıklarında (masseter ve medial pterygoid kasların hareketinin kırık segmentlerin birbirine yaklaşmaya yardımcı olduğu kırıklar), CFR-PEEK ve titanyumdan yapılan fiksasyon sisteminin biyomekanik stabilitesinin SEA ile karşılaştırılmasıdır.…”

unclassified

Evaluation of Carbon Fiber Reinforced Polyetheretherketone Polymer in Favorable Mandibular Angulus Fractures with Finite Element Analysis Method: Experimental Study

BAŞ,

HARTOMACIOĞLU,

ERDEM

et al. 2023

Turkiye Klinikleri J Dental Sci

View full text Add to dashboard Cite

Bu çalışmanın amacı, favorable mandibula angulus kırıklarının, karbon fiberle güçlendirilmiş polietereterketon [carbon fiber reinforced polyetheretherketone (CFR-PEEK)] ve titanyumdan yapılmış fiksasyon sistemlerinin sonlu elemanlar analiz yöntemi ile karşılaştırılmasıdır. Gereç ve Yöntemler: Mandibula modellerinde, dijital ortamda favorable bir kırık hattı oluşturulmuştur. Bu modellerdeki kırık hatlarının fiksasyonunda 4 delikli, 1,0 mm profil kalınlığında barlı mini plaklar ve 5 mm uzunluğunda titanyum vidalar kullanılmıştır. İncelenen mini plaklar, titanyum ve CFR-PEEK materyalinden üretilmiştir. Plaklar 3 farklı pozisyona yerleştirilmiştir (Pozisyon X: inferiordan tek mini plak, Pozisyon Y: çift mini plak, Pozisyon Z: superiordan tek mini plak). Kesici diş ve molar diş bölgelerinden dikey yönde ayrı ayrı 200 N ısırma kuvvetleri uygulanmıştır. Titanyum ve CFR-PEEK mini plaklarından oluşan fiksasyon sistemleri karşılaştırılmıştır. Bulgular: Titanyum ve CFR-PEEK mini plak sistemlerinin tamamı 200N kesici ve molar bölge yüklemelerine karşı dayanım sağlayabildikleri görülmüştür. Her 3 pozisyonda da (pozisyon X: inferiordan tek mini plak, pozisyon Y: çift mini plak, pozisyon Z: superiordan tek mini plak), CFR-PEEK mini plak sistemlerinde plağa iletilen von Misses streslerinin daha az olduğu görülürken, titanyumdan yapılan mini plaklarda total deformasyon miktarı ve çeneye iletilen stresin daha düşük olduğu ölçülmüştür. Sonuç: Favorable mandibula angulus kırıklarında, plak sistemlerine iletilen von Misses stresleri azaldığı için CFR-PEEK plakların titanyum mini plaklara göre avantajlı olduğu görülmüştür. Total deformasyon miktarı ve kemiğe iletilen streslerde ise titanyum daha düşük değerler göstermiştir. Bu da titanyumun daha rijit bir fiksasyon materyali olduğunu göstermektedir. Anah tar Ke li me ler: Fiksasyon; karbon fiberle güçlendirilmiş polietereterketon; titanyum; sonlu elemanlar analizi ABS TRACT Objective: The aim of this study is to compare favorable mandibular angulus fractures with carbon fiber reinforced polyetheretherketone (CFR-PEEK) and titanium fixation systems by finite element analysis method. Material and Methods: In the mandible models, a favorable fracture line has been created in the digital environment. In the fixation of fracture lines in these models, 4hole, 1.0 mm profile thickness bar miniplates and 5 mm long titanium screws were used. The examined miniplates are made of titanium and CFR-PEEK material. The plaques are placed in three different positions (position X: single miniplate from inferior, position Y: double miniplate, position Z: single miniplate from superior). 200 N biting forces were applied separately in vertical direction from the incisor and molar tooth regions. Fixation systems consisting of titanium and CFR-PEEK miniplates have been compared. Results: It has been found that titanium and CFR-PEEK miniplate systems can provide resistance against all 200 N incisor and molar zone loads. In all 3 positions (position X: single miniplate from inferior, position Y: double minipl...

show abstract

Investigation of the biomechanical stability of Cfr-PEEK in the treatment of mandibular angulus fractures by finite element analysis

Cited by 6 publications

References 26 publications

Accuracy of Segmented Le Fort I Osteotomy with Virtual Planning in Orthognathic Surgery Using Patient-Specific Implants: A Case Series

Accuracy of Segmented Le Fort I Osteotomy with Virtual Planning in Orthognathic Surgery Using Patient-Specific Implants: A Case Series

PEEK for Oral Applications: Recent Advances in Mechanical and Adhesive Properties

Evaluation of Carbon Fiber Reinforced Polyetheretherketone Polymer in Favorable Mandibular Angulus Fractures with Finite Element Analysis Method: Experimental Study

Contact Info

Product

Resources

About