Atrofik mandibulaya yerleştirilen implantların sayı ve lokalizasyonunun simfiz bölgesinin kırılganlığına etkisi
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ege Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Amac?: Atrofik tam dis?siz hastalarda dis?sizlig?i rehabilite etmek amacıyla implant destekli overdenture protezler tercih edilmektedir. Ancak bu implant uygulamalarının zaten atrofi nedeniyle dayanıklılıg?ı azalmıs? olan mandibulanın frontal travmatik kuvvetler kars?ısındaki dayanıklılıg?ını nasıl etkiledig?ine dair detaylı c?alıs?malar bulunmamaktadır. Bu c?alıs?ma ile atrofik tam dis?siz mandibulalarda uygulanan geleneksel tam protez iki implant ve üç implant destekli overdenture protez sistemlerinin mandibulanın frontal travmatik kuvvetere kars?ı dayanıklılıg?ına olan etkilerinin deg?erlendirilmesi amac?lanmaktadır. Materyal ve metod: Bir adet atrofik mandibula bilgisayar ortamında modellendi. Bu modele geleneksel tam protez, iki implant destekli locator atac?manlı overdenture protez, iki implant destekli bar atac?manlı overdenture protez, üç implant uygulanan locater ataçmanlı overdenture protez, üç implant uygulanan bar ataçmanlı overdenture protez bilgisayar ortamında uygulanarak 5 farklı tedavi modeli simüle edildi. Tu?m modellere simfiz bo?lgesinden frontal du?zleme dik bir s?ekilde 1cm c?apında dairesel alandan 2000N kuvvet uygulanarak statik lineer analizler gerc?ekles?tirildi. Analizler sonucunda mandibula u?zerinde olus?an Pmax, Pmin ve von Mises stres deg?erleri elde edildi. Bulgular: Orta hatta 3. İmplantın konulduğu modellerde oluşan stresler mandibulanın dayanıklılık seviyesini aşmıştır. İki implant uygulanan bar atac?manlı overdenture protez uygulanan modellerde en düşük stresler oluşmuştur. Kondil ve angulus bölgesinde oluşan stresler mandibulanın dayanıklılık seviyesinin altında kaldı ve streslerin daha çok simfiz bölgesinde oluştuğu gözlemlendi. Bar ataçman kullanımın stresleri simfizden kondile dağıttığı gözlendi. Sonuc?lar: Tam dis?siz atrofik mandibulaya sahip hastalarda implantların birbirine bag?landıg?ı bar atac?manlı overdenture protez modellerinde mandibulaya frontal travmatik kuvvet uygulandıg?ında o?zellikle de simfiz bo?lgesinde daha çok stres olus?tug?u gözlemlenmiştir. Bununla birlikte orta hatta konulan 3. implantın mandibula kırılganlığını arttırdığı gözlemlenmiştir. Anahtar Kelimeler; Atrofik tam dis?siz mandibula; Dental implant; Overdenture; Sonlu eleman analizi; Travmatik kuvvet
Objective: Implant-supported overdenture prostheses are preferred to rehabilitate edentulous patients in atrophic edentulous patients. However, there are no detailed studies on how these implant applications affect the endurance of the mandible, which has already decreased due to atrophy, against frontal traumatic forces. In this study, it is aimed to evaluate the effects of traditional full denture two-implant and three-implant supported overdenture prosthesis systems applied in atrophic fully edentulous mandibles on the endurance of the mandible against frontal traumatic forces. Materials and methods: An atrophic mandible was modeled in a computer environment. Traditional full denture, two implant supported locator attachment overdenture prosthesis, two implant supported bar attachment overdenture prosthesis, three implanted locater attachment overdenture prosthesis, three implanted bar attachment bar attachment overdenture prosthesis were applied in computer environment to simulate 5 different treatment models. Static linear analyzes were performed by applying 2000N force from a circular area of 1 cm diameter perpendicular to the frontal plane from the symphysis region to all models. As a result of the analyses, Pmax, Pmin and von Mises stress values on the mandible were obtained. Results: The stresses occurring in the models with the 3rd implant placed in the midline exceeded the endurance level of the mandible. The lowest stresses occurred in the models with bar attachment overdenture prosthesis applied with two implants. The stresses occurring in the condyle and angulus region remained below the endurance level of the mandible, and it was observed that the stresses occurred mostly in the symphysis region. It was observed that the use of bar attachment distributed the stresses from the symphysis to the condyle. Keywords; Atrophic edentulous mandible, Dental implant; Overdenture; Finite element analysis; Traumatic force
Objective: Implant-supported overdenture prostheses are preferred to rehabilitate edentulous patients in atrophic edentulous patients. However, there are no detailed studies on how these implant applications affect the endurance of the mandible, which has already decreased due to atrophy, against frontal traumatic forces. In this study, it is aimed to evaluate the effects of traditional full denture two-implant and three-implant supported overdenture prosthesis systems applied in atrophic fully edentulous mandibles on the endurance of the mandible against frontal traumatic forces. Materials and methods: An atrophic mandible was modeled in a computer environment. Traditional full denture, two implant supported locator attachment overdenture prosthesis, two implant supported bar attachment overdenture prosthesis, three implanted locater attachment overdenture prosthesis, three implanted bar attachment bar attachment overdenture prosthesis were applied in computer environment to simulate 5 different treatment models. Static linear analyzes were performed by applying 2000N force from a circular area of 1 cm diameter perpendicular to the frontal plane from the symphysis region to all models. As a result of the analyses, Pmax, Pmin and von Mises stress values on the mandible were obtained. Results: The stresses occurring in the models with the 3rd implant placed in the midline exceeded the endurance level of the mandible. The lowest stresses occurred in the models with bar attachment overdenture prosthesis applied with two implants. The stresses occurring in the condyle and angulus region remained below the endurance level of the mandible, and it was observed that the stresses occurred mostly in the symphysis region. It was observed that the use of bar attachment distributed the stresses from the symphysis to the condyle. Keywords; Atrophic edentulous mandible, Dental implant; Overdenture; Finite element analysis; Traumatic force
Açıklama
Anahtar Kelimeler
Diş Hekimliği, Dentistry
