Dinamik Yükleme Yapılan Kısa İmplantlarda Kron/İmplant Oranının Stres Dağılımına Etkisinin İncelenmesi
Öz
Amaç: Bu çalışmanın amacı farklı kron/implant oranına
sahip kısa implantlar üzerine uygulanan statik ve dinamik yüklerin implantı
çevreleyen kemik doku ve implantta meydana getirdiği stresin sonlu elemanlar
stres analiz yöntemiyle incelenmesidir.
Gereç ve Yöntemler: Çalışmada, 4.1 mm çapında ve üç farklı uzunlukta
(6 mm, 8 mm ve 10 mm) toplam 3 adet dental implant seçilmiştir. Bu üç implantın
üzerine kron/implant oranı 1/1, 1.5/1 ve 2/1 olacak şekilde üçer adet alt
birinci molar metal destekli seramik kron bilgisayar ortamında tasarlanmış ve
implant destekli kronlar yine bilgisayar ortamında mandibula modeline
yerleştirilerek toplam 9 adet çalışma modeli elde edilmiştir. Elde edilen bu
modellere, vertikal ve oblik fonksiyonel kuvvetler uygulanarak, kortikal ve
spongioz kemikte oluşan maksimum ve minimum asal stres değerlerine, implantta
oluşan Von Mises stres değerlerine, implantlarda meydana gelen yorulma
değerlerine kron/implant oranının etkisi üç boyutlu sonlu elemanlar stres
analiz yöntemiyle incelenmiştir.
Bulgular: Aynı miktarda kuvvet uygulanmasına rağmen, oblik
yükleme yapılan modellerde dik yükleme yapılan modellere oranla implant
sistemini oluşturan parçalarda ve kemik dokuda stres seviyelerinde belirgin bir
artış olmuştur. Tüm modellerde, kron/implant oranındaki artış implant sistemini
oluşturan parçalarda ve kemik dokuda stres seviyelerinde belirgin bir artışa
neden olmuştur.
Sonuçlar: Bu çalışmanın limitleri dahilinde elde edilen
sayısal değerler, kron/implant oranının yük transfer mekanizmalarını ve
implantların klinik başarı sürelerini etkilediğini göstermiştir. Mandibular
molar bölgede tek diş eksikliklerinde uygulanacak implant tedavisinde 1/1
kron/implant oranının diğer oranlara göre daha iyi sonuçlar verdiği tespit
edilmiştir. Kron/implant oranındaki artış stres miktarlarının artmasına ve
implantların klinik başarı sürelerinin kısalmasına neden olmuştur.
Anahtar Kelimeler: Dinamik yükleme, kısa implant, kron/implant
oranı, sonlu eleman stres analizi
Anahtar Kelimeler
Destekleyen Kurum
Ankara Üniversitesi Bilimsel Araştırma Proje Müdürlüğü
Proje Numarası
10B3334003
Teşekkür
Yazarlar Ankara Üniversitesi Bilimsel Araştırma Proje Müdürlüğü'ne verdikleri proje desteği için teşekkürlerini sunarlar.
Kaynakça
- 1.Park KB, Ryu KH. The Short Implant (5 mm & 6 mm in Length). Seul: Narae Publishing Inc, 2007.
- 2.Annıbalı S, Crıstallı MP, Dell’aquıla D, Bıgnozzı I, La Monaca G, Pıllonı A. Short dental implants: A systematic review. J Dent Res 2012;91:25-32.
- 3.Anitua E, Orive G. Short implants in maxillae and mandibles: A retrospective study. J Periodontol 2010;81:819-26.
- 4.Grossmann Y, Sadan A. The prosthodontic concept of crown-to-root ratio: A review of the literature. J Prosthet Dent 2005;93:559-62.
- 5.Wyatt CC, Zarb GA. Treatment outcomes of patients with implant-supported fixed partial prostheses. Int J Oral Maxillofac Imp 1998;13:204-11.
- 6.Winkler S, Morris HF, Ochi S. Implant survival to 36 months as related to length and diameter. Ann Periodontol 2000;5:22-31.
- 7.Hermann I, Lekholm U, Holm S, Kultje C. Evaluation of patient and implant characteristics as potential prognostic factors for oral implant failures. Int J Oral Maxillofac Imp 2005;20:220-30.
- 8.Weng D, Jacobson Z, Tarnow D, Hurzeler M, Faehn O, Sanavı P ve ark. A prospective multicenter clinical trial of 3i machined-surfaced implants: Results after 6 years of follow-up. Int J Oral Maxillofac Imp 2003;18:417-23.
- 9.Malo P, Nobre MA, Rangert B. Short implants place done-stage in maxilla and mandibles: A retrospective clinical study with 1 to 9 years of follow-up. Clin Imp Dent Relat Res 2007; 9:15-21.
- 10.Yurdukoru B, Eskıtascıoglu G. Computer applications in dentistry. Ankara Univ Diş Hekim Fak Derg 1998;15:241-48.
- 11.Karl M, Dıckınson A, Holst S, Holst A. Biomechanical methods applied in dentistry: A comperative overwiev of photoelastic examinations, strain gauge measurements, finite element analysis and three-dimensional deformation analysis. Eur J Prosthodont Rest Dent 2009;17:50-7.
- 12.Nelson SJ, Major M. Ash Jr. Wheeler's Dental Anatomy, Physiology and Occlusion, 9th edn. Missouri: Sounders Publishing, 2010.
- 13.Misch CE. Dental Implant Prosthetics. Missouri: Elsevier Mosby, 2005.
- 14.Raıner AU, Daher S, Leary J, Emanuel KM, Chuang AK. The survival of ultrashort locing-taper implants. Int J Oral Maxillofac Imp 2012;27:644-54.
- 15.Holmgren EP, Seckınger RJ, Kılgren LM, Mante F. Evaluating parameters of osseointegrated dental implants using finite element analysis-A two-dimensional comperative study examining the effects of implant diameter, implant shape, and load direction. J Oral Implantology 1998;24:80-8.
- 16.Natali AN. Dental Biomechanics. London: Taylor & Francis Publishing, Co Inc, 2003.
- 17.Baggı L, Cappellonı I, Gırolama MD, Macerı F, Vaıro G. The influence of implant diameter and length on stres distribution of osseointegrated implants related to crestal bone geometry: A three-dimensional finite element analysis. J Prosthet Dent 2008;100:422-31.
- 18.Laurell L, Lundgren D. A standardized programme for studying the occlusal force pattern during chewing and biting in prosthetically restored dentitions. J Oral Rehabil 1984;11:39-44.
- 19.Kharısat A, Stegaroıu R, Nomura S, Mıyakawa O. Fatigue resistance of two implant-abutment join designs. J Prosthet Dent 2002;88:604-10.
- 20.Cehrelı MC, Akca K, Iplıkcıoglu H, Sahın S. Dynamic fatigue resistance of implant-abutmant junction in an internally notched morse-taper oral implant: influence of abutment design. Clin Oral Imp Res 2004;15:459-65.
- 21.Blanes RJ. To what extent does the crown-implant ratio affect the survival and complications of implant-supported reconstructions: A systematic review. Clin Oral Imp Res 2009;20:67-72.
- 22.Bırdı H, Schulte J, Kovacs A, Weed M, Chuang SK. Crown-to-implant ratios of short-length implants. J Oral Imp 2010;6: 425-33.
- 23.Carvalho NA, Almeıda EO, Rocha EP, Freıtas AC, Anchıeta RB, Kına S. Short implant to support maxillary restorations: Bone stress analysis using regular and switching platform. J Crainofac Surgery 2012;23:678-81.
- 24.Chang SH, lın CL, Hsue SS, lın YS, Huang SR. Biomechanical analysis of effects of implant diameter and bone quality in short implants placed in atrophic posterior maxilla. Medical Engineering & Physics 2012;34:153-60.
- 25.Demenko V, Lınetsky K, Nesvıt K, Scevchenko A. Ultimate masticatory force as a criterion in implant selection. J Dent Res 2011;90:1211-5.
- 26.Maıor BSS, Senna PM, Sılva WJ, Rocha EP, Cury AADB. Influence of crown-to-implant ratio, retention system, restorative material, and occlusal loading on stress concentrations in single short implants. Int J Oral Maxillofac Imp 2012;27:13-8.
- 27.Gross MD. Occlusion in implant dentistry: A review of the literature of prosthetic determinants and current concepts. Australian Dental Journal 2008;53:60-8.
Evaluation of the Effect of Crown/Implant Ratio on Stress Distribution in Dynamic Loaded Short Implants
Öz
Background: The aim of this study is to investigate the
stress distribution in surrounding bone tissue and implant caused by static and
dynamic loaded short implants with different crown/implant ratios by finite
element stress analysis method.
Methods: A total of 3 dental implants with a diameter of
4.1 mm and three different lengths (6 mm, 8 mm and 10 mm) were selected. These three implants are designed with three
lower first molar metal-supported ceramic crowns on the crown/implant ratio of
1/1, 1.5 / 1 and 2/1 and implant-supported crowns were placed into the mandible
model and a total of 9 study models were
obtained. For the evaluation of the effect of crown/implant ratio, the vertical
and oblique functional forces applied to these models, the maximum and minimum
principle stress values in the cortical and spongious bone, the Von Mises
stress values on the implant and the fatigue values occurring in the implants
were investigated by three dimensional finite element stress analysis method.
Results: Although the same amount of force was applied,
there was a significant increase in stress levels in the parts of the implant
system and in the bone tissue compared to the models with oblique loading. In all models, the increase in crown/implant
ratio caused a significant increase in stress levels in the parts of the
implant system and bone tissue.
Conclusions: The numerical values obtained within the
limitations of this study showed that the crown/implant ratio affected the load
transfer mechanisms and the clinical success times of the implants. It has been determined that 1/1 crown/implant
ratio gives better results compared to other ratios in implant treatment which
will be applied in one tooth deficiency in mandibular molar region. The increase in crown/implant ratio resulted in
increased stress levels and shortening the clinical success times of implants.
Keywords: Dynamic loading, short implant, crown/implant
ratio, finite element stress analysis.
Anahtar Kelimeler
Proje Numarası
10B3334003
Kaynakça
- 1.Park KB, Ryu KH. The Short Implant (5 mm & 6 mm in Length). Seul: Narae Publishing Inc, 2007.
- 2.Annıbalı S, Crıstallı MP, Dell’aquıla D, Bıgnozzı I, La Monaca G, Pıllonı A. Short dental implants: A systematic review. J Dent Res 2012;91:25-32.
- 3.Anitua E, Orive G. Short implants in maxillae and mandibles: A retrospective study. J Periodontol 2010;81:819-26.
- 4.Grossmann Y, Sadan A. The prosthodontic concept of crown-to-root ratio: A review of the literature. J Prosthet Dent 2005;93:559-62.
- 5.Wyatt CC, Zarb GA. Treatment outcomes of patients with implant-supported fixed partial prostheses. Int J Oral Maxillofac Imp 1998;13:204-11.
- 6.Winkler S, Morris HF, Ochi S. Implant survival to 36 months as related to length and diameter. Ann Periodontol 2000;5:22-31.
- 7.Hermann I, Lekholm U, Holm S, Kultje C. Evaluation of patient and implant characteristics as potential prognostic factors for oral implant failures. Int J Oral Maxillofac Imp 2005;20:220-30.
- 8.Weng D, Jacobson Z, Tarnow D, Hurzeler M, Faehn O, Sanavı P ve ark. A prospective multicenter clinical trial of 3i machined-surfaced implants: Results after 6 years of follow-up. Int J Oral Maxillofac Imp 2003;18:417-23.
- 9.Malo P, Nobre MA, Rangert B. Short implants place done-stage in maxilla and mandibles: A retrospective clinical study with 1 to 9 years of follow-up. Clin Imp Dent Relat Res 2007; 9:15-21.
- 10.Yurdukoru B, Eskıtascıoglu G. Computer applications in dentistry. Ankara Univ Diş Hekim Fak Derg 1998;15:241-48.
- 11.Karl M, Dıckınson A, Holst S, Holst A. Biomechanical methods applied in dentistry: A comperative overwiev of photoelastic examinations, strain gauge measurements, finite element analysis and three-dimensional deformation analysis. Eur J Prosthodont Rest Dent 2009;17:50-7.
- 12.Nelson SJ, Major M. Ash Jr. Wheeler's Dental Anatomy, Physiology and Occlusion, 9th edn. Missouri: Sounders Publishing, 2010.
- 13.Misch CE. Dental Implant Prosthetics. Missouri: Elsevier Mosby, 2005.
- 14.Raıner AU, Daher S, Leary J, Emanuel KM, Chuang AK. The survival of ultrashort locing-taper implants. Int J Oral Maxillofac Imp 2012;27:644-54.
- 15.Holmgren EP, Seckınger RJ, Kılgren LM, Mante F. Evaluating parameters of osseointegrated dental implants using finite element analysis-A two-dimensional comperative study examining the effects of implant diameter, implant shape, and load direction. J Oral Implantology 1998;24:80-8.
- 16.Natali AN. Dental Biomechanics. London: Taylor & Francis Publishing, Co Inc, 2003.
- 17.Baggı L, Cappellonı I, Gırolama MD, Macerı F, Vaıro G. The influence of implant diameter and length on stres distribution of osseointegrated implants related to crestal bone geometry: A three-dimensional finite element analysis. J Prosthet Dent 2008;100:422-31.
- 18.Laurell L, Lundgren D. A standardized programme for studying the occlusal force pattern during chewing and biting in prosthetically restored dentitions. J Oral Rehabil 1984;11:39-44.
- 19.Kharısat A, Stegaroıu R, Nomura S, Mıyakawa O. Fatigue resistance of two implant-abutment join designs. J Prosthet Dent 2002;88:604-10.
- 20.Cehrelı MC, Akca K, Iplıkcıoglu H, Sahın S. Dynamic fatigue resistance of implant-abutmant junction in an internally notched morse-taper oral implant: influence of abutment design. Clin Oral Imp Res 2004;15:459-65.
- 21.Blanes RJ. To what extent does the crown-implant ratio affect the survival and complications of implant-supported reconstructions: A systematic review. Clin Oral Imp Res 2009;20:67-72.
- 22.Bırdı H, Schulte J, Kovacs A, Weed M, Chuang SK. Crown-to-implant ratios of short-length implants. J Oral Imp 2010;6: 425-33.
- 23.Carvalho NA, Almeıda EO, Rocha EP, Freıtas AC, Anchıeta RB, Kına S. Short implant to support maxillary restorations: Bone stress analysis using regular and switching platform. J Crainofac Surgery 2012;23:678-81.
- 24.Chang SH, lın CL, Hsue SS, lın YS, Huang SR. Biomechanical analysis of effects of implant diameter and bone quality in short implants placed in atrophic posterior maxilla. Medical Engineering & Physics 2012;34:153-60.
- 25.Demenko V, Lınetsky K, Nesvıt K, Scevchenko A. Ultimate masticatory force as a criterion in implant selection. J Dent Res 2011;90:1211-5.
- 26.Maıor BSS, Senna PM, Sılva WJ, Rocha EP, Cury AADB. Influence of crown-to-implant ratio, retention system, restorative material, and occlusal loading on stress concentrations in single short implants. Int J Oral Maxillofac Imp 2012;27:13-8.
- 27.Gross MD. Occlusion in implant dentistry: A review of the literature of prosthetic determinants and current concepts. Australian Dental Journal 2008;53:60-8.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Diş Hekimliği |
| Bölüm | Araştırma |
| Yazarlar | |
| Proje Numarası | 10B3334003 |
| Yayımlanma Tarihi | 17 Aralık 2019 |
| Gönderilme Tarihi | 15 Mayıs 2019 |
| Yayımlandığı Sayı | Yıl 2019 Cilt: 6 Sayı: 3 |
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