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CLASS V KAVİTELERDE KULLANILAN ÇEŞİTLİ RESTORASYON MALZEMELERİNİN SONLU ELEMANLAR YÖNTEMİYLE İNCELENMESİ

FINITE ELEMENT ANALYSIS OF VARIOUS RESTORATIVE MATEREALS İN CLASS V CAVITIES

Journal Name:

  • Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

Publication Year:

  • 2001

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
This study investigated the strength properties of various composites (SİİUA Plus, Z 100) compomer (Compoglass F, Dyract AP ) and resin modified glass ionomcr (Fuji II LC) restorative materials. The materials were assumed to be applied in a Class V cavity of a maxillary central incisor. 3-Dimensional Finite Element Method and NASTRAN package was used during the study. The tooth whose model was adopted from Wheeler had 294 elements and 420 nodes. An incisal loading of 20 kg acting at an angle of 26° with the longitudional axis was applied to the teeth. The possible effects of different load magnitudes and different loading angles were also studied. For this purpose loads of 10 kg and 40 kg and the loading angles of 0° and 90° were also Laken into consideration. It was found out thai the increase in Lhe loading angle effects more prominently than Lhe increase in the amount of the load but holh creates larger stresses in the tooth. It was also determined that the stresses developed in the restored teeth were reduced with an increase in the the Modulus of Elasticity of the restorative materials. Hence in this study, Z 100 which has the largest modulus of elasticity was performed better than the other materials concerned.
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Abstract (Original Language): 
Bu çalışmada bir Class V kavi Leye uygulandığı varsayılan rezin modifiyc cam iyonomer (Fuji II LC), kompo-zit rezin (Silux Plus, Z 100) ve kompomer (Compoglass H, Dyract AP) içeren restorasyon malzemelerinin mukavemet özellikleri 3-Boyutlu Sonlu Elemanlar Yöntemi ve NASTRAN programı yardımıyla incelendi. Class V kav itenin bir üst ön keser dişe açıldığı kabul edildi ve modeli Wheeler'dnn alman diş 294 eleman vc 42ü düğüm noktasından oluşmaklaydı. Dişe uzun ekseni ile 26 derecelik bir açı yapan 20 kg. Iık bir insi/.al yük uygulandı. Farklı yüklerin ve farklı yükleme açılarının olası etkilerim değerlendirmek amacıyla 10 ve 40 kg. Iık iki farklı yük ve 0° ile 90° İki farklı yükleme açısı da çalışmada göz önüne alındı. Çalışmanın sonuçlarına göre yükleme açısının, yük miktarına göre daha. eLkin olduğu aneak her ikisinin dc dişle oluşan gerilmeleri arttırdığı belirlendi. Ayrıca dişle oluşan gerilmelerin, kullanılan restorasyon malzemesinin elastik modülündeki artmayla birlikte azaldığı da bulundu. Çalışmada, en yüksek elastik modülüne sahip, Z 100 dişte en düşük gerilmeleri oluşturdu.
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  • 1
32-40
  • Turkish

REFERENCES

References: 

1. Beer FP, Johnston RJr. Mechanics of materials. Second S! Metric Edition McGraw-Hill, Singapur, 1992.
2. Bracm M, I-ambredıts P, Vanherle G. Stress -induced cervical lesions. J Prosthet Dent
1992 67:718-722,
3. Christensen GJ. Compomcrs vs. resin-reinforced glass ionomcrs. JADA 1997 128:
479-480.
4. Darendeliler S, Darendeliler H, Kınoğlu T\ Analysis of a central maxillary ineisor by using a Lhree-dimensional finite clement method. J Oral Rehabil 1992 19: 371-383.
5. Ho M, Lee S, Chen H, Lee M, Three-dimensional finite element anaysis of the effects of posts on stress distribution in dentin, j r/rosthet dent 1994; 72: 367-372.
6r Hood JAA. Biomechanics of the intact prepared and restored tooth: some clinical implications. Int Dent J 1991 41: 25-32.
7. Jörgensen KD, Matona Rr Shımokobe H. Deformation of cavities and resin fillings in loaded teeth. Scan J Dent Res 1976 84: 46 50.
8. Katona TR, Winkler MM. Stress analysis of a bulk-filled Class V light- cured composite restoration. J Dent Res 1994 73(8): 14-70.
9. Lee WCV Eakle WS. Possible role of tensile stress in the etiology of cervical erosive lesions of teeth. J Prosthet Dent 198452: 374.
10. McCoy RB, Anderson MH, Lepe X, Johnson GH. Clinical success of Class V composite resin restorations without mechanical retention. JADA 1998129: 593-599.
11. Mehl A, Hickcl R, Kimzelmann KH. Physical properties and gap I'orrtiaLion of light-cured composites
. i ...M.,.,i ., ...A. .. J., ... i; ,„... „; •; „ _ i i rv-.n. im.nn.
321-330! W1UJUU' 3"1LÛLt"1 —
12. Osborne-Smith KL, Burke KIT, Wikon NHF. The aetiology of the non-carious cervical Jcsion. Int Dent J
1999 49: 139-143,
13. Powell LV, Johnson GH, Gordon GH. Factors associated with clinical success of cervical abrasion/erosion restorations. OperDent 1995 20:7-13.
14. Rees JS, O'dougherty D, Pullin R. The stress reducing capacity of unfilled resin in a class V cavity. J Oral Rehabil 1999 26:422-427,
15. Rees JS, Jacobsen PH. The effect of interfacial failure around a class V composite restoration analysed by the finite clement method. J Oral Rehabil 2000 27: Jll-116. 14. 13.
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Atatürk Üniv.Diş Hek.Fak.Dcrg. Ciltli, Sayı:l, Sayfa:32-40,2001
DARENDELİLER YAMAN
16. Winkler MM, Katona TR, Paytlar NH. Finite element stress analysis of three filling techniques for Class V light-cured composite restorations. J Dent Res 1996 75 (7) : 1477-1483.
17.
Yama
n DS. Sonlu elemanlar yöntemi ve diş hekimi i ğindeki uygulamalar Atatürk (] Dişhek Fak Derg 1995 5(l):87-96.
18. Yaman DS, Alaçam T, Ysıman Y. Analysis of stress distribution in a vertically condensed maxillary central incisor root canal. J Erıdod 1995 21 (fi): .121-325.
19. Yaman DS, Alaçam T, Yaman Y. Analysis of stress distribution in a maxillary central incisor subjected to various post and core applications. J Etidod 199824(2): 107-111.
20. Ziemiecki TL, Dennison JB, Giarbeiieau GT. Clinical evalution of cervical composite resin restorations placed without retention. Oper Dent 1987 12:27-33.

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