Dual sertleşen bir yapıştırma simanının farlı bitirme ve parlatma işlemleri ardından yüzey özelliklerinin incelenmesi: sem çalışması

Tam seramik materyallerden oluşturulan veneer, inley/onley ve kron gibi tam seramik restorasyonların yapıştırılmasında genellikle dual sertleşen yapıştırma simanları kullanılır ve quartz-tungsten halojen (QTH) veya ışık yayan diyot (LED) ışık kaynaklarından birisi ile polimerize edilirler. Yapıştırma simanlarının polimerizasyonlarının ardından restorasyon marjinlerinde farklı bitirme ve parlatma işlemleri uygulanır. Bu çalışmanın amacı, dual sertleşen yapıştırma simanının (Rely X ARC, 3M-ESPE) polimerizasyonu ile farklı bitirme ve parlatma işlemlerinin ardından yüzey özelliklerinin farklı magnifikasyon değerlerinde yüzey tarama elektron mikroskobu (SEM) kullanılarak karşılaştırılmasıdır. Her grup için 6 mm çapında ve 3 mm kalınlığında disk şeklinde 6.şar örnek hazırlandı. Test materyallerinin polimerizasyonunda QTH (Optilux 501, Sybron-Kerr) veya LED (Elipar Freelight 2, 3M-ESPE) ışık cihazlarından biri kullanıldı. Örneklerin yüzey özellikleri Grup 1; şeffaf bant, grup 2; karbit bitirme frezi, grup 3; alüminyum oksit bitirme ve parlatma diskleri, grup 4; parlatma lastikleri, grup 5; parlatma fırçaları, grup 6; karbit frez ardından alüminyum oksit bitirme ve parlatma diskleri, grup 7; karbit frez ardından parlatma lastikleri ve grup 8; karbit frez ardından parlatma fırçaları olarak incelendi. Bitirme frezi uygulanan test örnekleri en pürüzlü yüzeyleri oluşturdu. Şeffaf bant diğer tüm gruplara kıyasla en pürüzsüz yüzeyi sergiledi. Farklı ışık kaynaklarının yapıştırma simanı yüzey özelliklerini etkilemediği tespit edildi. Çalışmadan elde edilen bilgiler ışığı altında en az miktarda tutulan taşkın simanın uzaklaştırma işleminde karbit bitirme frezleri kullanmayarak marjinal alanda daha pürüzsüz yüzeyler elde edileceği ve bu işlemin restorasyonun klinik başarısını olumlu yönde etkileyebileceği belirlendi.

Anahtar Kelimeler:

Yüzey özellikleri, Kompozit rezinler, Dental simanlar, Dental cilalama

Surface texture of a dual cure composite resin luting cement after different finishing and polishing regimes: sem study

In order to cement all ceramic restorations, such as ceramic veneers, inlays/onlays and crowns, dual cure composite resin luting cements are generally used and photo polymerized using with different types of light curing units such as quartz-tungsten halogen (QTH) and light-emitting diode (LED). After curing luting cements, different finishing and polishing regimes are conducted on the margins of the restorations. The aim of this study was to compare surface texture of a dual cure composite resin cements (Rely X ARC, 3M-ESPE) after curing and applying different finishing and polishing regimes, utilising scanning electron microscope (SEM) photographs with different magnifications. Six disc shaped test specimen with 6 mm diameter and 3 mm thickness was prepared for each group. Test materials were cured using either QTH (Optilux 501, Sybron-Kerr) or LED (Elipar Freelight 2, 3M-ESPE) curing units. Analyses of the surface texture of the cement finished and polished with mylar strip (Group 1), carbide finishing bur (Group 2), series of aluminum oxide polishing discs (Group 3), polishing cups (Group 4), polishing brush (Group 5), carbide bur followed by series of aluminum oxide polishing discs (Group 6), carbide bur followed by polishing cups (Group 7), carbide bur followed by polishing brush (Group 8). Specimens finished utilising carbide bur displayed the roughest surface. Mylar strip displayed the smoothest surface in all test groups. Curing with different light curing units did not show significant differences regarding surface texture. In the light of this study avoiding the use of carbide burs when removing minimally formed excess cement, will led to smoother surfaces at the marginal area and may have a positive effect on the longevity of the restoration.

Keywords:

Surface Properties, Composite Resins, Dental Cements, Dental Polishing,

PDF

___

1. Toh CG, Setcos JC, Weinstein AR. Indirect dental laminate veneers- an overview. J Dent 1987;15:117- 24
2. Burke FJ, Qualtrough AJ. Follow-up evaluation of a series of dentin-bonded ceramic restorations. J Esthet Dent 2000;12:16-22
3. Naert I, Van der Donck A, Beckers L. Precision of fit and clinical evaluation of all-ceramic full restorations followed between 0.5 and 5 years. J Oral Rehabil 2005;32:51-7
4. Jung H, Friedl H, Hiller A, Haller A, Schmalz G. Curing efficiency of different polymerization methods through ceramic restorations. Clin Oral Invest 2001;5:156
5. Savarino L, Breschi L, Tedaldi M, Ciapetti G, Tarabusi C, Greco M, Giunti A, Prati C. Ability of restorative and fluoride releasing materials to prevent marginal dentine demineralization. Biomater 2004;25:1011-17
6. Irie M, Suzuki K, Watts DC. Marginal and flexural integrity of three classes of luting cement, with early finishing and water storage. Dent Mater 2004;20:3-11
7. Shintani H, Satou J, Satou N, Hayashihara H, Inoue T. Effects of various finishing methods on staining and accumulation of Streptococcus mutans HS-6 on composite resins. Dent Mater 1985;1:225-27
8. Jefferies SR. The art and science of abrasive finishing and polishing in restorative dentistry. Dent Clin North Am 1998;42:613-27
9. Lopes GC, Franke M, Maia HM. Effect of finishing time and techniques on marginal sealing ability of two composite restorative materials. J Prosthet Dent 2002;88:32-6
10. Berastegui E, Canalda C, Brau E, Miquel C. Surface roughness of finished composite resins. J Prosthet Dent 1992;68:742-49
11. Jefferies SR, Barkmeier WW, Gwinnett AJ. Three composite finishing systems: a multisite in vitro evaluation. J Esthet Dent 1992;4:181-85
12. Tate WH, DeSchepper EJ, Cody T. Quantitative analysis of six composite polishing techniques on a hybrid composite material. J Esthet Dent 1992; 4:30-2
13. Goldstein, RE. Finishing of composites and laminates. Dent Clin North Am 1989;33:305-18.
14.Wilson F, Heath JR, Watts DC. Finishing composite restorative materials. J Oral Rehabil 1990;17:79-87
15. Stoddard JW, Johnson GH. An evaluation of polishing agents for composite resins. J Prosthet Dent 1991;65:491-95
16. Hondrum SO, Fernandez R. Contouring, finishing and polishing Class 5 restorative materials. Oper Dent 1997;22:30-6
17. Lutz, F, Setcos JC, Phillips RW. New finishing instruments for composite resins. J Am Dent Assoc 1983;107:575-80
18. Ashe MJ, Tripp GA, Eichmiller FC, George LA, Mejers JC. Surface roughness of glass-ceramic insert-composite restorations: Assessing several polishing techniques. J Am Dent Assoc 1996;127:1495-1500
19. Kaplan BA, Goldstein GR, Vijayaraghavan TV, Nelson IK. The effect of three polishing systems on the surface roughness of four hybrid composites: A profilometric and scanning electron microscopy study. J Prosthet Dent 1996;76:34-8.
20. Roeder LB, Tate WH, Powers JM. Effect of finishing and polishing procedures on the surface roughness of packable composites. Oper Dent 2000;25:534-43
21. Bagheri R, Burrow MF, Tyas MJ. Surface characteristics of aesthetic restorative materials – an SEM study. J Oral Rehabil 2007;34:68-76
22. Christensen RP, Christensen GJ. Comparison of instruments and commercial pastes used for finishing and polishing composite resin. Gen Dent 1981;29:40- 5
23. Manhart J, Kunzelmann KH, Chen HY, Hickel R. Mechanical properties and wear behaviour of light-cured packable composite resins. Dent Mater 2000;16:33-40
24. St-Georges AJ, Bolla M, Fortin D, Muller-Bolla M, Thompson JY, Stamatiades PJ. Surface finish produced on three resin composites by new polishing systems. Oper Dent 2005;30:593-97
25. Martinelli J, Pires-de-Souza Fde C, Casemiro LA, Tirapelli C, Panzer H. Abrasion resistance of composites polymerized by light-emitting diodes (LED) and halogen light-curing units. Braz Dent J 2006;17:29-33
26. Chung KH. Effects of finishing and polishing procedures on the surface texture of resin composites. Dent Mater 1994;10:325-30
27.Yap AUJ, Lye KW, Sau CW. Surface characteristics of tooth-colored restoratives polished utilizing different polishing systems. Oper Dent 1997;22:260-65
28.Yap AUJ, Tan S, Teh TY. The effect of polishing systems on microleakage of tooth coloured restoratives: Part 1. Conventional and resin-modified glass-ionomer cements. J Oral Rehabil 2000;27:117-23
29. Reis AF, Giannini M, Lovadino JR, Ambrosano GM. Effects of various finishing systems on the surface roughness and staining susceptibility of packable composite resins. Dent Mater 2003;19:12-8
30. Gladys S, Van Meerbeek B, Braem M, Lambrechts P, Vanherle G. Comparative physico-mechanical characterization of new hybrid restorative materials with conventional glass–ionomerand resin composite restorative materials. J Dent Res 1997;76:883–94
31. Xie D, Brantley WA, Culbertson BM, Wang G. Mechanical properties and microstructures of glass–ionomer cements. Dent Mater 2000;16:129–38
32. Mansour YF, Pintado MR, Mitchell CA. Optimizing resin cement removal around esthetic crown margins. Acta Odontol Scand 2006;64:231-36
33. El-Attar MS. A simplified method for removing excess cement after final cementation of fixed partial dentures. J Prost Dent 1995;73:225
34. Neumann MG, Schmitt CC, Ferreira GC, Correa IC. The initiating radical yields and the efficiency of polymerization for various dental photoinitiators excited by different light curing units. Dent Mater 2006;22:576-84