PERBANDINGAN KOMPOSISI UNSUR PIRANTI RETENSI NIKEL TITANIUM DENGAN NIKEL TITANIUM SUPERELASTIC DAN UJI SIFAT KELELAHAN LOGAM

Andreas Wijaya(1*), Fajar H Nasution(2), Rosalina Tjandrawinata(3), Yohana Yusra(4),

(1) 
(2) Departemen; Ortodonti, Fakultas Kedokteran Gigi, Universitas Trisakti
(3) Departemen; Bahan Kedokteran Gigi, Fakultas Kedokteran Gigi, Universitas Trisakti
(4) Departemen; Ortodonti, Fakultas Kedokteran Gigi, Universitas Trisakti
(*) Corresponding Author

Abstract


Kawat nikel titanium (NiTi) dapat menjadi salah satu pilihan bahan piranti retensi cekat selain baja tahan karat berulir jamak (multistrand), yang masih dinilai kaku dan sering ditemukan terputus akibat sifat kelelahan logam. Pada penelitian ini akan dibandingkan komposisi unsur kawat piranti retensi NiTi dengan kawat NiTi superelastic dan menganalisa sifat kelelahan logam piranti retensi NiTi. Dua kelompok sampel, piranti retensi NiTi dan NiTi superelastic diuji komposisi unsur permukaannya menggunakan mikroskop SEM-EDX. Pada piranti retensi NiTi juga diberikan penekanan berulang untuk pengujian sifat kelelahan logam. Hasil SEM-EDX pada piranti retensi NiTi ditemukan adanya unsur nikel, titanium, aluminium, oksigen, dan silikon, tetapi pada NiTi superelastic hanya ditemukan unsur nikel dan titanium. Pada piranti retensi NiTi, terlihat adanya gambaran garis halus (striation) dan defleksi paska menerima tekanan vertikal berulang. Dibandingkan dengan NiTi superelastic, pada piranti retensi NiTi ditemukan unsur aluminium dan silikon yang mungkin dapat mempengaruhi sifat bahan, seperti meningkatkan formabilitas dan resistensi terhadap oksidasi secara berurutan.

Keywords


kawat piranti retensi NiTi, kawat NiTi superelastic, komposisi unsur, kelelahan logam

References


Proffit, W.R., Fields, H.W., Sarver, D.M. dan Ackerman, J.L., Contemporary Orthodontics. Ed ke-5. Missouri: Elsevier Mosby. 2013.

Cobourne, M.T. dan DiBiase, A.T., Handbook of Orthodontics. Ed ke-1. Philadelphia: Mosby Elsevier. 2011.

Bhalaji, Orthodontics-the Art and Sciences. Ed ke-1, Missouri: Mosby. 2006.

Valiathan, M. dan dan Hughes, E., Results of a survey-based study to identify common retention practices in the United States. American Journal of Orthodontics and Dentofacial Orthopedics, vol. 137, 2010. pp. 170-177.

Renkema, A.M., Sips, E.T.H., Bronkhorst, E. dan Kuijpers-Jagtman, A.M., A survey on orthodontic retention procedures in the Netherlands. European Journal of Orthodontics, vol. 31, 2009. pp. 432-7.

Renkema, A.M., Renkema, A., Bronkhorst, E. dan Katsaros, C., Long-term effectiveness of canine-to-canine bonded flexible spiral wire lingual retainers. American Journal of Orthodontics and Dentofacial Orthopedics., vol. 139, 2011. pp. 614-21.

Katsaros, C., Livas, C. dan Renkema, A.M., Unexpected complications of bonded mandibular lingual retainers. American Journal of Orthodontics and Dentofacial Orthopedics, vol. 132, 2007. pp. 838-41.

Sifakakis, I., et al., In-vitro assessment of the forces generated by lingual fixed retainers. American Journal of Orthodontics and Dentofacial Orthopedics., vol. 139, 2011. pp. 44-8.

Dahl, E. dan Zachrisson, B.U., Long-Term Experience with Direct-Bonded Lingual Retainers. Journal of Clinical Orthodontics, vol. 25, 1991. pp. 619-30.

Foek, D.L.S., Yetniker, E. dan Ozcan, M., Fatigue resistance, debonding force, and failure type of fiber-reinforced composite, polyethylene ribbon-reinforced, and braided stainless steel wire lingual retainers in vitro. The Korean Journal of Orthodontics, vol. 43, 2013. pp. 186-92.

Lee, K.D. dan Mills, C.M., Bond failure rates for V-loop vs straight wire lingual retainers. American Journal of Orthodontics and Dentofacial Orthopedics, vol. 135, 2009. pp. 502-6.

De Boever, J. dan De Boever, A., Occlusion and Periodontal Health, In: Ed Functional Occlusion in Restorative Dentistry and Prosthodontics, Klineberg and dan Eckert (Editor). Elsevier: Missouri. 2016. pp. 189-91.

Aksakalli, S., Corekci, B., Irgin, C., Ozturk, B. dan Malkoc, S., Bond strength of aged lingual retainers. Journal of Orthodontic Research, vol. 4, 2016. pp. 13-7.

Liou, E.J.W., Chen, L.I.J. dan Huang, C.S., Nickel-titanium mandibular bonded lingual 3-3 retainer: For permanent retention and solving relapse of mandibular anterior crowding. American Journal of Orthodontic and Dentofacial Orthopedics, vol. 119, 2001. pp. 443-9.

Anusavice, K.J., Shen, C. dan Rawls, H.R., Philips' Science of Dental Materials. Ed ke-12. Missouri: Elsevier Saunders. 2013.

Powers, J.M. dan Sakaguchi, R.L., Craig's Restorative Dental Materials. Ed ke-12. Missouri: Mosby Elsevier. 2006.

Eliades, T., Dental Materials in Orthodontic, In: Ed Orthodontics: Current Priciples and Techniques, Graber, Vanarsdall, and dan Vig (Editor). Mosby Inc.: Philadelphia. 2012. pp. 1030-1.

Gatto, E., et al., Load deflection characteristics of superelastic and thermal nickel titanium wires European Journal of Orthodontics, vol. 35, 2011. pp. 115-23.

Brauchli, L.M., Keller, H., Senn, C. dan Wichelhaus, A., Influence of bending made on the mechanical properties of nickel-titanium archwires and correlation to differential scanning calorimetry measurements. American Journal of Orthodontics and Dentofacial Orthopedics, vol. 139, 2011. pp. e449-54.

Smith, W.F. dan Hashemi, J., Foundations of Materials Science and Engineering. Ed ke-5. NewYork: McGraw Hill. 2010.

Callister, W.D. dan Rethwisch, D.G., Materials Science and Engineering. Ed ke-8. Hoboken: John Wiley & Sons, Pte. Ltd. 2011.

Sivaraj, A., Essentials of Orthodontics. Ed ke-1. New Delhi: Jaypee Brothers Medical Publishers (P) Ltd. . 2013.

Musilli, M., Acanfora, M., Gherlone, E. dan Lucchese, A., Anterior torque correction with bracketless fixed orthodontics. Journal of Clinical Orthodontics, vol. 46, 2012. pp. 558-62.

Gravina, M.A., et al., Mechanical properties of NiTi and CuNiTi wires used in orthodontic treatment part 2: Microscopic surface appraisal and metallurgical characteristics. Dental Press Journal of Orthodontics, vol. 19, 2014. pp. 69-76.

O' Brien, W.J., Dental Materials and Their Selection. Ed ke-3. Carol Stream: Quintessence Publishing Co, Inc. 2002.

Pelton, A. dan Duerig, T., TiNi Shape Memory Alloys. 1994. Website: https://nitinol.com/media/ reference-library/045.pdf, diakses tanggal 20 Febuari 2017.

Hodgson, D.E. dan Biermann, R.J., Shape Memory Alloy, In: Ed ASM Handbook volume 2 : Properties and Selection: Nonferoous Alloys and Special-Purpose Materials, ASM Comittee Editor ASM International: Materials Park. 1990. pp. 899.

Kurniawan, F.H. Pengaruh Penambahan 0,067, 0,081, dan 0,115 wt.% Ti Terhadap Karakteristik Paduan AC4B Hasil Low Pressure Die Casting (LPDC), S1. Skripsi. Universitas Indonesia, Depok, 2008.

Naylor, W., Introduction to Metal Ceramic Technology. Ed ke-2. Hanover Park: Quintessence Publishing Co, Inc. 2009.

Ivasishin, O., Savvakin, D., Gumenyak, M. dan Bondarchuk, O., Role of Surface in Titanium PM. 2012. Website: https://www.scientific.net/KEM.520. 121, diakses tanggal 30 November 2016.




DOI: https://dx.doi.org/10.31543/jtm.v2i1.109

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