The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Comparison of retention forces with various fabrication methods and materials in double crowns

  • Guven, Melahat Celik (Department of Prosthodontics, Faculty of Dentistry, Yeni Yuzyil University) ;
  • Tuna, Meral (Laboratory of Biomechanics, Faculty of Mechanical Engineering, Istanbul Techinical University) ;
  • Bozdag, Ergun (Laboratory of Biomechanics, Faculty of Mechanical Engineering, Istanbul Techinical University) ;
  • Ozturk, Gizem Nur (Department of Prosthodontics, Faculty of Dentistry, Istanbul University) ;
  • Bayraktar, Gulsen (Department of Prosthodontics, Faculty of Dentistry, Istanbul University)
  • Received : 2017.01.06
  • Accepted : 2017.06.19
  • Published : 2017.08.31
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Abstract

PURPOSE. The purpose of this study was to analyze the retention force changes and wear behaviours of double-crown systems over long-term use. MATERIALS AND METHODS. Ten groups, each consisting of six samples, were evaluated. Specifically, casting gold alloy primary crown - casting gold alloy secondary crown (AA), laser sintering primary crown - laser sintering secondary crown (LL), casting Cr alloy primary crown - casting Cr alloy secondary crown, (CC) zirconia primary crown - electroformed secondary crown (ZA), and CAD/CAM titanium alloy primary crown - CAD/CAM titanium alloy secondary crown (TT) groups were evaluated at cone angles of $4^{\circ}$ and $6^{\circ}$. The samples were subjected to 5,000 insertion-separation cycles in artificial saliva, and the retention forces were measured every 500 cycles. The wear levels were analyzed via SEM at the beginning and end of the 5,000 cycles. RESULTS. In all samples, the retention forces increased when the conus angle decreased. The highest initial and final retention force values were found in the $LL-4^{\circ}$ group (32.89 N-32.65 N), and the lowest retention force values were found in the $ZA6^{\circ}$ group (5.41 N-6.27 N). The ZA groups' samples showed the least change in the retention force, and no wear was observed. In the other groups, wear was observed mostly in the primary crowns. CONCLUSION. More predictable, clinically relevant, and less excursive retention forces can be observed in the ZA groups. The retention force values of the LL groups were statically similar to those of the other groups, except the ZA groups.

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References

  1. Stancic I, Jelenkovic A. Retention of telescopic denture in elderly patients with maximum partially edentulous arch. Gerodontology 2008;25:162-7. https://doi.org/10.1111/j.1741-2358.2007.00204.x
  2. Bayer S, Stark H, Golz L, Keilig L, Kraus D, Hansen A, Enkling N. Clinical retention force development of double crowns. Clin Oral Investig 2012;16:407-11. https://doi.org/10.1007/s00784-011-0530-2
  3. Wostmann B, Balkenhol M, Kothe A, Ferger P. Dental impact on daily living of telescopic crown-retained partial dentures. Int J Prosthodont 2008;21:419-21.
  4. Weigl P, Hahn L, Lauer HC. Advanced biomaterials used for a new telescopic retainer for removable dentures. J Biomed Mater Res 2000;53:320-36. https://doi.org/10.1002/1097-4636(2000)53:4<320::AID-JBM6>3.0.CO;2-W
  5. Igarashi Y, Goto T. Ten-year follow-up study of conical crown-retained dentures. Int J Prosthodont 1997;10:149-55.
  6. Grossmann AC, Hassel AJ, Schilling O, Lehmann F, Koob A, Rammelsberg P. Treatment with double crown-retained removable partial dentures and oral health-related quality of life in middle- and high-aged patients. Int J Prosthodont 2007;20:576-8.
  7. Beuer F, Edelhoff D, Gernet W, Naumann M. Parameters affecting retentive force of electroformed double-crown systems. Clin Oral Investig 2010;14:129-35. https://doi.org/10.1007/s00784-009-0271-7
  8. Langer A. Telescope retainers and their clinical application. J Prosthet Dent 1980;44:516-22. https://doi.org/10.1016/0022-3913(80)90070-0
  9. Langer A. Combinations of diverse retainers in removable partial dentures. J Prosthet Dent 1978;40:378-84. https://doi.org/10.1016/0022-3913(78)90116-6
  10. Gurbulak AG, Kilic K, Eroglu Z, Gercekcioglu E, Kesim B. Evaluation of the retention force of double conical crowns used in combination with a galvanoforming and casting fabrication technique. J Prosthodont 2013;22:63-8. https://doi.org/10.1111/j.1532-849X.2012.00897.x
  11. Korber KH. Das rationelle Teleskopsystem. ZWR 1983;92:38-43.
  12. Shimakura M, Nagata T, Takeuchi M, Nemoto T. Retentive force of pure titanium konus telescope crowns fabricated using CAD/CAM system. Dent Mater J 2008;27:211-5. https://doi.org/10.4012/dmj.27.211
  13. Turp I, Bozdag E, Sunbuloglu E, Kahruman C, Yusufoglu I, Bayraktar G. Retention and surface changes of zirconia primary crowns with secondary crowns of different materials. Clin Oral Investig 2014;18:2023-35. https://doi.org/10.1007/s00784-013-1183-0
  14. Santos EC, Shiomi M, Osakada K, Laoui T. Rapid manufacturing of metal components by laser forming. Inter J Machine Tools Manufacture 2006;46:1459-68. https://doi.org/10.1016/j.ijmachtools.2005.09.005
  15. Ortorp A, Jonsson D, Mouhsen A, Vult von Steyern P. The fit of cobalt-chromium three-unit fixed dental prostheses fabricated with four different techniques: a comparative in vitro study. Dent Mater 2011;27:356-63. https://doi.org/10.1016/j.dental.2010.11.015
  16. Iseri U, Ozkurt Z, Kazazoglu E. Shear bond strengths of veneering porcelain to cast, machined and laser-sintered titanium. Dent Mater J 2011;30:274-80. https://doi.org/10.4012/dmj.2010-101
  17. Liu Y, Wang Z, Gao B, Zhao X, Lin X, Wu J. Evaluation of mechanical properties and porcelain bonded strength of nickel-chromium dental alloy fabricated by laser rapid forming. Lasers Med Sci 2010;25:799-804. https://doi.org/10.1007/s10103-009-0690-3
  18. Shannon IL. Fluoride treatment programs for high-caries-risk patients. Clin Prev Dent 1982;4:11-20.
  19. Ohkawa S, Okane H, Nagasawa T, Tsuru H. Changes in retention of various telescope crown assemblies over long-term use. J Prosthet Dent 1990;64:153-8. https://doi.org/10.1016/0022-3913(90)90170-H
  20. Engels J, Schubert O, Guth JF, Hoffmann M, Jauernig C, Erdelt K, Stimmelmayr M, Beuer F. Wear behavior of different double-crown systems. Clin Oral Investig 2013;17:503-10. https://doi.org/10.1007/s00784-012-0746-9
  21. Bayer S, Zuziak W, Kraus D, Keilig L, Stark H, Enkling N. Conical crowns with electroplated gold copings: retention force changes caused by wear and combined off-axial load. Clin Oral Implants Res 2011;22:323-9. https://doi.org/10.1111/j.1600-0501.2010.02003.x
  22. Widbom T, Lofquist L, Widbom C, Soderfeldt B, Kronstrom M. Tooth-supported telescopic crown-retained dentures: an up to 9-year retrospective clinical follow-up study. Int J Prosthodont 2004;17:29-34.
  23. Behr M, Hofmann E, Rosentritt M, Lang R, Handel G. Technical failure rates of double crown-retained removable partial dentures. Clin Oral Investig 2000;4:87-90. https://doi.org/10.1007/s007840050121
  24. Behr M, Kolbeck C, Lang R, Hahnel S, Dirschl L, Handel G. Clinical performance of cements as luting agents for telescopic double crown-retained removable partial and complete overdentures. Int J Prosthodont 2009;22:479-87.
  25. Bayer S, Stark H, Mues S, Keilig L, Schrader A, Enkling N. Retention force measurement of telescopic crowns. Clin Oral Investig 2010;14:607-11. https://doi.org/10.1007/s00784-009-0315-z
  26. Gungor MA, Artunc C, Sonugelen M. Parameters affecting retentive force of conus crowns. J Oral Rehabil 2004;31:271-7. https://doi.org/10.1111/j.1365-2842.2004.01036.x
  27. Besimo CH, Graber G, Fluhler M. Retention force changes in implant-supported titanium telescope crowns over long-term use in vitro. J Oral Rehabil 1996;23:372-8. https://doi.org/10.1111/j.1365-2842.1996.tb00866.x
  28. Lenz J. Ein mathematisches Modell zur Berechnung des Haftund Festigkeitsverhaltens von konischen Teleskopkronen. Dtsch Zahnaerztl 1982;37:7-15.
  29. Wagner C, Stock V, Merk S, Schmidlin PR, Roos M, Eichberger M, Stawarczyk B. Comparison of retention Forces of different fabrication methods of Co-Cr crowns: Presintered and milled, cast and electroforming secondary crowns with different taper angles. Int J Dent Oral Sci 2015;3:15-20.

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