The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

AN IN-VITRO WEAR STUDY OF INDIRECT COMPOSITE RESINS AGAINST HUMAN ENAMEL

법랑질에 의한 수종의 간접복합레진의 마모에 관한 연구

  • Yi, Hyun-Jeong (Department of Dentistry, College of Dentistry, Busan National University) ;
  • Jeon, Young-Chan (Department of Dentistry, College of Dentistry, Busan National University) ;
  • Jeong, Chang-Mo (Department of Dentistry, College of Dentistry, Busan National University) ;
  • Jeong, Hee-Chan (Department of Dentistry, College of Dentistry, Busan National University)
  • 이현정 (부산대학교 치과대학 보철학교실) ;
  • 전영찬 (부산대학교 치과대학 보철학교실) ;
  • 정창모 (부산대학교 치과대학 보철학교실) ;
  • 정희찬 (부산대학교 치과대학 보철학교실)
  • Published : 2007.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Statement of problem: Second-generation indirect composite resins have been improved flexural strength, compressive strength, hydrolytic degradation resistance, wear resistance compared to first-generation indirect composite resins, but there are still some problems as hydrolysis and low wear resistance. Some manufacturers claim that wear resistance of their materials has been improved, but little independent study has been published on wear properties of these materials and the properties specified in the advertising materials are largely derived from in-house or contracted testing. Purpose: This study was to evaluate the wear of indirect composite resins (SR Adore, Sinfony, Tescera ATL) and gold alloy against the human enamel. Material and method: Extracted human incisors and premolars were sectioned to $2{\times}2{\times}2mm$ cube and embedded in the clear resin and formed conical shaped antagonist to fit the jig of pin-on-disk tribometer. Total 20 antagonists were stored in distilled water. Five disk samples, 24mm in diameter and 1.5mm thick, were made for each of three groups of indirect composite resins and gold alloy group, and polished to #2,000 SiC paper on auto-polishing machine. Disk specimens were tested for wear against enamel antagonists. Wear test were conducted in distilled water using a pin-on-disk tribometer under condition (sliding speed 200rpm contact load 24N, sliding distance 160m). The wear of the enamel was determined by weighing the enamel antagonist before and after test, and the weight was converted to volumes by average density. The wear tracks were analyzed by scanning electron microscopy and surface profilometer to elucidate the wear mechanisms. Statistical analysis of the enamel wear volume, wear track depth and wear tract width of disk specimens were accomplished with one-way ANOVA and the means were compared for significant differences with Scheffe's test. Results: 1. The enamel wear was most in gold alloy, but there were no statistically significant differences among all the groups (P>.05). 2. In indirect composite resin groups, the group to make the most shallow depth of wear tract was Sinfony, followed by Tescera ATL, SR Adoro (P<.05). Gold alloy was shallower than Sinfony, but there was no statistically significant difference between Sinfony and gold alloy (P>.05). 3. The width of wear tract of SR Adore was larger than the other groups (P<.05), and there were no statistically significant differences among the other groups (P>.05). 4. SEM analysis revealed that Sinfony and gold alloy showed less wear scars after test, Tescera ATL showed more wear scars and SR Adore showed the most. Conclusion: Within the limits of this study, Sinfony and gold alloy showed the least wear rates and showed similar wear patterns.

Keywords

References

  1. DeLong R, Sasik C, Pintado MR, Douglas WH. The wear of enamel when opposed by ceramic systems. Dent Mater 1989:5:266-71 https://doi.org/10.1016/0109-5641(89)90073-0
  2. Mahalich JA, Knap FJ, Weiter EJ. Occlusal wear in prosthodontics. J Am Dent Assoc 1971:82:154-9 https://doi.org/10.14219/jada.archive.1971.0018
  3. Krejci I, Lutz F, Reimer M, Heinzmann JL. Wear of ceramic inlays. their enamel antagonists, and luting cements. J Prosthet Dent 1993:69:425-30 https://doi.org/10.1016/0022-3913(93)90192-Q
  4. Ratledge DK, Smith BGN, Wilson RF. The effect of restorative materials on the wear of human enamel. J Prosthet Dent 1994:72:194-203 https://doi.org/10.1016/0022-3913(94)90080-9
  5. Touati B, Adian N. Second generation laboratory composite resins for indirect restorations. J Esthet Dent 1997:9:108-18 https://doi.org/10.1111/j.1708-8240.1997.tb00928.x
  6. Staffanou RS, Hembree JH Jr, Rivers JA, Myers ML. Abrasion resistance of three types of esthetic veneering materials. J Prosthet Dent 1985:53:309-10 https://doi.org/10.1016/0022-3913(85)90498-6
  7. Ameye C, Lambrechts P, Vanherle G. Conventional and microfilled composite resins. Part I: color and marginal adaptation. J Prosthet Dent 1981:46:623-30 https://doi.org/10.1016/0022-3913(81)90068-8
  8. Kakaboura A, Rahiotis C. Zinelis S, AI-Dhamadi YA, Silikas N, Watts DC. In vitro characterization of two laboratory-processed resin composites. Dent Mater 2003:19:393-98 https://doi.org/10.1016/S0109-5641(02)00082-9
  9. Tanoue N, Matsumura H, Atsuta M. Wear and surface roughness of current prosthetic composites after toothbrush/dentifrice abrasion. J Prosthet Dent 2000:84:93-6 https://doi.org/10.1067/mpr.2000.107560
  10. Mandikos MN, McGivney GP, Davis E, Bush PJ, Carter JM. A comparison of the wear resistance and hardness of indirect composite resins. J Prosthet Dent 2001:85:386-95 https://doi.org/10.1067/mpr.2001.114267
  11. Lambrechts P, Bream M. Quantitative in vivo wear of human enamel. J Dent Res 1989:68:1752-54 https://doi.org/10.1177/00220345890680120601
  12. Carlsson GE, Johansson A, Lundqvist S, Occlusal wear. A follow-up study of 18 subjects with extensively worn dentitions. Acta Odontol Scand 1985:43:83-90 https://doi.org/10.3109/00016358509046491
  13. Lavelle CLB. Analysis of attrition in adult human molars. J Dent Res 1969:49:822-8
  14. Sulong MZAM. Aziz RA. Wear of materials used in dentistry: A review of the literature. J Prosthet Dent 1990:63:342-9 https://doi.org/10.1016/0022-3913(90)90209-U
  15. Mair LH. Stolarski TA. Lloyd CH. Wear: Mechanisms. manifestations and measurement. Report of a work-shop. J Dent 1996:24:141-8 https://doi.org/10.1016/0300-5712(95)00043-7
  16. Nagarajan VS. Jahanmir S. Thompson VP. In vitro contact wear of dental composites. Dent Mater 2004:20:63-71 https://doi.org/10.1016/S0109-5641(03)00069-1
  17. Magne P, Oh WS, Pintado MR, DeLong R. Wear of enamel and veneering ceramics after laboratory and chairside finishing procedures. J Prosthet Dent 1999:82:669-79 https://doi.org/10.1016/S0022-3913(99)70008-9
  18. Al-Hiyasat AS, Saunders WP, Sharkey SW, Smith GMcR, Gilmour WH. Investigation of human enamel wear against four dental ceramics and gold. J Dent 1998:26:487-95 https://doi.org/10.1016/S0300-5712(97)00041-9
  19. Pintado MR, Anderson GC, DeLong R, Douglas WH. Variation in tooth wear in young adults over a two-year period. J Prosthet Dent 1997:77:313-20 https://doi.org/10.1016/S0022-3913(97)70189-6
  20. Condon JR, Ferracane JL. In vitro wear of composite with varied cure. filler level, and filler treatment. J Dent Res 1997:76:1405-11 https://doi.org/10.1177/00220345970760071101
  21. Callaghan DJ, Vaziri A. Nayeb-Hashemi H. Effect of fiber volume fraction and length on the wear charatcteristics of glass fiber-reinforced dental composites. Dent Mater 2006:22:84-93 https://doi.org/10.1016/j.dental.2005.02.011
  22. Cohring TN, Besek MJ, Schmidlin PR. Attritional wear and abrasive surface alterations of composite resin materials in vitro. J Dent 2002:30:119-27 https://doi.org/10.1016/S0300-5712(02)00007-6
  23. De Gee AJ, Pallav P, Davidson CL. Effect of abrasion medium on wear of stress-bearing composites and amalgam in vitro. J Dent Res 1986:65:654-58 https://doi.org/10.1177/00220345860650050401
  24. Lutz F, Phillips RW. A classification and evaluation of composite resin systems, J Prosthet Dent 1983:50:480-8 https://doi.org/10.1016/0022-3913(83)90566-8