치위생과학회지 (Journal of dental hygiene science)

  • 제23권2호
  • /
  • Pages.123-131
  • /
  • 2023
  • /
  • 1598-4478(pISSN)
  • /
  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지
DOI QR코드

DOI QR Code

Comparison of Surface Microhardness of the Flowable Bulk-Fill Resin and the Packable Bulk-Fill Resin according to Light Curing Time and Distance

  • Hyung-Min Kim (Department of Dental Hygiene, College of Health Science, Eulji University) ;
  • Moon-Jin Jeong (Department of Oral Histology and Developmental Biology, School of Dentistry, Chosun University) ;
  • Hee-Jung Lim (Department of Dental Hygiene, College of Health Science, Eulji University) ;
  • Do-Seon Lim (Department of Dental Hygiene, College of Health Science, Eulji University)
  • 투고 : 2023.05.24
  • 심사 : 2023.06.07
  • 발행 : 2023.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Background: As a restorative material used to treat dental caries, the light-curing type resin is widely used, but it has the disadvantage of polymerization shrinkage. The Bulk-Fill composite resin was developed to solve these shortcomings, but the existing research mainly focused on comparing the physical properties of a composite resin and a Bulk-Fill resin. A study on the light curing time and distance of the Bulk-Fill resin itself tend to be lacking. Methods: This study compares the surface microhardness of specimens prepared by varying the light curing time and distance of smart dentin replacement (SDR) as a flowable Bulk-Fill resin and Tetric N-ceram as a packable Bulk-Fill resin, and confirms the polymerization time and distance that becomes the optimum hardness. To determine the hardness of the specimen, it was measured using the Vickers Hardness Number (Matsuzawa MMT-X, Japan). Results: In SDR, the surface microhardness decreased as the distance increased in all time groups in the change distance from the curing tip. In the change of light curing time with respect to the distance from curing tip, the surface microhardness increased as the time increased. In Tetric N-ceram, the surface microharness showed no significant difference in the change of the distance of curing tip in the group of 20 and 60 second. But in the group of 10 and 40 seconds, decreased as the distance increased. The surface microharness increased as the light curing time increased in all distance groups. Conclusion: When using SDR and Tetric N-ceram in clinical practice, it is considered that as the distance from the polymerization reactor tip increases, a longer light curing time than the polymerization time recommended by the manufacturer is required.

키워드

참고문헌

  1. Jung EJ, Lee HJ, Hur B: Effect of each light curing units on the microhardness and microleakage of composite resin. J Korean Acad Conserv Dent 29: 58-65, 2004. https://doi.org/10.5395/JKACD.2004.29.1.058
  2. Park JK, Lee GH, Kim JH, et al.: Polymerization shrinkage, flexural and compression properties of low-shrinkage dental resin composites. Dent Mater J 33: 104-110, 2014. https://doi.org/10.4012/dmj.2013-126
  3. Koh K, Park JW: Bulk-fill composite resin, can it be used with confidence? J Korean Dent Assoc 57: 162-168,
  4. Noh TH, Song EJ, Park SY, et al.: Comparison of the mechanical properties between Bulk-fill and conventional composites. J Korean Acad Pediatr Dent 43: 365-373, 2016. https://doi.org/10.5933/JKAPD.2016.43.4.365
  5. Kim IY, Kim JM, Jeong TS, Kim S: 5 years evaluation of composite resin restoration on permanent first molar in children. J Korean Acad Pediatr Dent 35: 110-117,
  6. Ilie N, Hickel R: Investigations on a methacrylate-based flowable composite based on the SDR™ technology. Dent Mater 27: 348-355, 2011. https://doi.org/10.1016/j.dental.2010.11.014
  7. Benetti AR, Havndrup-Pedersen C, Honore D, Pedersen MK, Pallesen U: Bulk-fill resin composites: polymerization contraction, depth of cure, and gap formation. Oper Dent 40: 190-200, 2015. https://doi.org/10.2341/13-324-L
  8. Ahn MK, Jeong TS, Kim S: A study on the changes in polymerization of light-activated composite resin with various exposure time and distance. J Korean Acad Pediatr Dent 28: 293-299,
  9. Campos EA, Ardu S, Lefever D, Jasse FF, Bortolotto T, Krejci I: Marginal adaptation of class II cavities restored with bulk-fill composites. J Dent 42: 575-581, 2014. https://doi.org/10.1016/j.jdent.2014.02.007
  10. Van Ende A, De Munck J, Lise DP, Van Meerbeek B: Bulk-fill composites: a review of the current literature. J Adhes Dent 19: 95-109, 2017. https://doi.org/10.3290/j.jad.a38141
  11. Leprince JG, Palin WM, Vanacker J, Sabbagh J, Devaux J, Leloup G: Physico-mechanical characteristics of commercially available bulk-fill composites. J Dent 42: 993-1000, 2014. https://doi.org/10.1016/j.jdent.2014.05.009
  12. Lee HB, Seo HW, Lee JH, Park HW: Evaluation of shear bond strength and microleakage of Bulk-fill resin composites. J Korean Acad Pediatr Dent 42: 281-290, 2015. https://doi.org/10.5933/JKAPD.2015.42.4.281
  13. Alshali RZ, Silikas N, Satterthwaite JD: Degree of conversion of bulk-fill compared to conventional resin-composites at two time intervals. Dent Mater 29: e213-e217, 2013. https://doi.org/10.1016/j.dental.2013.05.011
  14. Jang JH, Park SH, Hwang IN: Polymerization shrinkage and depth of cure of bulk-fill resin composites and highly filled flowable resin. Oper Dent 40: 172-180, 2015. https://doi.org/10.2341/13-307-L
  15. Aguiar FH, Braceiro A, Lima DA, Ambrosano GM, Lovadino JR: Effect of light curing modes and light curing time on the microhardness of a hybrid composite resin. J Contemp Dent Pract 8: 1-8, 2007. https://doi.org/10.5005/jcdp-8-6-1
  16. Bae SY, Lee JW, Ra JY: Evaluation of the changes in polymerization of TheraCal LC with various light-curing time and distance. J Korean Acad Pediatr Dent 46: 392-399, 2019. https://doi.org/10.5933/JKAPD.2019.46.4.392
  17. Lim HN, Kim HC, Park SJ: Studies on the developments of experimental restorative composite resins for dental caries and its compatibility to human tooth substrate. J Korean Res Soc Dent Mater 19: 173-207, 1992.
  18. Knobloch L, Kerby RE, Clelland N, Lee J: Hardness and degree of conversion of posterior packable composites. Oper Dent 29: 642-649, 2004.
  19. Torno V, Soares P, Martin JM, Mazur RF, Souza EM, Vieira S: Effects of irradiance, wavelength, and thermal emission of different light curing units on the Knoop and Vickers hardness of a composite resin. J Biomed Mater Res B Appl Biomater 85: 166-171, 2008. https://doi.org/10.1002/jbm.b.30929
  20. Kurachi C, Tuboy AM, Magalhaes DV, Bagnato VS: Hardness evaluation of a dental composite polymerized with experimental LED-based devices. Dent Mater 17: 309-315, 2001. https://doi.org/10.1016/s0109-5641(00)00088-9
  21. No YM, Shin BS, Kim JS, Yoo SH: Evaluation of microhardness of bulk-base composite resins according to the depth of cure. J Korean Acad Pediatr Dent 44: 335-340, 2017. https://doi.org/10.5933/JKAPD.2017.44.3.335
  22. Cho SK, Kim DJ, Hwang YC, Oh WM, Hwang IN: Surface hardness of the dental composite cured by light that penetrate tooth structure according to thickness of tooth structure, light intensity and curing time. J Korean Acad Conserv Dent 30: 128-137, 2005. https://doi.org/10.5395/JKACD.2005.30.2.128
  23. Lokade J, Rawlani S, Baheti R, Roy S, Chandak M, Lohe V: Morphological measurements of anatomic landmarks in human mandibular molar pulp chambers- an in vivo study. J Korean Dent Sci 4: 1-5, 2011. https://doi.org/10.5856/JKDS.2011.4.1.001
  24. Hwang NM, Tak NH, Kwon JW, Park JS, Sohn MS: Development of shore and Vickers standard hardness block. Ministry of Science and ICT, Gwacheon, pp.1-4, 1993.
  25. Diab R, Yap A, Gonzalez M, Yahya N: Impact of light-curing distance on the effectiveness of cure of bulk-fill resin-based composites. Saudi Dent J 33: 1184-1189, 2021. https://doi.org/10.1016/j.sdentj.2021.01.003
  26. Hasanain FA, Nassar HM, Ajaj RA: Effect of light curing distance on microhardness profiles of bulk-fill resin composites. Polymers 14: 528, 2022. https://doi.org/10.3390/polym14030528
  27. AlShaafi MM, AlQussier A, AlQahtani MQ, Price RB: Effect of mold type and diameter on the depth of cure of three resin-based composites. Oper Dent 43: 520-529, 2018. https://doi.org/10.2341/17-122-L