DOI QR코드

DOI QR Code

Penetration and Microleakage Assessment of Flowable Resin Applied on Carious Fissure Following Various Fissurotomy Techniques

교합면 우식열구에서 열구성형술 방법에 따른 유동성 레진의 침투도와 미세누출 평가

  • Kwon, Seok (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Lee, Sangho (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Lee, Nanyoung (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Jih, Meongkwan (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Yoon, Youngmi (Graduate School of Dentistry, Chosun university)
  • 권세옥 (조선대학교 치의학전문대학원 소아치과학교실) ;
  • 이상호 (조선대학교 치의학전문대학원 소아치과학교실) ;
  • 이난영 (조선대학교 치의학전문대학원 소아치과학교실) ;
  • 지명관 (조선대학교 치의학전문대학원 소아치과학교실) ;
  • 윤영미 (조선대학교 대학원 치의학과)
  • Received : 2017.09.01
  • Accepted : 2017.09.22
  • Published : 2018.02.28

Abstract

The purpose of this study was to evaluate the effect of fissurotomy on the penetration and microleakage of flowable resins for carious fissures. A total of 250 extracted premolars with early fissure caries were selected and divided into five groups according to the fissurotomy; no fissurotomy (n = 50), fissurotomy with $Fissurotomy^{(R)}$ original bur (n = 50), fissurotomy with $Fissurotomy^{(R)}$ Miro NTF bur (n = 50), fissurotomy with SF104R tapered diamond bur (n = 50), fissurotomy with 1/2 round carbide bur (n = 50). Two types of flowable resins ($UniFil^{(R)}Flow$, $Filtek^{(R)}Flow$) were used as sealing materials. All samples were sectioned and observed using a stereoscopic microscope after thermocycling and immersing in methylene blue solution. The adaptation of flowable resin to the fissure wall was observed using scanning electron microscopy. The penetration of flowable resin into the carious fissure was significantly increased by fissurotomy, which also decreased microleakage. Fissure preparation using different burs showed a significantly different in penetration, but did not show any difference in microleakage. $Unifil^{(R)}Flow$ showed better penetration than $Filtek^{(R)}Flow$, but there was no significant difference in microleakage. Fissurotomy can be used to increase the penetration of flowable resin into carious fissures and decrease microleakage.

본 연구의 목적은 교합면 우식열구에서 열구성형술이 유동성 레진의 침투와 미세누출에 미치는 영향을 평가하는데 있다. 교합면 우식증이 있는 발거된 소구치 250개를 대상으로 열구 성형술을 시행하지 않는 군을 대조군(n = 50), 열구성형술을 시행한 군을 실험군으로 하였으며, 실험군은 $Fissurotomy^{(R)}$ original bur (n = 50), $Fissurotomy^{(R)}$ Miro NTF bur (n = 50), SF104R tapered diamond bur (n = 50), 1/2 round carbide bur (n = 50) 등 4가지 유형의 bur를 이용하여 열구성형술을 시행한 후 2가지 종류의 유동성 레진($UniFil^{(R)}Flow$, $Filtek^{(R)}Flow$)을 적용하고 침투도와 미세누출의 평가를 통하여 전색효과를 비교하였다. 열구성형술을 시행한 군이 시행하지 않은 대조군에 비해 침투도가 컸으며 미세누출은 적었다. 1/2 round bur를 사용하여 열구성형술을 시행한 군이 다른 bur를 사용한 군에 비해 유동성 레진의 열구내로의 침투도는 높았으나 미세누출은 차이가 없었다. 유동성 레진의 종류($Unifil^{(R)}Flow$$Filtek^{(R)}Flow$)에 따른 침투도의 차이는 있었으나 미세누출은 차이가 없었다.

Keywords

References

  1. Frencken JE, Peters MC, Eden E, et al . : Minimal intervention dentistry for managing dental caries - a review : report of a FDI task group. Int Dent J , 62:223-243, 2012. https://doi.org/10.1111/idj.12007
  2. Holmgren C, Gaucher C, Decerle N, Domejean S : Minimal intervention dentistry II: part 3. Management of noncavitated (initial) occlusal caries lesions--non-invasive approaches through remineralisation and therapeutic sealants. Br Dent J , 216:237-243, 2014. https://doi.org/10.1038/sj.bdj.2014.147
  3. Nagano T : The form of pit and fissure and the primary lesion of caries. Dent Abstract , 6:426, 1960.
  4. Feldens EG, Feldens CA, de Araujo FB, et al . : Invasive technique of pit and fissure sealants in primary molars: a SEM study. J Clin Peiatr Dent , 18:187-190, 1994.
  5. Khanna R, Pandey RK, Singh N, Agarwal A : A comparison of enameloplasty sealant technique with conventional sealant technique: a scanning electron microscope study. J Indian Soc Pedod Prev Dent , 27:158-163, 2009. https://doi.org/10.4103/0970-4388.57096
  6. Bagherian A, Akbari M, Rezaeian M, Ansari G : Microleakage assessment of fissure sealant following fissurotomy bur or pumice prophylaxis use before etching. Dent Res J (Isfahan) , 10:643-646, 2013.
  7. Chaitra TR, Subba RV, Devarasa GM, Ravishankar TL : Flowable resin used as a sealant in molars using conventional, enameloplasty and fissurotomy techniques: an in vitro study. J Indian Soc Pedod Prev Dent , 28:145-150, 2010. https://doi.org/10.4103/0970-4388.73786
  8. Nahid A, Zahra BG, Yasaman R : Evaluation of the effect of enamel preparation on retention rate of fissure sealant. Contemp Clin Dent, 3:380-382, 2012. https://doi.org/10.4103/0976-237X.107418
  9. Beauchamp J, Caufield PW, Crall JJ, et al . : Evidence-based clinical recommendations for the use of pit-and-fissure sealants: a report of the American Dental Association Council on Scientific Affairs. J Am Dent Assoc , 139:257-268, 2008. https://doi.org/10.14219/jada.archive.2008.0155
  10. Borges BC, de Souza Borges J, Braz R, et al . : Arrest of noncavitated dentinal occlusal caries by sealing pits and fissures: a 36-month, randomised controlled clinical trial. Int Dent J , 62:251-255, 2012. https://doi.org/10.1111/j.1875-595X.2012.00117.x
  11. Zhang Z, Zheng K, Li E, et al . : Mechanical benefits of conservative restoration for dental fissure caries. J Mech Behav Biomed Mater , 53:11-20, 2016. https://doi.org/10.1016/j.jmbbm.2015.08.010
  12. Celiberti P, Lussi A : Penetration ability and microleakage of a fissure sealant applied on artificial and natural enamel fissure caries. J Dent , 35:59-67, 2007. https://doi.org/10.1016/j.jdent.2006.04.007
  13. Hesse D, Bonifacio CC, Mendes FM, et al . : Sealing versus partial caries removal in primary molars: a randomized clinical trial. BMC Oral Health , 28:14-58, 2014.
  14. Lowe RA : Fissurotomy and flowable composite resin: a new standard for the restoration of pit and fissure decay. Dent Today , 20:66-71, 2001.
  15. Hevinga MA, Opdam NJ, Frencken JE, et al . : Microleakage and sealant penetration in contaminated carious fissures. J Dent , 35:909-914, 2007. https://doi.org/10.1016/j.jdent.2007.09.001
  16. Loyola-Rodriguez JP, Mendoza-Razo V, Rodriguez-Juarez F, Campos-Cambranis R : Flowable resin used as a sealant in molars affected by dental fluorosis: a comparative study. J Clin Pediatr Dent , 30:39-43, 2005.
  17. Chaitra TR, Subba RV, Devarasa GM, Ravishankar TL : Microleakage and SEM analysis of flowable resin used as a sealant following three fissure preparation techniques--an in vitro study. J Clin Pediatr Dent , 35:277-282, 2011. https://doi.org/10.17796/jcpd.35.3.7x217772q7146288
  18. Zervou C, Kugel G, Leone C, et al . : Enameloplasty effects on microleakage of pit and fissure sealants under load: an in vitro study. J Clin Pediatr Dent , 24:279-285, 2000. https://doi.org/10.17796/jcpd.24.4.e491n06064j85285
  19. Sridhar LP Moses J, Rangeeth BN, Sivakumar S : Comparative evaluation of the marginal sealing ability of two commercially available pit and fissure sealants. J Clin Diagn Res , 10:ZC01-ZC04, 2016.
  20. Mehrabkhani M, Mazhari F, Sadeghi S, Ebrahimi M : Effects of sealant, viscosity, and bonding agents on microleakage of fissure sealants: An in vitro study. Eur J Dent , 9 : 558-563, 2015. https://doi.org/10.4103/1305-7456.172631
  21. Burrow MF, Burrow JF, Makinson OF : Pits and fissures: Etch resistance in prismless enamel walls. Aust Dent J , 46:258-262, 2001. https://doi.org/10.1111/j.1834-7819.2001.tb00289.x
  22. Cho TS, Lee SH, Yoon JH, Kim SG : Ultra-structure and etching characteristics of occlusal fissure enamel. J Korean Acad Pediatr Dent , 32:321-331, 2005.
  23. Michalaki MG, Oulis CJ, Lagouvardos P : Microleakage of three different sealants on sound and questionable occlusal surfaces of permanent molars: an in vitro study. Eur Arch Paediatr Dent , 11:26-31, 2010. https://doi.org/10.1007/BF03262706