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Assessment of the radiant emittance of damaged/contaminated dental light-curing tips by spectrophotometric methods

  • Abdulrahman A. Balhaddad (Dental Biomedical Sciences PhD Program, University of Maryland School of Dentistry) ;
  • Isadora Garcia (Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul) ;
  • Fabricio Collares (Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul) ;
  • Cristopher M. Felix (BlueLight Analytics Company) ;
  • Nisha Ganesh (Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry) ;
  • Qoot Alkabashi (Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry) ;
  • Ward Massei (Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry) ;
  • Howard Strassler (Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry) ;
  • Mary Anne Melo (Dental Biomedical Sciences PhD Program, University of Maryland School of Dentistry)
  • Received : 2020.04.07
  • Accepted : 2020.06.09
  • Published : 2020.11.30

Abstract

Objectives: This study investigated the effects of physically damaged and resin-contaminated tips on radiant emittance, comparing them with new undamaged, non-contaminated tips using 3 pieces of spectrophotometric laboratory equipment. Materials and Methods: Nine tips with damage and/or resin contaminants from actual clinical situations were compared with a new tip without damage or contamination (control group). The radiant emittance was recorded using 3 spectrophotometric methods: a laboratory-grade thermopile, a laboratory-grade integrating sphere, and a portable light collector (checkMARC). Results: A significant difference between the laboratory-grade thermopile and the laboratory-grade integrating sphere was found when the radiant emittance values of the control or damaged/contaminated tips were investigated (p < 0.05), but both methods were comparable to checkMARC (p > 0.05). Regardless of the method used to quantify the light output, the mean radiant emittance values of the damaged/contaminated tips were significantly lower than those of the control (p < 0.05). The beam profile of the damaged/contaminated tips was less homogeneous than that of the control. Conclusions: Damaged/contaminated tips can reduce the radiant emittance output and the homogeneity of the beam, which may affect the energy delivered to composite restorations. The checkMARC spectrophotometer device can be used in dental offices, as it provided values close to those produced by a laboratory-grade integrated sphere spectrophotometer. Dentists should assess the radiant emittance of their light-curing units to ensure optimal curing in photoactivated, resin-based materials.

Keywords

Acknowledgement

The authors thank Blue Light Analytics for supplying the devices used in this work. AA acknowledges a scholarship from the Imam AbdulRahman bin Faisal University, Dammam, Saudi Arabia. IMG recognizes a scholarship from Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES)-Finance Code 001-scholarship.

References

  1. Chan KHS, Mai Y, Kim H, Tong KCT, Ng D, Hsiao JCM. Review: resin composite filling. Materials (Basel) 2010;3:1228-1243.
  2. Balhaddad AA, Kansara AA, Hidan D, Weir MD, Xu HHK, Melo MAS. Toward dental caries: exploring nanoparticle-based platforms and calcium phosphate compounds for dental restorative materials. Bioact Mater 2018;4:43-55.
  3. World Health Organization. Oral health surveys: basic methods. 3rd ed. Geneva: World Health Organization; 1987.
  4. Gordan VV, Riley JL 3rd, Rindal DB, Qvist V, Fellows JL, Dilbone DA, Brotman SG, Gilbert GH; National Dental Practice-Based Research Network Collaborative Group. Repair or replacement of restorations: a prospective cohort study by dentists in the National Dental Practice-Based Research Network. J Am Dent Assoc 2015;146:895-903.
  5. David JR, Gomes OM, Gomes JC, Loguercio AD, Reis A. Effect of exposure time on curing efficiency of polymerizing units equipped with light-emitting diodes. J Oral Sci 2007;49:19-24.
  6. Santini A, Gallegos IT, Felix CM. Photoinitiators in dentistry: a review. Prim Dent J 2013;2:30-33.
  7. Samaha S, Bhatt S, Finkelman M, Papathanasiou A, Perr y R, Strassler H, Kugel G, Garcia-Godoy F, Price R. Effect of instruction, light curing unit, and location in the mouth on the energy delivered to simulated restorations. Am J Dent 2017;30:343-349.
  8. Price RB, Ferracane JL, Shortall AC. Light-curing units: a review of what we need to know. J Dent Res 2015;94:1179-1186.
  9. Maktabi H, Balhaddad AA, Alkhubaizi Q, Strassler H, Melo MAS. Factors influencing success of radiant exposure in light-curing posterior dental composite in the clinical setting. Am J Dent 2018;31:320-328.
  10. AlShaafi MM. Factors affecting polymerization of resin-based composites: a literature review. Saudi Dent J 2017;29:48-58.
  11. Rueggeberg FA, Giannini M, Arrais CAG, Price RBT. Light curing in dentistry and clinical implications: a literature review. Braz Oral Res 2017;31:e61.
  12. Maktabi H, Ibrahim M, Alkhubaizi Q, Weir M, Xu H, Strassler H, Fugolin APP, Pfeifer CS, Melo MAS. Underperforming light curing procedures trigger detrimental irradiance-dependent biofilm response on incrementally placed dental composites. J Dent 2019;88:103110.
  13. Alshaafi MM. Evaluation of light-curing units in rural and urban areas. Saudi Dent J 2012;24:163-167.
  14. Price RBT, Ehrnford L, Andreou P, Felix CA. Comparison of quartz-tungsten-halogen, light-emitting diode, and plasma arc curing lights. J Adhes Dent 2003;5:193-207.
  15. Vandenbulcke JDE, Marks LAM, Martens LC, Verbeeck RMH. Comparison of curing depth of a colored polyacid-modified composite resin with different light-curing units. Quintessence Int 2010;41:787-794.
  16. Maghaireh GA, Alzraikat H, Taha NA. Assessing the irradiance delivered from light-curing units in private dental offices in Jordan. J Am Dent Assoc 2013;144:922-927.
  17. Barghi N, Fischer DE, Pham T. Revisiting the intensity output of curing lights in private dental offices. Compend Contin Educ Dent 2007;28:380-384.
  18. Santos GC Jr, Santos MJMC, El-Mowafy O, El-Badrawy W. Intensity of quartz-tungsten-halogen light polymerization units used in dental offices in Brazil. Int J Prosthodont 2005;18:434-435.
  19. Nassar HM, Ajaj R, Hasanain F. Efficiency of light curing units in a government dental school. J Oral Sci 2018;60:142-146.
  20. Al Shaafi M, Maawadh A, Al Qahtani M. Evaluation of light intensity output of QTH and LED curing devices in various governmental health institutions. Oper Dent 2011;36:356-361.
  21. El-Mowafy O, El-Badrawy W, Lewis DW, Shokati B, Kermalli J, Soliman O, Encioiu A, Zawi R, Rajwani F, Rajwani F. Intensity of quartz-tungsten-halogen light-curing units used in private practice in Toronto. J Am Dent Assoc 2005;136:766-773.
  22. Jandt KD, Mills RW, Blackwell GB, Ashworth SH. Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs). Dent Mater 2000;16:41-47.
  23. Shortall AC, Price RB, MacKenzie L, Burke FJT. Guidelines for the selection, use, and maintenance of LED light-curing units - part II. Br Dent J 2016;221:551-554.
  24. International Organization for Standardization. ISO 10650-2. Dentistry-powered polymerization activators-part 2: light-emitting diode (LED) lamps. Geneva: International Organization for Standardization; 2007.
  25. Shortall AC, Felix CJ, Watts DC. Robust spectrometer-based methods for characterizing radiant exitance of dental LED light curing units. Dent Mater 2015;31:339-350.
  26. Marovic D, Matic S, Kelic K, Klaric E, Rakic M, Tarle Z. Time dependent accuracy of dental radiometers. Acta Clin Croat 2013;52:173-180.
  27. Kameyama A, Haruyama A, Asami M, Takahashi T. Effect of emitted wavelength and light guide type on irradiance discrepancies in hand-held dental curing radiometers. ScientificWorldJournal 2013;2013:647941.
  28. Price RB, Labrie D, Kazmi S, Fahey J, Felix CM. Intra- and inter-brand accuracy of four dental radiometers. Clin Oral Investig 2012;16:707-717.
  29. Michaud PL, Price RBT, Labrie D, Rueggeberg FA, Sullivan B. Localised irradiance distribution found in dental light curing units. J Dent 2014;42:129-139.
  30. Harlow JE, Sullivan B, Shortall AC, Labrie D, Price RB. Characterizing the output settings of dental curing lights. J Dent 2016;44:20-26.
  31. Shimokawa CAK, Harlow JE, Turbino ML, Price RB. Ability of four dental radiometers to measure the light output from nine curing lights. J Dent 2016;54:48-55.
  32. Konerding KL, Heyder M, Kranz S, Guellmar A, Voelpel A, Watts DC, Jandt KD, Sigusch BW. Study of energy transfer by different light curing units into a class III restoration as a function of tilt angle and distance, using a MARC patient simulator (PS). Dent Mater 2016;32:676-686.
  33. Soares CJ, Rodrigues MP, Oliveira LRS, Braga SSL, Barcelos LM, Silva GR, Giannini M, Price RB. An evaluation of the light output from 22 contemporary light curing units. Braz Dent J 2017;28:362-371.
  34. Price RBT, Labrie D, Rueggeberg FA, Felix CM. Irradiance differences in the violet (405 nm) and blue (460 nm) spectral ranges among dental light-curing units. J Esthet Restor Dent 2010;22:363-377.
  35. Price RBT, Rueggeberg FA, Labrie D, Felix CM. Irradiance uniformity and distribution from dental light curing units. J Esthet Restor Dent 2010;22:86-101.
  36. Rueggeberg FA, Caughman WF, Curtis JW Jr. Effect of light intensity and exposure duration on cure of resin composite. Oper Dent 1994;19:26-32.
  37. Al-Zain AO, Eckert GJ, Lukic H, Megremis S, Platt JA. Polymerization pattern characterization within a resin-based composite cured using different curing units at two distances. Clin Oral Investig 2019;23:3995-4010.
  38. Eshmawi YT, Al-Zain AO, Eckert GJ, Platt JA. Variation in composite degree of conversion and microflexural strength for different curing lights and surface locations. J Am Dent Assoc 2018;149:893-902.
  39. Yeh CL, Miyagawa Y, Powers JM. Optical properties of composites of selected shades. J Dent Res 1982;61:797-801.
  40. International Organization for Standardization. ISO 10650-1. Dentistry-powered polymerization activators-part 1: quartz tungsten halogen lamps. Geneva: International Organization for Standardization; 2004.
  41. Arikawa H, Kanie T, Fujii K, Takahashi H, Ban S. Effect of inhomogeneity of light from light curing units on the surface hardness of composite resin. Dent Mater J 2008;27:21-28.
  42. Rueggeberg FA. State-of-the-art: dental photocuring--a review. Dent Mater 2011;27:39-52.
  43. Price RB, Shortall AC, Palin WM. Contemporary issues in light curing. Oper Dent 2014;39:4-14.
  44. Khode RT, Shenoi PR, Kubde RR, Makade CS, Wadekar KD, Khode PT. Evaluation of effect of different disposable infection control barriers on light intensity of light-curing unit and microhardness of composite - an in vitro study. J Conser v Dent 2017;20:180-184.