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Basic Research Effect of infection control barrier thickness on light curing units
Hoon-Sang Chang, DDS, PhD, Seok-Ryun Lee, DDS, Sung-Ok Hong, DDS, MS, Hyun-Wook Ryu, DDS, MS, Chang-Kyu Song, DDS, MS, Kyung-San Min, DDS, PhD
2010;35(5):-373.
DOI: https://doi.org/10.5395/JKACD.2010.35.5.368
Published online: September 30, 2010

Department of Conservative Dentistry, Wonkwang University College of Dentistry and Dental Research Institute, Iksan, Korea.

Correspondence to Hoon-Sang Chang, DDS, PhD. Assistant Professor, Department of Conservative Dentistry, Wonkwang University College of Dentistry and Dental Research Institute, 344-2 Shinyong-dong, Iksan, Korea 570-210. Tel, +82-63-859-2931; Fax, +82-63-859-2932; husch03@wonkwang.ac.kr
• Received: July 29, 2010   • Revised: August 12, 2010   • Accepted: August 26, 2010

Copyright © 2010 Korean Academy of Conservative Dentistry

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  • Objectives
    This study investigated the effect of infection control barrier thickness on power density, wavelength, and light diffusion of light curing units.
  • Materials and Methods
    Infection control barrier (Cleanwrap) in one-fold, two-fold, four-fold, and eight-fold, and a halogen light curing unit (Optilux 360) and a light emitting diode (LED) light curing unit (Elipar FreeLight 2) were used in this study. Power density of light curing units with infection control barriers covering the fiberoptic bundle was measured with a hand held dental radiometer (Cure Rite). Wavelength of light curing units fixed on a custom made optical breadboard was measured with a portable spectroradiometer (CS-1000). Light diffusion of light curing units was photographed with DSLR (Nikon D70s) as above.
  • Results
    Power density decreased significantly as the layer thickness of the infection control barrier increased, except the one-fold and two-fold in halogen light curing unit. Especially, when the barrier was four-fold and more in the halogen light curing unit, the decrease of power density was more prominent. The wavelength of light curing units was not affected by the barriers and almost no change was detected in the peak wavelength. Light diffusion of LED light curing unit was not affected by barriers, however, halogen light curing unit showed decrease in light diffusion angle when the barrier was four-fold and statistically different decrease when the barrier was eight-fold (p < 0.05).
  • Conclusions
    It could be assumed that the infection control barriers should be used as two-fold rather than one-fold to prevent tearing of the barriers and subsequent cross contamination between the patients.
  • Keywords: Infection control barrier; Light diffusion; Peak wavelength; Power density; Radiometer; Spectroradiometer
Figure 1
Wavelength (nm) of LED light curing unit with infection control barriers covering the filberoptic bundle.
jkacd-35-368-g001.jpg
Figure 2
Wavelength (nm) of halogen light curing unit with infection control barriers covering the filberoptic bundle.
jkacd-35-368-g002.jpg
Figure 3
Light diffusion from LED light curing unit with infection control barriers covering the fiberoptic bundle.
jkacd-35-368-g003.jpg
Figure 4
Light diffusion from halogen light curing unit with infection control barriers covering the fiberoptic bundle.
jkacd-35-368-g004.jpg
Table 1
Power density (mW/cm2 ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

jkacd-35-368-i001.jpg
Table 2
Light diffusion (degree ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

jkacd-35-368-i002.jpg
  • 1. Caughman GB, Caughman WF, Napier N, Schuster GS. Disinfection of visible-light-curing devices. Oper Dent. 1989;14(1):2-7.PubMed
  • 2. Kakaboura A, Tzoutzas J, Pitsinigos D, Vougiouklakis G. The effect of sterilization methods on the light transmission characteristics and structure of light-curing tips. J Oral Rehabil. 2004;31: 918-923.ArticlePubMed
  • 3. Rueggeberg FA, Caughman WF, Comer RW. The effect of autoclaving on energy transmission through light-curing tips. J Am Dent Assoc. 1996;127: 1183-1187.ArticlePubMed
  • 4. Nelson SK, Caughman WF, Rueggeberg FA, Lockwood PE. Effect of glutaraldehyde cold sterilants on light transmission of curing tips. Quintessence Int. 1997;28: 725-730.PubMed
  • 5. Chong SL, Lam YK, Lee FKF, Ramalingam L, Yeo ACP, Lim CC. Effect of various infection-control methods for light-cure units on the cure of composite resins. Oper Dent. 1998;23: 150-154.PubMed
  • 6. Pollington S, Kahakachchi N, van Noort R. The Influence of Plastic Light Cure Sheaths on the Hardness of Resin Composite. Oper Dent. 2009;34: 741-745.ArticlePubMedPDF
  • 7. Scott BA, Felix CA, Price RB. Effect of disposable infection control barriers on light output from dental curing lights. J Can Dent Assoc. 2004;70: 105-110.PubMed
  • 8. Fan PL, Schumacher RM, Azzolin K, Geary R, Eichmiller FC. Curing-light intensity and depth of cure of resin-based composites tested according to international standards. J Am Dent Assoc. 2002;133: 429-434.ArticlePubMed
  • 9. Park SM, Shin DH. Microhardness and microleakage of composite resin according to the change of curing light intensity. J Korean Acad Conserv Dent. 2001;26: 363-371.
  • 10. Park JG, Cho BH, Lee IB, Kwon HC, Um CM. The effects of various light intensity on the polymerization of resin composites. J Korean Acad Conserv Dent. 2001;26: 86-94.
  • 11. Shortall AC, Harrington E, Wilson HJ. Light curing unit effectiveness assessed by dental radiometers. J Dent. 1995;23: 227-232.ArticlePubMed
  • 12. Rueggeberg FA. Precision of hand-held dental radiometers. Quintessence Int. 1993;24: 391-396.PubMed
  • 13. Peutzfeldt A. Correlation between recordings obtained with a light-intensity tester and degree of conversion of a light-curing resin. Scand J Dent Res. 1994;102: 73-75.PubMed
  • 14. Kim SY, Lee IB, Cho BH, Son HH, Kim MJ, Seok CI, et al. Dentin bond strength of bonding agents cured with Light Emitting Diode. J Korean Acad Conserv Dent. 2004;29: 504-514.Article
  • 15. Price RB, Derand T, Sedarous M, Andreou P, Loney RW. Effect of distance on the power density from two light guides. J Esthet Dent. 2000;12: 320-327.ArticlePubMed
  • 16. Corciolani G, Vichi A, Davidson CL, Ferrari M. The influence of tip geometry and distance on light-curing efficacy. Oper Dent. 2008;33: 325-331.ArticlePubMedPDF

Tables & Figures

Figure 1
Wavelength (nm) of LED light curing unit with infection control barriers covering the filberoptic bundle.
jkacd-35-368-g001.jpg
Figure 2
Wavelength (nm) of halogen light curing unit with infection control barriers covering the filberoptic bundle.
jkacd-35-368-g002.jpg
Figure 3
Light diffusion from LED light curing unit with infection control barriers covering the fiberoptic bundle.
jkacd-35-368-g003.jpg
Figure 4
Light diffusion from halogen light curing unit with infection control barriers covering the fiberoptic bundle.
jkacd-35-368-g004.jpg
Table 1
Power density (mW/cm2 ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

jkacd-35-368-i001.jpg
Table 2
Light diffusion (degree ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

jkacd-35-368-i002.jpg

REFERENCES

  • 1. Caughman GB, Caughman WF, Napier N, Schuster GS. Disinfection of visible-light-curing devices. Oper Dent. 1989;14(1):2-7.PubMed
  • 2. Kakaboura A, Tzoutzas J, Pitsinigos D, Vougiouklakis G. The effect of sterilization methods on the light transmission characteristics and structure of light-curing tips. J Oral Rehabil. 2004;31: 918-923.ArticlePubMed
  • 3. Rueggeberg FA, Caughman WF, Comer RW. The effect of autoclaving on energy transmission through light-curing tips. J Am Dent Assoc. 1996;127: 1183-1187.ArticlePubMed
  • 4. Nelson SK, Caughman WF, Rueggeberg FA, Lockwood PE. Effect of glutaraldehyde cold sterilants on light transmission of curing tips. Quintessence Int. 1997;28: 725-730.PubMed
  • 5. Chong SL, Lam YK, Lee FKF, Ramalingam L, Yeo ACP, Lim CC. Effect of various infection-control methods for light-cure units on the cure of composite resins. Oper Dent. 1998;23: 150-154.PubMed
  • 6. Pollington S, Kahakachchi N, van Noort R. The Influence of Plastic Light Cure Sheaths on the Hardness of Resin Composite. Oper Dent. 2009;34: 741-745.ArticlePubMedPDF
  • 7. Scott BA, Felix CA, Price RB. Effect of disposable infection control barriers on light output from dental curing lights. J Can Dent Assoc. 2004;70: 105-110.PubMed
  • 8. Fan PL, Schumacher RM, Azzolin K, Geary R, Eichmiller FC. Curing-light intensity and depth of cure of resin-based composites tested according to international standards. J Am Dent Assoc. 2002;133: 429-434.ArticlePubMed
  • 9. Park SM, Shin DH. Microhardness and microleakage of composite resin according to the change of curing light intensity. J Korean Acad Conserv Dent. 2001;26: 363-371.
  • 10. Park JG, Cho BH, Lee IB, Kwon HC, Um CM. The effects of various light intensity on the polymerization of resin composites. J Korean Acad Conserv Dent. 2001;26: 86-94.
  • 11. Shortall AC, Harrington E, Wilson HJ. Light curing unit effectiveness assessed by dental radiometers. J Dent. 1995;23: 227-232.ArticlePubMed
  • 12. Rueggeberg FA. Precision of hand-held dental radiometers. Quintessence Int. 1993;24: 391-396.PubMed
  • 13. Peutzfeldt A. Correlation between recordings obtained with a light-intensity tester and degree of conversion of a light-curing resin. Scand J Dent Res. 1994;102: 73-75.PubMed
  • 14. Kim SY, Lee IB, Cho BH, Son HH, Kim MJ, Seok CI, et al. Dentin bond strength of bonding agents cured with Light Emitting Diode. J Korean Acad Conserv Dent. 2004;29: 504-514.Article
  • 15. Price RB, Derand T, Sedarous M, Andreou P, Loney RW. Effect of distance on the power density from two light guides. J Esthet Dent. 2000;12: 320-327.ArticlePubMed
  • 16. Corciolani G, Vichi A, Davidson CL, Ferrari M. The influence of tip geometry and distance on light-curing efficacy. Oper Dent. 2008;33: 325-331.ArticlePubMedPDF

Citations

Citations to this article as recorded by  
  • Light curing infection control barriers: do some types jeopardize the concept of conventional bulk-fill composites?
    Dalia I. Sherief, Mohamed M. Kandil, Dina Ahmed El-Refai
    BMC Oral Health.2024;[Epub]     CrossRef
  • Effects of Infection Control Barriers on Light Output from a Dental Light-Curing Unit Used in Various Positions
    Jitte van der Zee, Andrew Tawse-Smith, Sunyoung Ma
    Oral.2023; 3(2): 166.     CrossRef
  • Evaluation of irradiance and spectral output of visible light curing units used in the laboratory
    Yoorina Choi, Su-Beom Choi, Ji-Hye Jung, Hoon-Sang Chang
    Oral Biology Research.2021; 45(4): 201.     CrossRef
  • The Effectiveness of Clinical Sterilization Methods in Dental Air/water Syringes
    Seyoung Shin, Yeonmi Yang, Miah Kim, Jaegon Kim, Byeongju Baik
    THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2013; 40(4): 268.     CrossRef
  • Power density of various light curing units through resin inlays with modified layer thickness
    Sung-Ok Hong, Yonghui Oh, Jeong-Bum Min, Jin-Woo Kim, Bin-Na Lee, Yun-Chan Hwang, In-Nam Hwang, Won-Mann Oh, Hoon-Sang Chang
    Restorative Dentistry & Endodontics.2012; 37(3): 130.     CrossRef
  • Effect of a multi-layer infection control barrier on the micro-hardness of a composite resin
    In-Nam Hwang, Sung-Ok Hong, Bin-Na Lee, Yun-Chan Hwang, Won-Mann Oh, Hoon-Sang Chang
    Journal of Applied Oral Science.2012; 20(5): 576.     CrossRef
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    Effect of infection control barrier thickness on light curing units
    J Korean Acad Conserv Dent. 2010;35(5):368-373.   Published online September 30, 2010
    DOI: https://doi.org/10.5395/JKACD.2010.35.5.368
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Effect of infection control barrier thickness on light curing units
Image Image Image Image
Figure 1 Wavelength (nm) of LED light curing unit with infection control barriers covering the filberoptic bundle.
Figure 2 Wavelength (nm) of halogen light curing unit with infection control barriers covering the filberoptic bundle.
Figure 3 Light diffusion from LED light curing unit with infection control barriers covering the fiberoptic bundle.
Figure 4 Light diffusion from halogen light curing unit with infection control barriers covering the fiberoptic bundle.

Figure 1

Figure 2

Figure 3

Figure 4

Effect of infection control barrier thickness on light curing units

Power density (mW/cm2 ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

Light diffusion (degree ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.
Table 1 Power density (mW/cm2 ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

Table 2 Light diffusion (degree ± SD) of light curing units with infection control barriers covering the fiberoptic bundle

* The superscripts with the same letters are not significantly different at α = 0.05.

FL 2: Elipar FreeLight 2, O 360: Optilux 360.

Table 1

Table 2

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