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AIMS Biophysics

2024, Volume 11, Issue 3: 370-377. doi: 10.3934/biophy.2024020
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Research article

Advancement in orthodontic bonding: comparing 1-second and 5-second light emitting diode (LED) curing lights

  • 1.
    Professor & Head, Department of Orthodontics & Dentofacial Orthopedics, Kamineni Institute of Dental Sciences, Narketpally. Telangana state, India
  • 2.
    Former Resident, Department of Orthodontics & Dentofacial Orthopedics, Kamineni Institute of Dental Sciences, Narketpally. Telangana state, India
  • 3.
    Professor, Department of Orthodontics & Dentofacial Orthopedics, Kamineni Institute of Dental Sciences, Narketpally. Telangana state, India
  • 4.
    Professor, Dept. of Orthodontics & Dentofacial Orthopedics, The Oxford Dental College, Bangalore, India
  • 5.
    Reader, Department of Orthodontics & Dentofacial Orthopedics, Kamineni Institute of Dental Sciences, Narketpally. Telangana state, India
  • 6.
    Senior Lecturer, Department of Orthodontics & Dentofacial Orthopedics, Kamineni Institute of Dental Sciences, Narketpally. Telangana state, India
  • 7.
    Assistant Professor, Dept of Orthodontics & Dentofacial Orthopedics, Rasal Khaimah College of Dental Sciences, RAK Medical & Health Sciences University, Ras Al Khaimah, United Arab Emirates (UAE)
  • Received: 13 July 2024 Revised: 09 September 2024 Accepted: 20 September 2024 Published: 25 September 2024

  • Recent advancements in dentistry have introduced new light-curing units such as 1-second and 5-second LED curing lights to orthodontics. We aimed to evaluate the shear bond strength and Adhesive Remnant Index (ARI) of stainless-steel orthodontic brackets cured with 1-second, and 5-second LED curing lights. Ninety human extracted upper premolars were selected based on the inclusion and exclusion criteria. The selected teeth were randomly divided into 2 groups - Group I and Group II. In Group I, the teeth were bonded with Standard pre-adjusted edgewise upper premolar brackets (Orthox, JJ Orthodontics) using Transbond XT and cured with Woodpecker iLED 1-second curing light. In Group II, the same brackets and composite were used to bond and light-cure with 5-seconds Woodpecker LED-D unit. The shear bond strength and the Adhesive Remnant Index (ARI) of brackets in both groups were evaluated. Student t-test was used for the statistical analysis of the data. In Group-I (1-second LED curing light), the shear bond strength was 6.62 MPa, whereas it was 10.32 MPa in group II (5-second LED curing light). A highly significant difference was observed in the shear bond strength between the groups. The ARI scores further revealed that the 5-second curing light resulted in a safer failure mode, with adhesive remaining mostly on the bracket. We found that the 5-second Woodpecker LED-D curing light demonstrated higher shear bond strength compared to the 1-second iLED curing light, although both sets of bond strength values are clinically acceptable.

    Citation: Praveen Kumar Neela, Prathyusha Dasari, Pavan Kumar Mamillapalli, Mahamad Irfanulla Khan A N, Udayini Monica, Naresh Mangalapu, Shahistha Parveen Dasnadi. Advancement in orthodontic bonding: comparing 1-second and 5-second light emitting diode (LED) curing lights[J]. AIMS Biophysics, 2024, 11(3): 370-377. doi: 10.3934/biophy.2024020

    Related Papers:

  • Recent advancements in dentistry have introduced new light-curing units such as 1-second and 5-second LED curing lights to orthodontics. We aimed to evaluate the shear bond strength and Adhesive Remnant Index (ARI) of stainless-steel orthodontic brackets cured with 1-second, and 5-second LED curing lights. Ninety human extracted upper premolars were selected based on the inclusion and exclusion criteria. The selected teeth were randomly divided into 2 groups - Group I and Group II. In Group I, the teeth were bonded with Standard pre-adjusted edgewise upper premolar brackets (Orthox, JJ Orthodontics) using Transbond XT and cured with Woodpecker iLED 1-second curing light. In Group II, the same brackets and composite were used to bond and light-cure with 5-seconds Woodpecker LED-D unit. The shear bond strength and the Adhesive Remnant Index (ARI) of brackets in both groups were evaluated. Student t-test was used for the statistical analysis of the data. In Group-I (1-second LED curing light), the shear bond strength was 6.62 MPa, whereas it was 10.32 MPa in group II (5-second LED curing light). A highly significant difference was observed in the shear bond strength between the groups. The ARI scores further revealed that the 5-second curing light resulted in a safer failure mode, with adhesive remaining mostly on the bracket. We found that the 5-second Woodpecker LED-D curing light demonstrated higher shear bond strength compared to the 1-second iLED curing light, although both sets of bond strength values are clinically acceptable.



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    Acknowledgments


    The authors wish to express their gratitude to the MSME Testing Station, Hyderabad, India, for providing the research facilities and technical support essential for the completion of this study.

    Conflict of interest


    All authors declare no conflicts of interest in this paper.

    Author contributions


    Praveen Kumar Neela conceptualized the study, designed the methodology, conducted data analysis, and contributed to writing and revising the manuscript. Prathyusha Dasari assisted with the literature review, performed experiments, collected data, and manuscript preparation. Pavan Kumar Mamillapalli supported data collection and statistical analysis. Mahamad Irfanulla Khan A N analyzed the data, prepared the manuscript and tables, and participated in revisions and proofreading. Udayini Monica conducted fieldwork and gathered relevant data. Naresh Mangalapu coordinated research activities and ensured compliance with ethical standards. Shahistha Parveen Dasnadi provided critical insights during the review process and edited the manuscript.

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