Soni Shashank, Shree Richa, Patri Vijeta, Jasoria Gaurav, Singh Sapana, Kushwah Ashish
Senior Lecturer, Department of Orthodontics and Dentofacial Orthpaedics, Peoples Dental Academy, Bhopal Madhya Pradesh, India.
Reader, Department of Orthodontics and Dentofacial Orthpaedics, Buddha Institute of Dental Sciences and Hospital, Patna, Bihar, India.
J Orthod Sci. 2023 Mar 18;12:20. doi: 10.4103/jos.jos_83_22. eCollection 2023.
To evaluate and compare the shear bond strength of stainless-steel brackets using three different light curing units.
Using three LED curing units (3M ESPE Elipar, Ivoclar bluephase, and Woodpecker I LED light cure), 120 precoated metal brackets (Gemini series, 3M Unitek) were cured. The shear bond strength was recorded using a universal testing machine.
The shear strength of the bracket in different light-curing systems was examined with ANOVA test. The mean shear strength of group A, group B, and group C were 16.03 ± 14.30 MPA, 16.86 ± 11.89 MPA, and 20.51 ± 19.40, respectively. The result of the analysis shows that there is a major difference in shear bond strength of these three different light-curing systems with F value = 3.94 and value 0.04.
We used three LED light-curing units with different intensities and manufacturing companies. The result showed that woodpecker I LED light had significantly highest mean SBS than the other two (Elipar LED curing light and 3M ESPE, Ivoclar bluephase).
使用三种不同的光固化机评估和比较不锈钢托槽的剪切粘结强度。
使用三种LED固化机（3M ESPE Elipar、Ivoclar bluephase和啄木鸟I型LED光固化机）对120个预涂金属托槽（Gemini系列，3M Unitek）进行固化。使用万能试验机记录剪切粘结强度。
采用方差分析检验不同光固化系统中托槽的剪切强度。A组、B组和C组的平均剪切强度分别为16.03±14.30兆帕、16.86±11.89兆帕和20.51±19.40。分析结果表明，这三种不同光固化系统的剪切粘结强度存在显著差异，F值=3.94，P值=0.04。
我们使用了三种强度不同且来自不同制造公司的LED光固化机。结果表明，啄木鸟I型LED光的平均剪切粘结强度显著高于其他两种（Elipar LED固化灯和3M ESPE、Ivoclar bluephase）。
