Evaluating the efficiency of Er,Cr:YSGG laser for recycling of debonded stainless steel orthodontic brackets: an in vitro study

被引：0
作者：
Sedky Y. [1 ]
AbdelHamid M.B. [2 ]
机构：
[1] Faculty of Oral and Dental Medicine, Misr International University, 43D Villa, Cairo, Katameyah Residence
[2] Operative Department, Faculty of Oral and Dental Medicine, Misr International University, Villa 3, Seventh District, Cairo, Obour City
来源：
Lasers in Dental Science | 2021年 / 5卷 / 3期
关键词：
Er; Cr:YSGG laser; Orthodontic brackets; Recycling; Sandblasting; Shear bond strength; Stereomicroscope;
D O I：
10.1007/s41547-021-00136-9
中图分类号：
学科分类号：
摘要：
Aim of the study: The aim of the study is to assess the effectiveness of Er,Cr:YSGG laser therapy as a method for recycling debonded stainless steel orthodontic brackets. Materials and methods: Sixty extracted premolar teeth bonded to stainless steel brackets were tested for rebonded shear bond strength after recycling by three protocols and compared with a control group. These 60 samples were randomized into four groups which were recycled by three protocols, namely, sandblasting, adhesive grinding by tungsten carbide bur, and Er,Cr:YSGG laser (Waterlase, Iplus, Biolase Technology, CA, USA), emitting a wavelength of 2780 nm, with an average power of 5 W; repetition rate, 20 Hz; pulse duration, 60 µs; water, 80%; air, 60%; and the control group where new brackets were used. After recycling, stereomicroscope and shear bond strength analysis were used to analyze the efficiency of the recycling protocols. Results: Laser group showed the highest shear bond strength values. There was no statistically significant difference between bur removal and sandblasting; both showed the lowest values. Conclusions: Er,Cr:YSGG laser was found to be the most efficient protocol for orthodontic brackets recycling. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
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页码：185 / 191
页数：6
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