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

Sedky, Youssef; AbdelHamid, Mohamed Bahgat

doi:10.1007/s41547-021-00136-9

Cited by 3 publications

(5 citation statements)

References 24 publications

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“…(Figure 1). Tip used was 800 μm in diameter (MZ8) until resin composite was completely removed from the fifteen brackets [8]. 3.…”

Section: Methodsmentioning

confidence: 99%

“…The bracket bases were subjected to 50 μm aluminum oxide particles, with a 5 mm distance away from the sandblasting handpiece. Each bracket was sandblasted for 40 s until resin composite was completely removed from the fifteen brackets [8]. Rebonding procedure:…”

Section: Methodsmentioning

confidence: 99%

“…Although dental laser technology is quite expensive, it has been utilised in various dental disciplines that aims to deliver treatment outcomes that are superior to those achieved by conventional approaches [8]. In the course of daily practice, Also, two brackets were debonded from teeth upon loading to the universal testing machine.…”

Section: Numerous Approaches Have Beenmentioning

confidence: 99%

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Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Haggag,

Mohamed Elgameay,

Sedky

et al. 2024

Egyptian Orthodontic Journal

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Objective: The main purpose of the study was to compare the shear bond strength of the rebonded ceramic bracket after using different techniques for removal of the adhesive from the debonded brackets base to find the most favorable method for recycling ceramic brackets. The Research Question of the study was that In recycling of ceramic brackets, would removal of the adhesive from the debonded brackets base using Er,Cr:YSGG laser versus using carbide bur and sandblasting, enhance the shear bond strength of the rebonded ceramic bracket? Materials and Methods: Sixty premolar teeth were randomly divided into 4 equal groups (n = 15) then embedded in resin blocks with their crowns exposed. Sixty upper premolar ceramic orthodontic brackets were used in this study and were divided into 4 equal groups (n = 15) according to different adhesive resin removal protocols; Control Group (New brackets), Laser Group, Sandblast Group, and Handpiece Group. Then ceramic brackets were rebonded and the shear bond strength of the rebonded brackets was evaluated using a universal testing machine. All collected data were statistically analyzed.Results: The highest statistically significant shear bond strength mean value was revealed between control group (13.2302MPa) and handpiece (carbide bur) as it has showed the smallest mean (6.1863MPa). While there was no statistically significant difference between Control group vs Laser group and Sandblast group. Conclusion: Er,Cr:YSGG laser and Sandblasting were efficient for reconditioning of mechanically retentive ceramic brackets.

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“…(Figure 1). Tip used was 800 μm in diameter (MZ8) until resin composite was completely removed from the fifteen brackets [8]. 3.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Numerous Approaches Have Beenmentioning

confidence: 99%

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Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Haggag,

Mohamed Elgameay,

Sedky

et al. 2024

Egyptian Orthodontic Journal

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“…This power analysis used shear bond strength as a primary outcome. The effect size f = (0.528114) was calculated based upon the results of Sedky and Abd Elhamid, 2021 (18) using Alpha level of 5% and Beta level of 80%. The minimum estimated sample size was a total of 54 samples (9 sample per group).…”

Section: Sample Size Calculationmentioning

confidence: 99%

Shear Bond Strength of Orthodontic Brackets Bonded to Bleached Enamel using a Novel PAP-Based Bleaching Agent- An In Vitro Study.

Fayed,

Sedky

2024

Egyptian Dental Journal

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The aim of this study was to evaluate the effect of a novel phthalimidoperoxycaproic acid (PAP) and carbamide peroxide-based bleaching gels on shear bond strength between enamel and resin composite used to bond orthodontic brackets. Materials and Methods:Fifty four human premolars were selected and divided into three equal groups (N=18); Group I (control): unbleached teeth (C), Group II: received carbamide peroxide-based bleaching material (CP) and Group III: received PAP-based bleaching material (PAP). Each group was further subdivided into two equal subgroups according to time of bonding of the orthodontic brackets either immediately after bleaching procedure (IB) or 14 days after bleaching procedure (DB) (n=9/subgroup). According to their assigned subgroups, labial enamel surfaces of teeth were bleached, embedded in acrylic resin blocks and orthodontic brackets were bonded using Transbond XT light cure resin composite (3 M Unitek, Monrovia, CA, USA). Teeth were mounted in a universal testing machine and shear bond strength were measured in MPa. Data were statistically analyzed by two-way ANOVA and Tukey's post hoc significance difference test were used to analyze the data.Results: Two-way ANOVA showed that the two variables in this study had a statistically significant effect on enamel/resin composite shear bond strength, also there was an interaction between the two tested variables.Conclusions: PAP-based bleaching agents may present a safe alternative to free radical-based bleaching agents. Delayed bonding may play a role in improving bonding to bleached enamel.

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“…27 A further benefit of lasers has been costeffectiveness through the possibility of recycling stainless steel orthodontic brackets. 28 To date, few studies are available that have specifically evaluated the enamel surface roughness following the use of Er:YSGG lasers. In addition, there are no previous reports describing the use and enamel effects of WaterLase Biolase ® .…”

Section: Introductionmentioning

confidence: 99%

In vitro evaluation of surface characteristics comparing WaterLase (Biolase^®) with tungsten carbide burs for composite removal: a pilot study

Alkandari

Abela

Booth

et al. 2022

Australasian Orthodontic Journal

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Introduction The present ex-vivo study was designed to evaluate the surface roughness and analyse potential adhesive remnants on the enamel surface after composite removal using either an Er:YSGG WaterLase (WL) (Biolase®, Irvine, CA, USA) or a tungsten carbide (TC) bur (Alston, England, UK). Methods An in vitro study was designed using 21 extracted lower premolars. Pre-coated stainless steel brackets (3M Unitek, Monrovia, CA, USA) were bonded on all of the teeth except one, which served as a control. The teeth were allocated into two groups: Group 1 (n = 5), removal of composite with a TC bur. Group 2 (n = 15), removal of composite using the WL. Scanning electron microscope (SEM) imaging and Energy Dispersive X-ray Spectroscopy (EDS) were used to determine the surface roughness and atomic composition of the surfaces. Results Group 1 had a median damage depth of 17.6 µm with a range between 11.5 µ m and 28.7 µ m. Group 2 had a median damage depth of 166.3 µ m, with a range between 86.6 to 263.1 µ m. The depth differences between the two groups were statistically significant (p < 0.001, Mann–Whitney test). The atomic composition of the WL group was similar to sound enamel. The TC group showed a quantitative increase in carbon and silicone by 38.2% and 11.5%, respectively, a decrease in oxygen by 44.1% and an absence of phosphorous and calcium. Conclusion WL is efficient at removing composite from the enamel surface but could result in increased enamel surface roughness in comparison with conventional TC burs.

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

Cited by 3 publications

References 24 publications

Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Shear Bond Strength of Orthodontic Brackets Bonded to Bleached Enamel using a Novel PAP-Based Bleaching Agent- An In Vitro Study.

In vitro evaluation of surface characteristics comparing WaterLase (Biolase^®) with tungsten carbide burs for composite removal: a pilot study

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

Cited by 3 publications

References 24 publications

Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Evaluating the shear bond strength of rebonded ceramic brackets after using three different techniques for adhesive removal: an in-vitro study

Shear Bond Strength of Orthodontic Brackets Bonded to Bleached Enamel using a Novel PAP-Based Bleaching Agent- An In Vitro Study.

In vitro evaluation of surface characteristics comparing WaterLase (Biolase®) with tungsten carbide burs for composite removal: a pilot study

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In vitro evaluation of surface characteristics comparing WaterLase (Biolase^®) with tungsten carbide burs for composite removal: a pilot study