Aims: To evaluate the effects of the micro–etching procedure on the bracket’s slot and base parameters
and on the tensile bond strength of the recycled brackets. Materials and Methods: The sample was 20
stainless brackets grouped into; control brackets group(10) and de–bonded brackets group(10). The de–
bonded brackets reconditioned with micro–etcher. the data subjected to the statistical analysis at ≤ 0.05
significant level. Results: demonstrated that the use of micro–etcher for recycling the de–bonded brackets
do not affect the bracket’s slot and base parameters whereas affected the bond strength of the recycled
brackets. Conclusion: The micro–etcher (sand basting) is recommended for recycling the de–bonded
stainless steal brackets and reuse them in orthodontic treatments
Key words: Orthodontic brackets; micro-ether; recycling.
Table of Contents
1. INTRODUCTION
2. MATERIALS AND METHODS
3. RESULTS
4. DISCUSSION
5. CONCLUSION
Research Objectives and Core Themes
The primary objective of this study is to evaluate the influence of the micro-etching reconditioning procedure on the physical dimensions of stainless steel orthodontic brackets and to assess the resulting tensile bond strength of these recycled brackets compared to a control group.
- Analysis of bracket slot dimensions (width and depth)
- Measurement of inter-wing gap and base curvature angles
- Evaluation of tensile bond strength after reconditioning
- Comparison of micro-etched brackets against non-recycled controls
- Assessment of the clinical viability of recycling orthodontic attachments
Excerpt from the Publication
INTRODUCTION
Recycling appears to be an effective method for cleaning brackets after acid ental debonding and facilitating the reuse of accidentally debonded attachments. Recycling is considered as a solution for using the same bracket for another patient after sterilization. Recycling has an economic and ecological benefit due to the cost of reused bracket below the price of new bracket.
Micro-etching, this method used for removing the old adhesive from the base of de-bonded bracket in order to improve the retentive surface of the base or pad of the de-bonded bracket. This technique utilized a high speed stream of aluminum oxide particles propelled by compressed air, although initially reintroduced as a method for roughing the surface of many dental materials (etch attachment for superior Maryland bridge, etch orthodontic band for rapid cement removal from internal surface of crown and bridge prior to re-cementation). Another application of micro-etcher; etches all metals amalgam, composite, porcelain repair.
Summary of Chapters
1. INTRODUCTION: Outlines the economic and ecological motivations for recycling orthodontic brackets and defines the study's focus on assessing physical dimensional changes and bond strength.
2. MATERIALS AND METHODS: Describes the experimental setup using 20 stainless steel brackets, the micro-etching process with aluminum oxide particles, and the testing procedures for bond strength and dimensional accuracy.
3. RESULTS: Presents the statistical findings, showing no significant dimensional changes in brackets, but noting a measurable difference in tensile bond strength compared to the control group.
4. DISCUSSION: Interprets the findings by comparing them with existing literature, addressing the maintenance of bracket geometry, and explaining the observed reduction in bond strength due to surface area loss.
5. CONCLUSION: Recommends the micro-etching procedure as a viable method for recycling stainless steel brackets for orthodontic reuse due to acceptable functional performance.
Keywords
Orthodontic brackets, micro-etcher, recycling, tensile bond strength, stainless steel, bracket dimensions, reconditioning, sandblasting, adhesive removal, dental materials, surface retention, in vitro study, orthodontics, bond failure, clinical dentistry.
Frequently Asked Questions
What is the primary purpose of this research?
The study evaluates whether using a micro-etcher to clean and recondition de-bonded stainless steel orthodontic brackets compromises their dimensions or their ability to adhere effectively to teeth.
What is the core research question?
The research asks if reconditioned brackets maintain the same physical dimensions and bond strength as new brackets used in a control group.
What scientific method was applied?
The researchers utilized a comparative experimental design, subjecting 10 brackets to a micro-etching recycling process and 10 control brackets to standard conditions, measuring them with a stereomicroscope and testing bond strength with a universal testing machine.
What are the main thematic fields covered?
The paper covers orthodontic materials science, recycling methodologies, surface treatment techniques, and bond strength analysis in clinical dentistry.
What does the main body address?
The main body details the preparation of samples, the specific technical parameters of the micro-etching procedure, the statistical analysis of the measurements, and a discussion regarding the mechanical performance of reconditioned hardware.
Which keywords best describe this study?
Key terms include orthodontic brackets, micro-etcher, recycling, bond strength, and surface reconditioning.
Does the micro-etching process significantly change the slot dimensions?
No, the results demonstrated that there were no significant differences in the slot width, depth, or inter-wing gaps of the recycled brackets compared to the control group.
Why is there a reduction in bond strength for recycled brackets?
The study suggests that the reduction in bond strength is attributed to the loss of a portion of the retentive area on the bracket base during the micro-etching cleaning process.
Is the micro-etcher recommended for clinical practice?
Yes, the authors conclude that the procedure is recommended because, despite a minor change in bond strength, the overall performance remains acceptable for reuse in orthodontic treatments.
- Arbeit zitieren
- Dr. Amer A. Taqa (Autor:in), Hussain A. Obaidi (Autor:in), Omar H. Al-Luazy (Autor:in), 2007, Stainless steal orthodotic brackets recycling (using micro–etcher), München, GRIN Verlag, https://www.grin.com/document/207700
