Scanning electron microscopy evaluation of enamel surfaces using different air-polishing powders in the orthodontic setting: an in vitro study.

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Orofacial Orthopedics-Fortschritte Der Kieferorthopadie Pub Date : 2024-11-01 Epub Date: 2023-05-05 DOI:10.1007/s00056-023-00466-2
Philipp Ratzka, Paul Zaslansky, Paul-Georg Jost-Brinkmann
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Abstract

Purpose: The aim of this in vitro study was to quantify and compare changes of the enamel surface caused by periodical use of different air-polishing powders during multibracket therapy.

Methods: Bovine high-gloss polished enamel specimens were air-polished using an AIR-FLOW® Master Piezon with maximum powder and water settings. Each specimen was blasted with sodium bicarbonate (AIR-FLOW® Powder Classic, Electro Medical Systems, Munich, Germany) and erythritol (AIR-FLOW® Powder Plus, Electro Medical Systems). Blasting duration was adapted to the powders' cleaning efficacy and corresponded to 25 air-polishing treatments in a patient with braces. A spindle apparatus ensured uniform guidance at a distance of 4 mm and a 90° angle. Qualitative and quantitative assessments were performed with the use of low vacuum scanning electron microscopy. Following external filtering and image processing, arithmetical square height (Sa) and root mean square height (Sq) were determined.

Results: Both prophy powders caused a significant increase in enamel roughness. Surfaces blasted with sodium bicarbonate (Sa = 64.35 ± 36.65 nm; Sq = 80.14 ± 44.80 nm) showed significantly (p < 0.001) higher roughness than samples treated with erythritol (Sa = 24.40 ± 7.42 nm; Sq = 30.86 ± 9.30 nm). The observed defects in enamel structure caused by sodium bicarbonate extended across prism boundaries. Prism structure remained intact after air-polishing with erythritol.

Conclusion: Both applied air-polishing powders led to surface alterations. Despite shorter treatment times, sodium bicarbonate was significantly more abrasive than erythritol. Clinicians must compromise between saving time and abrasively removing healthy enamel.

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扫描电子显微镜评估在正畸环境中使用不同空气抛光粉的牙釉质表面:一项体外研究。
目的:本体外研究的目的是量化和比较在多托槽治疗过程中定期使用不同的气抛粉对牙釉质表面造成的变化:方法:使用 AIR-FLOW® Master Piezon,以最大的粉末和水设置对牛的高光抛光珐琅试样进行气抛。每个试样都使用碳酸氢钠(AIR-FLOW® Powder Classic,Electro Medical Systems,德国慕尼黑)和赤藓糖醇(AIR-FLOW® Powder Plus,Electro Medical Systems)进行喷砂。喷射持续时间根据粉末的清洁效果进行调整,相当于对带牙套患者进行 25 次空气抛光治疗。主轴装置确保了在 4 毫米距离和 90° 角上的均匀引导。使用低真空扫描电子显微镜进行了定性和定量评估。经过外部过滤和图像处理后,确定了算术平方高度(Sa)和均方根高度(Sq):结果:两种牙粉都能显著增加釉质的粗糙度。使用碳酸氢钠喷射的表面(Sa = 64.35 ± 36.65 nm;Sq = 80.14 ± 44.80 nm)明显(p a = 24.40 ± 7.42 nm;Sq = 30.86 ± 9.30 nm)。观察到的由碳酸氢钠引起的釉质结构缺陷跨越了棱镜边界。结论:结论:两种气抛粉都会导致表面改变。尽管处理时间较短,但碳酸氢钠的研磨效果明显优于赤藓糖醇。临床医生必须在节省时间和磨除健康珐琅质之间做出妥协。
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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
64
审稿时长
>12 weeks
期刊介绍: The Journal of Orofacial Orthopedics provides orthodontists and dentists who are also actively interested in orthodontics, whether in university clinics or private practice, with highly authoritative and up-to-date information based on experimental and clinical research. The journal is one of the leading publications for the promulgation of the results of original work both in the areas of scientific and clinical orthodontics and related areas. All articles undergo peer review before publication. The German Society of Orthodontics (DGKFO) also publishes in the journal important communications, statements and announcements.
期刊最新文献
The effects of professional expertise on perceptions of treatment need in patients with class II division 1 malocclusion: a comparison between orthodontists, general dentists, and lay people in Germany. Mitteilungen der DGKFO. Effect of orthodontic extraction of mandibular premolars on third molar angulation after treatment with fixed appliances : A cross-sectional study. Long-term effects of orthodontic interceptive expansion treatment : A retrospective study. Scanning electron microscopy evaluation of enamel surfaces using different air-polishing powders in the orthodontic setting: an in vitro study.
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