Serbanoiu Dan-Cosmin, Vartolomei Aurel-Claudiu, Ghiga Dana-Valentina, Moldovan Marioara, Sarosi Codruta, Petean Ioan, Boileau Marie-Jose, Pacurar Mariana
Faculty of Dental Medicine, GEP University of Medicine Pharmacy, Science and Technology of Targu Mures, 540139 Târgu Mures, Romania.
Raluca Ripan Chemistry Research Institute, Babes-Bolyai University, 400294 Cluj-Napoca, Romania.
Biomedicines. 2024 Jul 23;12(8):1629. doi: 10.3390/biomedicines12081629.
Interproximal enamel reduction (IER) is a minimally invasive therapeutic procedure commonly used in orthodontics to address both functional and aesthetic issues. Its mechanical effects on enamel surfaces induce the formation of grooves, furrows, scratches, depressions, and valleys. The aim of this study was to assess the enamel surface roughness resulting after the application of currently available methods for interproximal reduction. Ninety freshly extracted human teeth were divided into six groups and subjected to the stripping procedure, using a different method for each group (diamond burs, abrasive strips of 90 μm, 60 μm, 40 μm, 15 μm, and abrasive discs). A single individual performed stripping according to the manufacturer's recommendations, involving interproximal reduction on one tooth's proximal face and leaving the other side untreated. Qualitative and quantitative assessment of the enamel surfaces was carried out using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM), obtaining 2D and volumetric 3D images of the enamel surface microstructure and nanostructure. The study found that diamond burs and abrasive strips of 60 μm and 90 μm increased enamel roughness due to intense de-structuring effects, while the 40 μm polisher had a gentler effect and 15 μm abrasive strips and polishing discs preserved enamel surface quality and removed natural wear traces.
邻面釉质磨除术（IER）是正畸治疗中常用的一种微创治疗方法，用于解决功能和美观问题。其对釉质表面的机械作用会导致形成凹槽、沟纹、划痕、凹陷和凹坑。本研究的目的是评估应用目前可用的邻面磨除方法后产生的釉质表面粗糙度。将90颗新鲜拔除的人牙分为六组，每组采用不同方法进行磨除操作（金刚砂车针、90μm、60μm、40μm、15μm的磨砂条和磨砂盘）。由一名操作人员按照制造商的建议进行磨除，即在一颗牙齿的近中面进行邻面磨除，另一侧不处理。使用扫描电子显微镜（SEM）和原子力显微镜（AFM）对釉质表面进行定性和定量评估，获得釉质表面微观结构和纳米结构的二维和三维体积图像。研究发现，金刚砂车针以及60μm和90μm的磨砂条会因强烈的解构作用而增加釉质粗糙度，而40μm的抛光器作用较温和，15μm的磨砂条和抛光盘则能保持釉质表面质量并去除自然磨损痕迹。
