牙本质预处理对磨耗性牙本质磨损的影响。

Effect of dentin pretreatment on the resulting abrasive dentin wear.

机构信息

Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland.

Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.

出版信息

BMC Oral Health. 2021 Jun 9;21(1):295. doi: 10.1186/s12903-021-01648-3.

DOI:10.1186/s12903-021-01648-3

PMID:34107938

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8191038/

Abstract

BACKGROUND

This study aims to investigate the influence of different dentin pretreatment procedures on the resulting abrasive dentin wear.

METHODS

Two groups (A, B) of 60 dentin samples each were prepared. Group A was brushed with an abrasive slurry (RDA = 85) and group B with a different abrasive slurry (RDA = 174). Four subgroups in each group (n = 15) were created (A1-A4) and (B1-B4). The subgroups were pretreated as follows: A1 + B1 with 1200-grit grinding paper, A2 + B2 with 1200- and 2000-grit papers, A3 + B3 with 1200-, 2000-, and 4000-grit papers, A4 + B4 with 1200-, 2000-, 4000-grit papers and with 1000 brushing strokes with a slurry of Elmex toothpaste. All samples were brushed for 25 min at 120 strokes/min. Abrasive dentin wear was measured for each sample profilometrically and the subgroups were compared with each other within the same group. Repeated measures one-way ANOVA was conducted to compare the subgroups and pairwise contrasts were estimated for multiple testing according to Tukey (α = 0.05).

RESULTS

The resulting abrasive dentin wear in group A ranged between 15.3 ± 3.4 µm and 17.3 ± 5.5 µm and between 20.3 ± 6.8 µm and 22.5 ± 2.6 µm in group B. No statistically significant difference was noticed between any subgroups within the same group (p ˃ 0.05).

CONCLUSIONS

Different dentin pretreatment procedures do not affect the resulting abrasive dentin wear independent of the RDA value of the employed abrasive slurry.

摘要

背景

本研究旨在探究不同牙本质预处理程序对牙本质磨耗的影响。

方法

制备两组（A、B）各 60 个牙本质样本。A 组用研磨剂（RDA=85）刷洗，B 组用不同的研磨剂（RDA=174）刷洗。每组（n=15）创建 4 个亚组（A1-A4 和 B1-B4）。亚组预处理如下：A1+B1 用 1200 目砂纸，A2+B2 用 1200 目和 2000 目砂纸，A3+B3 用 1200 目、2000 目和 4000 目砂纸，A4+B4 用 1200 目、2000 目、4000 目砂纸和用 Elmex 牙膏研磨剂刷 1000 次。所有样本均以 120 次/min 的速度刷洗 25min。对每个样本进行轮廓测量以测量牙本质磨耗，并在同一组内比较亚组。采用重复测量单向方差分析比较亚组，根据 Tukey 法进行多重检验的两两比较（α=0.05）。