利用电子测量评估多曲方丝弓矫治器治疗对牙齿颜色的影响。

Assessing the effect of multibracket appliance treatment on tooth color by using electronic measurement.

机构信息

Department of Orthodontics and Department of Dental Propaedeutics/Community Dentistry, Dental School, University Medicine, Walther-Rathenau Straße 42a, 17475, Greifswald, Germany.

Department of Prosthetic Dentistry, Gerodontology and Biomaterials, University of Greifswald, Fleischmannstraße 42, 17475, Greifswald, Germany.

出版信息

Head Face Med. 2018 Oct 22;14(1):22. doi: 10.1186/s13005-018-0174-4.

DOI:10.1186/s13005-018-0174-4

PMID:30348191

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6198487/

Abstract

BACKGROUND

The purpose of this study was to investigate how tooth color is affected by multibracket appliance (MBA) treatment.

METHODS

The color of teeth #14 to #24 of 15 patients with MBA was measured on body and gingival tooth segments using the spectrophotometer Shade Inspector™. Colors of both segments were recorded before start of MBA treatment (baseline T), end of MBA treatment (T; 2 years ±0.3), and 3 months after T (T). A 2D color system and a 3D system served as reference systems. Multilevel models were used to analyze color change within segments and to compare the difference in color change between segments (treatment effect).

RESULTS

2D system. Changes within tooth segments from T to T were at worst 2.0 units (ΔE in the gingival segment), which is less than the threshold of 2.7 units for a clinically meaningful difference. Confidence intervals for the treatment effect indicated no clinically important differences in color change between body and gingival segments. 3D system. Changes within tooth segments from T to T were at worst 2.3 units (ΔE in the body segment), which is less than the threshold of 2.7 units for a clinically meaningful difference. Confidence intervals for the treatment effect indicated no clinically important differences in color change between body and gingival segments. Thus, MBA treatment did not lead to clinically relevant changes in tooth color.

CONCLUSION

Within the limitation of this study the MBA treatment can be seen as a safe method with respect to tooth color.

摘要

背景

本研究旨在探究多曲方丝弓矫治器（MBA）治疗对牙齿颜色的影响。

方法

使用分光光度计 Shade Inspector™ 对 15 名 MBA 患者的 14 号至 24 号牙的牙体和龈缘牙段的颜色进行测量。在 MBA 治疗开始前（基线 T）、治疗结束时（T；2 年±0.3）和 T 后 3 个月（T）记录两个牙段的颜色。二维（2D）和三维（3D）系统被用作参考系统。采用多水平模型分析牙段内的颜色变化，并比较牙段间颜色变化的差异（治疗效果）。

结果

2D 系统。从 T 到 T，牙体段内的变化最差为 2.0 个单位（龈缘段的ΔE），小于 2.7 个单位的临床显著差异阈值。治疗效果的置信区间表明，牙体和龈缘段之间的颜色变化无临床显著差异。3D 系统。从 T 到 T，牙体段内的变化最差为 2.3 个单位（牙体段的ΔE），小于 2.7 个单位的临床显著差异阈值。治疗效果的置信区间表明，牙体和龈缘段之间的颜色变化无临床显著差异。因此，MBA 治疗不会导致牙齿颜色的临床相关变化。