The effect of thermal aging on the color matching of Class III and Class V restorations with universal resin composites in various-shade human teeth: an instrumental and visual evaluation.

IF 3.1 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical Oral Investigations Pub Date : 2025-06-26 DOI:10.1007/s00784-025-06439-6

Seyit Bilal Ozdemir, Busra Ozdemir

{"title":"The effect of thermal aging on the color matching of Class III and Class V restorations with universal resin composites in various-shade human teeth: an instrumental and visual evaluation.","authors":"Seyit Bilal Ozdemir, Busra Ozdemir","doi":"10.1007/s00784-025-06439-6","DOIUrl":null,"url":null,"abstract":"Objectives: This in vitro study aimed to assess the color matching of two single-shade and one group-shade universal composite resins for Class III and Class V restorations in extracted human teeth of different shades and evaluate the impact of thermal aging on these restorations using both instrumental and visual methods.Materials and methods: Forty-five extracted human central incisors in a range of Vita Classical shades (A1, A2 and A3) were used. Three composite resins (Zenchroma (ZC), Charisma Diamond One (CDO), and Neo Spectra ST (NEO)) were tested. Each tooth received both Class III and Class V restorations (2 mm depth and 4 mm diameter) with the same composite resin. Color measurements were made immediately after restoration, 24 h, and after thermal aging using an intraoral spectrophotometer. Color differences (ΔE00) were calculated using the CIEDE2000 formula. Visual assessments were scored from 0 (perfect fit) to 4 (significant mismatch) by three dental specialist. Data were analyzed using IBM SPSS V23. A Generalized Linear Model (GLM) was used to assess main and interaction effects, and Tukey's test was applied for multiple comparisons. A significance level of p < 0.05 was considered.Results: NEO showed statistically significantly lower ΔE₀₀ values (2.45 ± 1.29) compared to the other composite resins (p < 0.001). Class III restorations (3.41 ± 1.48) exhibited lower ΔE₀₀ values than Class V restorations (4.56 ± 2.23, p < 0.001). ΔE₀₀ values decreased after aging (p = 0.007).Conclusion: Class III restorations demonstrated better color matching than Class V restorations in both visual and instrumental evaluations. The group-shade composite resin showed better color matching compared to the single-shade composite resins. Although visual matching improved over time, some instrumentally measured color differences remained above the clinically acceptable threshold (ΔE₀₀>1.8).Clinical relevance: Clinicians should consider both composite type and cavity configuration when selecting materials for aesthetic restorations.","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":"29 7","pages":"360"},"PeriodicalIF":3.1000,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12202620/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Oral Investigations","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s00784-025-06439-6","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Objectives: This in vitro study aimed to assess the color matching of two single-shade and one group-shade universal composite resins for Class III and Class V restorations in extracted human teeth of different shades and evaluate the impact of thermal aging on these restorations using both instrumental and visual methods.

Materials and methods: Forty-five extracted human central incisors in a range of Vita Classical shades (A1, A2 and A3) were used. Three composite resins (Zenchroma (ZC), Charisma Diamond One (CDO), and Neo Spectra ST (NEO)) were tested. Each tooth received both Class III and Class V restorations (2 mm depth and 4 mm diameter) with the same composite resin. Color measurements were made immediately after restoration, 24 h, and after thermal aging using an intraoral spectrophotometer. Color differences (ΔE₀₀) were calculated using the CIEDE2000 formula. Visual assessments were scored from 0 (perfect fit) to 4 (significant mismatch) by three dental specialist. Data were analyzed using IBM SPSS V23. A Generalized Linear Model (GLM) was used to assess main and interaction effects, and Tukey's test was applied for multiple comparisons. A significance level of p < 0.05 was considered.

Results: NEO showed statistically significantly lower ΔE₀₀ values (2.45 ± 1.29) compared to the other composite resins (p < 0.001). Class III restorations (3.41 ± 1.48) exhibited lower ΔE₀₀ values than Class V restorations (4.56 ± 2.23, p < 0.001). ΔE₀₀ values decreased after aging (p = 0.007).

Conclusion: Class III restorations demonstrated better color matching than Class V restorations in both visual and instrumental evaluations. The group-shade composite resin showed better color matching compared to the single-shade composite resins. Although visual matching improved over time, some instrumentally measured color differences remained above the clinically acceptable threshold (ΔE₀₀>1.8).

Clinical relevance: Clinicians should consider both composite type and cavity configuration when selecting materials for aesthetic restorations.

查看原文本刊更多论文

热老化对不同色度人类牙齿通用树脂复合材料III类和V类修复体配色的影响：仪器和视觉评价。

目的：本体外研究旨在评估两种单色和一群色通用复合树脂在提取的不同色度的人类牙齿上的III类和V类修复体的配色性，并通过仪器和视觉方法评估热老化对这些修复体的影响。材料和方法：采用45颗提取的Vita classic色（A1， A2和A3）人类中切牙。对三种复合树脂(Zenchroma （ZC）、Charisma Diamond One （CDO）和Neo Spectra ST （Neo）进行了测试。每颗牙齿使用相同的复合树脂进行III级和V级修复（2mm深度和4mm直径）。修复后、24小时后和热老化后立即使用口腔内分光光度计进行颜色测量。色差（ΔE00）使用CIEDE2000公式计算。三位牙科专家的视觉评估评分从0（完美匹配）到4（显著不匹配）。数据分析采用IBM SPSS V23软件。采用广义线性模型（GLM）评价主效应和交互效应，多重比较采用Tukey检验。结果：NEO与其他复合树脂相比，ΔE 0 0值（2.45±1.29）显著降低(p)。结论：III类修复体在视觉和仪器评估中表现出比V类修复体更好的颜色匹配。与单色复合树脂相比，群色复合树脂具有更好的配色性能。虽然视觉匹配随着时间的推移而改善，但一些仪器测量的色差仍然高于临床可接受的阈值（ΔE 0 0 >1.8）。临床相关性：临床医生在选择美学修复材料时应考虑复合类型和腔体结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Clinical Oral Investigations 医学-牙科与口腔外科

CiteScore

6.30

自引率

5.90%

发文量

484

审稿时长

3 months

期刊介绍： The journal Clinical Oral Investigations is a multidisciplinary, international forum for publication of research from all fields of oral medicine. The journal publishes original scientific articles and invited reviews which provide up-to-date results of basic and clinical studies in oral and maxillofacial science and medicine. The aim is to clarify the relevance of new results to modern practice, for an international readership. Coverage includes maxillofacial and oral surgery, prosthetics and restorative dentistry, operative dentistry, endodontics, periodontology, orthodontics, dental materials science, clinical trials, epidemiology, pedodontics, oral implant, preventive dentistiry, oral pathology, oral basic sciences and more.