Effect of charcoal-based dentifrices on the surface integrity and gloss of lithium disilicate glass-ceramics.

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

Clinical Oral Investigations Pub Date : 2025-08-28 DOI:10.1007/s00784-025-06494-z

Victor Martins Stabile, Ana Caroline Lima Colombino, Andrey Gonçalves Emídio, Lourenço Correr-Sobrinho, Roberta Caroline Bruschi Alonso, Regina Maria Puppin-Rontani

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引用次数: 0

Abstract

Objectives: To evaluate the effects of commercially charcoal-based dentifrices on the surface roughness and gloss retention of glazed lithium disilicate glass-ceramics subjected to simulated toothbrushing.

Materials and methods: Seventy-two glazed lithium disilicate specimens (IPS e.max CAD) were randomly assigned to three dentifrice groups (n = 24): two charcoal-based (Carvvo (CVV), Curaprox Black is White (CBW)) and one conventional (Colgate Total 12 (C12)), the control. Toothbrushing simulations were performed for 5,000, 10,000, and 20,000 cycles. Roughness (Ra) and gloss (GU) were measured at baseline and after each cycle. Surface characterization was performed using three-dimensional profilometry and scanning electron microscopy (SEM), which also analyzed abrasive particles. Data were analyzed using two-way repeated measures ANOVA and Tukey's post-hoc test (α = 0.05).

Results: Roughness was affected only by dentifrice type (p = 0.004), with CVV producing higher mean values than C12, and CBW not differing from the others. Brushing cycle (p = 0.164) and interaction (p = 0.095) were non-significant. Gloss was affected by dentifrice (p < 0.001), brushing cycle (p < 0.001), and their interaction (p < 0.001). Charcoal-based dentifrices caused gloss reductions (CVV: 80.77GU baseline to 67.41GU at 20,000 cycles; CBW: 86.39GU baseline to 69.62GU at 20,000 cycles). In contrast, C12 increased gloss, reaching up to 95.97GU at 20,000 cycles.

Conclusions: Charcoal-based dentifrices significantly compromise the surface integrity of glazed lithium disilicate ceramics by increasing roughness and reducing gloss. Conventional dentifrices demonstrate no deleterious effect on ceramic surfaces and may even enhance gloss.

Clinical relevance: Routine use of charcoal-based dentifrices may accelerate surface wear and reduce optical properties of ceramic restorations, potentially compromising longevity and esthetic outcomes.

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炭基牙剂对二硅酸锂微晶玻璃表面完整性和光泽度的影响。

目的：评价商用炭基牙膏对模拟刷牙条件下釉面二硅酸锂微晶玻璃表面粗糙度和保光性的影响。材料与方法：将72份釉面二硅酸锂（IPS e.max CAD）样品随机分为3组（n = 24）： 2组为炭基(Carvvo (CVV), Curaprox Black is White (CBW))， 1组为常规（高露洁Total 12 (C12)），作为对照组。刷牙模拟进行了5,000,10,000和20,000次循环。在基线和每个周期后测量粗糙度（Ra）和光泽度（GU）。使用三维轮廓术和扫描电子显微镜（SEM）进行表面表征，并对磨料颗粒进行分析。数据分析采用双向重复测量方差分析和Tukey事后检验（α = 0.05）。结果：粗糙度仅受牙质类型的影响（p = 0.004）， CVV产生的平均值高于C12， CBW与其他牙质没有差异。刷牙周期（p = 0.164）和相互作用（p = 0.095）无显著性差异。结论：木炭基牙膏通过增加粗糙度和降低光泽，显著损害了釉面二硅酸锂陶瓷的表面完整性。传统的牙膏对陶瓷表面没有有害影响，甚至可以提高光泽。临床意义：常规使用炭基牙材可能会加速表面磨损，降低陶瓷修复体的光学性能，潜在地影响寿命和美观效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.