Printed Versus Conventional Denture Base Resins: Physical- Mechanical Evaluation After Immersion in Beverages and Cleansers.

IF 1.2 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

European Journal of Prosthodontics and Restorative Dentistry Pub Date : 2025-08-29 DOI:10.1922/EJPRD_2845Carvalho-Silva09

J M Carvalho-Silva, J P N Sessa, A B V Teixeira, L M Uehara, I Ferreira, A C Dos Reis

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引用次数: 0

Abstract

Introduction: Denture base resins, both 3D-printed (PR) and heat-cured (HR), are exposed to beverages and cleansers that impact their color stability, surface roughness, and microhardness. Understanding these effects is essential for guiding clinical recommendations and optimizing material selection for long-term use.

Objectives: To evaluate the color change, roughness, and microhardness of PR and HR denture base resins after immersion in beverages and cleansers.

Methods: PR and HR samples were subjected to 5,000 thermocycling cycles in distilled water, coffee, and green tea, as well as immersion in 1% sodium hypochlorite (NaClO) and effervescent tablets (Corega Tabs®) to simulate 6 months of use. Color change was evaluated using the CIELab and CIEDE2000 systems, surface roughness using Ra and Rz parameters, and microhardness, before and after immersion.

Results: Distilled water, 1% NaClO, and effervescent tablet caused higher color changes in both PR and HR (P⟩0.05). HR showed increased roughness after immersion in 1% NaClO, effervescent tablet, and coffee (P⟨0.05). All beverages and cleansers affected PR roughness (P⟨0.05). Only 1% NaClO reduced HR microhardness (P⟨0.05).

Conclusions: Immersion in beverages and cleansers alters the color and roughness of PR and HR, with 1% NaClO causing the most significant impact on their physical and mechanical properties.

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打印与传统义齿基托树脂：浸泡在饮料和清洁剂后的物理-机械评价。

义齿基托树脂，无论是3d打印（PR）还是热固化（HR），都暴露在饮料和清洁剂中，这会影响它们的颜色稳定性、表面粗糙度和显微硬度。了解这些影响对于指导临床建议和优化长期使用的材料选择至关重要。目的：评价PR和HR义齿基托树脂在饮料和清洁剂中浸泡后的颜色变化、粗糙度和显微硬度。方法：PR和HR样品在蒸馏水、咖啡和绿茶中进行5000次热循环，并浸泡在1%次氯酸钠（NaClO）和泡腾片（Corega Tabs®）中模拟6个月的使用。使用CIELab和CIEDE2000系统评估颜色变化，使用Ra和Rz参数评估表面粗糙度，以及浸泡前后的显微硬度。结果：蒸馏水，1% NaClO和泡腾片在PR和HR中引起更高的颜色变化（P⟩0.05）。1% NaClO、泡腾片和咖啡浸泡后，HR的粗糙度增加（P⟨0.05）。所有饮料和清洁剂都会影响PR粗糙度（P⟨0.05）。1% NaClO降低HR显微硬度（P⟨0.05）。结论：浸泡在饮料和清洁剂中会改变PR和HR的颜色和粗糙度，其中1% NaClO对其物理机械性能的影响最为显著。

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

European Journal of Prosthodontics and Restorative Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.30

自引率

7.70%

发文量

期刊介绍： The European Journal of Prosthodontics and Restorative Dentistry is published quarterly and includes clinical and research articles in subjects such as prosthodontics, operative dentistry, implantology, endodontics, periodontics and dental materials.