Evaluation of the bond strength, surface roughness and wettability between 3D-printed denture base resin to denture lining material to different surface treatments.
Ana Larisse Carneiro Pereira, Bárbara Beatriz Teixeira Lima Cardoso de Souza, Larissa Mendonça de Miranda, Míria Rafaelli Souza Curinga, Lucas Cavalcante de Sousa, Edson Érick Fernandes de Queiroz, Valentim A R Barão, Adriana da Fonte Porto Carreiro
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引用次数: 0
Abstract
Background: The low bond strength between 3D-printed denture base resin and denture lining material is due to the difference in chemical structure, which justifies the use of methods to increase such bond. This study aims to examine the influence of different surface treatments on the bond strength, surface roughness, and wettability between 3D-printed denture resin and denture lining material.
Material and methods: Bar-shaped (75×10×10 mm) and square-shaped (10×10×3 mm) specimens were manufactured using heat-polymerized (HT) (VIPICRIL Plus) and 3D-printed (3D) (Prizma 3D Bio Denture) denture base resin. The bar specimens were sectioned, removing 3 mm from the center to facilitate the insertion of the denture lining material (Ufi Gel SC). Specimens were subjected to three surface treatments (n=15): no treatment (CT), immersion in monomer for 180 seconds (M), and airborne-particle abrasion oxide with 50 µm aluminum oxide (AP). The tensile bond strength was measured at a rate of 5mm/min before and after subjecting the specimens to thermocycling (10 000 cycles). The square-shaped specimens were used to assess average surface roughness (Ra) and wettability (°). Data analysis was performed using a 3-way ANOVA with Tukey's post-test (P<.05).
Results: The treatment of the 3D-printed denture base resin (1.200±0.486) with AP made the bond strength to the denture lining material similar to HT denture base resin (1.314±0.249), without the negative impact of aging. In contrast, M treatment increased the bond strength of both resins to the denture lining material (HT: 2.076±0.463; 3D: 1.534±0.484). Treatment with M provided a lower contact angle for the 3D and HT denture base resin, while the HT denture base resin presented a greater surface roughness for M and AP, compared to 3D.
Conclusions: The 3D-printed denture base resin should undergo immersion in monomer treatment to enhance its bond strength with the denture lining material. Key words:Denture lining material, Complete denture, Manufactured material, Denture base resin, Bond strength.
背景:3d打印义齿基托树脂与义齿衬里材料之间的结合强度较低是由于化学结构的差异,因此需要采用增加这种结合的方法。本研究旨在研究不同表面处理对3d打印义齿树脂与义齿衬里材料结合强度、表面粗糙度和润湿性的影响。材料和方法:采用热聚合(HT) (VIPICRIL Plus)和3D打印(3D) (Prizma 3D Bio Denture)义齿基托树脂制作条形(75×10×10 mm)和方形(10×10×3 mm)标本。将棒材标本切片,从中心移去3mm,以便于插入义齿衬里材料(Ufi Gel SC)。样品进行了三种表面处理(n=15):不处理(CT),在单体中浸泡180秒(M),以及用50µM氧化铝(AP)进行空气颗粒氧化磨损。热循环(10,000次)前后,以5mm/min的速率测量拉伸结合强度。使用方形试样评估平均表面粗糙度(Ra)和润湿性(°)。结果:3d打印义齿基托树脂(1.200±0.486)与HT义齿基托树脂(1.314±0.249)的结合强度相近,且无老化的负面影响。M处理提高了两种树脂与义齿衬里材料的结合强度(HT: 2.076±0.463;3 d: 1.534±0.484)。M处理为3D和HT义齿基托树脂提供了更小的接触角,而HT义齿基托树脂对M和AP的表面粗糙度比3D处理更大。结论:3d打印义齿基托树脂应进行单体浸泡处理,以提高其与义齿衬里材料的结合强度。关键词:义齿衬里材料,全口义齿,人造材料,义齿基托树脂,粘结强度
期刊介绍:
Indexed in PUBMED, PubMed Central® (PMC) since 2012 and SCOPUSJournal of Clinical and Experimental Dentistry is an Open Access (free access on-line) - http://www.medicinaoral.com/odo/indice.htm. The aim of the Journal of Clinical and Experimental Dentistry is: - Periodontology - Community and Preventive Dentistry - Esthetic Dentistry - Biomaterials and Bioengineering in Dentistry - Operative Dentistry and Endodontics - Prosthetic Dentistry - Orthodontics - Oral Medicine and Pathology - Odontostomatology for the disabled or special patients - Oral Surgery