Effect of Denture Adhesives on the Surface Roughness and Hardness of Denture Base Resins—A Preliminary Study
Source abstract
Abstract
This study aimed to evaluate the impact of different adhesive solutions on the surface roughness and hardness of denture base materials. Twenty specimens (20 × 20 × 5 mm) were produced for each material group: heat-cured ProBase Hot®, 3D-printed NextDent Denture 3D+®, and PMMA-milled Exaktus®. They were then divided into five solution subgroups (n = 4): control (T0), distilled water, Corega PowerMax®, Elgydium Fix®, and Kukident Pro Ultimate®. Specimens were immersed in the solution at 37 °C daily for 28 days, simulating continuous use. Profilometry and Shore D hardness tests were performed at baseline and after 28 days of the immersion protocol. Data analysis was done using IBM SPSS Statistics 30.0, considering a confidence level of 0.05. At baseline, the materials differed in surface roughness and Shore D hardness, with the 3D-printed group showing the highest median values for the Rz parameter (p = 0.023) and the lowest for hardness (p = 0.023). Elgydium Fix had a significant effect on the heat-cured resin, with increased Rz and decreased hardness. Kukident caused higher roughness and lower hardness in the 3D-printed and milled resins (not significant). Corega showed minor effects in all tested materials. In conclusion, the denture base material and the adhesive formulation influence the physical and mechanical properties of denture base resins.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Dental Erosion and Treatment · Dental Implant Techniques and Outcomes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculdade de Medicina Dentária da Universidade do Porto (FMDUP), 4200-393 Oporto, Portugal
Faculdade de Odontologia da Universidade de São Paulo (USP), São Paulo 05508-000, Brazil
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), 4200-465 Oporto, Portugal
Faculdade de Engenharia, Universidade do Porto (FEUP), 4200-465 Oporto, Portugal
Faculdade de Medicina Dentária, Universidade de Lisboa (FMDUL), 1600-277 Lisbon, Portugal
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