Clinical performance of a light-cured denture base material compared to polymethylmethacrylate—a randomized clinical study

Abstract

The aim of this study was to evaluate the clinical long-term performance of a visible light-cured resin (VLCR) denture base material and to compare it to a well-established polymethylmethacrylate (PMMA)-based denture acrylic in a randomized split-mouth clinical long-term study. One hundred removable partial dentures in 90 patients, with at least two saddles each, were investigated. One saddle was made of VLCR, while the other was made of PMMA at random. Plaque adhesion, tissue reaction, and technical parameters of the dentures were assessed 6, 12, and 18 months after treatment. Statistical analysis was performed using the Wilcoxon rank-sum test. Though VLCR showed higher plaque adhesion than PMMA after 6, 12, and 18 months (p < 0.001), there were no important differences with regard to tissue reaction. Concerning plaque adhesion, surface quality with regard to the lower side, interfaces between denture acrylic and metal and the boundary between denture acrylic and denture tooth PMMA was rated higher than VLCR. The surface quality of the upper side of the denture saddles showed no significant differences (p > 0.05). Neither VLCR nor PMMA showed discoloration at any point in time (p > 0.05). It can be concluded that VLCR is a viable alternative for the production of removable dentures. Especially in patients with hypersensitivities to PMMA, VLCR is particularly suitable for clinical use.

Strategies for Preventing and Treating Oral Mucosal Infections Associated with Removable Dentures: A Scoping Review

“…Several studies in this decade have explored innovative approaches to enhancing dental prosthesis materials. These include the application of varnish (Sterngold), glazing adhesive (Biscover LV and surface coat), titanium dioxide (TiO 2 ) coatings using the atomic layer deposition (ALD) technique, and the incorporation of antifungal agents such as 5% miconazole, characterized nickel, and nickel oxide nanoparticles (NiCl 2 , NiNPs, and NiONPs), derivatives of the compound 1,4-diazabicyclo [2.2.2]octane (DABCO), Yamani henna powder, and silver (AgNPs) and titanium oxide (TiO 2 NPs) nanoparticles, into dental prosthesis manufacturing materials [ 53 , 57 , 61 , 69 , 79 , 84 , 87 , 90 , 113 ].…”

Using a Visible Light‐Polymerized Resin to Fabricate an Interim Partial Removable Dental Prosthesis

“…The primary disadvantages are brittleness and low impact resistance . VLP resins tend to retain more surface biofilm than PMMAs; however, there is no corresponding mucosal reaction . Plaque retention as well as poor strength may be related to a relatively high degree of porosity found in VLP resins.…”

“…6,7 VLP resins tend to retain more surface biofilm than PMMAs; however, there is no corresponding mucosal reaction. 8 Plaque retention as well as poor strength may be related to a relatively high degree of porosity found in VLP resins. The volume of porosity is related to the fact that the resins cannot be polymerized under pressure.…”

A Narrative Review of Different Types and Processing Methods of Acrylic Denture Base Material

“…Photosensitizing agent such as camphorquinone serves as the initiator for polymerization while visible light acts as the activator [1].The latest generation of light activated denture base resin consists of a base forming resin, tooth setting resin and a contouring resin. Gohlke Wehre reported in a randomized clinical study that light activated material could be recommended to patients with hypersensitivity to PMMA [40]. However, although visible-light cured resin exhibited comparable transverse strength, hardness, rigidity, non-toxicity as compared to heat-cured acrylic resins, its susceptibility to staining and brittleness and its low impact resistance has limited its use [39,41].…”