![]() ![]() Paste adhesives improve the seal of dentures by preventing food debris from becoming trapped underneath the denture. PastesĪ paste is the form of adhesive that comes to mind when someone mentions using a denture adhesive – the type that is gooey, messy, and difficult to remove. The use of powders is appropriate when the patient is concerned that their dentures may slip at the most inopportune moment – like when giving a speech or attending a formal dinner. Powdersĭenture powders add an extra layer of security for a denture that otherwise fits quite well. They all contain similar components, including both rapid-acting and long-lasting adhesives, antimicrobial agents, and flavoring agents. There are four primary types of denture adhesives available to consumers – powders, pastes, creams, and pads. This article will serve as a guide to help dental professionals direct patients to the proper use of denture adhesives. Only when gaps exist between the tissue and the intaglio surface of the denture are adhesives truly beneficial as a temporary method for filling space that prevents the denture from forming a tight seal. With the plethora of advertising, most denture patients automatically assume that using adhesives are a necessary part of wearing dentures, and they don’t realize that well-fitting dentures will stay in place without the use of denture adhesives. ![]() All rights reserved.Denture adhesives are a popular topic among denture wearers. The tooth type affected the margin quality according to the build angle, except in the case of first premolars.Ĭopyright © 2020 Editorial Council for the Journal of Prosthetic Dentistry. The recommended build angle for interim crowns fabricated using 3D printing is between 150 and 210 degrees. In 3D printing, the build angle affected the intaglio surface trueness of the interim crown. The worst margin quality observed in all teeth was at 180 degrees. ![]() The margin quality was significantly different as per the build angle in the central incisor and the first molar (P<.05). The central incisor and first premolar showed the lowest RMS value at 180 degrees, and the first molar showed the lowest RMS value at 210 degrees. The RMS value showed significant differences in the various types of tooth as per the build angles (P<.001). Statistical analysis was performed using 1-way ANOVA, 2-way ANOVA, and the Tukey honestly significant difference post hoc test (α=.05). In addition, a grading system was developed to evaluate the margin quality, which was assessed visually. CRM and CTM used 3D inspection software to analyze the intaglio surface superimposition and root mean square (RMS). The intaglio surface of the printed interim crown was digitized. For CAD test model (CTM) production, 3D printing was performed in accordance with the type of tooth (maxillary central incisor, first premolar, and first molar) and the build angles (90, 120, 135, 150, 180, 210, 225, 240, and 270 degrees) (n=17). The purpose of this in vitro study was to evaluate the effects of intaglio surface trueness and margin quality in accordance with the type of tooth and the build angles of interim crowns fabricated by SLA 3D printing.Ī definitive cast was digitized for computer-aided design (CAD) reference model (CRM) production, and the interim crown was designed by using a CAD software program and saved as a standard tessellation language (STL) file. Studies on the intaglio surface trueness and margin quality of interim crowns fabricated using stereolithography apparatus (SLA) 3D printing depending on the type of tooth and the build angle are lacking. ![]()
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