Purpose: The accuracy of denture bases was compared among injection molding, milling, and rapid prototyping (RP) fabricating method.
Materials And Methods: The maxillary edentulous master cast was fabricated and round shaped four notches were formed. The cast was duplicated to ten casts and scanned. In the injection molding method, designed denture bases were milled from a wax block and fabricated using SR Ivocap injection system. Denture bases were milled from a pre-polymerized block in the milling method. In the RP method, denture bases were printed and post-cured. The intaglio surface of the base was scanned and surface matching software was used to measure inaccuracy. Measurements were performed between four notches and two points in the mid-palatal suture to evaluate inaccuracy. The palatine rugae resolution was evaluated. One-way analysis of variance was used for statistical analysis at α=.05.
Results: No statistically significant differences in distances among four notches (>.05). The accuracy of the injection molding method was lower than those of the other methods in two points of the mid-palatal suture significantly (<.05). The degree of palatine rugae resolution was significantly higher in the injection molding method than that in other methods (<.05).
Conclusion: The overall accuracy of the denture base is higher in milling and RP method than the injection molding method. The degree of fine reproducibility is higher in the injection molding method than the milling or RP method.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6400705 | PMC |
| http://dx.doi.org/10.4047/jap.2019.11.1.55 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A case series on the basic concept and design of removable partial dentures: support and bracing considerations.
BMC Oral Health
January 2025
Department of Removable Prosthodontics, School of Dentistry, Aichi Gakuin University, 2-11 Suemori- dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan.
Background: When designing removable partial dentures, maximizing the effectiveness of support and bracing is necessary to minimize denture movement. Therefore, it is essential to emphasize the importance of providing patients with appropriate, safe, and secure removable partial dentures and have clinicians rerecognize the concept and importance of support and bracing. This study aimed to present extension-base removable partial dentures through six specific clinical case series and describe the effect of support and bracing action on denture design, which is essential for denture movement minimization.
View Article and Find Full Text PDFCADCAM Versus Conventional Denture Bases: Network Meta-Analysis of In Vitro Studies Comparing Accuracy and Surface Properties.
Int Dent J
January 2025
Department of Pharmacy Practice, School of Pharmacy, College of Pharmacy, IMU University, Kuala Lumpur, Wilayah Persekutuan, Malaysia.
Introduction: This systematic review with network meta-analysis (NMA) analysed the current evidence on in vitro studies comparing trueness of fit, surface roughness, colour stability, surface wettability, water sorption, water solubility, and microbial adhesion between conventional and digital denture bases.
Methods: From inception until December 2023, a systematic search of published in-vitro studies from Scopus, PubMed, and the Cochrane Central Register of Controlled Studies was conducted. The protocol was registered in PROSPERO (CRD42024531416).
Antimicrobial activity and applications in PMMA of a novel benzpyrole derivant/iodocuprate hybrid (TMBI)(CuI).
Bioorg Chem
January 2025
Fujian Key Laboratory of Oral Diseases, Fujian Biological Materials Engineering and Technology Center of Stomatology, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian 350004, China; Department of Prosthodontics, School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350001, China. Electronic address:
Among individuals who wear removable dentures, there is a significant likelihood, reaching up to 70 %, of experiencing a condition known as denture-induced stomatitis. To address this issue, a commonly used method involves soaking dentures in denture cleansers to eliminate microorganisms. However, the prolonged use of this cleaning method has resulted in the emergence of drug resistance.
View Article and Find Full Text PDFMicrobial Adhesion and Cytotoxicity of Heat-Polymerized and 3D-Printed Denture Base Materials when Modified with Dimethylaminohexadecyl Methacrylate and/or 2-Methacryloyloxyethyl Phosphorylcholine as Antimicrobial and Protein-Repellent Materials.
Polymers (Basel)
January 2025
Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA.
Background: Polymethyl methacrylate (PMMA) is ideal for denture bases but is prone to biofilm accumulation, leading to denture stomatitis (DS), often involving . Dimethylaminohexadecyl methacrylate (DMAHDM) and 2-methacryloyloxyethyl phosphorylcholine (MPC) are introduced into dental materials for their antimicrobial and protein-repellent properties. This study investigates the effects of incorporating dimethylaminohexadecyl methacrylate (DMAHDM) and 2-methacryloyloxyethyl phosphorylcholine (MPC) into heat-polymerized (HP) and 3D-printed (3DP) denture base resins on microbial adhesion and cytotoxicity.
View Article and Find Full Text PDFGingival margin interfacial microleakage, staining, and push-out strengths of gingival colored composite resins in denture bases.
J Prosthet Dent
January 2025
Professor, Department of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil. Electronic address:
Statement Of Problem: Staining at the gingival margin could impact denture longevity, but the behavior of gingival colored composite resins (GCCs) in this area remains unclear.
Purpose: This in vitro study evaluated surface staining, microleakage, and push-out bond strength at the gingival margin of artificial teeth, comparing two consistencies of GCCs with two resin base materials.
Material And Methods: Specimens included artificial teeth (Ivostar; Ivoclar AG) and two acrylic resin base materials: conventional (Ondacryl; Clássico) and high-impact (Diamond D; Keystone Industries) (n=300).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!