scholarly journals Poly(methyl metacrylate) Nanocomposites for Two-piece CAD/CAM Solution as an Alternative to Monolithic Removable Prosthesis

2018 ◽  
Vol 55 (4) ◽  
pp. 634-639 ◽  
Author(s):  
Aida Pantazi ◽  
Eugenia Eftimie Totu ◽  
Dorel Dorobantu ◽  
Corina Marilena Cristache ◽  
Marius Enachescu
Keyword(s):  
Base Material ◽  
Denture Base ◽  
Removable Denture ◽  
Cad Cam ◽  
Removable Prosthesis ◽  
Ft Ir ◽  
Methyl Metacrylate ◽  
The One ◽  
Ir And Raman ◽  
Thermal Stability Of

The aim of the present paper was to characterize the new pink PMMA doped with 0.4% TiO2 nanoparticles utilized for denture base manufacturing as alternative to the one-piece, single color material for removable denture. The PMMA base material was structurally characterized through XRD, SEM, EDX, and subsequently by FT-IR and Raman spectroscopy. An improvement in the thermal stability of the obtained material compared with the PMMA matrix without filler was evidenced. All performed structural analyzes are recommending the new pink PMMA with 0.4% nano-titania as an as an alternative to the one-piece, single color material for removable dentures processing.

scholarly journals Overview of Zirconia: Application as Denture Base Material Substituting for Metal

2013 ◽  
Vol 3 (4) ◽  
pp. 153-156 ◽  
Author(s):  
Kaoru Sakurai ◽  
Tomofumi Takano
Keyword(s):  
Base Material ◽  
Stabilized Zirconia ◽  
Rare Metals ◽  
Denture Base ◽  
Tooth Color ◽  
Metal Free ◽  
Cad Cam ◽  
Removable Prosthesis ◽  
Superior Mechanical Properties ◽  
Fixed Prosthesis

ABSTRACT Zirconia has recently been clinically applied as an ideal tooth color material which acquires superior mechanical properties with high stability without water absorption and dissolution with the progression of the CAD/CAM technique. Dental prosthetic materials have recently evolved to those for metal-free restoration because of the strength, esthetics and environmental protection concerning rare metals. In addition, the increase in demands for metal-free restoration is not limited to fixed prosthesis and dental implants, and it is also directed to application for removable prosthesis. The load-bearing ability of zirconia has been shown to be comparable to that of Co-Cr alloy. Ce-TZP/Al2O3 nanocomposite (NANOZR) with strength, toughness, and thermal stability comparable or superior to those of previously used yttria-stabilized zirconia (Y-TZP) has been clinically applied, suggesting its applicability as a denture base material substituting for metal. How to cite this article Takano T, Sakurai K. Overview of Zirconia: Application as Denture Base Material Substituting for Metal. Int J Prosthodont Restor Dent 2013;3(4):153-156.

An Innovative Cost-Effective Approach for Characterization of Removable Prosthesis - Case Series

2021 ◽  
Author(s):  
Tushar
Keyword(s):  
Case Series ◽  
Cost Effective ◽  
Functional Rehabilitation ◽  
Denture Base ◽  
Cost Effective Approach ◽  
Removable Denture ◽  
Removable Prosthesis ◽  
Cost Effective Alternative ◽  
The Aesthetic ◽  
The Cost

Esthetics plays a crucial role in rehabilitation of removable dentures to achieve a pleasant smile. Denture esthetics is the effect produced, which improves the beauty and attractiveness of a person. With the advances of implants and ceramics, the conventional removable denture needs to be updated. denture characterization is a must in avoiding denture look and giving natural look. Giving the prosthesis as close as possible to the natural apparatus before the tooth loss is the key to a successful prosthetic, esthetic and functional rehabilitation. As a prosthodontist dealing in fulfilling the aesthetic challenges an economical alternative to high-end costly procedures is a must considering the Indian scenario, keeping in mind the biocompatibility and longevity of the treatment. As per literature light cure, gum staining is one of the techniques for masking denture base color and imparting natural color to mucosa but considering the cost involved many patients requiring aesthetic enhancement of prosthesis avoid going for such treatment thereby compromising their aesthetic. the present case series describe an innovative cost-effective alternative to the previously describe technique for masking the denture base color by using composite mixed with stains to replicate the natural apparatus.

scholarly journals MANUFACTURING OF FULL REMOVABLE LAMINAR DENTURES USING DIFFERENT GROUPS OF MATERIALS FOR DENTURE BASES AND THEIR COMPARATIVE CHARACTERISTICS

2020 ◽  
Vol 20 (3) ◽  
pp. 55-59
Author(s):  
V.S. Kuz ◽  
E.B. Tumakova ◽  
G.M. Kuz ◽  
A.I. Teslenko ◽  
L.B. Eris
Keyword(s):  
Base Material ◽  
Clinical Findings ◽  
Denture Base ◽  
Acrylic Plastic ◽  
Base Materials ◽  
Acrylic Resins ◽  
Functional Quality ◽  
Removable Denture ◽  
Edentulous Patients

Restoration of complete maxillary or mandibular adentia, despite the advances of dentistry nowadays, has always been and is still remaining one of the most challenging among the clinical issues of orthopedic dentistry. The effectiveness of a high-quality complete removable denture is largely predetermined by the properties of the denture base material. However, long experience in manufacturing the dentures has revealed a number of their disadvantages. The development of new denture base materials and their studies have been being carried out for many years. The aim of this work was to investigate the effectiveness of thermoplastic base material "Vertex ThermoSense" (Netherlands) and fluorine-containing acrylic plastic "Ftoraks" (Ukraine) used in manufacturing the dentures for edentulous patients who previously worn full removable dentures made of acrylic plastic over the past 3- 5 years. We examined and treated 43 patients with complete anodontia who went to the orthodontic clinic to order a new denture. We used fluorine-containing acrylic co-polymers "Ftorax" (Ukraine) and polyamide (nylon) "Vertex ThermoSense" (Netherlands), recommended by manufacturers for making removable dentures. We assessed the level subjective satisfaction with new dentures in different follow-up time intervals, checked the restoration of the chewing function in the patients using electromyographic techniques. Clinical findings obtained supported the superiority of Vertex ThermoSense thermoplastic material over fluorine-containing acrylic resins in terms of high functional quality and strength that facilitate the durability of these complete dentures. In addition, the denture base made of "Vertex ThermoSense" does not contain residual monomer, thereby preventing the occurrence of allergic reactions. The results of our work allow us to strongly recommend the material "Vertex ThermoSense" to implement into prosthodontic practice for manufacturing complete removable dentures.

scholarly journals REJUVENATING EDENTULISM USING CAD-CAM TECHNOLOGY: A COMPREHENSIVE REVIEW

2020 ◽  
Vol 8 (9) ◽  
pp. 1233-1243
Author(s):  
Suresh Kamble ◽  
◽  
Ajit Jankar ◽  
Pratiksha Somwanshi ◽  
Shirish Pawar ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Oral Care ◽  
Public Health Problem ◽  
Acrylic Resin ◽  
Cost Of Care ◽  
Complete Dentures ◽  
Denture Base ◽  
Removable Denture ◽  
Computer Aided ◽  
Cad Cam

Edentulism has been a severe public health problem in industrialized countries due to aging and poor oral care. Design and fabrication of the complete dentures are mainly using conventional methods involving an enormous series of clinical and laboratory procedures. Edentulous patients have to make several visits to the clinic for the traditional fabrication of denture. Now the unceasing developments occur over several years. Present-day technological innovations allow the use of various systems with computer‑aided design/computer‑aided manufacture (CAD/CAM) technology to produce complete dentures has seen exponential growth. There are different manufacturing techniques of CAD-CAM complete denture like AvaDent, Wieland digital denture, Baltic denture, DENTC system. CAD-CAM technology requires only two appointments for the patient to get their complete removable denture. A reduction in clinical chair time also shortens the cost of care. The improved fit of the denture was because of fewer processing errors. It simplifies the re-manufacturing of lost/broken prostheses due to the digital storage of denture data. The pre-polymerized acrylic resin used by manufacturers for the fabrication of a denture base delivers excellent fit and strength when compared to conventionally processed bases. It doesnt show any polymerization shrinkage as there is a less residual monomer. Hence, it reduces the potential infections as fewer candida albicans attach to the denture bases. The motive of this article is to highlights the benefits of CAD-CAM technology over conventional denture fabrication.

Thermal Properties of Acrylic Resin Denture Base Material Containing Silver Nanoparticle Synthesized from Aqueous Extract of Boesenbergia rotunda

2018 ◽  
Vol 777 ◽  
pp. 173-177
Author(s):  
Panjaporn Wongwitthayakool ◽  
Matsayapan Pudla
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Thermal Properties ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base ◽  
Acrylic Resins ◽  
Thermal Stability Of

Silver nanoparticles (AgNPs) were synthesized by bioreduction method using aqueous extracts of Boesenbergia rotunda as reducing and stabilizing agents. Ultraviolet-Visible (UV-Vis) spectrophotometer was utilized to monitor the qualitative formation of AgNPs. The UV-Vis spectrum showed that the spherical AgNPs with diameter of 20-40 nm were formed. The antifugal activity of synthesized AgNPs was investigated using Candida albicans, which was found that the synthesized AgNPs could be used as effective growth inhibitors. The influence of the incorporation of prepared AgNPs on thermal properties of the acrylic denture base material was investigated. Glass transition temperature of filled acrylic resins was studied using the dynamic mechanical analyzer (DMA). The temperature sweeps were performed with tension mode. Thermogravimetry analysis (TGA) was used to examine effect of AgNP concentration and thermocycling (1250, 2500, 5000, and 10000 cycles) on thermal stability of AgNP filled acrylic resin denture base materials. Glass transition temperature (Tg) of the acrylic resins slightly increase with increasing AgNP contents. TGA results indicated that AgNP retarded thermal degradation of acrylic resin denture material, and thermocycling did not affect thermal stability of AgNP filled acrylic resin denture material.

Denture plaque microbiology in relation to removable denture hygiene methods

2017 ◽  
Vol 67 (1) ◽  
pp. 18-27
Author(s):  
Krzysztof Majchrzak ◽  
Ksenia Szymanek-Majchrzak ◽  
Elżbieta Mierzwińska-Nastalska ◽  
Dariusz Rolski
Keyword(s):  
Organ Transplant ◽  
Point Of View ◽  
Bacterial Biofilm ◽  
Bacterial Strains ◽  
Chemical Methods ◽  
Denture Base ◽  
Acrylic Plate ◽  
Removable Denture ◽  
Removable Prosthesis ◽  
The Impact

Introduction. Removable dentures, which constitute a reservoir of bacterial and fungal flora, can be an etiological factor responsible for generating local and systemic diseases. Plaque removal by applying mechanical and chemical methods is a basic principle of denture hygiene, it reduces the quantity of microorganisms and can play a role in the qualitative composition of bacterial biofilm. Aim of the study. To evaluate the impact of different denture hygiene methods on the composition of staphylococcal flora on the surface of denture base. Materials and methods. The study involved 62 patients of the Department of General and Transplantation Surgery and the Department of Prosthodontics. Each patient had a removable prosthesis. A thorough dental history with special emphasis put on denture hygiene methods was collected, swab from impression side of denture pate was sampled. Strains of the genus Staphylococcus were isolated and identified. Statistical analysis was conducted. Results. In the group of the examined patients, denture hygiene scheme based on toothbrush and toothpaste was most commonly used (53%). Bacterial strains of the genus Staphylococcus were found in 90% of subjects. The highest percentage of stains, including those with high pathogenicity (S.aureus, S.epidermidis, S.haemolyticus), were isolated in the subjects who used toothbrush and toothpaste and the lowest in those who regularly used mechanical and chemical denture cleaning methods. Conclusions. From a microbiological point of view, a combination of mechanical and chemical methods in regular denture hygiene, can help reducing the number of Staphylococcal strains. Patients, who receive an organ transplant should pay special attention to denture hygiene as microorganisms present on acrylic plate can pose a threat to their health and even life.

Structure and thermal stability of PMMA/MMT nanocomposites as denture base material

2013 ◽  
Vol 115 (2) ◽  
pp. 1143-1151 ◽  
Author(s):  
Xiang Wang ◽  
Qiang Su ◽  
Yumei Hu ◽  
Chuanzeng Wang ◽  
Junping Zheng
Keyword(s):  
Thermal Stability ◽  
Base Material ◽  
Denture Base ◽  
Thermal Stability Of

Bonding between implant attachment pickup materials and CAD-CAM denture base material

2021 ◽  
Author(s):  
Meenarin Panittaveekul ◽  
Kamolphob Phasuk ◽  
John Levon ◽  
Tien-Min G. Chu
Keyword(s):  
Base Material ◽  
Denture Base ◽  
Cad Cam

scholarly journals TECHNIQUES TO STUDY INDICATORS OF TEMPERATURE IN FOUNDATION AREA AND PRESSURE ONTO THE MUCOUS MEMBRANE FROM REMOVABLE LAMINAR DENTURES

2019 ◽  
Vol 19 (4) ◽  
pp. 73-76
Author(s):  
Ye.S. Khilinich ◽  
M.Ya. Nidzelsky ◽  
V.Yu. Davydenko ◽  
V.V. Kuznetsov ◽  
G.M. Davydenko
Keyword(s):  
Mucous Membrane ◽  
Diagnostic Process ◽  
Physical Parameters ◽  
Dynamic Changes ◽  
Tissue Pressure ◽  
Denture Base ◽  
Removable Denture ◽  
Removable Plate ◽  
Removable Prosthesis ◽  
Temperature And Pressure

The analysis of the literature has shown that few scientists have dealt with the study of changes in the temperature of the mucous membrane under the base of the removable prosthesis and effects caused by its pressure onto the underlying tissues. There have been even less data on the techniques, which enable to investigate such indicators in the oral cavity, especially in patients using removable laminar dentures. The purpose of this work is to carry out a comparative analysis of the existing methods to determine the temperature indices in the foundation area mucosa and the pressure indices on it from complete removable laminar dentures made of acrylic plastics and to design and test a devices for measuring temperature and tissue pressure in the foundation area mucosa from removable plate dentures. This will enable to evaluate the foundation area condition in a particular patient more accurately as well as to track the dynamic changes during the adaptation to the dentures and in remote terms that consequently will lead to achieving the minimal differences in obtaining results, will improve the diagnostic process by measuring physical parameters affecting the state of the foundation area. We have designed and proposed a device for measuring the pressure and temperature of the mucous membrane under the denture base, which was given a utility model patent. The proposed device for measuring temperature and pressure under the removable denture by improving its design and functionality are effective in measuring the pressure and temperature, the dependence of temperature on the pressure; its action is based on involving several pressure and temperature sensors and this allows us obtain average results visualized on the screen of the device, to carry data to a computer and their following processing.

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