Milled Surface Integrity: Application to Fixed Dental Prosthesis

Surface integrity is a multiphysics (biological, mechanical, optical, chemical, esthetic, etc.) and multiscale (from nm to mm) concept. It is defined as the residual signature left on the surface by the manufacturing or post-treatment process and permits correlating the process with the expected surface functionalities. Thanks to the advances made in mechanical engineering, the concept of surface integrity has been transposed to dentistry and oral science. The surface integrity concept transposed to fixed dental prostheses is presented in this article. The main components of surface integrity and their correlations within the triptych of surface integrity–process–clinical functionalities are presented.

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Posterior Resin Bonded Fixed Dental Prosthesis - A Case Report

Bangladesh Journal of Dental Research & Education ◽

10.3329/bjdre.v5i1.22458 ◽

2015 ◽

Vol 5 (1) ◽

pp. 26-28

Author(s):

Naeem Ahmad ◽

Taseer Bashir ◽

Azeem Khan ◽

Vijay Krishnan ◽

Monu Yadav ◽

...

Keyword(s):

Case Report ◽

Dental Prosthesis ◽

Preparation Methods ◽

Dental Research ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Fixed Dental Prostheses ◽

Tooth Preparation ◽

Research And Education

Dentistry is an ever evolving science. With the advancements in the field of bonding techniques and also in the tooth preparation methods, the use of Resin bonded fixed dental prostheses is becoming a treatment of choice for small posterior edentulous spans. DOI: http://dx.doi.org/10.3329/bjdre.v5i1.22458 Bangladesh Journal of Dental Research and Education Vol.5(1) 2015: 26-28

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A Modified Design for Posterior Inlay-Retained Fixed Dental Prosthesis

Case Reports in Dentistry ◽

10.1155/2015/576820 ◽

2015 ◽

Vol 2015 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Abdulaziz Samran ◽

Mohammad Zakaria Nassani ◽

Marwan Aswad ◽

Amid Abdulkarim

Keyword(s):

Clinical Case ◽

Composite Resin ◽

Dental Prosthesis ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Traditional Design ◽

Metal Ceramic ◽

Fixed Dental Prostheses ◽

Ceramic Inlay

The aim of this paper is to report a clinical case with bilateral missing mandibular second premolars that were restored by metal-ceramic inlay-retained fixed dental prostheses. The first prosthesis was of a traditional design and the second was of a modified design. The suggested design is created by modifying the retainer wings of the traditional resin-bonded inlay-retained fixed dental prosthesis and covering the wings with composite resin. The modified design is relatively conservative, esthetic and provides an extra element for the retention of posterior metal-ceramic inlay-retained fixed dental prostheses.

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Precision and accuracy of four current 3D Printers to achieve models for Fixed Dental Prosthesis.

Acta Odontológica Latinoamericana ◽

10.54589/aol.33/1/003 ◽

2020 ◽

Vol 33 (1) ◽

pp. 6-13

Author(s):

Bianca Reis ◽

Fernando Portella ◽

Elken Rivaldo

Keyword(s):

Dental Prosthesis ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Original Dataset ◽

Accuracy And Precision ◽

3D Printers ◽

Fixed Dental Prostheses ◽

Precision And Accuracy

The aim of this study was to compare the accuracy and precision of 3D printers used to obtain models of fixed dental prostheses. A fixed dental prosthesis preparation was scanned and reproduced by four 3D printers: RapidShape P40, Asiga MAX, Varseo, and Photon. The impressions were scanned again, and the dataset was compared to the original dataset. Mean discrepancies (µm) were 52.97±20.48 (RapidShape P40), 68.27±43.53 (Asiga MAX), 62.22±56.21 (Varseo), and 80.03±28.67 (Photon). There was no difference (p=0.314) in accuracy; however, the precision differed (p=0.015) among the 3D printers. The printers had distinct precision but did not differ in accuracy.

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Inlay-Retained Fixed Dental Prosthesis: A Clinical Option Using Monolithic Zirconia

Case Reports in Dentistry ◽

10.1155/2014/629786 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 3

Author(s):

Davide Augusti ◽

Gabriele Augusti ◽

Andrea Borgonovo ◽

Massimo Amato ◽

Dino Re

Keyword(s):

Functional Integration ◽

Invasive Procedure ◽

High Strength ◽

Tooth Structure ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Cad Cam ◽

Fixed Dental Prostheses ◽

Monolithic Zirconia

Different indirect restorations to replace a single missing tooth in the posterior region are available in dentistry: traditional full-coverage fixed dental prostheses (FDPs), implant-supported crowns (ISC), and inlay-retained FDPs (IRFDP). Resin bonded FDPs represent a minimally invasive procedure; preexisting fillings can minimize tooth structure removal and give retention to the IRFDP, transforming it into an ultraconservative option. New high strength zirconia ceramics, with their stiffness and high mechanical properties, could be considered a right choice for an IRFDP rehabilitation. The case report presented describes an IRFDP treatment using a CAD/CAM monolithic zirconia IRFDP; clinical and laboratory steps are illustrated, according to the most recent scientific protocols. Adhesive procedures are focused on the Y-TZP and tooth substrate conditioning methods. Nice esthetic and functional integration of indirect restoration at two-year follow-up confirmed the success of this conservative approach.

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Flexural Strength of 3D-Printing Resin Materials for Provisional Fixed Dental Prostheses

Materials ◽

10.3390/ma13183970 ◽

2020 ◽

Vol 13 (18) ◽

pp. 3970

Author(s):

Sang-Mo Park ◽

Ji-Man Park ◽

Seong-Kyun Kim ◽

Seong-Joo Heo ◽

Jai-Young Koak

Keyword(s):

3D Printing ◽

Flexural Strength ◽

Computer Aided Design ◽

Testing Machine ◽

Fused Deposition ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Significant Difference ◽

Fixed Dental Prostheses ◽

3D Printed

The clinical application of 3D-printed provisional restorations is increasing due to expansion of intraoral scanners, easy dental computer-aided design (CAD) software, and improved 3D printing speed. This study compared flexural strength of 3D-printed three-unit fixed dental prostheses with that of conventionally fabricated and milled restorations. A metal jig of two abutments and pontic space and an indenter for flexural strength measurement were fabricated. A three-unit fixed dental prosthesis was designed and manufactured using three additive manufacturing technologies, with subtractive manufacturing and a conventional method as controls. Digital light processing (DLP) group specimens were prepared from a polymethyl methacrylate (PMMA)-based resin and printed with a DLP printer. Stereolithography (SLA) group specimens were prepared from PMMA-based resin and printed with an SLA printer, and fused deposition modeling (FDM) group specimens were from a polylactic acid-based resin and printed with an FDM printer. Flexural strength was investigated using a universal testing machine, and the results were statistically analyzed. DLP and SLA groups had significantly higher flexural strength than the conventional group (p < 0.001). No significant difference was observed in flexural strength between DLP and SLA groups. The FDM group showed only dents but no fracture. The results of this study suggest that provisional restorations fabricated by DLP and SLA technologies provide adequate flexural strength for dental use.

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Galvanic gold plating for fixed dental prosthesis

European Journal of Dentistry ◽

10.4103/1305-7456.115426 ◽

2013 ◽

Vol 07 (03) ◽

pp. 373-376

Author(s):

Tuncer Burak Ozcelik ◽

Burak Yilmaz

Keyword(s):

Base Metal ◽

Metal Alloys ◽

Gold Plating ◽

Dental Clinics ◽

Fixed Dental Prosthesis ◽

Dental Prostheses ◽

Additional Equipment ◽

Metal Ceramic ◽

Fixed Dental Prostheses ◽

Ceramic Restorations

ABSTRACTMetal ceramic partial fixed dental prostheses have been commonly used for the replacement of missing teeth for many years. Because of an increase in the price of gold, base metal alloys have been the choice of alloy for the fabrication of metal ceramic restorations in many dental clinics. Some major disadvantages of base metals are their corrosion and the dark coloration they may cause at the crown margins. This article describes a galvanic gold-plating technique, which is used to minimize corrosion and improve the esthetics of metal ceramic restorations fabricated with Cr-Co base metal alloys. This technique involves the deposition of a 6 μm to 8 μm 24 K gold layer directly onto the Cr-Co cast prosthesis framework. The technique improves metal surface properties, making them more biocompatible and usable, however, requires additional equipment and experienced laboratory technicians. Clinical studies should be performed to corroborate the long term success of this technique.

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Reuse of Wastewaters in Agriculture by Means of Sprinkler Irrigation on a Farmland Area of 3000 ha – Large Scale Experience in Germany

Water Science & Technology ◽

10.2166/wst.1986.0088 ◽

1986 ◽

Vol 18 (9) ◽

pp. 163-173

Author(s):

R. Boll ◽

R. Kayser

Keyword(s):

Large Scale ◽

Treatment Process ◽

Treatment Plant ◽

Sprinkler Irrigation ◽

Paper Briefly ◽

Treatment Results ◽

Sewage Farm ◽

Western Germany ◽

Pre Treatment ◽

Main Components

The Braunschweig wastewater land treatment system as the largest in Western Germany serves a population of about 270.000 and has an annual flow of around 22 Mio m3. The whole treatment process consists of three main components : a pre-treatment plant as an activated sludge process, a sprinkler irrigation area of 3.000 ha of farmland and an old sewage farm of 200 ha with surface flooding. This paper briefly summarizes the experiences with management and operation of the system, the treatment results with reference to environmental impact, development of agriculture and some financial aspects.

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Determination of Environmental Factors for the Implementation of the Exploitability Index in Industrial Aggregate Mining Using Multi-Criteria Analysis

ISPRS International Journal of Geo-Information ◽

10.3390/ijgi10040196 ◽

2021 ◽

Vol 10 (4) ◽

pp. 196

Author(s):

Julio Manuel de Luis-Ruiz ◽

Benito Ramiro Salas-Menocal ◽

Gema Fernández-Maroto ◽

Rubén Pérez-Álvarez ◽

Raúl Pereda-García

Keyword(s):

Environmental Factors ◽

Environmental Factor ◽

Human Life ◽

Accurate Estimation ◽

Analytic Hierarchy ◽

Main Components ◽

Hierarchy Process ◽

Made In

The quality of human life is linked to the exploitation of mining resources. The Exploitability Index (EI) assesses the actual possibilities to enable a mine according to several factors. The environment is one of the most constraining ones, but its analysis is made in a shallow way. This research is focused on its determination, according to a new preliminary methodology that sets the main components of the environmental impact related to the development of an exploitation of industrial minerals and its weighting according to the Analytic Hierarchy Process (AHP). It is applied to the case of the ophitic outcrops in Cantabria (Spain). Twelve components are proposed and weighted with the AHP and an algorithm that allows for assigning a normalized value for the environmental factor to each deposit. Geographic Information Systems (GISs) are applied, allowing us to map a large number of components of the environmental factors. This provides a much more accurate estimation of the environmental factor, with respect to reality, and improves the traditional methodology in a substantial way. It can be established as a methodology for mining spaces planning, but it is suitable for other contexts, and it raises developing the environmental analysis before selecting the outcrop to be exploited.

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Inlay-Retained Dental Bridges—A Finite Element Analysis

Applied Sciences ◽

10.3390/app11093770 ◽

2021 ◽

Vol 11 (9) ◽

pp. 3770

Author(s):

Monica Tatarciuc ◽

George Alexandru Maftei ◽

Anca Vitalariu ◽

Ionut Luchian ◽

Ioana Martu ◽

...

Keyword(s):

Finite Element ◽

Young Patients ◽

Maximum Pressure ◽

Class Iii ◽

Element Analysis ◽

Dental Prostheses ◽

Abutment Teeth ◽

Fixed Dental Prostheses ◽

Implant Therapy ◽

The Stability

Inlay-retained dental bridges can be a viable minimally invasive alternative when patients reject the idea of implant therapy or conventional retained full-coverage fixed dental prostheses, which require more tooth preparation. Inlay-retained dental bridges are indicated in patients with good oral hygiene, low susceptibility to caries, and a minimum coronal tooth height of 5 mm. The present study aims to evaluate, through the finite element method (FEM), the stability of these types of dental bridges and the stresses on the supporting teeth, under the action of masticatory forces. The analysis revealed the distribution of the load on the bridge elements and on the retainers, highlighting the areas of maximum pressure. The results of our study demonstrate that the stress determined by the loading force cannot cause damage to the prosthetic device or to abutment teeth. Thus, it can be considered an optimal economical solution for treating class III Kennedy edentation in young patients or as a provisional pre-implant rehabilitation option. However, special attention must be paid to its design, especially in the connection area between the bridge elements, because the connectors and the retainers represent the weakest parts.

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