scholarly journals Properties of CAD/CAM 3D Printing Dental Materials and Their Clinical Applications in Orthodontics: Where Are We Now?

2022 ◽  
Vol 12 (2) ◽  
pp. 551
Author(s):  
Andrea Scribante ◽  
Simone Gallo ◽  
Maurizio Pascadopoli ◽  
Pietro Canzi ◽  
Stefania Marconi ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
New Technology ◽  
Dental Materials ◽  
Digital Technologies ◽  
Clinical Applications ◽  
Digital Data ◽  
Advantages And Disadvantages ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

In the last years, both medicine and dentistry have come across a revolution represented by the introduction of more and more digital technologies for both diagnostic and therapeutic purposes. Additive manufacturing is a relatively new technology consisting of a computer-aided design and computer-aided manufacturing (CAD/CAM) workflow, which allows the substitution of many materials with digital data. This process requires three fundamental steps represented by the digitalization of an item through a scanner, the editing of the data acquired using a software, and the manufacturing technology to transform the digital data into a final product, respectively. This narrative review aims to discuss the recent introduction in dentistry of the abovementioned digital workflow. The main advantages and disadvantages of the process will be discussed, along with a brief description of the possible applications on orthodontics.

scholarly journals Current Status of Digital Complete Dentures Technology

Prosthesis ◽  
2021 ◽  
Vol 3 (3) ◽  
pp. 229-244
Author(s):  
Aristeidis Villias ◽  
Hercules Karkazis ◽  
Stavros Yannikakis ◽  
Antonios Theocharopoulos ◽  
Nikitas Sykaras ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Current Knowledge ◽  
New Technology ◽  
Current Status ◽  
Complete Dentures ◽  
Supporting Surface ◽  
Digital Workflow ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

Fabrication of complete dentures (CDs) utilizing computer-aided design and computer-aided manufacturing (CAD/CAM) methods has attracted a lot of attention. The purpose of this paper was to summarize current knowledge about digital CDs and the relevant technology, and to present the application of the new technology in a dental geriatrics case. Initially, some of the challenges regarding digitization of the oral mucosa as a supporting surface of the CDs’ intaglio surface are listed. Next, a brief introduction of the CAD software capabilities regarding CDs is presented. The latest CAM additive and subtractive techniques for CDs are following. Subsequently, the consecutive steps for the construction of a digital CD as part of the prosthodontic treatment of a 90-year-old ambulative female patient are presented. Finally, some considerations about the digital workflow in CD manufacturing are discussed. In conclusion, the new digital technology has clear advantages; however, implementation requires careful planning. The digital workflow is applicable and versatile.

scholarly journals Adhesive Bonding to Computer-aided Design/Computer-aided Manufacturing Esthetic Dental Materials: An Overview

2017 ◽  
Vol 18 (7) ◽  
pp. 622-626 ◽  
Author(s):  
Shilpa H Bhandi ◽  
Mohamed Moustafa Awad ◽  
H Alqahtani ◽  
A Al-Mudahi ◽  
MS Murayshed ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Computer Aided Design ◽  
Adhesive Bonding ◽  
Dental Materials ◽  
Computer Aided Manufacturing ◽  
Treatment Methods ◽  
Computer Aided ◽  
Restorative Materials ◽  
Cad Cam ◽  
Aided Design

ABSTRACT Aim To review the adhesive bonding to different computer-aided design/computer-aided manufacturing (CAD/CAM) esthetic restorative materials. Background The use of CAD/CAM esthetic restorative materials has gained popularity in recent years. Several CAD/ CAM esthetic restorative materials are commercially available. Adhesive bonding is a major determinant of success of CAD/ CAM restorations. Review result An account of the currently available bonding strategies are discussed with their rationale in various CAD/ CAM materials. Conclusion Different surface treatment methods as well as adhesion promoters can be used to achieve reliable bonding of CAD/CAM restorative materials. Selection of bonding strategy to such material is determined based on its composition. Further evidence is required to evaluate the effect of new surface treatment methods, such as nonthermal atmospheric plasma and self-etching ceramic primer on bonding to different dental ceramics. Clinical significance An understanding of the currently available bonding strategies to CA/CAM materials can help the clinician to select the most indicated system for each category of materials. How to cite this article Awad MM, Alqahtani H, Al-Mudahi A, Murayshed MS, Alrahlah A, Bhandi SH. Adhesive Bonding to Computer-aided Design/Computer-aided Manufacturing Esthetic Dental Materials: An Overview. J Contemp Dent Pract 2017;18(7):622-626.

scholarly journals The Evolution of Dental Materials for Hybrid Prosthesis

2014 ◽  
Vol 8 (1) ◽  
pp. 85-94 ◽  
Author(s):  
Jorge Gonzalez
Keyword(s):  
Computer Aided Design ◽  
Adult Population ◽  
Dental Materials ◽  
Missing Teeth ◽  
Dental Restorations ◽  
Computer Aided ◽  
Cad Cam ◽  
Hybrid Prosthesis ◽  
Aided Design ◽  
Older Adult Population

Since the immemorial, the replacement of missing teeth has been a medical and cosmetic necessity for human kind. Nowadays, middle-aged population groups have experienced improved oral health, as compared to previous generations, and the percentage of edentulous adults can be expected to further decline. However, with the continued increase in the number of older adult population, it is anticipated that the need for some form of full-mouth restoration might increase from 53.8 million in 1991 to 61 million in 2020 [1]. Denture prosthetics has undergone many development stages since the first dentures were fabricated. The introduction of computer-aided design/computer aided manufacturing (CAD/CAM) has resulted in a more accurate manufacturing of prosthetic frameworks, greater accuracy of dental restorations, and in particular, implant supported prosthesis.

The 2-Visit CAD-CAM Implant-Retained Overdenture: A Clinical Report

2014 ◽  
Vol 40 (6) ◽  
pp. 722-728 ◽  
Author(s):  
Avinash S. Bidra
Keyword(s):  
United States ◽  
Computer Aided Design ◽  
Scientific Literature ◽  
The United States ◽  
Clinical Report ◽  
Complete Dentures ◽  
Advantages And Disadvantages ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

Recently, computer-aided technology has become commercially available in the United States for fabrication of complete dentures. Manufacturers offering this technology require exclusive clinical and laboratory protocols that sharply contrast with the traditional paradigms of complete denture therapy. These protocols allow fabrication of complete dentures in only 2 clinical appointments. Currently, there are no clinical reports in the scientific literature describing the use of this technology for overdentures. This article describes the successful use of computer aided design-computer aided machining (CAD-CAM) technology for prosthodontic phase of fabrication of a mandibular implant-retained overdenture in only 2 clinical appointments. A discussion of the techniques, rationale, indications, advantages, and disadvantages of using CAD-CAM technology for complete dentures and overdentures are described in this article.

scholarly journals Orthodontic digital workflow: devices and clinical applications

2021 ◽  
Vol 26 (6) ◽  
Author(s):  
Taís de Morais Alves da CUNHA ◽  
Inessa da Silva BARBOSA ◽  
Karolinne Kaila PALMA
Keyword(s):  
Digital Technology ◽  
Computer Aided Design ◽  
Treatment Time ◽  
Clinical Applications ◽  
Digital Workflow ◽  
Fixed Appliance ◽  
Computer Aided ◽  
Cad Cam ◽  
Manufacturing Applications ◽  
Aided Design

ABSTRACT Introduction: The digital technology has contributed to improve and simplify diagnosis, treatment planning and execution in Orthodontics. Among CAD/CAM system (Computer-Aided Design / Computer-Aided Manufacturing) applications in Orthodontics, we highlight the installation and removal of fixed appliance, clear aligners, customized appliances, and retainers fabricated in digital environment. This approach has several advantages for practitioner and patient, as it enhances appliances precision, directly interferes in treatment time and predictability. Even with all the benefits arising from the digital workflow, few orthodontists have adopted this technique in their clinical practice, most due to high cost and lack of technical preparation for proper execution. Objectives: Thus, given the importance of digital technology to improve specialty performance and the still incipient incorporation of digital flow in Orthodontics, the purpose of this article is to describe the available resources and clinical applications of the CAD/CAM technology in Orthodontics.

scholarly journals A review of computer-aided design/computer-aided manufacture techniques for removable denture fabrication

2016 ◽  
Vol 10 (02) ◽  
pp. 286-291 ◽  
Author(s):  
Mehmet Selim Bilgin ◽  
Ebru Nur Baytaroğlu ◽  
Ali Erdem ◽  
Erhan Dilber
Keyword(s):  
Computer Aided Design ◽  
Web Of Science ◽  
Rapid Manufacturing ◽  
Advantages And Disadvantages ◽  
Electronic Search ◽  
Removable Denture ◽  
Computer Aided ◽  
Cad Cam ◽  
Technological Developments ◽  
Aided Design

ABSTRACTThe aim of this review was to investigate usage of computer-aided design/computer-aided manufacture (CAD/CAM) such as milling and rapid prototyping (RP) technologies for removable denture fabrication. An electronic search was conducted in the PubMed/MEDLINE, ScienceDirect, Google Scholar, and Web of Science databases. Databases were searched from 1987 to 2014. The search was performed using a variety of keywords including CAD/CAM, complete/partial dentures, RP, rapid manufacturing, digitally designed, milled, computerized, and machined. The identified developments (in chronological order), techniques, advantages, and disadvantages of CAD/CAM and RP for removable denture fabrication are summarized. Using a variety of keywords and aiming to find the topic, 78 publications were initially searched. For the main topic, the abstract of these 78 articles were scanned, and 52 publications were selected for reading in detail. Full-text of these articles was gained and searched in detail. Totally, 40 articles that discussed the techniques, advantages, and disadvantages of CAD/CAM and RP for removable denture fabrication and the articles were incorporated in this review. Totally, 16 of the papers summarized in the table. Following review of all relevant publications, it can be concluded that current innovations and technological developments of CAD/CAM and RP allow the digitally planning and manufacturing of removable dentures from start to finish. As a result according to the literature review CAD/CAM techniques and supportive maxillomandibular relationship transfer devices are growing fast. In the close future, fabricating removable dentures will become medical informatics instead of needing a technical staff and procedures. However the methods have several limitations for now.

scholarly journals Effect of Thermocycling on the Bond Strength of Self-Adhesive Resin Cements Used for Luting CAD/CAM Ceramics to Human Dentin

2022 ◽  
Vol 23 (2) ◽  
pp. 745
Author(s):  
Andrzej Malysa ◽  
Joanna Wezgowiec ◽  
Wojciech Grzebieluch ◽  
Dariusz P. Danel ◽  
Mieszko Wieckiewicz
Keyword(s):  
Bond Strength ◽  
Computer Aided Design ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Dental Materials ◽  
Resin Cements ◽  
Computer Aided ◽  
Human Dentin ◽  
Cad Cam ◽  
Aided Design

The aim of the study was to evaluate the influence of thermocycling on the shear bond strength of self-adhesive, self-etching resin cements luted to human dentin and computer-aided design/computer-aided manufacturing (CAD/CAM) ceramics. Three modern self-adhesive dental cements (Maxcem Elite, RelyX U200, Panavia SA) were used to lute three CAD/CAM ceramics (IPS Empress CAD, IPS e.max CAD, IPS e.max ZirCAD) onto the dentin. One conventional cement (Panavia V5) served as a control. After preparation, the samples were subjected to thermocycling as a method of artificial aging of dental materials applied to simulate long-term use in oral conditions. Shear bond strength was evaluated according to PN-EN ISO 29022:2013-10 and failure modes were observed under a light microscope. Statistical analysis was performed. The study demonstrated that a combination of ceramics and cements directly impacts the bond strength. The highest bond strength was observed in Panavia V5, lower in Panavia SA and Maxcem Elite and the lowest–in RelyX U200. Adhesive failure between human dentin and cements was the most common failure mode. Moreover, thermocycling highly decreased bond strength of self-adhesive, self-etching cements.

scholarly journals Computer Aided Design / Computer Aided Manufacturing (CAD / CAM) Post and Core - A Review

2021 ◽  
Vol 10 (36) ◽  
pp. 3143-3151
Author(s):  
Nor Faharina Abdul Hamid ◽  
Nurul Jannah Zulkefle ◽  
Tengku Fazrina Tengku Mohd Ariff ◽  
ZuryatiAb Ghani ◽  
Rohana Ahmad
Keyword(s):  
Computer Aided Design ◽  
Case Reports ◽  
Journal Article ◽  
Computer Aided Manufacturing ◽  
Advantages And Disadvantages ◽  
Custom Made ◽  
Computer Aided ◽  
Cad Cam ◽  
Post And Core ◽  
Aided Design

BACKGROUND Nowadays, the use of computer aided design / computer aided manufacturing (CAD / CAM) in fabricating indirect restoration such as onlay, crown and bridge has increased tremendously. However, there is lack of clinical information and evidence on current material and fabrication techniques of CAD / CAM post and core. This paper describes the classification of the post and core system and review current perspectives on recent development of CAD / CAM post and core. An electronic search of the literature was performed via PubMed and Scopus database, using the keyword (post and core) and (CAD / CAM) and (CAD / CAM post and core) as MeSH term. Articles eligible for inclusion in the present review were published in English, journal article and dated from January 2000 until November 2020. A total of 31 publications consisting of 18 in-vitro studies, 7 case reports, 4 finite element analysis and 2 clinical techniques were included in this review. Analysis parameters included are options of chairside CAD / CAM materials, CAD / CAM system and milling machine used, advantages and disadvantages and future direction of CAD / CAM post and core. CAD /CAM post and core can be alternative option as compared to the custom-made post and core and prefabricated post and core. KEY WORDS Computer - Aided Design, Computer - Aided Manufacturing, Dental Material, Indirect Restoration, Post and Core

Structural Analysis of Product and Computer-Aided Assembly Planning in AssemBL Software Package

2018 ◽  
pp. 11-33
Author(s):  
A. N. Bozhko
Keyword(s):  
Computer Aided Design ◽  
State Of The Art ◽  
Graph Model ◽  
Design System ◽  
Assembly Planning ◽  
Complex Products ◽  
Assembly Sequences ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

Computer-aided design of assembly processes (Computer aided assembly planning, CAAP) of complex products is an important and urgent problem of state-of-the-art information technologies. Intensive research on CAAP has been underway since the 1980s. Meanwhile, specialized design systems were created to provide synthesis of assembly plans and product decompositions into assembly units. Such systems as ASPE, RAPID, XAP / 1, FLAPS, Archimedes, PRELEIDES, HAP, etc. can be given, as an example. These experimental developments did not get widespread use in industry, since they are based on the models of products with limited adequacy and require an expert’s active involvement in preparing initial information. The design tools for the state-of-the-art full-featured CAD/CAM systems (Siemens NX, Dassault CATIA and PTC Creo Elements / Pro), which are designed to provide CAAP, mainly take into account the geometric constraints that the design imposes on design solutions. These systems often synthesize technologically incorrect assembly sequences in which known technological heuristics are violated, for example orderliness in accuracy, consistency with the system of dimension chains, etc.An AssemBL software application package has been developed for a structured analysis of products and a synthesis of assembly plans and decompositions. The AssemBL uses a hyper-graph model of a product that correctly describes coherent and sequential assembly operations and processes. In terms of the hyper-graph model, an assembly operation is described as shrinkage of edge, an assembly plan is a sequence of shrinkages that converts a hyper-graph into the point, and a decomposition of product into assembly units is a hyper-graph partition into sub-graphs.The AssemBL solves the problem of minimizing the number of direct checks for geometric solvability when assembling complex products. This task is posed as a plus-sum two-person game of bicoloured brushing of an ordered set. In the paradigm of this model, the brushing operation is to check a certain structured fragment for solvability by collision detection methods. A rational brushing strategy minimizes the number of such checks.The package is integrated into the Siemens NX 10.0 computer-aided design system. This solution allowed us to combine specialized AssemBL tools with a developed toolkit of one of the most powerful and popular integrated CAD/CAM /CAE systems.

scholarly journals Evaluation of the Feasibility of NaCaPO4-Blended Zirconia as a New CAD/CAM Material for Dental Restoration

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3819
Author(s):  
Ting-Hsun Lan ◽  
Yu-Feng Chen ◽  
Yen-Yun Wang ◽  
Mitch M. C. Chou
Keyword(s):  
Computer Aided Design ◽  
Optical Microscope ◽  
Dental Restoration ◽  
Numerical Control ◽  
Test Results ◽  
Cnc Machine ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design ◽  
Better Than

The computer-aided design/computer-aided manufacturing (CAD/CAM) fabrication technique has become one of the hottest topics in the dental field. This technology can be applied to fixed partial dentures, removable dentures, and implant prostheses. This study aimed to evaluate the feasibility of NaCaPO4-blended zirconia as a new CAD/CAM material. Eleven different proportional samples of zirconia and NaCaPO4 (xZyN) were prepared and characterized by X-ray diffractometry (XRD) and Vickers microhardness, and the milling property of these new samples was tested via a digital optical microscope. After calcination at 950 °C for 4 h, XRD results showed that the intensity of tetragonal ZrO2 gradually decreased with an increase in the content of NaCaPO4. Furthermore, with the increase in NaCaPO4 content, the sintering became more obvious, which improved the densification of the sintered body and reduced its porosity. Specimens went through milling by a computer numerical control (CNC) machine, and the marginal integrity revealed that being sintered at 1350 °C was better than being sintered at 950 °C. Moreover, 7Z3N showed better marginal fit than that of 6Z4N among thirty-six samples when sintered at 1350 °C (p < 0.05). The milling test results revealed that 7Z3N could be a new CAD/CAM material for dental restoration use in the future.

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