Figure - available from: Clinical Oral Investigations
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3D colored map of the marginal surfaces illustrating the fit between the master die and the intaglio of the milled crown
Source publication
Objectives
The purpose of this in vitro study was to assess and compare the marginal and internal fit of machine-milled crowns designed using three different CAD software programs.Materials and methodsDigital impressions of the master zirconia casts containing the prepared molar were obtained using an intraoral scanner. The obtained standard tessel...
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Fracture is the major clinical failure modality of ceramic veneers. Effect of tooth preparation on the strength of ceramic veneers still remains a controversial issue. Purpose of the study: Our in-vitro study was aimed at exploring the possible association between tooth preparation and strength of ceramic veneers. Materials and Methods: Forty extra...
Introduction
This in vitro study aimed to compare the load-to-failure values of two different ceramic veneers (IPS e.max Press [Ivoclar Vivadent] and Vintage lithium disilicate [LD] press [Shofu]) with incisal preparation designs under standardized conditions.
Materials and Methods
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Statement of the problem:
Various default values in each software can eventually lead to different crown thicknesses and affect their compressive strength.
Purpose:
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Materials and method:...
Objective
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Methods
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Citations
... In the present study, the majority of respondents evaluated the aesthetics, durability and value for money aspects of CAD/CAM prosthetics as "very good". Previous studies have reported that the esthetic results and marginal fit of dentures can vary depending on the dental CAD software used in the design process [20]. ...
Digital dentistry has been introduced for over 40 years, but their overspread use has become available in the last two decades, after year 2000. First to introduce it in dentistry was a dentist, but the widespread of the digital dentistry was carried out mostly by dental technicians. In Romania, digital dentistry had become available with state funding projects for the dental field. Objective The aim of the study was a broader assessment of the use of CAD/CAM systems in dental practices and dental technology laboratories. Materials and method. The study consisted in a survey based on a questionnaire, distributed in electronic form, applied to two branches of dentistry, respectively, for dentists and dental technicians. The study was attended by dentists and dental technicians, from the urban environment. Results were analyzed using statistical methods with Microsoft Excel. Results. The results of the present study showed a high degree of knowledge regarding CAD/CAM technology, as most of the participants were aware of the introduction and use of digital technology in dentistry. Majority of dental technicians have introduced and have worked with CAD_CAM systems, comparative with dentists, which only a third part worked usually with these technologies. Conclusions. Even though digital dentistry is a modern technology with advantages, there are still some concerns from dentists and technicians about the quality and costs of CAD/CAM restorations.
... Digital dental workflows, which are more commonly used for manufacturing dental prostheses than conventional workflows [1][2][3], typically use a three-dimensional (3D) scanning process to produce virtual casts and dental computer-aided design and manufacturing (CAD/CAM) processes to create dental prostheses [4][5][6]. Among these processes, the design process is typically performed using dental CAD software [7][8][9][10], and the final prostheses are developed based on virtual casts. ...
... Previous studies have reported that the aesthetic outcomes and marginal fit of dental prostheses can vary depending on the dental CAD software used in the design process [1,2]. Therefore, dental personnel have no choice but to take design outcomes into consideration when selecting dental CAD software. ...
Abstract: This study aimed to evaluate the needs of dentists, dental technicians, dental hygienists, and dental-related workers in terms of dental computer-aided design (CAD) software and artificial intelligence (AI). Based on a factor analysis, 57 survey items were assigned to six categories: (a) considerations when purchasing dental CAD software; (b) prosthesis design process; (c) dental CAD function; (d) use of AI dental CAD crown and denture design; (e) impact of AI; and (f) im-provements in AI features. Overall, 93 participants were included in the study, and the reliability of the resultant survey data was estimated using Cronbach’s alpha coefficient. Statistically significant factors in each category were identified using one-way analysis of variance and Tukey’s honestly significant difference test (α = 0.05). The results revealed that design quality, design convenience and reproducibility, margin line setting, and automatic margin setting were considered most important in their respective categories (p < 0.05). There were also significant differences in the importance of certain items, such as branding importance and functional diversity, among dif-ferent dental personnel groups (p < 0.05). Design speed and convenience were also found to be more important to dentists and dental hygienists compared to other dental personnel (p < 0.05). The importance of specific survey items varied significantly based on age, dental personnel, and work experience groups. Dental personnel, such as dentists and dental technicians, assigned greater importance to certain factors, such as branding, functional diversity, design speed, and compati-bility with CAM equipment, compared to other occupational groups.
