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Digital dentistry

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https://www.readbyqxmd.com/read/29754155/-real-patients-in-virtual-reality-the-link-between-phantom-heads-and-clinical-dentistry
#1
C M Serrano, P R Wesselink, J M Vervoorn
Preclinical training in phantom heads has until now been considered the 'gold standard' for restorative dental education, but the transition from preclinic to the treatment of real patients has remained a challenge. With the introduction of the latest generation of virtual reality simulators, students and dental practitioners can make digital impressions of their patients in virtual reality models and practice procedures in virtual reality before clinically performing them. In this way, clinical decisions can be investigated and practiced prior to actual treatment, enhancing the safety of the treatment and the self-confidence to perform it...
May 2018: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/29747636/a-novel-method-for-periapical-microsurgery-with-the-aid-of-3d-technology-a-case-report
#2
Shangzhu Ye, Shiyong Zhao, Weidong Wang, Qianzhou Jiang, Xuechao Yang
BACKGROUND: Three-dimensional (3D) technology has gained wide acceptance in dentistry. It has been used for treatment planning and surgical guidance. This case report presented a novel treatment approach to remove cortical bone and root-end during periapical surgery with the help of Cone-Beam Computed Tomography (CBCT), Computer Aided Design (CAD) and three-dimensional (3D) printing technology. CASE PRESENTATION: A 37-year-old female patient presented with a large periapical lesion of left maxillary lateral incisor and canine was referred for microsurgical endodontic surgery...
May 10, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29733219/the-photoshop-smile-design-technique
#3
Edward A McLaren, Ronald E Goldstein
Esthetic or cosmetic dentistry has become one of the main areas of dental practice emphasis and growth for the past several decades. Many articles have been written and courses taught over the years on concepts of smile design to develop a treatment plan for an esthetic outcome for the patient. The beauty of digital smile design is that patients can see the potential esthetic outcomes of treatment options in minutes. While other dental processes would still need to be completed (ie, generating casts, testing vertical changes and esthetics with a mock-up, etc), using smile design software to visualize the end result is a way to get acceptance by the patient prior to starting the physical processes...
May 2018: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29722543/effective-dose-reduction-using-collimation-function-in-digital-panoramic-radiography-and-possible-clinical-implications-in-dentistry
#4
Daniel Benchimol, Nils Kadesjö, Juha Koivisto, Xie-Qi Shi
OBJECTIVES: The primary aim was to evaluate the effective dose for a full size panoramic image and nine different panoramic protocols using collimation. The secondary aim was to estimate possible reduction of effective dose in clinical situations. METHODS: Effective dose, according to International Commission on Radiological Protection (ICRP) 2007, were determined for a full size panoramic image and nine different panoramic protocols applying collimation on an anthropomorphic Rando phantom, using metal-oxide semiconductor field-effect transistor (MOSFET) dosimeters...
May 3, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29714496/prosthetically-driven-computer-guided-implant-placement-and-restoration-using-cerec-a-case-report
#5
David Dano, Monica Stiteler, Russell Giordano
Developments in 3-dimentional (3D) diagnostic technology and advanced digital optical imaging have improved the predictability, safety, and efficiency of restoratively driven implant dentistry. Surgical procedures may now be performed in a single visit utilizing chairside, computer-aided design/computer-aided manufacturing technology and in situations when a two-stage implant protocol is indicated as demonstrated in this case. The CEREC® GALILEOS® integration workflow system was used to prosthetically plan and place an implant in the lower right mandibular first molar site, No...
May 2018: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/29692563/a-comparative-evaluation-of-intraoral-and-extraoral-digital-impressions-an-in-vivo-study
#6
Gursharan Kaur Sason, Gaurang Mistry, Rubina Tabassum, Omkar Shetty
Aim: The accuracy of a dental impression is determined by two factors: "trueness" and "precision." The scanners used in dentistry are relatively new in market, and very few studies have compared the "precision" and "trueness" of intraoral scanner with the extraoral scanner. The aim of this study was to evaluate and compare accuracy of intraoral and extraoral digital impressions. Materials and Methods: Ten dentulous participants (male/female) aged 18-45 years with an asymptomatic endodontically treated mandibular first molars with adjacent teeth present were selected for this study...
April 2018: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/29682823/additive-manufacturing-technologies-used-for-processing-polymers-current-status-and-potential-application-in-prosthetic-dentistry
#7
REVIEW
Marta Revilla-León, Mutlu Özcan
There are 7 categories of additive manufacturing (AM) technologies, and a wide variety of materials can be used to build a CAD 3D object. The present article reviews the main AM processes for polymers for dental applications: stereolithography (SLA), digital light processing (DLP), material jetting (MJ), and material extrusion (ME). The manufacturing process, accuracy, and precision of these methods will be reviewed, as well as their prosthodontic applications.
April 22, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29659639/-preventive-dentistry-10-erosive-tooth-wear
#8
M C D N J M Huysmans
Erosive tooth wear has recently been at the centre of attention and its prevalence of erosive tooth wear among adolescents in the Netherlands appears to be rising. The multifactorial nature of the aetiology of the condition makes it difficult to identify the relevant causal factors, both in individual cases and within the general population. Preventive intervention is indicated in those cases where (active) erosive tooth wear is diagnosed. Early diagnosis is important, especially in younger patients. Preventive measures, such as dietary advice and the use of fluoride, are recommended but the scientific evidence for their effectiveness is still limited...
April 2018: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/29627211/intraoral-scan-bodies-in-implant-dentistry-a-systematic-review
#9
REVIEW
Ryan M Mizumoto, Burak Yilmaz
STATEMENT OF PROBLEM: Intraoral scan body (ISB) design is highly variable and its role in the digital workflow and accuracy of digital impressions is not well understood. PURPOSE: The purpose of this systematic review was to determine the relevant reports pertaining to ISBs with regard to design and accuracy and to describe their evolution and role in the digital dentistry workflow. Special attention was placed on their key features in relation to intraoral scanning technology and the digitization process...
April 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29606657/the-role-of-digital-3d-scanned-models-in-dental-students-self-assessments-in-preclinical-operative-dentistry
#10
Cliff Lee, Hiro Kobayashi, Samuel R Lee, Hiroe Ohyama
The aim of this study was to determine how dental student self-assessment and faculty assessment of operative preparations compared for conventional visual assessment versus assessment of scanned digital 3D models. In 2016, all third-year students in the Class of 2018 (N=35) at Harvard School of Dental Medicine performed preclinical exams of Class II amalgam preparations (C2AP) and Class III composite preparations (C3CP) and completed self-assessment forms; in 2017, all third-year students in the Class of 2019 (N=34) performed the same exams...
April 2018: Journal of Dental Education
https://www.readbyqxmd.com/read/29606654/self-directed-digital-learning-when-do-dental-students-study
#11
Tate H Jackson, James Zhong, Ceib Phillips, Lorne D Koroluk
The Growth and Development (G&D) curriculum at the University of North Carolina at Chapel Hill School of Dentistry uses self-directed web-based learning modules in the place of lectures and includes scheduled self-study times during the 8 am-5 pm school hours. The aim of this study was to use direct observation to evaluate dental students' access patterns with the self-directed, web-based learning modules in relation to planned self-study time allocated across the curriculum, proximity to course examinations, and course performance...
April 2018: Journal of Dental Education
https://www.readbyqxmd.com/read/29602344/objective-assessment-of-the-contribution-of-dental-esthetics-and-facial-attractiveness-in-men-via-eye-tracking
#12
Robin S Baker, Henry W Fields, F Michael Beck, Allen R Firestone, Stephen F Rosenstiel
INTRODUCTION: Recently, greater emphasis has been placed on smile esthetics in dentistry. Eye tracking has been used to objectively evaluate attention to the dentition (mouth) in female models with different levels of dental esthetics quantified by the aesthetic component of the Index of Orthodontic Treatment Need (IOTN). This has not been accomplished in men. Our objective was to determine the visual attention to the mouth in men with different levels of dental esthetics (IOTN levels) and background facial attractiveness, for both male and female raters, using eye tracking...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29556462/assessment-of-digital-literacy-and-use-of-smart-phones-among-central-indian-dental-students
#13
Payal Saxena, Saurabh Kumar Gupta, Divya Mehrotra, Shivam Kamthan, Husain Sabir, Pratibha Katiyar, S V Sai Prasad
Objectives: Education has largely been digitalized. More so, for professional education, keeping updated in this fast paced world has become a necessary requisite and dentistry has not been left untouched. This cross sectional questionnaire based study aimed to assess the digital literacy and smartphone usage amongst the 260 Central Indian dental students including their perspicacity about smartphone/internet usage for learning purposes. The students' attitude for implementation of digital technology in study programs/education system was also evaluated...
January 2018: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/29512504/study-on-digital-teeth-selection-and-virtual-teeth-arrangement-for-complete-denture
#14
Xiaoling Yu, Xiaosheng Cheng, Ning Dai, Hu Chen, Changjiang Yu, Yuchun Sun
BACKGROUND AND OBJECTIVE: In dentistry, the complete denture is a conventional treatment for edentulous patients. The computer-aided design and computer-aided manufacturing (CAD/CAM) has been applied on the digital complete denture which is developed rapidly. Tooth selection and arrangement is one of the most important parts in digital complete denture. In this paper, we propose a new method of personalized teeth arrangement. METHODS: This paper presents a method of arranging teeth virtually for a complete denture...
March 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29509023/accuracy-of-three-dimensional-dental-resin-models-created-by-fused-deposition-modeling-stereolithography-and-polyjet-prototype-technologies-a-comparative-study
#15
Raymund E Rebong, Kelton T Stewart, Achint Utreja, Ahmed A Ghoneima
OBJECTIVES: The aim of this study was to assess the dimensional accuracy of fused deposition modeling (FDM)-, Polyjet-, and stereolithography (SLA)-produced models by comparing them to traditional plaster casts. MATERIALS AND METHODS: A total of 12 maxillary and mandibular posttreatment orthodontic plaster casts were selected from the archives of the Orthodontic Department at the Indiana University School of Dentistry. Plaster models were scanned, saved as stereolithography files, and printed as physical models using three different three-dimensional (3D) printers: Makerbot Replicator (FDM), 3D Systems SLA 6000 (SLA), and Objet Eden500V (Polyjet)...
May 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29502223/third-molar-mineralization-in-relation-to-chronologic-age-estimation-of-the-han-in-central-southern-china
#16
Ying Liu, Kun Geng, Yanhao Chu, Mindi Xu, Lagabaiyila Zha
The purpose of this study is to provide a forensic reference data about estimating chronologic age by evaluating the third molar mineralization of Han in central southern China. The mineralization degree of third molars was assessed by Demirjian's classification with modification for 2519 digital orthopantomograms (1190 males, 1329 females; age 8-23 years). The mean ages of the initial mineralization and the crown completion of third molars were around 9.66 and 13.88 years old in males and 9.52 and 14.09 years old in females...
March 3, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29492170/digital-dentistry-the-revolution-has-begun
#17
EDITORIAL
Francesco Mangano Guest Editor
No abstract text is available yet for this article.
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29491201/evaluation-of-water-absorption-properties-and-fabrication-of-hollow-obturator-model-using-3d-digital-dentistry
#18
Shigeto Koyama, Hiroaki Kato, Takayuki Harata, Naoko Sato, Soshi Hanawa, Keiichi Sasaki
Fluid accumulation in the hollow spaces of obturator is a continuing problem when fabricating hollow obturator prostheses using the conventional method. To address this problem, the three-dimensional (3D) digital technology was used to evaluate water absorption in the inner hollow obturator spaces. Solid and hollow obturator specimens were fabricated using a 3D printer with photocurable resin. Then, the hermeticity was examined by leak testing. These specimens were immersed in distilled water at 37°C. Each specimen was weighed every 24 h for 120 days, and weight changes between each group were compared...
February 27, 2018: Dental Materials Journal
https://www.readbyqxmd.com/read/29461541/-the-use-of-scientific-journals-and-professional-periodicals-by-dutch-dental-students
#19
P Panahi Moghaddam, W G Brands, H S Brand
In the present study, the extent to which dental students in Amsterdam, Groningen and Nijmegen consult scientific journals and professional periodicals was explored by means of a digital questionnaire. 333 dental students (20% response rate) participated in this study, 69% of whom had experience in conducting scientific research. 65% of the students had a subscription to a dental journal. Of the Dutch-language dental journals, the 'Nederlands Tijdschrift voor Tandheelkunde' [Netherlands Journal for Dentistry] and the 'Nederlands Tandartsenblad' [Dutch Dentists' Journal] are frequently consulted journals...
February 2018: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/29438796/validation-of-assessment-of-intraoral-digital-photography-for-evaluation-of-dental-restorations-in-clinical-research
#20
Cácia Signori, Kauê Collares, Catarina B F Cumerlato, Marcos B Correa, Niek J M Opdam, Maximiliano S Cenci
OBJECTIVES: The aim of this study was to investigate the validity of assessment of intraoral digital photography in the evaluation of dental restorations. METHODS: Intraoral photographs of anterior and posterior restorations were classified based on FDI criteria according to the need for intervention: no intervention, repair and replacement. Evaluations were performed by an experienced expert in restorative dentistry (gold standard evaluator) and 3 trained dentists (consensus)...
April 2018: Journal of Dentistry
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