keyword
https://read.qxmd.com/read/33001661/digital-workflow-with-a-triple-scanning-technique-for-implant-rehabilitation-in-the-esthetic-zone
#1
Panos Papaspyridakos, Alissa Mariano, Andre De Souza, Elli Kotina, Yukio Kudara, Kiho Kang
This article describes the case of a partially edentulous patient who had undergone template-guided implant placement and was treated using a triple digital scanning protocol that allowed for CAD/CAM prosthodontic rehabilitation in a complete digital workflow. At the impression appointment, the provisional implant-supported screw-retained prosthesis was digitally scanned both intraorally (first scan) and, after removal, extraorally (second scan). After the second scan, scan bodies were placed intraorally and an implant-level digital impression was taken (third scan)...
October 2020: Compendium of Continuing Education in Dentistry
https://read.qxmd.com/read/32956439/a-combination-of-cad-cam-fabricated-zirconia-milled-bars-and-a-gold-electroplated-superstructure-framework-for-an-implant-supported-overdenture-a-case-report
#2
Tadej Ostrc, Blaž Berce, Ksenija Rener-Sitar
A 54-year-old woman presented with severe maxillary resorption, which resulted in an unstable maxillary removable denture. Due to poor anatomical conditions, the prosthodontic solution posed for the patient was an implant-supported maxillary overdenture based on four implants. This report presents the detailed workflow for CAD/CAM-fabricated, individually milled zirconia bars and an electroplated superstructure framework for an implant-supported removable overdenture, which enabled good retention and an optimal esthetic result...
September 2020: International Journal of Prosthodontics
https://read.qxmd.com/read/32932983/monitoring-alveolar-ridge-remodelling-post-extraction-using-sequential-intraoral-scanning-over-a-period-of-four-months
#3
Khaled E Ahmed
The potential applications of computer-aided design/computer-aided manufacturing (CAD/CAM) and intraoral scanning exceed the delivery of standard prosthodontic interventions. The aim of this study was to clinically present a developed assessment technique, that relies on the use of sequential intraoral scanning, three-dimensional superimposition, and 2D and 3D deviation analyses based on a standardised protocol, as an auxiliary tool in monitoring dimensional changes of residual ridge post-extraction with a follow-up period of four months...
September 11, 2020: International Journal of Environmental Research and Public Health
https://read.qxmd.com/read/32741366/the-use-of-peek-in-digital-prosthodontics-a-narrative-review
#4
REVIEW
Ioannis Papathanasiou, Phophi Kamposiora, George Papavasiliou, Marco Ferrari
BACKGROUND: Advanced computer-aided design and computer-aided manufacturing (CAD-CAM) technology led to the introduction of an increasing number of machinable materials suitable for dental prostheses. One of these materials is polyetheretherketone (PEEK), a high performance polymer recently used in dentistry with favorable physical, mechanical and chemical properties. The purpose of this study was to review the current published literature on the use of PEEK for the fabrication of dental prostheses with CAD-CAM techniques...
August 2, 2020: BMC Oral Health
https://read.qxmd.com/read/32320189/monolithic-cad-cam-complete-overdentures-for-a-pedodontic-patient-with-dentinogenesis-imperfecta-and-limited-prosthetic-space-a-clinical-report
#5
Catherine Millet, Maxime Ducret, Christine Khoury, François Virard
Children affected by dentinogenesis imperfecta (DI) require restorative techniques or prosthodontic management to minimize the functional and psychosocial impacts of the condition. In cases of excessive wear of the deciduous dentition and moderate cooperation from the child, removable complete overdenture prostheses are the most suitable treatment option. However, limited restorative space is a technical challenge for the placement of such prostheses. Advances in digital technologies can help assist in the fabrication of monolithic prostheses with reduced thickness...
May 2020: International Journal of Prosthodontics
https://read.qxmd.com/read/32173362/in-vitro-precision-evaluation-of-blue-light-scanning-of-abutment-teeth-made-with-impressions-and-dental-stone-casts-according-to-different-3d-superimposition-methods
#6
Jin-Hun Jeon
PURPOSE: The purpose of this in vitro study was to determine the precision evaluation of blue light scanning of abutment teeth impressions and dental stone casts according to different 3D superimposition methods. METHODS: Impressions and dental stone casts of the maxillary canine, 1st premolar, and 1st molar were fixed; they were repeatedly scanned 11 times, (6 types, total n = 66). Stereolithography (STL) files were superimposed one by one, and used to obtain 10 root mean square (RMS) values with the 2 superimposition methods (best-fit-alignment, no control)...
March 12, 2020: Journal of Prosthodontic Research
https://read.qxmd.com/read/32035634/minimally-invasive-prosthodontic-correction-of-pseudo-class-iii-malocclusion-by-implementing-a-systematic-digital-workflow-a-clinical-report
#7
Doaa Taha, Ahmed Abu-Elfadl, Tarek Morsi
This clinical report describes the digital workflow for implementing different virtual and digital aids for the restoration of tooth wear and loss of occlusal vertical dimension (OVD). This conservative approach was implemented in an adult with pseudo class III malocclusion by using computer-aided design and computer-aided manufacturing (CAD-CAM) monolithic lithium disilicate ceramic restorations.
February 5, 2020: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/31870519/virtual-planning-simultaneous-dental-implantation-and-cad-cam-plate-fixation-a-paradigm-change-in-maxillofacial-reconstruction
#8
T Seier, L Hingsammer, P Schumann, T Gander, M Rücker, M Lanzer
Prosthetic rehabilitation in patients undergoing reconstructive surgery using vascularized free flaps is challenging, and functional rehabilitation of the patient with a fixed prosthesis is rare. Virtually planned maxillofacial reconstruction including simultaneous dental implantation according to the prosthodontic ideal position of the implants could further enhance dental rehabilitation. The data of 21 patients undergoing fibula free flap reconstructive surgery with CAD/CAM patient-specific reconstruction plates during the years 2015-2018 were analysed, including the applicability of the virtual plan, flap survival, duration of surgery, ischemia time, simultaneous dental implantation, implant exposure, and postoperative complications...
July 2020: International Journal of Oral and Maxillofacial Surgery
https://read.qxmd.com/read/31823502/cad-cam-applications-for-transitional-bonding-to-restore-occlusal-vertical-dimension
#9
Brian P LeSage
OBJECTIVE: Explore the best technique for achieving stable and comfortable occlusion. This is critical for long-term oral health and the foundation of durable esthetic, restorative, periodontal, and prosthodontic treatments. CLINICAL CONSIDERATIONS: Various techniques and therapies have been proposed for establishing, determining, and restoring ideal centric relation (CR) and vertical dimension of occlusion (VDO) in patients who require restorations and/or full-mouth rehabilitation...
December 11, 2019: Journal of Esthetic and Restorative Dentistry
https://read.qxmd.com/read/31753414/prosthodontics-dental-materials-from-conventional-to-unconventional
#10
REVIEW
Fatima Saeed, Nawshad Muhammad, Abdul Samad Khan, Faiza Sharif, Abdur Rahim, Pervaiz Ahmad, Masooma Irfan
New inventions and innovations in the field of dentistry have potential applications to satisfy the patient's demand. In prosthodontics, a dental prosthesis plays a major role in improving the quality of oral health care. Currently, the trends have shifted towards the implants and implant-supported prosthesis for the replacement of missing teeth. Conventional dentures are patient's preference mainly due to financial constraints. In an attempt to find solutions to current problems, we have come across new materials zirconium, titanium and new inventions like flexible dentures, fenestrated dentures, and CAD/CAM fabricated dentures...
January 2020: Materials Science & Engineering. C, Materials for Biological Applications
https://read.qxmd.com/read/31607010/-application-of-and-progress-in-computer-aided-design-and-computer-aided-manufacture-materials-by-chairside-digital-workflow-in-implant-prosthodontics
#11
Z D Wu, D H Wei, P Di, Y Lin
With the emergence and development of new dental materials, chairside computer aided design/computer aided manufacture (CAD/CAM) materials, as an important part of digital technology, is gaining increasing progress to meet the needs of implant restorations and digital processing technology for the mechanical properties, chemical stability, biocompatibility and processing properties. A large number of in-vitro experiments and clinical studies have been reported on various materials, such as polycrystalline ceramic, glass ceramic and indirect composite...
October 9, 2019: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://read.qxmd.com/read/31546800/peri-implant-soft-tissue-conditioning-by-means-of-customized-healing-abutment-a-randomized-controlled-clinical-trial
#12
Mario Beretta, Pier Paolo Poli, Silvia Pieriboni, Sebastian Tansella, Mattia Manfredini, Marco Cicciù, Carlo Maiorana
INTRODUCTION: An optimal aesthetic implant restoration is a combination of a visually pleasing prosthesis and adequate surrounding peri-implant soft tissue architecture. This study describes a novel workflow for one-step formation of the supra-implant emergence profile. MATERIALS AND METHODS: Two randomized groups were selected. Ten control group participants received standard healing screws at the surgical stage. Ten individualized healing abutments were Computer aided Design/Computer aided Manufacturing (CAD/CAM)-fabricated out of polyether ether ketone (PEEK) restoration material in a fully digital workflow and seated at the surgical stage in the test group...
September 19, 2019: Materials
https://read.qxmd.com/read/31379234/predicting-the-debonding-of-cad-cam-composite-resin-crowns-with-ai
#13
S Yamaguchi, C Lee, O Karaer, S Ban, A Mine, S Imazato
A preventive measure for debonding has not been established and is highly desirable to improve the survival rate of computer-aided design/computer-aided manufacturing (CAD/CAM) composite resin (CR) crowns. The aim of this study was to assess the usefulness of deep learning with a convolution neural network (CNN) method to predict the debonding probability of CAD/CAM CR crowns from 2-dimensional images captured from 3-dimensional (3D) stereolithography models of a die scanned by a 3D oral scanner. All cases of CAD/CAM CR crowns were manufactured from April 2014 to November 2015 at the Division of Prosthodontics, Osaka University Dental Hospital (Ethical Review Board at Osaka University, approval H27-E11)...
October 2019: Journal of Dental Research
https://read.qxmd.com/read/31322586/-criterion-assessment-system-of-the-actual-level-of-expertise-of-dental-professionals-practicing-implant-dentistry
#14
R A Rozov, V N Trezubov, A L Urakov, G S Azarin, A P Reshetnikov, M V Kopylov
The aim of the study was to develop criterion assessment system of the actual level of expertise of dental professionals practicing Implant dentistry. The study comprised fifteen dental experts aged from 35 to 47 years with the average 15 years clinical experience. For evaluation of the clinical portfolio of the dentists we developed 10 reference points and to ensure unification of the assessment approach we organised consensus methodical conference for our expert group. Scores were applied by parity of reasoning with point-rating system applied in continuing education programs of Medical University...
2019: Stomatologii︠a︡
https://read.qxmd.com/read/31127218/advances-in-materials-and-concepts-in-fixed-prosthodontics-a-selection-of-possible-treatment-modalities
#15
Daniel Edelhoff, Michael Stimmelmayr, Josef Schweiger, M Oliver Ahlers, Jan-Frederik Güth
The introduction of adhesive techniques in combination with translucent restorative materials has greatly influenced treatment concepts in fixed prosthodontics. Modern production technologies offer access to new polymer materials that provide innovative pre-treatment options for complex prosthetic rehabilitations. Additionally, computer-aided design and manufacturing (CAD/CAM) provides access to new ceramic types and thus extends the range of indications for metal-free restorative options. With these developments, important changes of treatment concepts in fixed prosthodontics have occurred which affect the professional life of dental practitioners with a focus on prosthetic dentistry...
May 2019: British Dental Journal
https://read.qxmd.com/read/31114388/influence-of-abutment-material-on-the-shade-of-dental-implant-restorations-in-the-esthetic-zone-a-single-case-report
#16
Osama A Qutub, Ghadeer I Basunbul, Abdulelah M Binmahfooz
High esthetic demand and expectation challenges the rehabilitation of the esthetic zone with dental implants. Most implant system manufacturers offer customized and prefabricated ceramic, specifically zirconia or alumina abutments, as an alternative to titanium or gold alloy abutments, with the aid of computer-aided designing/computer aided manufacturing (CAD/CAM) technology. A 45-year-old male patient was referred to the prosthodontics clinic for the restoration of maxillary central incisors with all ceramic dental implants...
2019: Clinical, Cosmetic and Investigational Dentistry
https://read.qxmd.com/read/31024936/retrospective-study-of-18-titanium-alloy-crowns-produced-by-computer-aided-design-and-manufacturing-in-dogs
#17
Lisa A Mestrinho, Inês Gordo, Jerzy Gawor, Nuno Leal, Maria Niza
Computer-aided design (CAD) and computer-aided manufacturing (CAM) technology is routinely used in various fields of human dentistry, particularly prosthodontics. Reverse engineering and additive manufacturing allow the technician to create an easier, faster and more accurate restoration, with a natural design and adequate strength. Eighteen titanium alloy full crowns were produced for canine teeth of 7 working dogs using CAD/CAM technology (3D BioCare, Nobel Biocare). Reasons for crown therapy included abrasion, enamel infraction, and crown fracture...
2019: Frontiers in Veterinary Science
https://read.qxmd.com/read/31011601/data-on-changes-in-flexural-strength-and-elastic-modulus-of-dental-cad-cam-composites-after-deterioration-tests
#18
Hiroshi Ikeda, Yuki Nagamatsu, Hiroshi Shimizu
Mechanical properties of dental restorative materials are important for clinical success in prosthodontic care. However, open data on the mechanical properties of these materials are limited. This article provides data on the flexural strength and elastic modulus of dental composites in practical use for design/computer-aided manufacturing (CAD/CAM) systems. Eight brands of composites were subjected to deterioration tests: immersing in water at 37 °C for one day or seven days, or thermocycling (TC) in water at temperatures between 5 °C and 55 °C for 5000 or 10,000 cycles...
June 2019: Data in Brief
https://read.qxmd.com/read/30887663/digital-workflow-of-auricular-rehabilitation-a-technical-report-using-an-intraoral-scanner
#19
Ahmed M Ballo, Caroline T Nguyen, Vincent S K Lee
Prosthodontic rehabilitation of a congenital or acquired defect of the ear is considered a challenging and skill-dependent procedure. This technical report describes a novel approach for direct digital scanning of the unaffected contralateral ear using an intraoral scanner and external markers. The obtained digital data of the ear was exported, digitally mirrored, and successfully positioned to a virtual model of a human head with a missing ear. This technique demonstrates the potential application of CAD/CAM in the design and fabrication of an auricular prosthesis for patients with a unilateral ear defect...
March 18, 2019: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://read.qxmd.com/read/30825994/digital-workflows-in-the-management-of-the-esthetically-discriminating-patient
#20
REVIEW
David L Guichet
Traditional methods of designing and creating restorations are being increasingly replaced by digital processes. Software and hardware platforms for esthetic restoration design allow for local computer-aided design/computer-aided manufacturing (CAD/CAM) production. These systems are becoming ubiquitous and their strengths can be applied to the management of the esthetically discerning patient. This article takes a critical look at the effectiveness of digital workflows, including digital treatment planning using multiple datasets, linked digital workflows, digital restorative design, milled prototypes, and minimally veneered zirconia restorations...
April 2019: Dental Clinics of North America
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