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https://www.readbyqxmd.com/read/28315858/how-does-culture-affect-experiential-training-feedback-in-exported-canadian-health-professional-curricula
#1
Kerry Wilbur, Rasha Mousa Bacha, Somaia Abdelaziz
Objectives: To explore feedback processes of Western-based health professional student training curricula conducted in an Arab clinical teaching setting. Methods: This qualitative study employed document analysis of in-training evaluation reports (ITERs) used by Canadian nursing, pharmacy, respiratory therapy, paramedic, dental hygiene, and pharmacy technician programs established in Qatar. Six experiential training program coordinators were interviewed between February and May 2016 to explore how national cultural differences are perceived to affect feedback processes between students and clinical supervisors...
March 17, 2017: International Journal of Medical Education
https://www.readbyqxmd.com/read/28267827/efficacy-of-a-checklist-for-office-laboratory-communication-a-clinical-study-on-quality-outcomes-for-single-crowns
#2
Mario E Bresciano, Andrea De Maria, Marco Morello, Enrico Poglio, Guido Audenino
PURPOSE: The aim of this study was to evaluate the efficacy of a structured communication protocol between dentists and dental laboratory technicians. MATERIALS AND METHODS: A total of 112 single metal-ceramic crowns, fabricated by four different dentist-dental technician pairs, were evaluated at the clinical try-in appointment. Subsequently, each professional pair produced another 112 crowns using a checklist. RESULTS: The scores showed a statistically significant improvement in clinical outcomes with the use of a checklist by reducing adjustment times for contact area, fit, and occlusion and number of appointments...
March 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28265772/in-vivo-study-for-tooth-colour-determination-visual-versus-digital
#3
Jan Brandt, Shirley Nelson, Hans-Christoph Lauer, Ulrike von Hehn, Silvia Brandt
OBJECTIVES: Tooth colour determination is an essential component in the preservative and prosthetic workflow during production of tooth-coloured restorations. The aim of the study was to compare the clinical suitability of conventional, visual tooth colour determination and digital methods. MATERIALS AND METHODS: Tooth colour of vital, natural central incisors among a total of 107 subjects was determined visually by a dentist (VD) and dental technician (VDT) using VITA Toothguide 3D-MASTER®, digitally by the spectrophotometer VITA Easyshade Advance 4...
March 6, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28203007/-diagnossis-and-treatment-of-complicated-anterior-teeth-esthetic-defects-by-combination-of-whole-process-digital-esthetic-rehabilitation-with-periodontic-surgery
#4
Z Li, Y S Liu, H Q Ye, Y S Liu, W J Hu, Y S Zhou
OBJECTIVE: To explore a new method of whole-process digital esthetic prosthodontic rehabilitation combined with periodontic surgery for complicated anterior teeth esthetic defects accompanied by soft tissue morphology, to provide an alternative choice for solving this problem under the guidance of three-dimensional (3D) printing digital dental model and surgical guide, thus completing periodontic surgery and digital esthetic rehabilitation of anterior teeth. METHODS: In this study, 12 patients with complicated esthetic problems accompanied by soft tissue morphology in their anterior teeth were included...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28117859/lip-lifting-unveiling-dental-beauty
#5
Kyle Stanley, Matthew Caligiuri, Luís Henrique Schlichting, Panaghiotis K Bazos, Michel Magne
The focus for the achievement of complete success in the esthetic zone has traditionally been on addressing deficiencies of intraoral hard and soft tissue. Often, these deficiencies are accompanied by esthetic concerns regarding the lips that are routinely neglected by the dental team. A predictable plastic surgery technique - the lip lift - has been used for decades to enhance lip esthetics by shortening the senile upper lip to achieve a more youthful appearance. Over the years, this technique has been refined and used in many different ways, allowing its routine incorporation into full facial esthetic planning...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28102922/effect-of-the-unfilled-space-size-of-the-abutment-screw-access-hole-on-the-extruded-excess-cement-and-retention-of-single-implant-zirconia-crowns
#6
Sulieman S Al-Johany, Mohammad D Al Amri, Ahmed S Al-Bakri, Mohammed N Al-Qarni
PURPOSE: To evaluate in vitro the effect of the size of the unfilled space of the abutment screw access hole on the amount of extruded excess cement and the retention of zirconia copings. MATERIALS AND METHODS: Twelve dental implant replicas were attached to the corresponding abutments and embedded in acrylic resin blocks. A total of 36 CAD/CAM zirconia copings were fabricated by one technician using the standard technique. Abutments were divided into group I: the entire screw access channel was completely filled (nonspaced); group II: 1-mm-spaced; and group III: 2-mm-spaced...
January 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28100024/evaluation-of-cast-re-orientation-on-a-dental-surveyor-using-three-tripod-techniques-a-survey-and-in-vitro-study
#7
Mohammed E Sayed, Idris A Busaily, Rana J Nahari, Ruaa O Hakami, Sami M Maashi, Naveen R Ramireddy
PURPOSE: To survey different educational levels (i.e., students, interns, technicians, and prosthodontic faculty) with regard to their opinions, attitudes, and adoption of three selected tripod techniques. The study will also investigate the accuracy of these techniques to reposition casts on the dental surveyor in anterio-posterior (AP) and lateral directions at both technique and educational levels. MATERIALS AND METHODS: Tripod points, scored lines, and cemented post tripod techniques were used in this study...
January 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28076661/impression-techniques-used-for-single-unit-crowns-findings-from-the-national-dental-practice-based-research-network
#8
Michael S McCracken, David R Louis, Mark S Litaker, Helena M Minyé, Thomas Oates, Valeria V Gordan, Don G Marshall, Cyril Meyerowitz, Gregg H Gilbert
PURPOSE: To: (1) determine which impression and gingival displacement techniques practitioners use for single-unit crowns on natural teeth; and (2) test whether certain dentist and practice characteristics are significantly associated with the use of these techniques. MATERIALS AND METHODS: Dentists participating in the National Dental Practice-Based Research Network were eligible for this survey study. The study used a questionnaire developed by clinicians, statisticians, laboratory technicians, and survey experts...
January 11, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28024819/randomized-controlled-within-subject-evaluation-of-digital-and-conventional-workflows-for-the-fabrication-of-lithium-disilicate-single-crowns-part-ii-cad-cam-versus-conventional-laboratory%C3%A2-procedures
#9
Irena Sailer, Goran I Benic, Vincent Fehmer, Christoph H F Hämmerle, Sven Mühlemann
STATEMENT OF PROBLEM: Clinical studies are needed to evaluate the entire digital and conventional workflows in prosthetic dentistry. PURPOSE: The purpose of the second part of this clinical study was to compare the laboratory production time for tooth-supported single crowns made with 4 different digital workflows and 1 conventional workflow and to compare these crowns clinically. MATERIAL AND METHODS: For each of 10 participants, a monolithic crown was fabricated in lithium disilicate-reinforced glass ceramic (IPS e...
December 23, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28000274/digital-technology-in-fixed-implant-prosthodontics
#10
REVIEW
Tim Joda, Marco Ferrari, German O Gallucci, Julia-Gabriela Wittneben, Urs Brägger
Digital protocols are increasingly influencing prosthodontic treatment concepts. Implant-supported single-unit and short-span reconstructions will benefit mostly from the present digital trends. In these protocols, monolithic implant crowns connected to prefabricated titanium abutments, which are created based on data obtained from an intraoral scan followed by virtual design and production, without the need of a physical master cast, have to be considered in lieu of conventional manufacturing techniques for posterior implant restorations...
February 2017: Periodontology 2000
https://www.readbyqxmd.com/read/27922642/threshold-values-for-the-perception-of-color-changes-in-human-teeth
#11
Daniel S Thoma, Alexis Ioannidis, Vincent Fehmer, Gioia Michelotti, Ronald E Jung, Irena Sailer
The aim of the present study was to assess the threshold values for color changes on the level of the tooth separately for laypeople, dentists, and dental technicians. Standardized presentations were made of five cases (maxilla, left to right lateral incisors) with the gingiva and teeth separated. The color parameters L (lightness), a, and b (chroma) (CIE L*a*b* parameters) of the tooth layers were adjusted to induce darker and lighter colors. In the presentations, the left part of the pictures (maxillary right central and lateral incisors) was unchanged, whereas the right part was modified...
November 2016: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27881314/orientation-of-handle-for-successful-prosthetic-treatment-in-patients-with-an-anatomic-compromise-after-a-maxillectomy
#12
Yuka I Sumita, Mariko Hattori, Mahmoud E Elbashti, Hisashi Taniguchi
This clinical technique provides a key procedure for successful prosthetic treatment in patients with an anatomical compromise after a maxillectomy. When making a preliminary impression, the clinician must keep the handle of the stock tray parallel to the patient's interpupillary line extraorally to maintain the correct position of the tray and to make a record of the inclination of the occlusal plane. This simple consideration during this first step of making a preliminary impression can be an important guide for both dentists and dental technicians...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27870167/design-of-complete-dentures-by-adopting-cad-developed-for-fixed-prostheses
#13
Yanfeng Li, Weili Han, Jing Cao, Yuan Iv, Yue Zhang, Yishi Han, Yi Shen, Zheng Ma, Huanyue Liu
The demand for complete dentures is expected to increase worldwide, but complete dentures are mainly designed and fabricated manually involving a broad series of clinical and laboratory procedures. Therefore, the quality of complete dentures largely depends on the skills of the dentist and technician, leading to difficulty in quality control. Computer-aided design and manufacturing (CAD/CAM) has been used to design and fabricate various dental restorations including dental inlays, veneers, crowns, partial crowns, and fixed partial dentures (FPDs)...
November 21, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27811863/histo-anatomic-3d-printing-of-dental-structures
#14
J Schweiger, F Beuer, M Stimmelmayr, D Edelhoff, P Magne, J F Güth
The creation of dental restorations with natural appearance and biomechanics represents a major challenge for the restorative team. The manufacturing-process of high-aesthetic restorations from tooth-coloured restorative materials is currently dominated by manual manufacturing procedures and the outcome is highly dependent on the knowledge and skills of the performing dental technician. On the other hand, due to the simplicity of the manufacturing process, CAD/CAM restorations from different material classes gain more and more acceptance in the daily routine...
November 4, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27808351/die-cad-cam-gefertigte-totalprothese-mit-dem-%C3%A2-digital-denture-professional-system%C3%A2
#15
Tim Joda, Philipp Müller, Frank Zimmerling, Martin Schimmel
The article describes the medical and dental procedures for four treatment sessions with the Digital Denture Professional (DDP) system. First, conventional preliminary dental impressions of the full arch are taken to achieve accurate jaw positioning records. The study models and patient data are digitalised using a laboratory scanner. The dental lab technician then constructs and mills custom impression trays and a mount as an intraoral instrument. A closed-mouth impression is then taken to record vertical dimensions and central relation position...
2016: Swiss Dental Journal
https://www.readbyqxmd.com/read/27770938/biological-and-mechanical-characterization-of-carbon-fiber-frameworks-for-dental-implant-applications
#16
Maria Menini, Paolo Pesce, Francesco Pera, Fabrizio Barberis, Alberto Lagazzo, Ludovica Bertola, Paolo Pera
OBJECTIVES: The aim of the present study was to investigate the biocompatibility and mechanical characteristics of dental implant frameworks made of carbon fiber composite. METHODS: The biocompatibility of intact samples and fragments was evaluated by cell count and MTT test according to EN-ISO 10993-5:2009 directions. Destructive and non-destructive mechanical tests were performed in order to evaluate: porosity, static and dynamic elastic modulus of carbon fiber samples...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27755862/socio-demographic-and-clinical-characteristics-of-turkish-workers-with-pneumoconiosis
#17
Hilal Altınöz, Cengiz Çelikkalkan, Gönül Dinç Horasan, Fatih Hamşioğlu, Nalan Cengiz, Hikmet Orbay
AIM: Pneumoconiosis is caused by inhaling dust. The aim of the study was to analyze 208 cases of workers' pneumoconiosis. METHOD: Patients' files were used for the descriptive study. RESULTS: All patients were male aged 38.82±13 years. The most important symptom was breathlessness. Patients were denim sandblasters (50.5%), dental technicians (12%), coal miners (6.7%), and others. The mean exposure time before pneumoconiosis occurred was shorter in denim sandblasters and teflon kitchenware producers compared to other occupations (5...
September 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/27747638/occlusal-status-of-implant-superstructures-at-mandibular-first-molar-immediately-after-setting
#18
Yukihiko Okada, Yuji Sato, Noboru Kitagawa, Keiichiro Uchida, Tokiko Osawa, Yoshiki Imamura, Mayumi Terazawa
BACKGROUND: Occlusal contact on the implant superstructures is important for successful treatment. The purpose of this study was to investigate the occlusal contact of single implant superstructures at the mandibular first molar immediately after seating from weak to strong clenching. METHODS: Subjects were nine patients who had just been fitted with an implant prosthesis in the mandibular first molar region, with no missing teeth other than in the implant region...
December 2015: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27747626/current-status-of-implant-prosthetics-in-japan-a-survey-among-certified-dental-lab-technicians
#19
Yoshiyuki Hagiwara, Tatsuya Narita, Yohei Shioda, Keisuke Iwasaki, Takayuki Ikeda, Shunsuke Namaki, Thomas J Salinas
BACKGROUND: There are many implant cases in which dental technicians take initiative with regard to the design of implant prostheses, and to a certain extent, this area of care is one in which dentists do not necessarily play the leading role. Moreover, inadequate communication between dental technicians and dentists and insufficient instructions for technicians has been highlighted as issues in the past. The purpose of this questionnaire is to improve the quality of implant prostheses and thereby contribute to patient service by clarifying, among other aspects of treatment, problem areas and considerations in the fabrication of implant prostheses, conceptual-level knowledge, and awareness of prosthodontics on the part of the dentists in charge of treatment and methods for preventing prosthetic complications...
December 2015: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/27746602/knowledge-attitude-and-practice-of-dental-professionals-regarding-the-effect-and-management-of-food-impaction-associated-with-fixed-partial-denture-prostheses-a-survey
#20
Aradhana Nagarsekar, Ridhima Gaunkar, Meena Aras
OBJECTIVE: This survey was undertaken to assess dentist's opinion regarding the occurrence and pattern of food impaction in relation to fixed partial denture (FPD) prostheses, its commonly observed consequences, factors contributing to it, and its management. METHODS: A descriptive survey was conducted on a sample size of 150 dental practitioners. The pro forma consisted of informed consent, demographic information, and questionnaire. The results were tallied and quantitative analysis was performed to obtain the descriptive statistics for the data using SPSS version 20...
October 2016: Journal of Indian Prosthodontic Society
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