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https://www.readbyqxmd.com/read/28409856/pleural-malignant-mesothelioma-in-dental-laboratory-technicians-a-case-series
#1
Carolina Mensi, Francesco Ciullo, Gino Pietro Barbieri, Luciano Riboldi, Anna Somigliana, Giulio Rasperini, Angela Cecilia Pesatori, Dario Consonni
Asbestos was used in dentistry as a binder in periodontal dressings and as lining material for casting rings and crucible. However, until now, only one case of malignant mesothelioma with occupational exposure to asbestos in dental practice has been reported. We present 4 pleural mesotheliomas out of 5344 cases identified in Lombardy, Italy, in 2000-2014. Three men had been working as dental laboratory technicians, with asbestos exposure for 10, 34, and 4 years, and one woman had been helping her husband for 30 years in manufacturing dental prostheses...
May 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28409763/work-related-musculoskeletal-disorders-among-jordanian-dental-technicians-prevalence-and-associated-factors
#2
Zeid Al-Hourani, Mohammad Nazzal, Yousef Khader, Khader Al Mhdawi, Abdel Rahim Bibars
BACKGROUND: Dental technology is a profession that requires precise manual skills and dexterous handling of small tools. There is an abundance research on work-related musculoskeletal disorders (WMSDs) affecting dentists, dental hygienists and dental assistants, yet very few articles investigated WMSDs among dental technicians. OBJECTIVES: This study aimed to determine the prevalence of WMSDs among Jordanian dental technicians and their associated factors. METHODS: A cross-sectional design was conducted...
April 12, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28394546/occupational-contact-dermatitis-amongst-dentists-and-dental-technicians
#3
Liborija Lugović-Mihić, Iva Ferček, Tomislav Duvančić, Vedrana Bulat, Josip Ježovita, Gaby Novak-Bilić, Mirna Šitum
Since the working medical personnel including dentists and dental technicians mainly use their hands, it is understandable that the most common occupational disease amongst medical personnel is contact dermatitis (CD) (80%-90% of cases). Development of occupational CD is caused by contact of the skin with various substances in occupational environment. Occupational etiologic factors for dental personnel are foremost reactions to gloves containing latex, followed by various dental materials (e.g., metals, acrylates), detergents, lubricants, solvents, chemicals, etc...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28393716/pneumoconiosis-in-different-sectors-and-their-differences-in-turkey
#4
Nur Şafak Alıcı, Arif Çımrın, Ayşe Coşkun Beyan
Introduction: Pneumoconiosis which is one of the ancient diseases, still affects many workers throughout the world despite "existing" control programs. We add data from a single center reviewing risk factors for pneumoconiosis; evaluate functional and radiological findings in different sectors. Materials and Methods: We reviewed medical records of patients diagnosed with pneumoconiosis who were admitted to our center between the years 2013 and 2015. Several personal and occupational features, together with functional and radiologic data, were collected...
December 2016: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/28387655/musculoskeletal-symptoms-of-the-neck-and-shoulder-among-dental-practitioners
#5
Božana Radanović, Predrag Vučinić, Tanja Janković, Elvis Mahmutović, Davor Penjašković
OBJECTIVES: Musculoskeletal symptoms of the neck and shoulder represent a condition whose basic characteristic is pain. These conditions are very often present in dental health professionals. The aim of the paper was to determine presence of discomforts in areas of head, neck, shoulders, upper back and upper limbs at health professionals in area of dentistry, as well as discomfort localisation and methods of treatment. METHODS: The research included 45 health professionals (dentists, dental assistants and dental technicians) employed at Dental Clinic of Vojvodina...
March 24, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28366140/-pneumoconiosis-in-different-sectors-and-their-differences-in-turkey
#6
Nur Şafak Alıcı, Arif Çımrın, Ayşe Coşkun Beyan
Introduction: Pneumoconiosis which is one of the ancient diseases, still affects many workers throughout the world despite "existing" control programs. We add data from a single center reviewing risk factors for pneumoconiosis; evaluate functional and radiological findings in different sectors. Materials and Methods: We reviewed medical records of patients diagnosed with pneumoconiosis who were admitted to our center between the years 2013 and 2015. Several personal and occupational features, together with functional and radiologic data, were collected...
December 2016: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/28362689/collaboration-patterns-and-processes-between-dentists-and-dental-laboratories-when-planning-and-fabricating-implant-supported-restorations
#7
Noga Harel, Avi Meirowitz, Jonathan Block, Ady Palti, Shlomo Matalon, Zeev Ormianer
INTRODUCTION: The success of implant-supported restorations is dependent on proper treatment planning, effective communication within the clinical team, and the use of appropriate methods and materials in the dental laboratory. The objective of this study was to determine collaboration trends between dentists and laboratories and to assess the common methods and materials involved in fabricating implant-supported restorations. METHODS: Questionnaires were distributed to dental laboratories and technicians...
March 29, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28315858/how-does-culture-affect-experiential-training-feedback-in-exported-canadian-health-professional-curricula
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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