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https://www.readbyqxmd.com/read/28341253/digital-workflow-for-a-dental-prosthesis-that-considers-lateral-mandibular-relation
#1
Ji-Hyun Park, Jong-Eun Kim, June-Sung Shim
Most digital prosthesis designs consider only the maximal intercuspal position (MIP) and not the lateral movement. During the computer-aided design and computer-aided manufacture (CAD-CAM) prosthesis delivery process, the clinician has to adjust the prosthesis to avoid occlusal interference during lateral excursion. The novel digital workflow described in this report can be divided into 2 steps. After obtaining interocclusal records for the MIP and the lateral excursion position, the crown CAD data were designed using a general digital workflow considering only the MIP...
March 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28327695/do-repeated-changes-of-abutments-have-any-influence-on-the-stability-of-peri-implant-tissues-one-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#2
Marco Esposito, Eriberto Bressan, Maria Gabriella Grusovin, Ferdinando D'Avenia, Konrad Neumann, Luca Sbricoli, Giuseppe Luongo
PURPOSE: To evaluate the influence of at least three abutment changes in conventionally loaded implants against placement of a definitive abutment in immediately non-occlusal loaded implants on hard and soft tissue changes. MATERIALS AND METHODS: Eighty patients requiring one single crown or one fixed partial prosthesis supported by a maximum of three implants were randomised, after implants were placed with more than 35 Ncm, according to a parallel group design to receive definitive abutments which were loaded immediately (definitive abutment or immediate loading group) or transmucosal abutments...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28326738/-dental-implantation-in-a-patient-with-sj%C3%A3-gren-s-syndrome-a-case-report
#3
Luo Cuifen, Peng Guoguang, Feng Yuanhua, Huang Xingxiang
We reported one case of a patient with Sjögren's syndrome and dental implant. This patient was followed up for more than one year. The patient was diagnosed with Sjögren's syndrome for 5 years and treated with long-term corticosteroid. Four implant-tissue interface hydrophilic implants were placed on 15, 16, 44, and 46 of the mandibular and maxillary areas. After the surgery was completed, the patient was treated with oral antibiotic and "shenggu pills" to prevent infection and glucocorticoid to manage Sjögren's syndrome...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28326723/-current-dental-implant-design-and-its-clinical-importance
#4
Lin Ye
The development of clinical implant dentistry was intensively affected by dental implant design improvement and innovation, which brought about new concept, even milestone-like changes of clinical protocol. The current improvements of dental implant design and their clinical importance could be highlighted as followings: 1) The implant apical design influences the implant preliminary stability in immediate implant. The apical 3-5 mm design of implant makes implant stable in immediate implant, because this part would be screwed into alveolar bone through fresh socket, the other part of implant could not be tightly screwed in the socket because of smaller implant diameter...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28318375/fracture-strength-of-standard-and-small-diameter-prosthetic-abutments-for-full-arch-implant-supported-restorations
#5
Bruno Costa Martins de Sá, Augusto Ricardo Andrighetto, Sérgio Rocha Bernardes, Rodrigo Tiossi
The fracture strength of prosthetic abutments with different sizes and combinations to support a 5 implant milled framework with distal extension was tested. Prosthetic abutments with different dimensions (4.8 mm diameter mini-conical abutment and 3.5 mm diameter micro-conical abutment) were screwed to 5 threaded implants. The following groups were divided (n=3): G1 with 5 mini-conical abutments (standard size), G2 with 5 micro-conical abutments (small sized), G3 with a combination of 3 small sized abutments and 2 standard sized abutments, and G4 with a combination of 2 small sized abutments and 3 standard sized abutments...
March 20, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28300045/-nature-cures-an-alternative-herbal-formulation-as-a-denture-cleanser
#6
R Sushma, Tanuja Tanaji Sathe, Anand Farias, Pronob Kumar Sanyal, Shashi Kiran
BACKGROUND: Candida albicans is one of the microorganisms which harbor the oral cavity, especially in elderly. However, the incidence of existence of this increases in patients using removable dental prosthesis. There is therefore a need to test the anticandidal efficacy of these cost-effective, easily available products to be used as routine denture cleansers. AIM AND OBJECTIVES: (1) To evaluate antifungal properties of triphala churna on the heat cure denture base material...
January 2017: Annals of African Medicine
https://www.readbyqxmd.com/read/28299226/dental-implant-placement-with-simultaneous-anterior-maxillary-reconstruction-with-block-and-particulate-fresh-frozen-allograft-bone-a-case-report-with-24-month-follow-up-data
#7
J S Vieira, E M Brandão-Filho, F R Deliberador, J C Zielak, A F Giovanini, T M Deliberador
Fresh frozen allograft bone is routinely used in orthopedic surgery for the reconstruction of large bone defects, and its use in oral and maxillofacial surgery is increasing. The purpose of this case was to demonstrate the installation of dental implants and the use of fresh frozen bone for reconstruction of anterior maxilla in the same surgery. This case report presents the insertion of dental implants followed immediately by a placement of fresh frozen allograft in block and particle for a reconstruction of atrophic anterior maxillary in the same surgery...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28296982/management-of-extraoral-complications-in-a-patient-treated-with-four-zygomatic-implants
#8
Andrew Dawood, Nicholas Kalavresos
This article details the significant complications associated with treatment of a patient who underwent maxillary reconstruction based entirely on zygomatic implants. The use of zygomatic implants is becoming increasingly widespread, and treatment has been shown to be predictable and generally free of surgical complications. However, extending from the maxillary alveolus, alongside or through the maxillary antrum, toward the zygoma or orbital rim, these long implants have the potential to create a range of complications that may be more serious than those encountered with conventional dental implants...
March 15, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28295335/primary-dental-care-evaluation-in-brazil-an-item-response-theory-approach
#9
Clarice Magalhães Rodrigues Dos Reis, Juliana Vaz de Melo Mambrini, Antônio Thomaz Gonzaga da Matta-Machado, João Henrique Lara do Amaral, Marcos Azeredo Furquim Werneck, Mauro Henrique Nogueira Guimarães de Abreu
OBJECTIVES: Item response theory (IRT) is a method used to design, analyze, and score tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables. The aim of this study was to assess the psychometric properties of dental care questions in the "Programa Nacional de Melhoria do Acesso e Qualidade da Atenção Básica-PMAQ-AB," Brazil, using IRT. METHODS: Dentists in primary health care units in Brazil (n = 12,403) were interviewed face-to-face using a structured questionnaire...
March 14, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28274480/use-of-intraoral-scanning-and-3-dimensional-printing-in-the-fabrication-of-a-removable-partial-denture-for-a-patient-with-limited-mouth-opening
#10
Jiang Wu, Yan Li, Yumei Zhang
BACKGROUND AND OVERVIEW: When treating patients with severely limited mouth openings, it is difficult for the dentist to obtain an impression and fabricate a removable partial denture (RPD) by using traditional methods. Intraoral scanning, computer-aided design, and 3-dimensional (3D) printing have provided alternative methods for fabricating dental prostheses. CASE DESCRIPTION: The authors present a case in which they aimed to improve the efficiency and quality of fabricating an RPD framework by integrating the technologies of intraoral scanning, computer-aided design, and 3D printing...
March 5, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28274193/a-peptide-based-biological-coating-for-enhanced-corrosion-resistance-of-titanium-alloy-biomaterials-in-chloride-containing-fluids
#11
Noah Muruve, Yuanchao Feng, Jaye Platnich, Daniel Hassett, Randall Irvin, Daniel Muruve, Frank Cheng
Titanium alloys are common materials in the manufacturing of dental and orthopedic implants. Although these materials exhibit excellent biocompatibility, corrosion in response to biological fluids can impact prosthesis performance and longevity. In this work, a PEGylated metal binding peptide (D-K122-4-PEG), derived from bacteria Pseudomonas aeruginosa, was applied on a titanium (Ti) alloy, and the corrosion resistance of the coated alloy specimen was investigated in simulated chloride-containing physiological fluids by electrochemical impedance spectroscopy and micro-electrochemical measurements, surface characterization, and biocompatibility testing...
March 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28273739/dual-energy-ct-with-virtual-monochromatic-images-and-metal-artifact-reduction-software-for-reducing-metallic-dental-artifacts
#12
Jihoon Cha, Hyung-Jin Kim, Sung Tae Kim, Yi Kyung Kim, Ha Youn Kim, Gyeong Min Park
Background Metallic dental prostheses may degrade image quality on head and neck computed tomography (CT). However, there is little information available on the use of dual-energy CT (DECT) and metal artifact reduction software (MARS) in the head and neck regions to reduce metallic dental artifacts. Purpose To assess the usefulness of DECT with virtual monochromatic imaging and MARS to reduce metallic dental artifacts. Material and Methods DECT was performed using fast kilovoltage (kV)-switching between 80-kV and 140-kV in 20 patients with metallic dental prostheses...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28267816/the-effect-of-a-cad-cam-guided-template-on-formation-of-the-screw-access-channel-for-fixed-prostheses-supported-by-lingually-placed-implants
#13
Du-Hyeong Lee, Lin-Jie Li, Hang Nga Mai, Kyung-Rok Kim, Keun-Woo Lee
PURPOSE: The aim of this study was to evaluate the effect of a computer-aided design/computer-assisted manufacturing (CAD/CAM) guide on drilling the screw-access channel for lingually placed implants. MATERIALS AND METHODS: Screw-channel drilling guides were fabricated on lingually placed implant models using CAD/CAM technology. The screw channels were prepared with guided or freehand drilling by 20 dental graduates. The accuracy of each screw channel was assessed for drilling entry point, channel volume, and angulation (α = ...
March 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28258795/additively-manufactured-sub-periosteal-jaw-implants
#14
M Y Mommaerts
Severe bone atrophy jeopardizes the success of endosseous implants. This technical note aims to present the innovative concept of additively manufactured sub-periosteal jaw implants (AMSJIs). Digital datasets of the patient's jaws and wax trial in occlusion are used to segment the bone and dental arches, for the design of a sub-periosteal frame and abutments in the optimal location related to the dental arch and for the design of the suprastructure. The implants and suprastructure are three-dimensionally (3D) printed in titanium alloy...
February 28, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28258271/patterns-of-restorative-failure-among-khat-and-shammah-users-in-jazan-city-kingdom-of-saudi-arabia-a-cross-sectional-survey
#15
Mohammed E Sayed, Razan A Bosly, Huda A Hakami, Maryam H Mugri, Shilpa H Bhandi
INTRODUCTION: The effect of Khat and Shammah habits, with the parafunctional jaw activities that accompany them, on the integrity of the natural dentition, dental restorations, and prostheses has not yet been investigated. This study is the first attempt to identify the patterns of restorative failure among Khat chewers and Shammah users in Jazan City, Kingdom of Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was conducted in 294 recruits among dental clinics in Jazan City, Kingdom of Saudi Arabia, from October 1, 2015, to April 30, 2016...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28239830/implant-survival-and-success-rates-in-patients-with-risk-factors-results-from-a-long-term-retrospective-study-with-a-10-to-18-years-follow-up
#16
F De Angelis, P Papi, F Mencio, D Rosella, S Di Carlo, G Pompa
OBJECTIVE: Risk factors for implant therapy are represented by all general and local conditions that through various mechanisms can increase either short-term and long-term failure risk. The aim of this study is to assess the implant survival and implant success rates with single and multiple risk factors. PATIENTS AND METHODS: To address the research purpose, a retrospective cohort study was designed and implemented, including a sample of 225 patients with a total of 871 implants placed...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28231040/evaluation-of-the-alteration-of-occlusal-distribution-in-unilateral-free-end-and-intermediate-missing-cases
#17
Kazuhiro Kon, Makoto Shiota, Aoi Sakuyama, Maho Ozeki, Wataru Kozuma, Sawako Kawakami, Shohei Kasugai
The present study aimed to evaluate the effect of implant prostheses on the occlusal force and area as well as the distribution of occlusal loading in unilateral free-end and intermediate missing cases. Fourteen healthy subjects (7 free-end missing cases in the first and second molars and 7 intermediate missing cases in the first molar region) were included. Six months after the implant prosthesis was placed, an occlusal evaluation was performed with or without the implant superstructure by using Dental Prescale film and an occluder device...
February 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28223199/poly-methyl-methacrylate-with-tio2-nanoparticles-inclusion-for-stereolitographic-complete-denture-manufacturing-the-fututre-in-dental-care-for-elderly-edentulous-patients
#18
Eugenia Eftimie Totu, Aurelia Cristina Nechifor, Gheorghe Nechifor, Hassan Y Aboul-Enein, Corina Marilena Cristache
OBJECTIVES: The aim of this study was to obtain a Poly(methylmethacrylate) (PMMA)-TiO2 nanocomposite material with improved antibacterial characteristics, suitable for manufacturing 3D printed dental prosthesis. METHODS: 0.2, 0.4, 0.6, 1, 2.5 by weight% of TiO2 nanoparticles have been added to the commercially available stereolithographic PMMA material and the obtained nanocomposites have been analyzed using FTIR, SEM and also tested for antimicrobial efficacy against bacterial cultures from Candida species (C...
February 20, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28222883/simplified-digital-workflow-for-dental-implant-restoration-on%C3%A2-a%C3%A2-stock%C3%A2-abutment-using-an-intraoral-scanner-a%C3%A2-dental%C3%A2-technique
#19
Jong-Eun Kim, Ji-Hyun Park, Hong-Seok Moon, June-Sung Shim
A straightforward digital restorative method based on a library of stock abutments is presented. Precisely scanned data of laboratory analog components of the stock abutment were obtained using a tabletop scanner to produce the library. The stock abutment and surrounding teeth, opposing arch, and occlusal information were recorded using an intraoral scanner. After transferring the scanned data to computer-aided design software, an appropriate library file for the abutment connected within the mouth was matched in order to design the prosthesis...
February 17, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28222882/in-office-fabrication-of-dental-implant-surgical-guides-using-desktop-stereolithographic-printing-and-implant-treatment-planning-software-a-clinical-report
#20
Daniel Whitley, R Scott Eidson, Ivan Rudek, Sompop Bencharit
Guided surgery is accepted as the most accurate way to place an implant and predictably relate the implant to its definitive prosthesis, although few clinicians use it. However, recent developments in high-quality desktop 3-dimensional stereolithographic printers have led to the in-office fabrication of stereolithographic surgical guides at reduced cost. This clinical report demonstrates a protocol for using a cost-effective, in-office rapid prototyping technique to fabricate a surgical guide for dental implant placement...
February 17, 2017: Journal of Prosthetic Dentistry
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