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https://www.readbyqxmd.com/read/28091858/will-wearing-dentures-affect-edentulous-patients-breathing-during-sleep
#1
Qiuwen Chen, Dong Zou, Hailan Feng, Shaoxia Pan
PURPOSES: The purpose of this study is to investigate the effect of wearing dentures on obstructive sleep apnea and hypopnea among completely edentulous patients. METHODS AND MATERIALS: A self-controlled study was conducted among 30 edentulous patients. Polysomnograms were recorded in the sleep laboratory on two consecutive nights. Participants slept with their dentures in one night and without dentures in the other. The apnea and hypopnea index (AHI), lowest oxygen saturation (L-SpO2), and morning blood pressure (MBP) were collected for statistical analysis...
January 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28091850/repeated-applications-of-photodynamic-therapy-on-candida-glabrata-biofilms-formed-in-acrylic-resin-polymerized
#2
Lírian Silva de Figueiredo Freitas, Rodnei Dennis Rossoni, Antonio Olavo Cardoso Jorge, Juliana Campos Junqueira
Previous studies have been suggested that photodynamic therapy (PDT) can be used as an adjuvant treatment for denture stomatitis. In this study, we evaluated the effects of multiple sessions of PDT on Candida glabrata biofilms in specimens of polymerized acrylic resin formed after 5 days. Subsequently, four applications of PDT were performed on biofilms in 24-h intervals (days 6-9). Also, we evaluated two types of PDT, including application of laser and methylene blue or light-emitting diode (LED) and erythrosine...
January 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28091447/prosthetic-rehabilitation-of-a-patient-with-a-resected-right-temporomandibular-joint
#3
M Dincel, H Kocaağaoğlu, H Ö Gümüş, H Albayrak
This case report presents the prosthodontic rehabilitation of a patient with a resected right mandible, caused by an accident. Right condyle, ramus, and the posterior part of ramus were affected by the accident. These structures were resected, and the mandible was positioned toward the surgical area and a facial asymmetry was occurred. The patient was treated with a bar-retained maxillar denture with a guide ramp and an implant-supported fixed mandibular prosthesis.
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28090030/effect-of-polymerization-cycles-on-flexural-strengths-and-microhardness-of-different-denture-base-materials
#4
Hasan Gungor, Mustafa Gundogdu, Murat Alkurt, Zeynep Yesil Duymus
The purpose of this study was to evaluate the effect of different polymerization cycles on the flexural strengths and microhardness of two denture base materials (Meliodent and Paladent). Heat-polymerized acrylic resin specimens (65.0 mm long×10.0 mm wide×2.5 mm in height) were prepared using different short and long polymerization cycles. After the specimens had been polymerized, they were stored in distilled water at 37±1°C for 24 h. Flexural strength test was performed at a cross-head speed of 5 mm/min and Vickers microhardness was measured...
January 13, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28089334/masticatory-function-and-oral-health-related-quality-of-life-in%C3%A2-patients-after-partial-maxillectomies-with-closed-or%C3%A2-open%C3%A2-defects
#5
Mohamed M Said, Takafumi Otomaru, Yesiboli Yeerken, Hisashi Taniguchi
STATEMENT OF PROBLEM: The healing pattern after surgical resection of tumors of the oral cavity involving the maxilla may vary from one patient to another. The result may be open communication between the oral and nasal cavities (open defect) or complete oronasal separation after healing of the defect area (closed defect). PURPOSE: The purpose of this clinical study was to compare masticatory function and oral health-related quality of life (OHRQoL) between patients with closed and open defects who had undergone a partial maxillectomy and were wearing dentomaxillary prostheses...
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28089330/finite-element-analysis-of-implant-assisted-removable-partial-dentures-framework-design-considerations
#6
Reza Shahmiri, Raj Das
STATEMENT OF PROBLEM: Connecting an acrylic resin base to both a metal framework and a rigidly fixed implant may affect the rotational displacement of the prosthesis during loading. PURPOSE: The purpose of this finite element analysis study was to analyze the effect of connecting a denture base metal framework to an implant with the aim of decreasing the rotational movement of an implant-assisted removable partial denture. MATERIAL AND METHODS: A mesial occlusal rest direct retainer and a distal occlusal rest direct retainer were modeled and adapted to incorporate a modified denture base metal framework in the connection area for each model...
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28088307/in-office-fabrication-of-a-definitive-cast-and-duplication-of-an-interim-implant-supported-fixed-acrylic-resin-complete-denture
#7
Lambert J Stumpel
The information contained in an interim implant-supported fixed acrylic resin complete denture is a starting point for fabricating the definitive restoration. Duplicating this information in an expedient, precise, and sanitary fashion is desirable so that the interim restoration can be returned to the waiting patient. A technique is described to fabricate an accurate definitive polyvinyl siloxane cast with laboratory analogs bonded to a prepolymerized, dimensionally stable, composite resin baseplate. A screw-retained polyvinyl siloxane duplication of the interim denture is related to this cast...
January 11, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28076464/silver-nanoparticle-incorporation-effect-on-mechanical-and-thermal-properties-of-denture-base-acrylic-resins
#8
Ayşegül Köroğlu, Onur Şahin, Işın Kürkçüoğlu, Doğu Ömür Dede, Tonguç Özdemir, Baki Hazer
Objective: The aim of the present study was to evaluate the mechanical and thermal characteristics of two denture base acrylic resins containing silver nanoparticles (AgNPs). Material and Methods: Two different acrylic denture base resins (heat-polymerized and microwave polymerized) containing 0.3, 0.8 and 1.6 wt% AgNPs were evaluated for flexural strength, elastic modulus and impact strength. The glass transition temperature (Tg) and relative heat capacity (Cp) of the samples were determined from the Differential Scanning Calorimetry (DSC) results...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28072686/design-and-fabrication-of-complete-dentures-using-cad-cam-technology
#9
Weili Han, Yanfeng Li, Yue Zhang, Yuan Lv, Ying Zhang, Ping Hu, Huanyue Liu, Zheng Ma, Yi Shen
The aim of the study was to test the feasibility of using commercially available computer-aided design and computer-aided manufacturing (CAD/CAM) technology including 3Shape Dental System 2013 trial version, WIELAND V2.0.049 and WIELAND ZENOTEC T1 milling machine to design and fabricate complete dentures.The modeling process of full denture available in the trial version of 3Shape Dental System 2013 was used to design virtual complete dentures on the basis of 3-dimensional (3D) digital edentulous models generated from the physical models...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28068265/treatment-of-refractory-complete-edentulism-a-case-report
#10
Lajja Patel, Elizabeth A Clemente, James F Skiba
With the advent of osseointegrated dental implant therapy in the last few decades, complete edentulism of the mandible can be treated and restored predictably and successfully. However, due to medical and financial considerations, many patients cannot avail themselves of this therapy. This article presents a case report of such a patient treated with advanced yet traditional denture construction protocols. These conventional protocols should still be considered for addressing the needs of a patient with medical or financial restrictions...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28068264/locator-retention-does-variation-in-number-and-configuration-matter
#11
Monica J Cayouette, Logan Barnes, Karen McPherson, Gregory J Wright
This pilot study was designed to collect initial data on overdenture attachment retention in varying configurations of attachment location in an implant-retained mandibular overdenture. A clear acrylic model of a mandible with 6 numbered implants and Locator resilient abutments was used to simulate implant placement in a patient. A clear acrylic denture was fabricated with 6 Locator housings to match the implants in the model. Attachments were tested in 4 different configurations: 2 implants, 2 and 5 (T25); 4 implants, 2-5 (T2345); 4 implants, 1, 3, 4, and 6 (T1346); and 6 implants, 1-6 (T1-6)...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28066920/an-oral-health-and-function-screening-tool-for-nursing-personnel-of-long-term-care-facilities-to-identify-the-need-for%C3%A2-dentist-referral-without-preliminary-training
#12
Shigemi Tsukada, Kayoko Ito, Roxana Stegaroiu, Satoko Shibata, Akitsugu Ohuchi
OBJECTIVE: To develop and evaluate, with a dentist as gold standard, an oral health screening tool, the Oral Health Screening Tool for Nursing Personnel (OHSTNP), that assists long-term care facility nursing staff without preliminary training in identifying resident need for dentist referral. METHODS: Using an OHSTNP adapted from previous screening tools (Chalmers, J Gerontol Nurs, 2004, 30, 5; Tsukada, J Jpn Soc Dent Hyg, 2012, 7, 43), one of four nurses, one of eight caregivers and a dentist with 15 years' experience screened the oral health/function of 57 long-term care facility residents...
January 8, 2017: Gerodontology
https://www.readbyqxmd.com/read/28066812/the-denture-associated-oral-microbiome-in-health-and-stomatitis
#13
Baochen Shi, Tingxi Wu, Jeffrey McLean, Anna Edlund, Youngik Young, Xuesong He, Hongyang Lv, Xuedong Zhou, Wenyuan Shi, Huiying Li, Renate Lux
While investigation of the microbiome on natural oral surfaces has generated a wealth of information, few studies have examined the microbial communities colonizing dentures and their relationship to oral health. To address this knowledge gap, we characterized the bacterial community associated with dentures and remaining teeth in healthy individuals and patients with denture stomatitis. The microbiome compositions of matched denture and tooth plaque samples of 10 healthy individuals and 9 stomatitis patients were determined by 16S rRNA gene pyrosequencing...
November 2016: MSphere
https://www.readbyqxmd.com/read/28063305/inhibitory-effects-of-lactobacillus-rhamnosus-and-lactobacillus-casei-on-candida-biofilm-of-denture-surface
#14
Young-Gyun Song, Sung-Hoon Lee
OBJECTIVE: Candida albicans biofilm is associated with denture-related stomatitis and oral candidiasis of elderly. Probiotics are beneficial bacteria and have antibacterial activity against pathogenic bacteria. The purpose of this study was to investigate the antifungal activity of various probiotics against C. albicans and the inhibitory effects of probiotics on Candida biofilm on the denture surface. DESIGN: The spent culture media of various probiotics were investigated the antifungal efficacy against C...
December 31, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/28060350/2-methacryloyloxyethyl-phosphorylcholine-polymer-treatment-of-complete-dentures-to-inhibit-denture-plaque-deposition
#15
Kenji Ikeya, Miya Fukunishi, Fuminori Iwasa, Yuuki Inoue, Kazuhiko Ishihara, Kazuyoshi Baba
Removable dentures made of poly (methyl methacrylate) (PMMA) are prone to bacterial adherence and dental plaque formation, which is called denture plaque. Denture plaque-associated infection is a source of serious dental and medical complications in the elderly. 2-Methacryloyloxyethyl phosphorylcholine (MPC) is a well-known biomedical material that exhibits marked antithrombogenicity and tissue compatibility because of its high resistance to protein adsorption and cell adhesion. Therefore, MPC polymer coatings are suggested to have the potential to inhibit plaque deposition on the surface of PMMA dentures...
December 26, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060024/stress-distribution-in-an-implant-supported-mandibular-complete-denture-using-different-cantilever-lengths-and-occlusal-coating-materials
#16
Rodrigo Antonio de Medeiros, Marcelo Coelho Goiato, Aldiéris Alves Pesqueira, Aljomar José Vechiato Filho, Liliane da Rocha Bonatto, Daniela Micheline Dos Santos
PURPOSE: The aim of this study was to assess stress distribution in the bone-implant interface of a mandibular implant-supported prosthesis with different cantilever lengths, aesthetic coating materials, and implant abutments. MATERIALS AND METHODS: A photoelastic model of an edentulous mandible, containing 5 external hexagon implants, was constructed. Experimental models were divided into 6 groups: group 1-UCLA component and metal bar; group 2-UCLA component and acrylic resin coating; group 3-UCLA component and porcelain coating; group 4-abutment and metal bar; group 5-abutment and acrylic resin coating; and group 6-abutment and porcelain coating...
January 4, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28050985/patients-awareness-toward-implant-supported-prosthesis-an-observational-study
#17
C Mahendra Raju, Sumanth Gunupati, Madisetty Mahesh Babu, C Sameer Kumar Reddy, Sukrutha Biradavolu, M Saravanan
INTRODUCTION: Implant-supported prosthesis has high predictability and success and improves quality of life. This study aims at assessing awareness among the patients regarding implant-supported prosthesis. MATERIALS AND METHODS: A cross-sectional study was conducted among 391 study participants. A structured questionnaire was distributed to assess implant-related awareness among the study participants. The questionnaires were analyzed for the responses. RESULTS: Among the 391 respondents, 37...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050504/a-comparative-evaluation-of-the-linear-dimensional-changes-of-two-different-commercially-available-heat-cure-acrylic-resins-during-three-different-cooling-regimens
#18
Abhishek Savirmath, Vandita Mishra
INTRODUCTION: Close mucosal adaptation of denture base to the underlying mucosa is of prime importance for denture stability. This however can be affected by various temperature changes which the denture base undergoes during processing and also to its material properties. AIM: The aim of the present study was to compare linear dimensional change of heat cure acrylic resin with three different cooling regimens on two different commercially available acrylic denture base resins...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050494/prosthetic-status-needs-and-oral-health-related-quality-of-life-ohrqol-in-the-elderly-population-of-aluva-india
#19
Albin Geo Joseph, Chandrashekar Janakiram, Anil Mathew
INTRODUCTION: Oral Health Related Quality of Life (OHRQOL), being a patient-centred outcome has profound association with the existing prosthetic status and needs. AIM: To assess the association between the prosthetic status and needs with OHRQOL in the elderly population of Aluva, Kochi, Kerala, India. MATERIALS AND METHODS: A cross-sectional study was conducted among the elderly residing in the municipal wards of Aluva municipality, Kochi, Kerala, India...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043400/dental-issues-in-lacrimo-auriculo-dento-digital-syndrome-an-autosomal-dominant-condition-with-clinical-and-genetic-variability
#20
M J Hajianpour, Hannah Bombei, Scott M Lieberman, Rachael Revell, Rachana Krishna, Robert Gregorsok, Simon Kao, Jeff M Milunsky
BACKGROUND AND OVERVIEW: Lacrimo-auriculo-dento-digital (LADD) syndrome is an autosomal dominant disorder with variable lacrimal and salivary gland hypoplasia and aplasia, auricular anomalies and hearing loss, dental defects and caries, and digital anomalies. CASE DESCRIPTION: The authors present the cases of 2 unrelated children with enamel defects and history of dry mouth leading to recurrent dental caries. The referring diagnoses were Sjögren disease and hypohidrotic ectodermal dysplasia, respectively...
December 30, 2016: Journal of the American Dental Association
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