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Removable Partial Denture

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https://www.readbyqxmd.com/read/28089330/finite-element-analysis-of-implant-assisted-removable-partial-dentures-framework-design-considerations
#1
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/28042277/distal-extension-mandibular-removable-partial-denture-with-implant-support
#2
Canan Bural, Begum Buzbas, Sebnem Ozatik, Gulsen Bayraktar, Yusuf Emes
This case report describes the fabrication of a distal extension removable partial denture (RPD) of a 65-year-old man with implant support. Loss of fibroelasticity of the peripheral tissues and reduced mandibular vestibular sulcular depth due to a previous surgical resection and radiotherapy at the right side were the main clinical factors that created difficulty for denture retention and stability. The fabrication of a mandibular RPD supported by anterior teeth and two bilaterally placed implants in the molar area to convert from Kennedy Class 1 design to Kennedy Class 3 implant-bounded RPD is reported...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28028833/incidence-and-predictors-of-edentulism-among-south-brazilian-older-adults
#3
Fernanda Pasquetti Marques, Luísa Helena do Nascimento Tôrres, Augusto Bacelo Bidinotto, Juliana Balbinot Hilgert, Fernando Neves Hugo, Renato José De Marchi
OBJECTIVE: To identify socioeconomic, demographic, behavioural and clinical predictors of the 8-year incidence of edentulism in south Brazilian older adults. METHODS: Cohort of a representative sample of older persons in Carlos Barbosa, a south Brazil city. A cohort study was conducted using a simple random sample of 392 older people evaluated in 2004, with follow-ups in 2008 and 2012, when 199 participants were evaluated. Interviews and oral examinations were conducted...
December 28, 2016: Community Dentistry and Oral Epidemiology
https://www.readbyqxmd.com/read/27998007/mandibular-movements-and-bite-force-in-alzheimer-disease-before-and-after-new-denture-insertion
#4
Camila Heitor Campos, Giselle Rodrigues Ribeiro, Florindo Stella, Renata Cunha Matheus Rodrigues Garcia
BACKGROUND: Chewing impairment has been observed in elders with Alzheimer disease (AD), however it is unknown whether oral rehabilitation can improve their masticatory function. OBJECTIVE: This study evaluated the influence of new removable prostheses on chewing function of patients with AD METHODS: Participants using removable dentures were divided into two groups: patients with mild AD (77.2 ± 5.8 years, n=16) and controls (76.0 ± 4.4, n=16). All participants received general dental treatment and new total and/or partial removable prostheses...
December 20, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27917567/effects-of-rinsing-with-arginine-bicarbonate-and-urea-solutions-on-initial-enamel-lesions-in-situ
#5
Yang Yu, Xiaoling Wang, Chunling Ge, Bing Wang, Chuoyue Cheng, Ye-Hua Gan
OBJECTIVE: The aim of this study was to investigate the effects of rinsing with arginine or urea solution on initial enamel lesions in situ. METHODS: Fourteen subjects wore mandibular removable partial dentures embedded with bovine enamel blocks with artificial enamel lesions were included. The experiment included four 4-week rinsing periods with a 10-day washout period between each rinsing period. In each rinsing period, the subjects rinsed after meal or snack using water, or 2% arginine bicarbonate, or 1% urea, or 0...
December 5, 2016: Oral Diseases
https://www.readbyqxmd.com/read/27914668/three-dimensional-finite-element-analysis-of-implant-assisted-removable-partial-dentures
#6
Ju-Won Eom, Young-Jun Lim, Myung-Joo Kim, Ho-Beom Kwon
STATEMENT OF PROBLEM: Whether the implant abutment in implant-assisted removable partial dentures (IARPDs) functions as a natural removable partial denture (RPD) tooth abutment is unknown. PURPOSE: The purpose of this 3-dimensional finite element study was to analyze the biomechanical behavior of implant crown, bone, RPD, and IARPD. MATERIAL AND METHODS: Finite element models of the partial maxilla, teeth, and prostheses were generated on the basis of a patient's computed tomographic data...
November 30, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27881308/technique-for-transferring-the-path-of-insertion-of-a-removable-partial-denture-to-a-cad-cam-generated-implant-surgical-template
#7
Thomas L Kwun, Michael Razzoog
A technique is described that uses a surveyor, gutta percha points, and a computer-aided design and computer-aided manufacturing (CAD-CAM)-guided implant surgery system to predetermine and transfer the ideal angulation of the implant to be placed.
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27861664/comparison-of-treatment-outcomes-in-partially-edentulous-patients-with-implant-supported-fixed-prostheses-and-removable-partial-dentures
#8
Toshifumi Nogawa, Yoshiyuki Takayama, Keita Ishida, Atsuro Yokoyama
PURPOSE: The aim of this study was to compare masticatory performance, occlusal force, and oral health-related quality of life (OHRQoL) in patients with mandibular distal-extension edentulism between those with implant-supported fixed prostheses (ISFPs) and those with removable partial dentures (RPDs), and to evaluate relationships among them. MATERIALS AND METHODS: Subjects were recruited from patients using ISFPs or RPDs for mandibular distal-extension edentulism...
November 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27825678/microbiological-and-clinical-assessment-of-the-abutment-and-non-abutment-teeth-of-partial-removable-denture-wearers
#9
Luciana Costa, Cássio do Nascimento, Valéria Oliveira Pagnano de Souza, Vinícius Pedrazzi
OBJECTIVE: The aim of this study was assessing the changes in both clinical and microbiological parameters of healthy individuals after rehabilitation with removable partial denture (RPD). DESIGN: 11 women received unilateral or bilateral free-end saddle RPD in the mandibular arch. Clinical and microbiological parameters of abutment, non-abutment, and antagonist teeth were assessed at baseline (RPD installation) and after 7, 30, 90, and 180days of function. The Checkerboard DNA-DNA hybridization technique was used to identify and quantify up to 43 different microbial species from subgingival biofilm samples...
November 3, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27814254/implant-assisted-removable-partial-dentures-practical-considerations
#10
Aaron J Omura, Vaibhav Latthe, Mark M Marin, David R Cagna
At the heart of prosthodontic treatment planning must be a sound understanding of the quality and reliability of the prosthodontic foundation. Implant prosthodontics relies almost entirely on the biological and mechanical properties of an osseous foundation. Initiation of therapy in the absence of a healthy and stable prosthodontic foundation risks unintended and suboptimal treatment outcomes. For conventional removable partial denture (RPD) therapy, consideration must be given to interactions between the soft and hard tissues available to support and stabilize planned prostheses...
November 2016: General Dentistry
https://www.readbyqxmd.com/read/27783768/association-between-oral-health-status-and-central-obesity-among-brazilian-independent-living-elderly
#11
Carla Thais Rosada Peruchi, Regina Célia Poli-Frederico, Alexandrina Aparecida Maciel Cardelli, Marina de Lourdes Calvo Fracasso, Carina Gisele Costa Bispo, Rejane Dias Neves-Souza, Jefferson Rosa Cardoso, Sandra Mara Maciel
The aim of this study was to investigate the association between oral health status and central obesity (CO) in Brazilian independent-living elderly. A cross-sectional study was carried out in a sample of 489 elderly, who were participants of the Study on Aging and Longevity, in Londrina, state of Parana. The number of natural teeth and use of prostheses were evaluated according to the World Health Organization criteria. The presence of CO was assessed using measures of waist circumference (WC) and waist-hip ratio (WHR)...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27769657/implant-supported-mandibular-removable-partial-dentures-patient-based-outcome-measures-in-relation-to-implant-position
#12
Charlotte Jensen, Gerry M Raghoebar, Wouter Kerdijk, Henny J A Meijer, Marco S Cune
OBJECTIVES: To assess the benefits of implant support to Removable Partial Dentures (RPD) in patients with a bilateral free-ending situation in the mandible and to determine the most favorable implant position: the premolar (PM) or the molar (M) region. METHODS: Thirty subjects with a bilateral unbounded posterior saddle received 2 PM and 2M implants. A new RPD was placed. Implant support was provided 3 months later. Two PM implants supported the RPD. After 3 months the 2M implants were used or vice versa...
October 18, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27746609/implant-assisted-removable-partial-denture-an-approach-to-switch-kennedy-class-i-to-kennedy-class-iii
#13
Arun Ramchandran, Kaushal Kishor Agrawal, Pooran Chand, Ramashanker, Raghuwar Dayal Singh, Anusar Gupta
The Kennedy Class I and II distal extension situation poses a challenge to the prosthodontist as it inherently possesses a lack of stability, which may be attributed to the difference in compressibility of the mucosa and the periodontal ligament surrounding the distal-most abutment tooth. This results in a rotational tendency of the prosthesis around the line connecting its terminal abutments. Placement of osseointegrated dental implants in the posterior edentulous regions, distal to the terminal abutment provides improved vertical support to the distal extension removable partial denture, effectively converting its intraoral performance from a Kennedy Class I to a Class III situation, thereby resulting in improved stability of the prosthesis and consequently, enhanced patient satisfaction...
October 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27738426/endoscopic-removal-of-ingested-dentures-and-dental-instruments-a-retrospective-analysis
#14
Ken-Ichi Mizuno, Kazuya Takahashi, Kentaro Tominaga, Yuki Nishigaki, Hiroki Sato, Satoshi Ikarashi, Kazunao Hayashi, Takashi Yamamoto, Yutaka Honda, Satoru Hashimoto, Kenya Kamimura, Manabu Takeuchi, Junji Yokoyama, Yuichi Sato, Masaaki Kobayashi, Shuji Terai
Background. Dentures and dental instruments are frequently encountered ingested foreign bodies. The aim of the present study was to assess the safety and efficacy of endoscopically removing ingested dental objects. Methods. Twenty-nine consecutive patients with 29 dental objects who were treated at the Niigata University Medical and Dental Hospital from August 2009 to December 2015 were retrospectively reviewed. Characteristics of the patients and the ingested dental objects, the clinical features and findings of radiological imaging tests, and outcomes of endoscopic removal were analyzed...
2016: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/27688416/flexible-removable-partial-denture-prosthesis-a-survey-of-dentists-attitudes-and-knowledge-in-greece-and-croatia
#15
Gregory Polyzois, Panagiotis Lagouvardos, Josip Kranjcic, Denis Vojvodic
PURPOSE: The aim of this study was to investigate through a questionnaire the knowledge, attitudes and possible differences in the use of flexible RPDPs among dentists in Greece and Croatia. MATERIAL AND METHODS: A questionnaire of 16 questions was originally created in English, translated into Greek and Croatian language following a two way translation and tested for apprehension, precision, clarity and homogeneity by a number of native English speaking Greek and Croatian dentists...
December 2015: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27681164/influence-of-time-and-different-tooth-widths-on-masticatory-efficiency-and-muscular-activity-in-bilateral-free-end-saddles
#16
Mohammed Assayed Mousa, Edward Lynch, Mohd G Sghaireen, Abdalwhab M A Zwiri, Osama A Baraka
PURPOSE: To evaluate the influence of time on masticatory efficiency and muscular activity during mastication of different types of test foods in participants fitted with a lower bilateral free-end saddle removable partial denture (RPD) with wide or narrow teeth. METHODS: Thirty-six participants consented to undergo evaluation of their masticatory efficiency and recording of their muscular activity, while they wore an RPD with a unified bilateral design, during mastication of different types of test foods...
September 29, 2016: International Dental Journal
https://www.readbyqxmd.com/read/27632278/finite-element-analysis-of-implant-assisted-removable-partial-denture-attachment-with-different-matrix-designs-during-bilateral-loading
#17
Reza Shahmiri, Raj Das
PURPOSE: The aim of this study was to investigate the effect of different matrix designs on resilient attachment on an implant-assisted removable partial denture (IARPD) using finite element analysis (FEA). MATERIALS AND METHODS: A laser scanner was used to extract the geometrical data of a human partially edentulous mandible. A 12-mm-long and 4.8-mm-diameter-wide implant was modeled, and two types of intradental attachment of snap fastener principle (elliptical) and resilient attachment (titanium) matrices were modeled along with tooth roots and periodontal ligaments...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27621708/theoretical-considerations-and-a-mathematical-model-for-the-analysis-of-the-biomechanical-response-of-human-keratinized-oral-mucosa
#18
Aikaterini Tsaira, Panagiotis Karagiannidis, Margarita Sidira, Spyros Kassavetis, Dimitris Kugiumtzis, Stergios Logothetidis, Olga Naka, Argirios Pissiotis, Konstantinos Michalakis
Removable complete and partial dentures are supported by the residual alveolar ridges consisting of mucosa, submucosa, periosteum, and bone. An understanding of the biomechanical behavior of the oral mucosa is essential in order to improve the denture-bearing foundations for complete and partially edentulous patients. The purpose of this paper was to examine the biomechanical behavior of the soft tissues supporting a removable denture and develop a model for that reason. Keratinized oral mucosa blocks with their underlying bone were harvested from the maxillary palatal area adjacent to the edentulous ridges of a cadaver...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27621549/mandibular-kennedy-class-i-partial-denture-management-by-broad-stress-distribution-philosophy-radiographic-assessment
#19
Mohammed M Abd El-Khalik, Nesreen H El Mekawy, Sally S El-Kasaby
PURPOSE: The objective of this study was radiographic assessment of the premolar teeth abutments alveolar bone resorption in mandibular Kennedy Class I removable partial denture (RPD) utilizing the broad stress distribution philosophy, either designed with multiple circlet clasp or compound Aker clasp. MATERIALS AND METHODS: Twelve patients were enrolled for this study with upper completely edentulous arch against mandibular Kennedy Class I ridges posterior to the second premolar...
July 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27621545/the-effectiveness-of-adding-a-supporting-implant-in-stress-distribution-of-long-span-fixed-partial-denture-three-dimensional-finite-element-analysis
#20
Rami Shurbaji Mozayek, Mohammad Yamen Shurbaji Mozayek, Mirza Allaf, Mohammad Bassam Abouharb
CONTEXT AND AIMS: Long span is seen in many clinical situations; treatment planning options of these cases are difficult and may require: Fixed partial denture (FPD), removable partial denture, or implant supported prostheses. Each option has its own disadvantages: Mechanical, patient relief, and cost, respectively. This article will evaluate the stress distribution of another treatment option, which is adding a single supporting implant to the FPD using three-dimensional (3D) finite element analysis...
July 2016: Journal of Indian Prosthodontic Society
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