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Removable Partial Denture

Matshediso Mothopi-Peri, C Peter Owen
PURPOSE: To compare the influence of abutment teeth guide planes and guiding surfaces on retention of a removable partial denture (RPD). MATERIALS AND METHODS: Extracted teeth embedded into a maxillary cast in the first premolar and second molar positions simulated two bounded saddles. Acrylic resin RPDs were made with no guide planes, then with guide planes, then with guiding surfaces added to directly contact the guide planes. The maximum loads on removal from the cast were recorded...
March 2018: International Journal of Prosthodontics
Mariana Linhares Almeida, Ana Clara Soares de Paiva Tôrres, Kleiton Clécio de Oliveira, Patrícia Dos Santos Calderon, Adriana da Fonte Porto Carreiro, Bruno César de Vasconcelos Gurgel
PURPOSE: To evaluate the effect of basic periodontal treatment on clinical periodontal parameters associated with abutment teeth of patients with mandibular Kennedy class I removable partial dentures (RPD) 18 months after treatment. MATERIALS AND METHODS: Thirty patients with periodontal disease were treated and evaluated according to the following periodontal parameters: visible plaque index (VPI), bleeding on probing (BOP), probing depth (PD), gingival recession (GR), clinical attachment loss (CAL), and keratinized mucosa (KM)...
March 6, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Hironari Hayama, Kenji Fueki, Juro Wadachi, Noriyuki Wakabayashi
PURPOSE: It remains unclear whether digital impressions obtained using an intraoral scanner are sufficiently accurate for use in fabrication of removable partial dentures. We therefore compared the trueness and precision between conventional and digital impressions in the partially edentulous mandible. METHODS: Mandibular Kennedy Class I and III models with soft silicone simulated-mucosa placed on the residual edentulous ridge were used. The reference models were converted to standard triangulated language (STL) file format using an extraoral scanner...
March 1, 2018: Journal of Prosthodontic Research
Yasuhiro Tanimoto, Manamu Nagakura, Norihiro Nishiyama
PURPOSE: The purpose of this study was to investigate the combined effects of fiber loading and pigmentation on the color differences and flexural properties of glass fiber-reinforced thermoplastics (GFRTPs), for use in non-metal clasp dentures (NMCDs). METHODS: The GFRTPs consisted mainly of E-glass fibers, a polypropylene matrix, and a coloring pigment: the GFRTPs with various fiber loadings (0, 10, and 20mass%) and pigmentations (0, 1, 2, and 4mass%) were fabricated by using an injection molding...
February 20, 2018: Journal of Prosthodontic Research
D P Laverty, K Fairbrother, O Addison
BACKGROUND: This systematic review aims to evaluate the survival of retaining or replacing deciduous teeth in hypodontia patients with a variety of prosthetic tooth replacement options, to evaluate prognostic factors associated with retaining deciduous teeth, and report on patient based outcomes with these treatment modalities. METHODS: MEDLINE, The Cochrane Central Register of Controlled Trials and Science Direct databases were searched (01/1980 - 08/2017) for studies reporting outcomes associated with retaining or replacing deciduous teeth via prosthetic means in adult hypodontia patients...
February 20, 2018: Community Dental Health
Hongqiang Ye, Xinxin Li, Guanbo Wang, Jing Kang, Yushu Liu, Yuchun Sun, Yongsheng Zhou
PURPOSE: To investigate a computer-aided design/computer-aided manufacturing (CAD/CAM) process for producing one-piece removable partial dentures (RPDs) and to evaluate their fits in vitro. MATERIALS AND METHODS: A total of 15 one-piece RPDs were designed using dental CAD and reverse engineering software and then fabricated with polyetheretherketone (PEEK) using CAM. The gaps between RPDs and casts were measured and compared with traditional cast framework RPDs...
February 15, 2018: International Journal of Prosthodontics
Mirza Rustum Baig, Jaber Hussain Akbar, Muawia Qudeimat, Ridwaan Omar
PURPOSE: To evaluate the effects of impression material, impression tray type, and type of partial edentulism (ie, Kennedy class) on the accuracy of fit of cobalt-chromium (Co-Cr) partial removable dental prostheses (PRDP) in terms of the number of fabricated frameworks required until the attainment of adequate fit. MATERIALS AND METHODS: Electronic case documentations of 120 partially edentulous patients provided with Co-Cr PRDP treatment for one or both arches were examined...
February 15, 2018: International Journal of Prosthodontics
Javier Montero, Abraham Dib, Yasmina Guadilla, Javier Flores, Juan Antonio Santos, Rosa Anaya Aguilar, Cristina Gómez-Polo
The aim of this study was to compare the perceived competence for treating prosthodontic patients of two samples of fourth-year dental students: those educated using traditional methodologies and those educated using problem-based learning (PBL). Two cohorts of fourth-year dental students at a dental school in Spain were surveyed: the traditional methods cohort (n=46) was comprised of all students in academic years 2012 and 2013, and the PBL cohort (n=57) was comprised of all students in academic years 2014 and 2015...
February 2018: Journal of Dental Education
Satyabodh Shesharaj Guttal, Ramesh K Nadiger, Pravinkumar Shetty
Context: Dental magnets are used for retaining removable prostheses such as a removable partial denture, complete denture, and maxillofacial prosthesis. They provide good retention for the prostheses. However, the elements released from the magnets may be cytotoxic for the tissues. Therefore, it is necessary to evaluate their cytotoxic effect on cell lines. Aim: The aim of the study is to check the cytotoxic effect of indigenously fabricated dental magnets on animal cell lines...
January 2018: Journal of Indian Prosthodontic Society
Olcay Sakar, Zeliha Matur, Zeynep Mumcu, Pinar Sesen, Emre Oge
Oromandibular dystonia (OMD) is defined as a subset of movement disorders characterized by involuntary muscle contraction in different parts of the oromandibular region. This clinical report presents a multidisciplinary approach to the management of a patient with OMD. The involuntary movement of her mandible and tongue was improved with a mandibular custom occlusal splint and maxillary modified removable complete denture together with botulinum toxin A injections.
February 8, 2018: Journal of Prosthetic Dentistry
Mana Torii, Toyoki Nakata, Kazuya Takahashi, Noboru Kawamura, Hidemasa Shimpo, Chikahiro Ohkubo
PURPOSE: With computer-aided design and computer-aided manufacturing (CAD/CAM), the study was conducted to create a removable partial denture (RPD) framework using repeated laser sintering rather than milling and casting techniques. This study experimentally evaluated the CAM clasp and compared it to a conventional cast clasp. METHODS: After the tooth die was scanned, an Akers clasp was designed using CAD with and without 50μm of digital relief on the occlusal surface of the tooth die...
February 7, 2018: Journal of Prosthodontic Research
Vesna Korunoska-Stevkovska, Ljuben Guguvcevski, Zaklina Menceva, Nikola Gigovski, Aneta Mijoska, Julijana Nikolovska, Emilija Bajraktarova-Valjakova
BACKGROUND: The success of prosthetic rehabilitation in patients with removable dentures depends on the achievement of the aesthetics, phonetics and most of all, proper use in the mastication process. All the patients that receive removable prostheses need a feeding education program. They must cut the food into smaller pieces, extend the length of time necessary for chewing and place the food upon both the right and left sides of the mouth at once. Bilaterally chewing with dentures will contribute to increased efficiency and denture stability during mastication...
December 15, 2017: Open Access Macedonian Journal of Medical Sciences
Reem H Wahbi, Elfatih I Elamin
INTRODUCTION: Tooth loss can affect a patient's quality-of-life (QoL), impacting on aspects, such as nutritional intake, psychological status, self-image, and daily engaging in social interaction. The purpose of this study was to assess the oral health-related QoL (OHRQoL) among adult Sudanese patients wearing removable partial dentures (RPDs) by utilizing oral health impact profile-14 (OHIP-14) to assess patient satisfaction with their dentures. MATERIALS AND METHODS: The study population included 370 adult patients wearing RPDs...
January 1, 2018: Journal of Contemporary Dental Practice
Khalid A O Arafa
To assess the level of evidence that supports the quality of fit for removable partial denture (RPD) fabricated by computer-aided designing/computer aided manufacturing (CAD/CAM) and rapid prototyping (RP) technology. Methods: An electronic search was performed in Google Scholar, PubMed, and Cochrane library search engines, using Boolean operators. All articles published in English and published in the period from 1950 until April 2017 were eligible to be included in this review. The total number of articles contained the search terms in any part of the article (including titles, abstracts, or article texts) were screened, which resulted in 214 articles...
January 2018: Saudi Medical Journal
Ning Gan, Yaye Ruan, Jian Sun, Yaoyang Xiong, Ting Jiao
The objective was to compare the adaptation between the major connectors of removable partial dentures derived from intraoral digital impressions and extraoral digital impressions. Twenty-four volunteers were enrolled. Each volunteer received an intraoral digital impression and one extraoral digital impression digitized from conventional gypsum impression. A software was used to create the major connectors on digital impression datasets. After all the virtual major connectors designed from Group intraoral digital impressions (Group I) and Group extraoral digital impressions (Group E) were directly fabricated by 3D printing technique, the adaptation of the final major connectors in volunteers' mouths were measured...
January 11, 2018: Scientific Reports
Sabiha Zelal Ülkü, Filiz Acun Kaya, Ersin Uysal, Belgin Gulsun
BACKGROUND Implants that can be used in the prosthetic rehabilitation of full and partial edentulous patients are now frequently used due to advances in dentistry. Despite advanced methods of applications, failures and complications can still be seen. The aim of our study was to evaluate clinical prosthetic values and complications that occurred during 4-year follow-up in implant-supported restorations. MATERIAL AND METHODS This retrospective study included 40 patients who received oral rehabilitation with an implant-supported prosthesis...
December 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
André Ricardo Maia Correia, Fábio Daniel da Silva Lobo, Mónica Célia Pereira Miranda, Filipe Miguel Soares Framegas de Araújo, Tiago Miguel Santos Marques
The purpose of this study was to evaluate whether the use of removable partial dentures affects the periodontal status of abutment teeth. An observational cross-sectional study was done on a sample of patients rehabilitated with removable partial dentures (2010 to 2013). At a recall appointment, a clinical examination was done to collect data related to the rehabilitation and periodontal status of the abutment teeth. Of 145 invited patients, 54 attended the requested follow-up appointment (37.2%). Mean patient age was 59...
December 15, 2017: International Journal of Periodontics & Restorative Dentistry
Stefan Fickl, Frederic Kauffmann, Christian F Stappert, Anke Kauffmann, Ulrich Schlagenhauf
The aim of this retrospective case control study was to compare a porcine collagen matrix (Mucograft Seal, Geistlich) with a free gingival punch graft with respect to size, invagination, and color of resulting soft tissue scar formation. Following definition of inclusion and exclusion criteria, 22 patients were retrospectively included in this study. The patients were divided into two groups. In group A, the extraction socket was filled with bovine bone mineral (Bio-Oss, Geistlich) and covered with a free gingival punch graft...
January 2018: International Journal of Periodontics & Restorative Dentistry
Qingli Chen, Keremu Abasi, Zhongcheng Gong, Bin Ling, Hui Liu, Bo Shao
OBJECTIVES: The aim of this study was to present the use of inferiorly pedicled nasolabial flap (IPNF) in the reconstruction of anterior maxilla defects class I and II. METHODS: Seven patients, 4 females and 3 males, aging from 38 to 75 (mean = 55.9) years old, from 2014 to 2017 reconstructed anterior part of maxilla with or without oronasal communication were included in this study. Five patients diagnosed with squamous cell carcinoma, 1 patient presented with epithelial-myoepithelial carcinoma, and 1 patient had ameloblastoma...
December 12, 2017: Journal of Craniofacial Surgery
Octavi Ortiz-Puigpelat, Aida Lázaro-Abdulkarim, Javier-María de Medrano-Reñé, Jordi Gargallo-Albiol, Josep Cabratosa-Termes, Federico Hernández-Alfaro
PURPOSE: To determine the ideal position of a dental implant to assist a posterior extended partial removable dental prosthesis (PRDP), through stress values, displacement values, and deformation of periodontal ligament (PDL). MATERIALS AND METHODS: A finite element analysis of different implant positions was analyzed using a 3D mandible model from a human patient. Test models were created: model A (implant in second molar area), model B (implant in the first molar area), and model C (implant in premolar area)...
December 13, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
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