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removable denture

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
Saturnino Marco Lupi, Matteo Cislaghi, Silvana Rizzo, Ruggero Rodriguez Y Baena
BACKGROUND: The onset of perioral wrinkles often prompts patients to request treatment. This aesthetic deterioration linked to aging may be associated with tooth and alveolar bone loss in fully edentulous patients. PURPOSE: To evaluate perioral wrinkles before and after maxillary and mandibular rehabilitation with implant-retained dentures in fully edentulous patients. METHODS: In this prospective cohort, single-center, blinded study, patients requiring maxillary and mandibular rehabilitation with implant-retained dentures were enrolled...
2016: Clinical, Cosmetic and Investigational Dentistry
Roberto Marra, Alessandro Acocella, Rispoli Alessandra, Scott D Ganz, Andrea Blasi
OBJECTIVE: The purpose of this report is to compare satisfaction of patients rehabilitated with full-mouth fixed prostheses using computer-aided flapless implant placement and immediate loading with patients rehabilitated with conventional removable prostheses. MATERIALS AND METHODS: The study included 30 consecutive fully edentulous patients who received 312 implants and 30 matched controls treated with conventional removable prostheses. Mandible and maxilla were treated in the same surgical session with computer-guided flapless approach using NobelGuide protocol...
October 4, 2016: Implant Dentistry
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
Andrés Felipe Cartagena, Luís Antonio Esmerino, Rogerio Polak-Junior, Sibelli Olivieri Parreiras, Milton Domingos Michél, Paulo Vitor Farago, Nara Hellen Campanha
OBJECTIVE: The purpose of this study was to develop a new oral drug delivery system by incorporating polymeric miconazole nitrate (MN) microparticles on an experimental antifungal denture adhesive (DA). METHODS: Spray drying Eudragit L-100 (E) and Gantrez MS-955 (G) MN-microparticles were incorporated in DA. DAE1, DAG1, DAEG1, DAE2, DAG2, DAEG2 groups were obtained from the combination of polymers used in MN-microparticles (E, G and EG) and concentration of MN into DA (1, for 1% and 2, for 2%)...
October 10, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
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
Prajna P Shetty, Makam Gangaiah, Ramesh Chowdhary
INTRODUCTION: Every patient needs a comprehensive treatment planning. Dentists must consider the advantages and disadvantages of the available implant prosthetic options and match them to patient's expectations. Hybrid denture prosthesis is one, i.e., fabricated and retained by screw threaded into implant abutments, most of the time on four implants. Sometimes due to failure of an implant, the prosthesis needs to be replaced with a newer casting to accommodate the existing implants. Clinical consideration: This article presents a novel technique, wherein the existing framework of the fixed prosthesis can be used to convert the fixed prosthesis to removable prosthesis on the existing implants, without recasting...
September 1, 2016: Journal of Contemporary Dental Practice
Elisenda Martori, Raúl Ayuso-Montero, Eva Willaert, Miguel Viñas, Maria Peraire, Jordi Martinez-Gomis
PURPOSE: Colonization by Candida is related to wearing a denture. How denture type, status, and maintenance play a role in determining Candida colonization remains unknown. This work evaluated removable denture status in an elderly population and explored the association between denture-related factors and oral Candida colonization as determined by systemic and local factors. MATERIALS AND METHODS: Socio-demographic, general health, and behavioral data and oral factors were registered by means of a questionnaire...
October 6, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Francesco Ravasini, Matteo Fornari, Mauro Bonanini
BACKGROUND: The use of photogrammetry may be a new method to quantify the amount of artificial dental material removed from the surface of each teeth during the grind procedure (SG). SG is necessary in each denture to reach a correct occlusion. It consists in a refine action on the prosthesis teeth's surface using milling machine tools, aimed to remove the interferences (pre-contacts) between upper and lower teeth during chewing. This measure is achieved after a comparison between pre and post-grinding 3D models...
December 2016: Minerva Stomatologica
Amani Ramadan Moussa, Wessam Mohamed Dehis, Asmaa Nabil Elboraey, Hisham Samir ElGabry
AIM: This study aimed to verify the influence of oral environment and denture cleansers on the surface roughness and hardness of two different denture base materials. METHODS: A total of sixteen identical removable disc specimens (RDS) were processed. Eight RDS were made from heat-cured acrylic resin (AR) and the other eight were fabricated from thermoplastic injection moulded resin (TR). Surface roughness and hardness of DRS were measured using ultrasonic profilometry and Universal testing machine respectively...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
Ricardo Morandi, Leonardo Moreira Cabral, Márcio de Moraes
An implant-supported fixed dental prosthesis is one of the treatment options for an individual with a completely edentulous maxilla. However, a screw-retained or cemented prosthesis can make oral hygiene difficult, especially for patients with a history of periodontal disease or disabilities. Compared with maxillary fixed dental prostheses, implant-supported overdentures offer similar retention and function and facilitate esthetics, phonetics, and hygiene. This report describes the prosthetic rehabilitation of a patient with an edentulous maxilla and a severe maxillomandibular discrepancy that involved the use of a novel prefabricated telescopic system to retain an implant-supported removable dental prosthesis...
September 28, 2016: Journal of Prosthetic Dentistry
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
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
Jung-Hwan Lee, Ahmed El-Fiqi, Jeong-Ki Jo, Dong-Ae Kim, Si-Chul Kim, Soo-Kyung Jun, Hae-Won Kim, Hae-Hyoung Lee
OBJECTIVE: Poly(methyl methacrylate) (PMMA) used as removable denture bases or orthodontic appliances has relatively poor antimicrobial properties, which accelerate oral infection and induce unfavorable odors. Mesoporous silica nanoparticles (MSNs) have been highlighted as a potential additive to overcome this issue because of their drug-loading capacity. Here, we present the long-term antimicrobial effect of MSN-incorporated PMMA with drug-loading capacity. METHODS: After the MSNs were characterized, MSN incorporation into chemically activated PMMA (0...
September 23, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
Marcello Guzman Letelier, Claudia Crisosto Jara, Sonia Peà Arrocha-Oltra, Sonia Gomar-Vercher, Miguel Peà Arrocha
Epidermolysis bullosa (EB) is a rare disease affecting the skin and mucus membranes, which is characterized by the formation of blisters in response to minimum trauma. The use of endosseous implants for fixed prosthetic restoration in patients with Recessive Dystrophic Epidermolysis Bullosa (RDEB) provides considerably better results than conventional methods using removable dentures. The objective of this clinical case is to describe the restoration of the full arch of an atrophic maxilla using endosseous implants and an implant-supported fixed prosthetic in a patient diagnosed with RDEB and exhibiting severe general and oral symptoms; and to evaluate improvements in the quality of life of the patient...
September 26, 2016: Journal of Oral Implantology
Duygu Karakis, Canan Akay, Burcin Oncul, Abbas Y Rad, Arife Dogan
The aim of the present study was to compare the effects of some disinfectants, including ethanol extract of propolis (EEP), on the adhesion of Candida albicans to denture base resins. Seventy-two acrylic resin samples were prepared, half of which was polished and the other half was roughened. C. albicans strain ATCC 10231 was incubated on Sabouraud dextrose agar (SDA) at 37°C for 48 h. The adhesion period was completed by keeping the cells in this suspension for 90 min at 37°C. Specimens were then immersed in the following solutions: 1%, 2%, and 5% sodium hypochlorite; 4% chlorhexidine gluconate; and 10% EEP...
2016: Journal of Oral Science
Laura Lago, Benito Rilo, Noelia Fernández-Formoso, Luis DaSilva
Rehabilitation with implants is a challenge. Having previous evaluation criteria is key to establishing the best treatment for the patient. In addition to clinical and radiological aspects, the prosthetic parameters must be taken into account in the initial workup, since they allow discrimination between fixed and removable rehabilitation. We present a study protocol that analyzes three basic prosthetic aspects. First, denture space defines the need to replace teeth, tissue, or both. Second, lip support focuses on whether or not to include a flange...
September 23, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
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
Moustafa Abdou ELsyad, Nora Nory Agha, Ahmed Ali Habib
PURPOSE: The aim of this study was to evaluate and compare the retention and stability of mandibular implant overdentures using different types of resilient attachments. MATERIALS AND METHODS: Two implant analogs were inserted in the canine areas of an acrylic edentulous mandibular model. A metal-reinforced experimental overdenture was constructed and connected to the implant analogs (on two occasions) using either resilient telescopic or Locator attachments. Locators were divided into three subgroups according to the degree of retention of the male nylon insert: Locator extra-light retention (blue insert), Locator light retention (pink insert), and Locator medium retention (transparent insert)...
September 2016: International Journal of Oral & Maxillofacial Implants
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
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