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implant supported overdenture

Darryl Beresford, Iven Klineberg
PURPOSE: This within-subject comparison tested the null hypothesis that there is no difference in patient satisfaction and oral health-related quality of life when an individual with an edentulous mandible is rehabilitated with a two-implant overdenture or a three-implant-supported fixed dental prosthesis. MATERIALS AND METHODS: Twelve subjects with an edentulous mandible or failing dentition were rehabilitated with the use of endosseous dental implants. Three implants were placed, and were immediately loaded with a provisional fixed prosthesis with minimal cantilever...
November 2018: International Journal of Oral & Maxillofacial Implants
X Q Li, X Xu, X N Ma
Objectives: To evaluate the long-term clinical results and patient satisfaction of implant-retained/supported prostheses in edentulous patient based on retrospectively summary of the clinical data of implant-retained/supported prostheses patients. Methods: Edentulous patients who received implant denture treatment between 01/2005 and 12/2016 was included in this study. Soft tissue health, clinical examination, X-ray observation, patient satisfaction with implant-retained/supported prostheses were evaluated...
November 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Rubens Ferreira de Albuquerque, Olivier Fromentin, Claire Lassauzay, Maria da Conceição Pereira Saraiva
BACKGROUND: Clinical success with mandibular implant overdentures is highly dependent on a reliable attachment system connecting prosthesis and implants. PURPOSE: To compare the levels of retention and patient-based outcomes on implant overdentures retained/supported by cylindrical (LA) and ball (RA) attachment systems overtime and investigate their relationship. MATERIALS AND METHODS: Attachment retention (Newtons), and patient satisfaction with the treatment, prosthesis stability, and ability to chew (VAS, 100 mm) were assessed in a crossover trial for both attachment systems at baseline, 1 week, 3, 6, and 12 months and compared to preintervention values...
October 29, 2018: Clinical Implant Dentistry and related Research
Coral J Yao, Cong Cao, Michael M Bornstein, Nikos Mattheos
OBJECTIVE: The aim of this systematic review was to compare patient-reported outcomes measures (PROMs) of implant-supported fixed complete dentures (IFCDs) and overdentures (IODs). MATERIAL AND METHODS: PubMed, Cochrane Library, EMBASE, Scopus and Web of Science were searched, complemented by manual search. Studies published in English up to November 2016 comparing removable with fixed implant-supported prosthesis on fully edentulous patients were included. The review focused on impact on patients' oral health-related quality of life (OHRQoL), satisfaction or other patient-reported outcomes measures...
October 2018: Clinical Oral Implants Research
André Gustavo Paleari, Norberto Martins de Oliveira Junior, Danny Omar Mendoza Marin, Larissa Santana Rodriguez, João Neudenir Arioli Filho, Ana Carolina Pero, Marco Antonio Compagnoni
OBJECTIVE: There is a lack of clinical evidence on mandibular overdentures (MOD) supported by a single implant. To compare patient satisfaction and masticatory performance in MOD supported by one versus two implants in a two-group parallel randomized clinical trial. MATERIAL AND METHODS: Twenty-one patients wearing new maxillary and mandibular complete dentures (CDs) were randomly divided to receive one (GI, n = 11) or two (GII, n = 10) implants in the mandibular arch...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Fabrizio Di Francesco, Gennaro De Marco, Ugo Antonello Gironi Carnevale, Michele Lanza, Alessandro Lanza
PURPOSE: The number of implants needed to support a maxillary overdenture is still a controversial issue. The aim of this systematic review was to investigate the number of implants required to support a maxillary overdenture in order to obtain optimal treatment outcomes in terms of implant survival, overdenture longevity and patient satisfaction. STUDY SELECTION: Pubmed and EMBASE databes were systematically searched and complemented by hand searching from 2000 to 2017...
September 27, 2018: Journal of Prosthodontic Research
Koichiro Kamei, Tomoya Gonda, Toshihito Takahashi, Yoshinobu Maeda
PURPOSE: The purpose of this study was to determine the optimal positioning of implants for maxillary implant-supported overdentures (MIODs) using finite element analysis (FEA). MATERIALS AND METHODS: Three-dimensional (3D) finite element models were built incorporating the maxilla, mucous membrane, removable denture, and artificial teeth using FEA software. Four models were prepared: one without an implant; one with two implants in the region of the lateral incisor; one with two implants in the first premolar region; and one with four implants in the lateral incisor and first premolar regions...
November 2018: International Journal of Prosthodontics
Nikita Khurana, Shobha Rodrigues, Satish Shenoy, Sharon Saldanha, Umesh Pai, Thilak Shetty, Srikant N, M Mahesh, Puneet Hegde
PURPOSE: To analyze and compare the stress distribution in an implant-retained overdenture complex using ball and Locator attachments of three heights by means of a 3D finite element analysis (FEA). MATERIALS AND METHODS: Six finite element models comprising an edentulous mandible with two interforaminal bone-level implants and ball attachments of heights 1 mm (A1), 3 mm (A3), and 5 mm (A5), and Locator attachments of heights 1 mm (B1), 3 mm (B3), and 5 mm (B5), were designed using ANSYS Workbench Software...
September 6, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Jafar Memarian, Mohammad Ketabi, Shahram Amini
Background: One of the most common problems in edentulous patients is the low stability of lower dentures. The most effective method to overcome this problem is implant-supported overdentures. After placing an implant, for the process of osseointegration to be complete and successful, it is better that patients do not use their denture for few months. This may be nonconvenient for patient because they are unable to speak and eat properly. The aim of this study was to evaluate the effect of low level laser (LLL) and light-emitting diode (LED) photobiomodulation on implant stability as well as their effect on interleukin-1 beta (IL-1β) and prostaglandin E2 (PGE2) biomarkers around implant in lower anterior region (over denture)...
July 2018: Dental Research Journal
Stefanos Kourtis, Phoebus Madianos, Michael Patras, Efstathia Andrikopoulou
The rehabilitation of the edentulous mandible with implant-supported overdentures is an established clinical procedure but immediate loading of implants supporting mandibular overdentures has not been equally documented. AIM: The aim of this prospective clinical study was to evaluate the rehabilitation of the edentulous mandible with immediate loading and implant-supported overdentures. MATERIALS AND METHODS: 10 patients were restored with immediate loading of the implants and 5 with delayed loading...
July 2018: Journal of Esthetic and Restorative Dentistry
Mark Edward Packer
Movement disorders encompass a wide range of medical conditions that demonstrate changes to muscle function and tone which present with orofacial dyskinesia and dystonia. The most common conditions exhibiting these features are Parkinson's disease, Down syndrome, chorea and epilepsy. AIM: To establish whether implant success in patients suffering from movement disorders is similar to the general population, identifying risk factors and noting recommendations that may aid maintenance programmes...
2018: European Journal of Oral Implantology
Maarten Glibert, Carine Matthys, Robert-Jan Maat, Hugo De Bruyn, Stijn Vervaeke
PURPOSE: The aim of current split-mouth study is to compare crestal bone loss of hybrid with moderately rough implants in patients with a bar-supported mandibular overdenture. MATERIALS AND METHODS: Fully edentulous patients were enrolled for treatment with implant-supported overdentures. Each patient received two implants of which one moderately rough (Sa: 1.3 μm) and one hybrid surface implant (moderately rough implant body [Sa: 1.3 μm] and a minimally rough implant neck [Sa: 0...
July 26, 2018: Clinical Implant Dentistry and related Research
M M M Michelon, A T Posch, H R Sampaio-Filho, E J V Lourenco, D M Telles
PURPOSE: The purpose of this in vitro study was to compare the stability of removable implant-supported maxillary overdentures with fixed complete dentures and conventional dentures. METHODS: Four types of complete dentures were tested: conventional complete dentures; overdentures retained by a male resilient attachment system; overdentures retained by a combination of clip bar and attachment system; and fixed complete dentures. Each group was placed in the posterior and anterior region and the stability was recorded by measuring the vertical displacement of the prosthesis...
July 19, 2018: Journal of Prosthodontic Research
Lucia Fernandez-Estevan, Javier Montero, Eduardo J Selva Otaolaurruchi, Maria Fernanda Sola Ruiz
PURPOSE: To quantify the rate of maintenance interventions of mandibular prostheses: complete dentures and overdentures retained by two implants, with either internal hex or external hex connections. MATERIALS AND METHODS: This study analyzed patients with edentulous mandibles treated with distinct treatment protocols: a control group received complete dentures; a second group received Locator-retained overdentures supported by two external hex connection implants; and a third group received overdentures supported by internal hex connection implants...
July 2018: International Journal of Oral & Maxillofacial Implants
Toru Kimura, Tsung-Chieh Yang, Yoshinobu Maeda
PURPOSE: To evaluate the bending strain exerted on a maxillary implant overdenture supported by rigid bar and nonrigid double crown connectors in models of high- and low-quality bone. MATERIALS AND METHODS: Four implants were embedded in acrylic resin models of an edentulous maxilla simulating good- and poor-quality bone at the canine and second premolar regions bilaterally. A bar (cross-section dimension: 5 × 5 mm; bilateral distal extension: 10 mm) and double crown connectors with a metal framework (same morphology as the bar) were attached to these implants and placed under a constant 49 N vertical load at the anterior and cantilever regions of both superstructures...
July 2018: International Journal of Oral & Maxillofacial Implants
Emre Tokar, Bulent Uludag
PURPOSE: Implant-retained mandibular overdentures are a proven treatment modality for edentulous patients. Low-profile stud attachments may allow divergence between the abutments up to 40 degrees. The purpose of this study was to investigate load transfer characteristics of various locations and nylon male configurations of low-profile stud attachment-retained overdentures. MATERIALS AND METHODS: Three tapered dental implants were placed into three photoelastic mandibular models...
July 2018: International Journal of Oral & Maxillofacial Implants
Xin Zhang, Wei Liu, Hai Qing, Xibo Pei, Junyu Chen, Jian Wang
OBJECTIVE: Many studies have investigated the effect of implant number on the performance of implant-supported overdentures (ISO), but few have focused on denture movement. This in-vitro study aims to investigate the influence of implant number on the movement of mandibular ISO under biting force. METHOD AND MATERIALS: An edentulous mandibular cast and 12 overdentures (n = 12) were fabricated, and a locator attachment system with blue nylon inserts was chosen for this study...
2018: Quintessence International
H Mather, M Thomason, J Ellis
As the UK witnesses a decline in the number of edentulous adults, there is a simultaneous reduction in the number of cases available to undergraduate dental students for the teaching of complete dentures. When edentulous adults are unable to function with conventional complete dentures, particularly pertaining to the mandibular denture, an implant-supported mandibular overdenture has been evidenced as the gold standard for edentulous patients. The evidence in favour of mandibular implant-supported overdentures is one of the most robust evidence bases for any clinical treatment and similarly it has been shown that undergraduate students are equally as capable in the provision of implant-supported overdentures as experienced prosthodontists...
July 13, 2018: British Dental Journal
Mariana L C Valente, Marcos V W Shimano, José A M Agnelli, Andréa C Dos Reis
STATEMENT OF PROBLEM: The gradual loss of retention and the need for periodic replacement of attachment-system components are the most frequent complications in implant-supported overdentures. PURPOSE: The purpose of this in vitro study was to develop a new attachment system for overdentures with polymeric materials and compare its retention and deformation with a conventional O-ring attachment system. MATERIAL AND METHODS: A matrix with 2 mini-implants with ball abutments was used to simulate the mandibular border during a fatigue resistance test...
June 29, 2018: Journal of Prosthetic Dentistry
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