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implant supported overdenture

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https://read.qxmd.com/read/30745754/retention-and-patient-satisfaction-with-bar-clip-ball-and-socket-and-kerator-attachments-in-mandibular-implant-overdenture-treatment-an-in-vivo-study
#1
Nitish Varshney, Sumit Aggarwal, Shalabh Kumar, S P Singh
Aim: The aim of this in vivo study was to evaluate and compare the retention and patient satisfaction in implant supported mandibular overdenture with three different attachment system. Materials and Methods: After evaluation of prosthetic space, fifteen edentulous subjects received two implants in the inter-foramina region of the mandible and were divided into 3 groups with 5 subjects each, delayed loading protocol was followed in all the patients. The retention force and satisfaction level with the attachments at baseline and after 6 months was measured in a standardised way using retentive device and VAS questionnaire...
January 2019: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/30733841/comparison-of-immediate-and-conventional-loading-protocols-with-respect-to-marginal-bone-loss-around-implants-supporting-mandibular-overdentures-a-systematic-review-and-meta-analysis
#2
REVIEW
Minoru Sanda, Kenji Fueki, Pranjal Radke Bari, Kazuyoshi Baba
Purpose: To compare marginal bone level changes (MBLCs) of immediately- and conventionally-loaded implants supporting a mandibular implant overdenture (IOD). Materials and methods: Both electronic (MEDLINE, PubMed, and The Cochrane Library) and manual searches were conducted for all relevant studies published from 1 January 2000 to 1 November, 2017. Randomized controlled trials (RCTs) and prospective studies with a minimum follow-up of 12 months were selected. Studies which utilized implants narrower than 3 mm were excluded from analysis...
November 2019: Japanese Dental Science Review
https://read.qxmd.com/read/30714227/patient-reported-outcome-measures-proms-and-maintenance-events-in-2-implant-supported-mandibular-overdenture-patients-a-five-year-prospective-study
#3
Yuxuan Zhang, Luke Chow, Adam Siu, George Fokas, T W Chow, Nikos Mattheos
OBJECTIVE: To prospectively evaluate Patient Reported Outcome Measures (PROMs) and treatment outcomes of mandibular two-implant retained overdentures (IOD) in an edentulous geriatric cohort with history of deficient Complete Dentures (CD). MATERIALS AND METHODS: 103 patients with deficient CD received new optimal CD. After a period of 3 months, 80 of the patients voluntarily received IOD. Outcomes collected at pre-, post-CD/post-IOD treatment annually up to 5 years, included: A) Clinical outcomes: denture-quality (Woelfel's index), complications, and maintenance events, B) PROMs: patient complaints (maxillary, mandibular functional complaint scores, generic aesthetic complaint scores, frequency, and intensity of complaints) and patient satisfaction, C) Maintenance events: technical complications and adverse events...
February 3, 2019: Clinical Oral Implants Research
https://read.qxmd.com/read/30713177/clinical-performance-of-implant-overdenture-versus-fixed-detachable-prosthesis
#4
Aiman O Johar
AIM: To evaluate the satisfaction of completely edentulous patients with a different number of implants to retain removable and support the fixed prosthesis. MATERIALS AND METHODS: Fifty patients with the single edentulous ridge (maxilla or mandible) were selected for this study and divided equally into five groups. Each group contained 10 patients. Group 1: conventional complete denture (negative control group), group 2: two implants retained overdenture, group 3: three implants retained overdenture, group 4: four implants retained overdenture, group 5: fixed detachable prosthesis with five implants placed between the mental foramen...
December 1, 2018: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/30711295/clinical-outcomes-of-immediately-loaded-implant-supported-overdentures-a-long-term-prospective-clinical-trial
#5
Sara A Alfadda, David Chvartszaid, Abdullah AlFarraj Aldosari
STATEMENT OF PROBLEM: Long-term evidence of immediate loading of dental implants with bar overdentures is lacking. PURPOSE: The purpose of this clinical study was to assess the clinical outcomes of immediate and conventional loading protocols of mandibular overdentures supported by 2 dental implants 14 years after initial placement. MATERIAL AND METHODS: Two groups of edentulous patients who received two TiUnite implants were enrolled in this study...
January 30, 2019: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/30711289/implant-supported-overdentures-with-different-clinical-configurations-mechanical-resistance-using-a-numerical-approach
#6
Guillermo de la Rosa Castolo, Sonia V Guevara Perez, Pierre-Jean Arnoux, Laurent Badih, Franck Bonnet, Michel Behr
STATEMENT OF PROBLEM: Implant-supported overdentures (IODs) are a treatment option for patients with complete edentulism. However, this treatment increases the possibilities of peri-implant complications, characterized by inflammation or partial loss of surrounding hard and soft tissues. PURPOSE: The purpose of this finite element analysis study was to evaluate the mechanical performance of different bar-IOD designs under different clinical configurations by comparing the stress and strain distribution on the bone during secondary stabilization...
January 30, 2019: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/30644828/fatal-case-of-oral-metastatic-hepatocellular-carcinoma-in-a-patient-unaware-of-his-disease
#7
Marcos Custódio, Camilla Vieira Esteves, Norberto Nobuo Sugaya, Suzana Com de Sousa, Celso Augusto Lemos
Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer. Metastases to the soft tissues of the oral cavity are extremely uncommon. This report describes a rare case of an oral metastatic HCC, located completely within the oral mucosa overlying the alveolar ridge, in a patient who was unware of his primary disease. A 64-year-old man was referred for evaluation of a nodular mass on the edentulous mandibular ridge underneath an implant-supported overdenture. According to the patient, he was successfully treated for hepatitis C infection 7 years previously, and he reported that his α-fetoprotein levels were monitored at semiannual intervals...
January 2019: General Dentistry
https://read.qxmd.com/read/30636064/four-or-6-implants-in-the-maxillary-posterior-region-to-support-an-overdenture-5-year-results-from-a-randomized-controlled-trial
#8
Wim Slot, Gerry M Raghoebar, Marco S Cune, Arjan Vissink, Henny J A Meijer
OBJECTIVE: To compare clinical and patient-reported outcomes when providing maxillary overdentures on 4-bar and 6-bar connected implants placed in the posterior region during a 5-year follow-up period. MATERIALS AND METHODS: Sixty-six fully edentulous patients with functional maxillary denture complaints and insufficient bone volume to allow implant placement were scheduled for a maxillary sinus floor elevation procedure with bone from the anterior iliac crest and randomized to receive either 4 or 6 implants in the posterior maxilla and 4 implants in the mandible...
January 12, 2019: Clinical Oral Implants Research
https://read.qxmd.com/read/30630258/-three-dimensional-finite-element-analysis-of-four-implants-supported-mandibular-overdentures-using-two-different-attachments
#9
M Y Jiang, J Wen, S S Xu, T S Liu, H Q Sun
Objective: To compare the biomechanical characteristics of four-implants mandibular overdentures supported by Locator attachment or bar-clip attachment under different mechanical loads using three-dimensional finite element analysis method. Methods: Two different models of four-implants supported mandibular overdentures using Locator attachment and bar-clip attachment (hereinafter called Locator model and bar-clip model) were established. Each model was subjected to five different mechanical loading conditions: 100 N vertical loading in central incisor (vertical load of incisor), 100 N vertical loading or oblique loading in canine (vertical or oblique loads of canines), 100 N vertical or oblique loading in mandibular first molar (vertical or oblique loads of mandibular first molar)...
January 9, 2019: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://read.qxmd.com/read/30602646/effect-of-cyclic-dislodging-on-the-retention-of-two-attachment-systems-for-implant-supported-overdentures-an-in-vitro-study
#10
Hani Tohme, Joseph Makzoume, Paul Boulos, Jihad Fakhoury, Carole Yared, Ziad Salameh, Maha Daou
PURPOSE: The aim of this study was to compare and evaluate the retention of two new attachment systems used for implant-supported overdentures subjected to insertion-removal cycles. MATERIALS AND METHODS: Twenty custom-manufactured polyvinyl chloride models mimicking implant-retained over-dentureresin blocks were fabricated and divided into two groups (n = 10): group 1 ('Kerator' attachment) and group 2 ('EMI' attachment). Each model received two parallel implants (JD evolution®) 20 mm apart and was subjected to cyclic retention forces of 10, 100, 1000, 5000, 10000 and 14600 cycles using a universal testing machine in a 0...
November 1, 2018: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/30601018/systematic-treatment-planning-protocol-of-the-edentulous-maxilla-for-an-implant-supported-fixed-prosthesis
#11
Edmond Bedrossian, Edmond Armand Bedrossian
Patients who are candidates for implant restoration of a completely edentulous maxilla may benefit from a fixed prosthesis rather than a removable tissue-supported overdenture prosthesis. Multiple surgical approaches are available to provide this type of care. Graftless strategies, such as those that utilize tilted implants, including zygomatic implants, allow the surgeon to establish adequate support for a fixed prosthesis without bone grafting by establishing sufficient anterior-posterior distribution of implants, thereby reducing or eliminating the use of distal cantilevers...
January 2019: Compendium of Continuing Education in Dentistry
https://read.qxmd.com/read/30594062/biomechanical-aspects-of-reinforced-implant-overdentures-a-systematic-review
#12
REVIEW
Mona Fathy Gibreel, Ahmed Khalifa, Mohamed Mostafa Said, Fatma Mahanna, Nesma El-Amier, Timo O Närhi, Leila Perea-Lowery, Pekka K Vallittu
PURPOSE: The purpose of this systematic review was to investigate the effect of reinforcement on the mechanical behaviour of implant overdenture (IOD) bases and its cumulative biological effect on the underlying supporting structures (implants and the residual ridge). MATERIAL AND METHODS: The required documents were collected electronically from PubMed and Web of Science databases targeting papers published in English that focused on denture base reinforcement for IOD prostheses in order to recognize the principal outcomes of reinforcement on the mechanical and biological properties of overdentures...
December 11, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/30545100/are-edentulousness-oral-health-problems-and-poor-health-related-quality-of-life-associated-with-malnutrition-in-community-dwelling-elderly-aged-75-years-and-over-a-cross-sectional-study
#13
Mieke H Bakker, Arjan Vissink, Sophie L W Spoorenberg, Harriët Jager-Wittenaar, Klaske Wynia, Anita Visser
As the population ages, the risk of becoming malnourished increases. Research has shown that poor oral health can be a risk factor for malnutrition in institutionalized elderly. However, it remains unclear whether oral health problems, edentulousness and health-related quality of life also pose a risk for malnutrition in community-dwelling older adults. In this cross-sectional observational study, 1325 community-living elderly (≥75 years) were asked to complete questionnaires regarding nutritional status, oral status (edentulous, remaining teeth, or implant-supported overdentures), oral health problems, health-related quality of life (HRQoL), frailty, activities of daily living (ADL) and complexity of care needs...
December 12, 2018: Nutrients
https://read.qxmd.com/read/30534172/stress-analysis-of-mandibular-implant-overdentures-retained-with-one-two-or-four-ball-attachments-a-finite-element-study
#14
Mohamed M El-Zawahry, Eman M Ibraheem, Mohammad Zakaria Nassani, Sahar A Ghorab, Mohamed I El-Anwar
Background: The aim of this study is to compare stress patterns induced by ball attachments when used to retain mandibular overdentures supported by one, two, or four dental implants. Materials and Methods: In this finite element study, three 3D models were prepared to simulate mandibular implant overdentures retained by one or two or four ball attachments of 3.5 mm diameter with collar height 1.6 mm. The geometric solid models were created by commercial engineering computer-aided design package then transferred to ANSYS as set of standard ACIS text files...
November 2018: Dental Research Journal
https://read.qxmd.com/read/30532480/crnc8-implant-supported-overdenture-rehabilitation-with-a-3d-printed-framework-for-a-mandibulectomy-patient-a-case-report
#15
Yen-Ju Fang, Yen-Wen Shen, Lih-Jyh Fuh
No abstract text is available yet for this article.
October 2018: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/30532471/crc18-restoration-with-implant-supported-maxillary-overdenture-and-implant-assisted-mandibular-rpd-using-double-scanning-method-and-rapid-prototyping-technique
#16
Hong-Taek Jung, Ki-Sun Lee, Jin-Hong Park, Jeong-Yol Lee
No abstract text is available yet for this article.
October 2018: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/30522201/-role-of-occlusion-in-complications-of-implant-rehabilitation
#17
P Gong
Peri-implantitis, restoration loosening and fracture, implant structural damage are common post-restorative complications in implant rehabilitation. With an increasing incidence, they may occur in implant-supported single or splinted crowns, bridges, overdenture or fixed denture. Possible causes involve not only the design of implant components structure and characteristics of restorative materials, but also the design of restoration and the occlusal function and structure of patients. Despite the hard texture of teeth, occlusal force may cause abrasion to occlusal and proximal aspects, as well as mesial migration of tooth, leading to continuous change of occlusal structure and function through the whole life...
December 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://read.qxmd.com/read/30517481/retention-force-and-wear-characteristics-of-three-attachment-systems-after-dislodging-cycles
#18
Danny Omar Mendoza Marin, Andressa Rosa Perin Leite, Norberto Martins de Oliveira Junior, André Gustavo Paleari, Ana Carolina Pero, Marco Antonio Compagnoni
Several attachment systems for mandibular implant-supported overdentures are currently available and studies are required to understand their mechanical properties. The objective of this study was to evaluate the retention force and wear characteristics of three attachment systems in a simulation of the cyclic dislodging of implant-supported overdentures. Thirty samples were fabricated and divided into 3 groups: 1-O-ring; 2-Mini Ball; and 3-Equator. A mechanical fatigue test was applied to the specimens using a servo-hydraulic universal testing machine performing 5500 insertion/removal cycles (f=0...
November 2018: Brazilian Dental Journal
https://read.qxmd.com/read/30500094/effect-of-implant-supported-mandibular-overdentures-versus-reline-on-masticatory-performance-and-salivary-flow-rates-in-very-old-adults-a-randomized-clinical-trial
#19
Sabrina Maniewicz, Elena Duvernay, Murali Srinivasan, Thomas Perneger, Martin Schimmel, Frauke Müller
PURPOSE: To compare the masticatory efficiency (ME), maximum voluntary bite force (MBF), masseter muscle thickness (MMT) and salivary flow rates (SFR) in completely edentulous dependent elders treated either with a conversion of their existing mandibular complete removable dental prostheses (CRDP) into a 2-implant overdenture (IOD) or a conventional reline of the CRDP. MATERIAL AND METHODS: Participants were randomly allocated into intervention (IG), and control (CG) group...
November 30, 2018: Clinical Oral Implants Research
https://read.qxmd.com/read/30498177/effects-of-excessive-implant-angulation-on-retention-of-two-types-of-overdenture-attachments-during-cyclic-loading
#20
Hadi Teimoori, Sayed S Shayegh, Maryam A Zavaree, Seyed Mr Hakimaneh, Farinaz Khodadad, Shireen Shidfar, Mohammad T Baghani
AIM: This study investigated the effects of implant angulation and cyclic dislodgment on retention of Locator and Dalbo Plus attachments. MATERIALS AND METHODS: Fifty pairs of acrylic blocks for five implant angulations (0, 10, 20, 30 and 40 degrees) and two attachment systems (locator and Dalbo Plus®; n = 5) were fabricated. In each pair, one block contained two implant analogs connected to their attachments, and the other block contained matrix parts of the attachments...
October 1, 2018: Journal of Contemporary Dental Practice
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