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Prosthodontic attachments

J N Besford, A F Sutton
Patients requiring dentures are getting older and as a result can be difficult to treat owing to various co-morbidities. This series of papers presents an overview of the processes involved in making removable dentures which the patient considers to be functionally and aesthetically successful. We hope not only to provide technical suggestions but also to address the issue of the clinician's, technician's and dental nurse's relationships with the dentally depleted patient. It is increasingly clear from defence organisation reports that this has a decisive effect on the success of this fundamentally difficult enterprise ('The only branch of dentistry in which you are trying to attach something to nothing' [Hubert Aïche])...
January 12, 2018: British Dental Journal
Ahmed Mohamed Keshk, Ahmed Yaseen Alqutaibi, Radhwan S Algabri, Mostafa S Swedan, Amal Kaddah
The mandibular implant-retained overdentures (MIRO) are a highly successful prosthetic treatment option. However, an argument still present regarding its design and type of attachment system. This systematic review and meta-analysis aimed to perform a qualitative and quantitative analysis of the scientific literature regarding the telescopic attachments versus other attachment systems retaining mandibular implant overdentures. Manual and electronic database (PubMed and Cochrane) searches were performed to identify randomized controlled trials (RCTs) comparing telescopic versus other attachment systems...
October 2017: European Journal of Dentistry
Nils-Claudius Gellrich, Rüdiger M Zimmerer, Simon Spalthoff, Philipp Jehn, Philipp-Cornelius Pott, Majeed Rana, Björn Rahlf
OBJECTIVES: Numerous procedures including soft and hard tissue reconstructions are necessary to allow for final implant-borne dental rehabilitation in patients with severe alveolar atrophy or resected jaws. In these cases, customised digitally engineered patient solutions for fixed or removable dental rehabilitation provide an innovative line extension to conventional implant dentistry. MATERIAL AND METHODS: A wax-up was performed on plaster models that were scanned by 3D laser...
October 2017: Journal of Cranio-maxillo-facial Surgery
Hussain D Alsayed, Nasser M Alqahtani, John A Levon, Dean Morton
Telescopic crown attachments have been successfully used in completely and partially edentulous patients. This type of attachment provides retention, support, and stability with optimal hygiene for the removable dental prosthesis (RDP). With the emergence of CAD/CAM technology, telescopic crown attachments can be virtually designed and milled precisely to ensure a passive fit of the attachment parts and maximal functionality of the RDP. This article reviews both the clinical outcome and prosthodontic rehabilitation of telescopic crown attachments of an edentulous ectodermal dysplasia patient with solitary rigid conical telescopic crown attachments...
October 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Ljubisa Ristic, Dragana Dakovic, Srdjan Postic, Zoran Lazic, Miljana Bacevic, Dragana Vucevic
PURPOSE: The grey-bluish discoloration of gingiva (known as "amalgam tattoo") does not appear only in the presence of amalgam restorations. It may also be seen in cases of teeth restored with cast dowels and porcelain-fused-to-metal (PFM) restorations. The aim of this article was to determine the clinical characteristics of abutment teeth with gingival discoloration. MATERIALS AND METHODS: This research was conducted on 25 patients referred for cast dowel and PFM restorations...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Jasna Cotic, Jure Jamsek, Milan Kuhar, Natasa Ihan Hren, Andrej Kansky, Mutlu Özcan, Peter Jevnikar
BACKGROUND: Slovenia has a high burden of head and neck cancer. Patients are mostly treated with surgery followed by radiation therapy. Advanced surgical and prosthodontic techniques have expanded the rehabilitation options. The aim of the study was to review the outcome of implant-prosthetic treatment after radiation therapy. PATIENTS AND METHODS: Twenty irradiated head and neck cancer patients who received a removable implant-supported denture at the University Medical Centre Ljubljana were included in the study...
March 1, 2017: Radiology and Oncology
Weerapan Aunmeungtong, Thongnard Kumchai, Frank P Strietzel, Peter A Reichart, Pathawee Khongkhunthian
BACKGROUND: Dental implant-retained overdentures have been chosen as the treatment of choice for complete mandibular removable dentures. Dental implants, such as mini dental implants, and components for retaining overdentures, are commercially available. However, comparative clinical studies comparing mini dental implants and conventional dental implants using different attachment for implant-retained overdentures have not been well documented. PURPOSE: To compare the clinical outcomes of using two mini dental implants with Equator(®) attachments, four mini dental implants with Equator attachments, or two conventional dental implants with ball attachments, by means of a randomized clinical trial...
November 1, 2016: Clinical Implant Dentistry and related Research
Sunyoung Ma, J Neil Waddell, Momen A Atieh, Nabeel Hm Alsabeeha, Alan Gt Payne
PURPOSE: This study aimed to evaluate the 10-year prosthodontic outcomes with splinted and unsplinted designs for maxillary overdentures on three implants opposing mandibular two-implant overdentures. MATERIALS AND METHODS: Using two similar implant systems, 40 edentulous participants with existing mandibular two-implant overdentures were randomly allocated to two prosthodontic treatment groups (splinted design with bar units; unsplinted design with ball attachments)...
July 2016: International Journal of Prosthodontics
Charlotte Grenade, Marie-Claire De Pauw-Gillet, Patrick Gailly, Alain Vanheusden, Amélie Mainjot
OBJECTIVES: Polymer-infiltrated-ceramic-network (PICN) materials constitute an innovative class of CAD-CAM materials offering promising perspectives in prosthodontics, but no data are available in the literature regarding their biological properties. The objective of the present study was to evaluate the in vitro biocompatibility of PICNs with human gingival fibroblasts (HGFs) in comparison with materials typically used for implant prostheses and abutments. METHODS: HGF attachment, proliferation and spreading on discs made of PICN, grade V titanium (Ti), yttrium zirconia (Zi), lithium disilicate glass-ceramic (eM) and polytetrafluoroethylene (negative control), were evaluated using a specific insert-based culture system (IBS-R)...
September 2016: Dental Materials: Official Publication of the Academy of Dental Materials
Floriana Lauritano, Michele Runci, Gabriele Cervino, Luca Fiorillo, Ennio Bramanti, Marco Cicciù
BACKGROUND: The aim of this paper is to underline the prosthodontics components features of two different overdenture retention systems on dental implants. The use of titanium, dental implants for replacing missing teeth is today considered to be a predictable procedure giving the patients esthetic and function for long time. METHODS: Finite element analysis (FEA) and tests based on the Von Mises criterion have been applied in order to evaluate the stress distribution over two different prosthodontics retention systems...
December 2016: Minerva Stomatologica
Toshihito Takahashi, Tomoya Gonda, Akiko Tomita, Yoko Mizuno, Yoshinobu Maeda
PURPOSE: As maxillary implant overdentures are being increasingly used in clinical practice, prosthodontic complications related to these dentures are also reported more often. The purpose of this study was to examine the influence of palatal coverage and implant distribution on the shear strain of maxillary implant overdentures. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted in the anterior, premolar, and molar areas was fabricated. Two kinds of experimental overdentures, with and without palatal coverage, were also fabricated, and two strain gauges were attached at the midline of the labial and palatal sides...
May 2016: International Journal of Oral & Maxillofacial Implants
Ashlesha Subhash Marathe, Prasad Shankarrao Kshirsagar
Loss of mandibular continuity results in deviation of remaining mandibular segment toward the resected side primarily because of the loss of tissue involved in the surgical resection. The success in rehabilitating a patient with hemimandibulectomy depends upon the nature and extent of the surgical defect, treatment plan, type of prosthesis, and patient co-operation. The earlier the mandibular guidance therapy is initiated in the course of treatment; the more successful is the patient's definitive occlusal relationship...
April 2016: Journal of Indian Prosthodontic Society
Rania Livada, Jacob Shiloah, Timothy L Hottel
AIM: To illustrate the reversibility of "pathologic tooth migration" in several patients that were managed by periodontal therapy alone, along with a review of the relevant literature. BACKGROUND: Pathologic tooth migration (PTM) is a common phenomenon among patients seeking dental care. Different etiologic factors have been implicated in PTM: loss of periodontal support, occlusal interferences, posterior bite collapse, and various oral habits such as: lip biting, tongue thrusting, and playing wind instruments...
October 2015: Journal of the Tennessee Dental Association
X Liu, Y Zhang, Z Zhou, S Ma
AIMS: This retrospective study evaluated the clinical performance of combining a fiber-reinforced, composite-resin (FRC) bonded splint; bridge; fiber post; and/or resin veneer for the restoration of periodontally-involved anterior teeth. METHODS: Sixty-three patients with periodontally-involved anterior teeth each received one of the following splinting restorations: FRC-bonded splint-bridges (SB), a combination of an FRC-bonded splint and resin veneer (SV), or FRC-bonded splints (S)...
March 11, 2016: British Dental Journal
Sandy Cepa, Beatrice Koller, Benedikt Christopher Spies, Susanne Stampf, Ralf-Joachim Kohal
OBJECTIVE: To evaluate implant survival, peri-implant tissue conditions, prosthodontic maintenance requirements and patient satisfaction of two differently retained implant-supported mandibular overdentures (IOD) after the 3 years of observation. MATERIALS AND METHODS: Twenty-five patients with edentulous mandibles received two implants each. Twelve patients were randomly selected to receive ball attachments, whereas 13 patients received prefabricated coni. Implant survival, peri-implant parameters (modified Plaque Index, Bleeding on Probing, modified Gingival Index, probing depth and marginal bone loss) and patient satisfaction were assessed...
January 27, 2016: Clinical Oral Implants Research
Kostas Zygogiannis, Daniel Wismeijer, Irene Ha Aartman, Reham B Osman
PURPOSE: Different treatment protocols in terms of number, diameter, and suprastructure design have been proposed for immediately loaded implants that are used to support mandibular overdentures opposed by maxillary conventional dentures. The aim of this study was to investigate the influence of these protocols on survival rates as well as clinical and prosthodontic outcomes. MATERIALS AND METHODS: Several electronic databases were searched for all relevant articles published from 1966 to June 2014...
January 2016: International Journal of Oral & Maxillofacial Implants
Alan G T Payne, Andrew Tawse-Smith, Daniel Wismeijer, Rohana K De Silva, Sunyoung Ma
OBJECTIVE: To determine implant survival and prosthodontic maintenance of implant-assisted mandibular removable partial dentures in a multicentre prospective study up to 10 years. MATERIALS AND METHODS: Forty-eight participants with mandibular distal extension partial dentures were selected. A control group of 12 New Zealand participants had new conventional mandibular partial dentures made. Three test groups of 36 participants in New Zealand (n = 12), the Netherlands (n = 12) and Colombia (n = 12) had bilateral distal implants placed...
January 22, 2016: Clinical Oral Implants Research
Karnik Shah, Damian J Lee
In contemporary implant and prosthodontic practice, high levels of surgical and biologic success rates have been achieved. However, mechanical and technical complications continue to exist. Of these, one of the biggest challenges to the clinician is the conservative retrieval of fractured screw fragments from within the implants and/or abutments. While removal is desirable, the fragments cannot always be removed, and alternative solutions for the management of such clinical situations must be considered. This clinical report describes the replacement of 2 fractured, irretrievable, Locator abutment screws of a mandibular implant-retained overdenture with a cast dowel and laser welded Locator attachments...
April 2016: Journal of Prosthetic Dentistry
Ahmed Yaseen Alqutaibi
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Attachment systems for mandibular implant overdentures: a systematic review. Kim HY, Lee JY, Shin SW, Bryant SR.J Advanced Prosthodont 2012;4(4):197-203. REVIEWER: Ahmed Yaseen Alqutaibi, BDS, MDSc, PhD(c) PURPOSE/QUESTION: To address treatment outcomes depending on attachment systems for two-implant mandibular-supported overdentures in terms of (1) implant survival rate, (2) prosthetic maintenance and complications, and (3) patient satisfaction...
December 2015: Journal of Evidence-based Dental Practice
Blessy Susan Bangera, Satyabodh Shesharaj Guttal, Sudhindra S Kulkarni, Adarsh Kudva, Srinath Thakur
Surgical treatment of malignancies in the oral cavity (mandible, tongue, floor of the mouth, alveolus, buccal sulcus) often results in an unfavourable anatomic condition for prosthodontic rehabilitation. Hence, maxillofacial prosthetic rehabilitation becomes a mightier task when resection is accompanied by radiation therapy. In selected cases, implant therapy comes to rescue. The following report throws light on the case of prosthetic rehabilitation of a patient who underwent right marginal mandibulectomy and right partial glossectomy, with the aid of a single implant, semi precision attachment and magnet supported partial denture...
September 2015: Journal of Clinical and Diagnostic Research: JCDR
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