Multicenter Retrospective Analysis of Implant Overdentures Delivered with Different Design and Attachment Systems: Results Between One and 17 Years of Follow-Up (original) (raw)
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Dentistry Journal
Purpose: To evaluate implant and prosthetic survival rates, complications, patient satisfaction, and biological outcomes of patients rehabilitated with a ball attachment system for implant retained- and supported-overdentures (IOV), which was in function for 3 to 5 years. Methods: This retrospective study evaluated data collected from patients treated between April 2001 and May 2018 with IOV on splinted and non-splinted implants and a ball attachment system. Patients were followed for 36 to 206 months (mean follow-up was 128.1 ± 51.9 months). Data were collected at the 3- and 5-year follow-up examination. Outcome measures were implant and prosthetic survival rates, technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), and periodontal parameters (bleeding on probing and plaque index). Results: A total of 46 patients (16 males and 30 females) with 124 implants were included in this study. Twenty-five implant-retained overdentures were delivered on 53 un...
Applied Sciences, 2021
The purpose of this multicenter randomized controlled trial was to compare the clinical, radiographic, and patient-centered outcomes of early loaded mandibular overdentures deliberately placed on two or three implants. The outcomes were: implant and prosthesis success and survival rates; biological and technical complications; marginal bone loss; patient satisfaction; and periodontal parameters. The results showed no differences between the groups in any of the outcomes analyzed. With the limitations of the present study, and looking at long-term follow-up, the gold standard of prosthetic rehabilitations with attachments, in agreement with the scientific community, should prefer two non-splinted implants.
Maxillary overdentures retained by splinted and unsplinted implants: a retrospective study
The International journal of oral & maxillofacial implants
The purpose of this retrospective study was to evaluate the clinical performance of and patients' satisfaction with maxillary overdentures retained by splinted and unsplinted implants. Patients who had been treated with maxillary implant-retained overdentures because of functional problems with conventional complete dentures were identified and invited to participate in the study. A total of 16 patients fulfilled the enrollment criteria and agreed to participate. Eleven patients were treated with bar-retained overdentures with 3 to 6 clips (mean follow-up 32 months), and 5 patients wore overdentures retained by 2 to 6 ball attachments (mean follow-up 54 months). All subjects were satisfied with their prostheses, and most subjects experienced improvement in their oral function after treatment with implant-retained overdentures. At the time of clinical examination, 92% (n = 77) of the 84 implants placed were functioning satisfactorily. The cumulative survival rate for the implants...
Medicina Oral, 2011
The purpose of this clinical study was to evaluate the complications associated with the different attachments used in implant-supported overdentures, including prosthetic problems and implant failures. A comparison of ball, bar and Locator (Zest Anchors, Inc, homepage, Escondido, CA, USA) attachments, in completely edentulous patients with two, three or four implants, was conducted. A total of 36 edentulous patients (20 female, 16 male) with a mean age of 66.3 years, were enrolled in the study. The patients were treated with 95 implants, for the prosthetic restoration of the maxilla or the mandible. The mean follow-up time was 41.17 months. Prosthetic complications including, fractured overdentures, replacements of O-ring attachment and retention clips, implant failures, hygiene problems, mucosal enlargements, attachment fractures, retention loss and dislodgement of the attachments were recorded and evaluated. The recall visits at 3, 6, 12 months and, annually thereafter. Fourteen ...
Egyptian Dental Journal
Prosthetic rehabilitation of totally edentulous patients today is a common procedure that clinicians approach in their daily practice. The use of dental implants for replacing missing teeth proved to be a safe technique and the implant-prosthetic materials available give the possibility of having long-term clinical success 1,2. Many studies have recommended the mandibular implant overdenture as a reliable treatment modality for edentulous patients and, in particular, those who have persistent problems using conventional
Clinical Oral Implants Research, 2013
Aim: To evaluate the clinical performance as well as patients' and clinicians' satisfaction on two different prosthodontic retention systems for implant-overdentures in the mandible. Methods: In this retrospective study, patients provided with four intraforaminal implants with at least 12 months of follow-up since overdenture delivery were evaluated. A total of 39 patients were treated either with Locator ® attachment or with cad-cam milled bar. Clinical parameters such as Peri-implant Probing Depth (PPD), Plaque Index (PI), and Bleeding on Probing (BOP) were evaluated. Patients' and clinicians' perceptions regarding the outcome were assessed on visual analog scales (VAS).
Treatment outcomes with implant-supported overdentures: Clinical considerations
The Journal of Prosthetic Dentistry, 1998
Adapt ation to wearing complete dentures is a complex process and must be considered from both somatic and psychologic standpoints. Incorporating a foreign body in the oral cavity may be a difficult task. Documentation on success and failure with complete dentures is sparse and not reliable, because the correlation between a favorable shape of the residual ridge, the technical accuracy of the dentures, and the ease of adaptation to wearing dentures is low. 1,2 Motor skills tend to decrease with increasing age. The difficulties of wearing dentures has been attributed to deficiencies of the denture-bearing tissues, reduced salivary flow, vulnerable tissue, and severe ridge resorption. Patients may also have an aversion against a foreign body in the oral cavity. For many patients, the wearing of complete dentures also means to be old and socially handicapped. Problems with adaptation to complete dentures are observed with a higher incidence for mandibular dentures than for maxillary dentures. Historically, surgeons focused on improving the structure of the residual mandibular ridge by various preprosthetic surgical techniques and less frequently the maxillary ridge. These techniques appear to be more invasive than the surgery for osseointegrated implants, and there is no scientific evidence of its success and usefulness. The use of implants to substitute for missing teeth was systematically developed by Brånemark et al. 3,4 Since the 1980s, several studies have demonstrated the reliability of this treatment modality. 5-7 The clinical concept of this treatment consisted of inserting five to six implants into the edentulous mandible to provide support and retention for a fixed prostheses, which was retrievable by the dentist only. While the Brånemark groups focused on fixed prostheses, Schroeder et al 8-10 developed the ITI implant system to deal with the problems of unilateral distal extension situations. He suggested that overdentures supported by four implants should be used in situations of
Egyptian Dental Journal, 2018
Statement of problem: Patient perspectives on the treatment options for maxillary edentulism, which debate include fixed or removable implant-supported prostheses, may help eliminate current uncertainty as to the best choice of treatment plan. Purpose: This study intended to evaluate the impact of implant number placed in fully edentulous maxilla on the clinical as well as the radiographic outcomes of implant-supported maxillary overdentures with locator attachments over two years of investigation. Materials & methods: For this clinical research study held between May 2015 and May 2017, twenty-four fully edentulous patients received new maxillary and mandibular complete dentures prior to implant placement. After common denture delivery modifications, every patient was instructed to use the denture in a conservative manner for three months, with a follow-up appointment every two week. During this period, arrangements for implant placement were processed. Following the three months of adaptation; patients were randomly categorized into two main groups: In the first group (of twelve patients), every patient received six implants in the maxilla (three in each quadrant) utilizing a prefabricated computer-aided surgical stent. In the second group (of twelve patients), every patient received four implants in the maxilla (two in each quadrant) utilizing a prefabricated computer-aided surgical stent. After six months of implants placement (to ensure complete implants osseointegration), patients of the two groups had completed the procedures of fabricating Implantsupported maxillary overdenture with locator attachment. the clinical & the radiographic outcomes of the Implants supporting the overdentures had been calibrated at time of implants insertion, 6 months, 12 months, 18 months and 24 months respectively. Noting that: Forcemeter measurements started at the time of overdenture insertion Not at the time of implants insertion (i.e. only four readings were obtained).
Implant overdenture A review to highlight the concept
HSOA Journal of Dentistry: Oral Health & Cosmesis, 2020
Implant overdenture treatments cover one of the possible treatment solutions to the patients have some teeth/ roots retained, in patients completely edentulous or wearing conventional overdentures. Presenting this treatment plan using osseointegrated dental implants which will provide stability and retention for the prosthesis, prevent further bone resorption, and improvement of the aesthetic and functional requirement of the patients which is consequently affecting patients psychology and improve quality of life. Clinical and research studies of this topic always explore that, overdenture treatment is an alternative to conventional complete denture in terms of retention and stability and an alternative to full arch fix prosthesis in terms of finance. Although there is remains a lack of consistency in techniques, prosthetics design, and attachment systems, this aspect has been proven less important to successful outcomes than we thought. In this review, we investigate implant overdenture in terms of advantage, disadvantage, indication and contraindication, attachment selection, and overdenture maintenance.