Active clinical trials for "Mouth, Edentulous"

This study aims to answer the question whether the use of a fluorescent layer over white zirconia abutments will improve the aesthetic outcomes of implant borne single-tooth restorations when compared to the use of non-layered white zirconia abutments. The study is designed as a parallel, single-centre and double blind clinical trial. Patients in need of a single tooth implant in the maxilla (from right second premolar to left second premolar, both included) with the presence of adjacent natural teeth will be randomly divided into two treatment groups: using white yttria-stabilized zirconia abutment (PYRCA; BioHorizons, Birmingham, EEUU) with immersion in fluorescent liquid (Zirkonzahn, South Tirol, Italy)(test group) or white yttria-stabilized zirconia abutment (PYRCA; BioHorizons, Birmingham, EEUU) without immersion in fluorescent liquid (control group). 1 and 12 months after crown placement, patients will be recalled and subjected to aesthetic, clinical, radiographic and patient centered outcomes.

To establish evidence based guidelines for denture adhesives (powder and cream), multicenter cross over randomized clinical trial will be carried out. The null hypotheses are that there are no difference on improvement from baseline to post application of two adhesives powder and cream, in terms of general satisfaction, oral related quality of life, masticatory function and oral conditions.

Prospective, single cohort, multi-center study evaluating the TREFOIL concept for the treatment of edentulous or patients with failing mandibular dentition over 5 years. 90 patients (15 per centre) will be included. The subject population is at least 18 years old, in need of an implant restored full prosthesis providing sufficient bone in the interforaminal where a fixed restoration on three implants is regarded as an appropriate treatment solution. The components are TREFOIL treatment concept (implants and framework).

In the clinical trial, the Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) fabricated removable partial dentures (RPD's) are evaluated on casts and clinically compared with a traditional fabricated RPD for 50 consecutive patients. During 5 years the patients are in a follow-up program in order to judge long-term stability, loss of retention, fractures, … of both groups of dentures.

The aim of this project was to evaluate the impact before and after (3, 6, 9, and 12 months) of oral rehabilitation with conventionalof the insertion of new complete dentures (CD) in the oral health-related quality of life (OHRQoL) in total edentulous patients compared to dentate individuals. This is a clinical trial study approved by the Research Ethics Committee (nº 31105714.7.0000.5626 ) which was conducted on 122 patients who attended the clinics of Federal Fluminense University, with the necessity of CD. The eligibility criteria were: healthy patients without disabilities; aged up to 50 years; complete upper and or lower jaw edentulism for a minimum 5 years; the presence of adequate healthy tissue to support the prosthesis; adequate cognitive ability and understanding to respond to the questions posed. It will be excluded patient with motor disabilities, cognitive impairment and people with special needs. After the installation of the CD a follow-up of one week, three, six, nine, twelve and eighteen months will be performed. The Oral Health Impact Profile (OHIP-Edent) instrument will be applied (in form of an interview) to evaluate the impact of CD on OHRQoL. The scores of the OHIP-Edent index will be calculated using the additive method, summing the numeric response codes for each item. Shapiro-Wilk test revealed nonparametric distribution of data. Chi-square, Mann-Whitney U, and Kruskal-Wallis tests were performed for comparing groups according to sociodemographic data. Kruskal-Wallis test was per- formed for comparing groups and treatments throughout time. A significance level of 5% was adopted, and all analyses were performed on Statistical Analysis System (SAS) version 9.3 software. The responsiveness was assessed by analyzing the change of the scores on the scales and subscales. The changes was calculated by subtracting the post-treatment scores from the before-treatment scores. Positive change scores will indicate an improvement in OHRQoL, while negative scores will indicate deterioration.

Objectives to evaluate the oral health-related quality of life and patient satisfaction in completely edentulous patients, when restored by maxillary and mandibular fixed (screw-retained) or removable telescopic retained implant supported prosthesis. 19 patients were randomized to receive either a fixed or a removable maxillary and mandibular full arch implant prosthesis. They were then asked to answer the OHIP-14 and a patient satisfaction questionnaire at 2 weeks, 3, 6 and 12 months post-prosthetic insertion.

The investigators aim to evaluate the biological and mechanical short- and long-term outcome of IL in partially or completely edentulous patients. Moreover, the investigators aim to detect potential influencing risk factors predicting undesirable prosthetic outcome.

The objective of this explanatory mixed methods study is to compare a novel attachment system (Novaloc) to a traditional alternative (Locator) for single implants in the mandible of edentate elders. The investigators will carry out a randomized cross-over clinical trial comparing Novaloc attachments to Locators for single-implant mandibular overdentures in edentate elders. Participants will be followed for three months with each attachment type; patient-based, clinical and economic outcomes will be gathered. A sample of 26 participants is estimated to be required to detect clinically relevant differences in terms of the primary outcome (patient ratings of general satisfaction). Participants will choose which attachment they wish to keep, then be interviewed about their experiences and preferences with a single implant prosthesis and with the 2 attachments. Data from the quantitative and qualitative assessments will be integrated through a mixed-methods explanatory strategy. A last quantitative assessment will take place after 12 months with preferred attachment; this latter assessment will enable the observation of attachments' long-term wear and maintenance events.

The objective of this study is to compare two surgical procedure to place implant in severely resorbed posterioir part of the maxilla.

This study aims to compare mandibular overdentures retained either by mini or standard size implants as a treatment for edentulous adults, in terms of patient-reported satisfaction and oral health-related quality of life. We will also evaluate post surgical discomfort, the success rate of prostheses and implants in the long term, denture quality and costs.