View clinical trials related to Anodontia.
Filter by:The purpose of this clinical trial is to evaluate and compare bridges to replace one or two missing teeth in the mouth. The bridges will be made of two variants of ceramic material. We will evaluate the bridges for up to five years regarding technical and biological complications.
This study aims to evaluate the changes in the stability of implants of the same macro-design placed with particle grafting in the fresh extraction socket, without grafting and placed in healed implant sites.
This randomized controlled trial is to clinically assess and compare impression quality of polyvinylsiloxane impression material using one step (experimental) and two step (control) impression techniques and its effect on marginal fit of prosthesis and proximal contact of prosthesis.
- Background Adaptation of a dental implant and its restoration to the existing anatomy in the region of a missing tooth is presumed to be a reliable procedure. During the follow-up it appears that peri-implant bone level is stable, peri-implant soft tissues are healthy and patients are satisfied with the result. However, the number of 10-years studies on implants in the posterior region of maxilla and mandible is limited and much more studies with longer follow-up periods are needed to confirm the positive outcomes. - Main research question The primary objective of the study is marginal bone level changes by radiological assessments at 10-years follow-up. Secondary objectives are implant and restoration survival, condition of peri- implant mucosa and patients' satisfaction. - Design The study design is an observational study of a group of patients which were treated 10 years ago with a dental implant and an implant-supported restoration because of a missing tooth in the posterior region. Outcomes: primary outcome is the change in marginal peri-implant bone level 10 years after placing the definitive restoration. Secondary outcome measures will be implant and restoration survival, peri-implant mucosa health and patients' satisfaction using a questionnaire. - Expected results Stable peri-implant bone levels, stable peri-implant soft tissue levels, high implant and restoration survival rate and satisfied patients.
Dental implant is a dental treatment that allow oral rehabilitation for partial and fully edentulous patients. Osteointegration is the factor that control success s or failure of dental implant that can be improved by addition of different adjunctive biological materials. Platelets Rich fibrin plays a significant role in tissue regeneration and wound healing. Melatonin is biological hormone that secreted from pineal gland and played an important role in human growth.
Two hundred individuals will be formed according to the study and control groups: Group-1: coronavirus 2 (Covid-19) (+) patients (n=100) and Group-2: Healthy individuals (in which the volunteers will be included due to group-1) (n=100). Oral examinations including DMFT scores, salivary flow rate, visible gingival index scores and radiographs (OPG) will be performed on both groups on the 1st appointment. Oral swap samples will be collected with sterile swap brushes (Six sample for each person) on the 1st, 7th and 30th days to evaluate the salivary immunoglobulins (Immunoglobulin A (IgA), Immunoglobulin G (IgG), Immunoglobulin M (IgM)) and cytokine (IL-1, IL-6, IL-10) levels. Blood samples will be collected to validate the oral swap test results.
Until now, limited research has observed the stability of photo functionalized sandblasted acid-etched (SLA) titanium implants. The study includes a sample size of sixty otherwise healthy patients with implant replacement, comparing nonirradiated, irradiated UVA and UVC titanium implants. It was an interventional study with a sample size divided into three groups using simple randomization. Patients with nonirradiated dental implants make the control group A with UVA and UVC dental implants forming groups B and C, respectively. Before functional loading, implant stability was measured on days zero and eight weeks. SPSS 26.0 is used for data analysis. The data for implant stability quotient (ISQ) levels and osseointegration speed index (OSI) were presented as mean ± SD for each group. The effect of UVA and UVC on ISQ2 compared with the baseline ISQ was done by applying multiple simple regression analysis models, whereas the distinction between UVA and UVC was made through a t-test. p ≤ 0.05 was kept statistically significant. The implants irradiated with UVA significantly affected ISQ levels compared to other groups.
Effect of Topical Application of Hyaluronic Acid on Stability of Immediate Loading Dental Implant in Posterior Maxilla
- Background Replacement of two missing adjacent teeth is considered a difficult treatment in implant dentistry and even more challenging if located in the anterior region due to aesthetic demands. As well peri-implant bone contour as soft tissue volume is compromised at start of the treatment and difficult to restore. The question is if this reconstruction will be stable in the longterm. Full-scale evaluation of adjacent implant placement with crown rehabilitation in the aesthetic region with a follow-up of at least 10 years is underreported in this field of implant dentistry. - Main research question The aim of this observational study was to analyze peri-implant bone changes, mucosa levels, aesthetic ratings and patient-reported satisfaction with the maxillary aesthetic region following implant placement with crown restoration after a 10-years follow-up period. - Design (including population, confounders/outcomes) The study design is an observational study of a group of patients with two missing adjacent teeth in the maxillary aesthetic region which was treated 10 years ago with dental implant placement and an implant-supported restorations. Outcomes: primary outcome is the change in marginal peri-implant bone level 10 years after placing the definitive restoration. Secondary outcome measures will be implant and restoration survival and changes in interproximal peri-implant mucosa, midfacial peri-implant mucosal level , aesthetic outcome assessed by means of an objective index and patients' satisfaction using a questionnaire. • Expected results Stable peri-implant bone levels, stable peri-implant soft tissue levels, high implant and restoration survival rate and satisfied patients.
Compare two different types of abutments (molded abutments and computer-designed 3D printed abutments) in terms of the amount of bone loss, and depth of periodontal pockets around the implant during different periods.