Missing Teeth Clinical Trial
Official title:
Dental Implant Treatment for Two Adjacent Teeth in the Maxillary Aesthetic Region: an Evaluation After 10 Years
- 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.
The study design is an observational study of a group of 25 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. - Inclusion criteria: - Patients, having two missing teeth in the maxillary aesthetic region, referred to the department of Oral and Maxillofacial Surgery 10 years ago and treated with dental implant placement and implant-supported restorations. At the time of treatment: - The patient was 18 years or older; - The failing teeth were an incisor (central or lateral), cuspid or first bicuspid in the maxilla; the adjacent teeth are natural teeth; - Sufficient healthy and vital bone to insert a dental implant with a minimum length of 10 mm and at least 3.5 mm in diameter with initial stability > 45 Ncm - The implant site was free from infection; - Adequate oral hygiene (modified plaque index and modified sulcus bleeding index ≤ 1); - Sufficient mesio-distal, bucco-lingual, and interocclusal space for placement of an anatomic restoration; - The patient was capable of understanding and giving informed consent. - Exclusion criteria at the time of treatment: - Medical and general contraindications for the surgical procedures; - Presence of an active and uncontrolled periodontal disease; - Bruxism; - Smoking - A history of local radiotherapy to the head and neck region. All patients were 10 years ago referred to the Department of Oral and Maxillofacial Surgery (University of Groningen, University Medical Hospital) because of having two failing teeth in the maxillary aesthetic region and were treated with dental implant placement and implant-supported restorations. Patients will have a regular routine control visit (as part of regular follow-up of these patients). All data to be collected are part of the routine visit and collected regularly at earlier routine visits, except for the questionnaire. The questionnaire contains a limited number of questions with respect to satisfaction with the aesthetic result. If patients are willing to participate (to use their research data and to fill in the questionnaire), they will be asked to give informed consent by signing a form. After signing, they will be included in the 10-years evaluation as participant. The forms will be collected in the CRF and in the medical record it will be noted that patient has signed the informed consent. Data will be collected during the routine control visit; patients will not have an extra visit for data collection. ;
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