Clinical and Microbiological Outcomes of Dental Implants After 10-22 Years of Function
NCT ID: NCT06803576
Last Updated: 2025-02-04
Study Results
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Basic Information
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ENROLLING_BY_INVITATION
100 participants
OBSERVATIONAL
2025-01-01
2025-05-30
Brief Summary
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Parameters to be examined are bone loss, biologic and prosthetic complications, as well as Patient Reported Outcomes (PROMs) to analyze patient satisfaction with dental implant treatment
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Detailed Description
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Clinical relevance: The successful application of dental implants in replacing missing teeth has been proven since the late 1980's. Over the years a great number of changes in implant designs and implant companies have entered in the dental field of practice. One of the most important questions that have to be addressed is the long-term stability and success of dental implants. While some implant brands have shown reliable long-term stability of their implants, there is still a lack of long-term studies (over 10 years of functional loading) for many implant systems, as it is quite hard to follow-up on patients for such a long time. Therefore, long-term data on implant survival and success is particurarly useful, especially if it is based on private practice patient, thus reflecting the aspects of everyday practice of implantology
Materials and methods: A comprehensive search of patient records from the private practice of the primary investigator (A.B.) was conducted and patients that received dental implant placement from 2001 until 2013 will be asked to participate in the study. After signing the relevant consent forms, all patients that are willing to participate in the study will be examined clinically and radiographically. The following parameters will be examined:
1. Age, sex of patient
2. Relevant medical history
3. Smoking history
4. Compliance to recall appointments
5. Early implant losses
6. Years of prosthetic loading of implants
7. Implant characteristics (length, diameter, surface, cylindrical or root-shaped)
8. Type of prosthesis (single or multiple abutments, cemented or screw-retained)
9. Biological complications (mucositis, peri-implantitis)
10. Prosthetic complications (minor, moderate or severe)
11. History of periodontal disease and treatment prior or after implant placement
12. Prosthetic work performed by specialist or general practitioner
13. Maintenance performed by specialist or general practitioner
14. Relevant ridge augmentation procedures during or before implant placement
15. Clinical measurements (Pocket depth, Attachment loss, Bleeding on probing, presence of Plaque) on six site for every implant (MB, B, DB, ML, L, DL)
16. Samples of the peri-implant sulcular fluid will taken with paper points and measured with Elisa kits to calculate the presence of the following biomarkers: RANKL, OPG, Il-a and TNF-b
17. A radiograph will be taken with the parallel cone technique and compared to baseline xrays after implant placement to measure bone stability
18. A questionnaire will be also provided to all study participants to measure satisfaction following implant therapy Data analysis The main parameter to be examined will be bone loss around an implant over time, as that relates to the definitions of peri-implant mucositis and peri-implantitis. Secondary outcomes will also be examined as pertaining to clinical differences according to the variety of 3i implants that have been used. External vs. internal hex, root-shape vs cylindrical, osseotite vs full osseotite vs nanotite surfaces etc. An number of around 100 patients are expected to be examined for a total of 250 implants.
Conditions
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Study Design
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COHORT
RETROSPECTIVE
Study Groups
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Patients with a least 10 years of loaded implants
Patients from a private periodontal office who have functioning implants for at least 10 years (range 10-22 years)
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
* Systemic health or controlled medical conditions
* Periodontal health, either no periodontal disease, or previously treated periodontal disease under a supportive periodontal maintenance (SPT) program
* Smokers were included but encouraged to enter a smoking cessation program
* Patients with bruxism or parafunctional habits were included.
Exclusion Criteria
* Active uncontrolled periodontal disease
* Inability to present for the reevaluation appointment
18 Years
ALL
No
Sponsors
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Aristotle University Of Thessaloniki
OTHER
Responsible Party
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Ioannis Vouros
Professor
Principal Investigators
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Ioannis Vouros, DDS PHD
Role: PRINCIPAL_INVESTIGATOR
Aristotle University Of Thessaloniki
Locations
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School of Dentistry
Thessaloniki, , Greece
Countries
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References
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Amelie Bäumer1,2*, Shirin Toekan3, Daniel Saure4 and Gerd Körner2
Carra MC, Blanc-Sylvestre N, Courtet A, Bouchard P. Primordial and primary prevention of peri-implant diseases: A systematic review and meta-analysis. J Clin Periodontol. 2023 Jun;50 Suppl 26:77-112. doi: 10.1111/jcpe.13790. Epub 2023 Mar 6.
Chappuis V, Buser R, Bragger U, Bornstein MM, Salvi GE, Buser D. Long-term outcomes of dental implants with a titanium plasma-sprayed surface: a 20-year prospective case series study in partially edentulous patients. Clin Implant Dent Relat Res. 2013 Dec;15(6):780-90. doi: 10.1111/cid.12056. Epub 2013 Mar 18.
Frisch E, Vach K, Ratka-Krueger P. Impact of supportive implant therapy on peri-implant diseases: A retrospective 7-year study. J Clin Periodontol. 2020 Jan;47(1):101-109. doi: 10.1111/jcpe.13206. Epub 2019 Nov 6.
Other Identifiers
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458/16-4-2021
Identifier Type: -
Identifier Source: org_study_id
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