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Dental Implant FailedimplantsNCT04236622

Clinical and Radiographic Evaluation of Dental Implants Installed Between 2004 and 2010

An observational study of Dental Implant Failed, run by Universidade Metropolitana de Santos at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The convenience sample to be included in the present study will consist of all individuals who had implants installed at the Dentistry Clinic of the University Santo Amaro, between the years 2004 and 2010. Read more about this study

Who is it for?
Ages 30 to 70 years
Conditions the study is for
Dental Implant Failed
What is being tested?
Periodontal clinical exam
How many people
182 participants
Where
1 siteBrazil
Study dates
1 Jan 2016to 30 Oct 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 to 70 years
  • All sexes
  • Adult, Older adult

Study population: Individuals of both genders, between 30 and 70 years of age, with implants placed from 2004 to 2010 will be included in the study.

Who may be able to join

  • After evaluation, individuals may be allocated into groups according to the characteristics observed, for example: carriers of single implants, patients with overdentures, individuals with systemic diseases, smokers.

Who cannot join

  • Individuals who need to use or suspend systemic medication to perform the proposed clinical exams will be excluded from the study.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • University of Santo Amaro - UNISA/SP

    São Paulo, São Paulo

Other trials in Brazil

About this study

The convenience sample to be included in the present study will consist of all individuals who had implants installed at the Dentistry Clinic of the University Santo Amaro, between the years 2004 and 2010. The following criteria will be evaluated: age; sex; presence of systemic disease; area in which the implant was installed; implant diameter and height; type of prosthesis installed; presence of bone resorption and annual maintenance.

Read the detailed description

The control of biofilm around implants is fundamental to the success of implant therapy, and it is the duty of the dentist to inform, guide and maintain patients in order to avoid pathological processes that may lead to the loss of the implanted component. The objective of the present study will be to evaluate by clinical and radiographic parameters the condition of oral implants placed for more than five years. The convenience sample to be included in this study will be composed of all individuals who had implants installed at the Dental Clinic of the University Santo Amaro, between 2004 and 2010. The following criteria will be evaluated: age; sex; presence of systemic disease; area in which the implant was installed; implant diameter and height; type of prosthesis installed; presence of bone resorption and annual maintenance. The success and survival rate of implants through the following parameters: pain; mobility; card index (IP); bleeding rate (IS); probing depth (PS); probing bleeding (SS) that will be measured on four faces by implant: mesial, buccal, distal and lingual / palatine. For the evaluation of bone loss, a conventional periapical radiograph will be performed at the moment of patient recall. Radiographs will be scanned and analyzed using Image Tool software to verify and determine the resulting linear distance between the implant shoulder and the bone crest. Factors such as smoking, annual maintenance appointments will be related to the presence of peri-implantitis.

Being tested
Periodontal clinical exam
Keywords
dental implants, periodontal index, peri-implantitis
Medical subject headings
Peri-Implantitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Periodontal clinical examOther

    Also called Radiographic exam

    The individuals will be submitted to a complete periodontal examination, with measurements obtained at four points per tooth and dental implant (mesial, distal, buccal and lingual / palatal), in all teeth / implants present, except for the third molars, the parameters evaluated will be: Probing Depth, Clinical Insertion Level, Plaque Index, Teeth Bleeding Index. The implants will be evaluated according to the parameters: presence of suppuration, probing depth, bleeding to probing and presence of biofilm around the implants. To perform the clinical examinations, the following instruments will be required: Willians millimeter probe, exploratory probe and clinical mirror.

    In all participants, complete periapical radiographic examinations with 14 radiographs will be performed to verify the bone cortical height level and to assist in the periodontal diagnosis.

Study groups in NCT04236622
Study groupRoleWhat they receive
HealthFor each patient we evaluated the Probing Depth (PD), measured in mm, and the following dichotomous variables: plaque index (absent or present), gingival index (absent or present), occurrence of annual maintenance (absent or present), tooth position (anterior or posterior) and the patient's smoking habit (absent or present).
Receives: Other: Periodontal clinical exam
Peri-implantitisFor each patient we evaluated the Probing Depth (PD), measured in mm, and the following dichotomous variables: plaque index (absent or present), gingival index (absent or present), occurrence of annual maintenance (absent or present), tooth position (anterior or posterior) and the patient's smoking habit (absent or present).
Receives: Other: Periodontal clinical exam

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Probing depth

    lower probing depth in patients who underwent annual maintenance

    Measured: 10 years

Secondary outcomes (1)
  1. Plaque control

    lower plaque index in patients who underwent annual maintenance

    Measured: 10 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jan 2020
  2. Study start1 Jan 2016
  3. Primary completion10 Feb 2016
  4. Study completion30 Oct 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
182 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04236622
Sponsor's protocol ID
SantosMU6
Acronym
implants
Status last verified
Jan 2020
First submitted
17 Jan 2020
Last updated
27 Jan 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated device
No
Individual data sharing
No: The IPD will not be shared with other researchers. The study participants allowed the use of data only for this study and for this researcher

Publications

  • van Velzen FJ, Ofec R, Schulten EA, Ten Bruggenkate CM. 10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients. Clin Oral Implants Res. 2015 Oct;26(10):1121-8. doi: 10.1111/clr.12499. Epub 2014 Nov 5.

    PubMed 25370914
  • Bergenblock S, Andersson B, Furst B, Jemt T. Long-term follow-up of CeraOne single-implant restorations: an 18-year follow-up study based on a prospective patient cohort. Clin Implant Dent Relat Res. 2012 Aug;14(4):471-9. doi: 10.1111/j.1708-8208.2010.00290.x. Epub 2010 Jun 25.

    PubMed 20586784
  • Albrektsson T, Dahlin C, Jemt T, Sennerby L, Turri A, Wennerberg A. Is marginal bone loss around oral implants the result of a provoked foreign body reaction? Clin Implant Dent Relat Res. 2014 Apr;16(2):155-65. doi: 10.1111/cid.12142. Epub 2013 Sep 4.

    PubMed 24004092

Questions about this trial

What is this clinical trial studying?

An observational study of Dental Implant Failed, run by Universidade Metropolitana de Santos at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Probing depth (time frame: 10 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04236622, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jan 2020.

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