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Peri-implant Marginal Bone LossNCT04385355

Influence of the Design of the Transmucosal Abutment on the Periimplant Bone Level

A study testing Conventional transmucosal abutment design and Narrow transmucosal abutment design in people with Peri-implant Marginal Bone Loss and Peri-implant Bone Level, run by University of Santiago de Compostela at 1 site in Spain.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The objective of this study is to evaluate the radiographic changes on the marginal peri-implant bone level on bone level implants with a narrower transmucosal abutment, in comparison to the conventional abutment, both of 3mm height Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Conventional transmucosal abutment design and Narrow transmucosal abutment design
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteSpain
Study dates
1 Oct 2024to 1 Nov 2024
Phase
Interventional
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Absence of systemic and periodontal pathology, over 18 years of age, with a plaque index below 25%.
  • Absence of at least one tooth, with natural adjacent teeth, allowing a prosthetic rehabilitation with an osseointegrated implant and a prosthetic unit.
  • Adequate bone quality available, allowing placement of MOZO GRAU® implants InHex STD QUATTRO with diameters of 3.75 mm or 4.25 mm and lengths of 8, 10 and 11.5 mm.
  • Natural teeth or implants with fixed restoration as antagonists.

Who cannot join

  • Systemic factors:
  • Continuous administration of systemic medication that can interfere with the bone metabolism or medical conditions requiring prolonged use of steroids and / or medications that can interfere with bone metabolism.
  • History of leukocyte dysfunction and deficiency, immunodeficiency syndromes, kidney failure or bone metabolic disorders, such as osteoporosis.
  • Physical disability that may interfere with proper oral hygiene.
  • Use of any investigational medication or device within the previous 30 days to implant surgery in the study.
  • Alcoholism or drug addiction
Show all 15Show fewer
  • Smoker of more than 10 cigarettes per day.
  • Conditions or circumstances that could prevent compliance with participation in study or interfere with the analysis of results, such as a history of breach or unreliability.
  • Local factors:
  • History of local radiotherapy.
  • Bruxism.
  • Diseases that affect the oral mucosa, such as oral lichen planus.
  • Untreated periodontitis.
  • Persistent intraoral infection.
  • Post-extraction alveoli not cured (less than 6 weeks after extraction).

Trial locations and contacts

1 site in 1 country.

Spain1 site, 1 recruiting
  • University of Santiago de Compostela

    Santiago de Compostela, La Coruña, 15782

    Lucia Maceiras, +0034676780483, luciamaceiraspombo@outlook.com

    Recruiting

Other trials in Spain

About this study

Official title: Influence of the Design of the Transmucosal Abutment on the Marginal Periimplant Bone Loss. Randomized Clinical Trial

The objective of this study is to evaluate the radiographic changes on the marginal peri-implant bone level on bone level implants with a narrower transmucosal abutment, in comparison to the conventional abutment, both of 3mm height

Read the detailed description

Patients will receive from one to eight bone-level implants according to their rehabilitation necessity and transmucosal abutments will be connected the day of the surgery. The control group will receive conventional transmucosal abutments while the test group will receive TCP abutments, with a narrower design.

Results will be evaluated initially 6 and 12 months after the connection of the definitive prostheses, and finally 3 years later.

Being tested
Conventional transmucosal abutment design, Narrow transmucosal abutment design
Keywords
periimplant bone loss, abutment design, transmucosal abutment

What participants receive

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

  • Conventional transmucosal abutment designDevice

    The macroscopic design of the intermediate transmucosal abutment will be evaluated on terms of the marginal peri-implant bone levels using two identical devices, if only being the test device narrower than the control one

  • Narrow transmucosal abutment designDevice

    The macroscopic design of the intermediate transmucosal abutment will be evaluated on terms of the marginal peri-implant bone levels using two identical devices, if only being the test device narrower than the control one

Study groups in NCT04385355
Study groupRoleWhat they receive
Control GroupOtherControl group will receive an intermediate transmucosal abutment with conventional diameter and 3mm height, once the implants are placed.
Receives: Device: Conventional transmucosal abutment design
Test GroupExperimentalTest group will receive an intermediate transmucosal abutment with a TCP design, narrower than the conventional one, of 3mm height, once the implants are placed
Receives: Device: Narrow transmucosal abutment design

What is being measured

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

  1. Radiographic marginal periimplant bone level changes

    Measured as the distance from the bone crest to the first implant-to-bone contact. This will be assessed on parallelized periapical radiographies

    Measured: from baseline (connection of the definitive abutment) to 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

Secondary outcomes (6)
  1. Probing pocket depth

    measured with a CP12 probe as the distance from the soft tissue margin to the bottom of the peri-implant pocket

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

  2. Papilla refill

    Evaluated according to the Jemt 1997 index

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

  3. Bleeding on probing

    Evaluated according to the Mombelli 1987 index, presence of bleeding after probing

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

  4. Plaque index

    Evaluated according to the Mombelli 1987 index, presence of plaque

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

  5. Patient Reported Outcomes Measurements

    Using a visual analoge scale from 1 to 10 to evaluate patient's satisfaction parameters related to the aesthetics, masticatory ability, confort, general satisfaction and phonetics

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

  6. Adverse effects frequency

    Presence of adverse effects during the follow-up, such as fracture of the implant or the prosthetic unit or presence of periimplantitis or mucositis

    Measured: 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later

Timeline

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

  1. First posted12 May 2020
  2. Study start1 Oct 2024 (estimated)
  3. Primary completion31 Oct 2024 (estimated)
  4. Study completion1 Nov 2024 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
For each participant on the test group will be another participant on the control group
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
36 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04385355
Sponsor's protocol ID
ECRMGTCP2020
Status last verified
Sep 2021
First submitted
6 May 2020
Last updated
29 Sep 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Alves CC, Munoz F, Cantalapiedra A, Ramos I, Neves M, Blanco J. Marginal bone and soft tissue behavior following platform switching abutment connection/disconnection--a dog model study. Clin Oral Implants Res. 2015 Sep;26(9):983-91. doi: 10.1111/clr.12385. Epub 2014 Apr 16.

    PubMed 24735458
  • Berglundh T, Lindhe J. Dimension of the periimplant mucosa. Biological width revisited. J Clin Periodontol. 1996 Oct;23(10):971-3. doi: 10.1111/j.1600-051x.1996.tb00520.x.

    PubMed 8915028
  • Blanco J, Pico A, Caneiro L, Novoa L, Batalla P, Martin-Lancharro P. Effect of abutment height on interproximal implant bone level in the early healing: A randomized clinical trial. Clin Oral Implants Res. 2018 Jan;29(1):108-117. doi: 10.1111/clr.13108. Epub 2017 Dec 8.

    PubMed 29222809
  • Ericsson I, Persson LG, Berglundh T, Marinello CP, Lindhe J, Klinge B. Different types of inflammatory reactions in peri-implant soft tissues. J Clin Periodontol. 1995 Mar;22(3):255-61. doi: 10.1111/j.1600-051x.1995.tb00143.x.

    PubMed 7790533
  • Koutouzis T, Adeinat B, Ali A. The influence of abutment macro-design on clinical and radiographic peri-implant tissue changes for guided, placed, and restored implants: A 1-year randomized controlled trial. Clin Oral Implants Res. 2019 Sep;30(9):882-891. doi: 10.1111/clr.13493. Epub 2019 Jun 24.

    PubMed 31180160
  • Novoa L, Batalla P, Caneiro L, Pico A, Linares A, Blanco J. Influence of Abutment Height on Maintenance of Peri-implant Crestal Bone at Bone-Level Implants: A 3-Year Follow-up Study. Int J Periodontics Restorative Dent. 2017 Sep/Oct;37(5):721-727. doi: 10.11607/prd.2762.

    PubMed 28817138
  • Souza AB, Alshihri A, Kammerer PW, Araujo MG, Gallucci GO. Histological and micro-CT analysis of peri-implant soft and hard tissue healing on implants with different healing abutments configurations. Clin Oral Implants Res. 2018 Oct;29(10):1007-1015. doi: 10.1111/clr.13367. Epub 2018 Sep 23.

    PubMed 30246409

Questions about this trial

What is this clinical trial studying?

A study testing Conventional transmucosal abutment design and Narrow transmucosal abutment design in people with Peri-implant Marginal Bone Loss and Peri-implant Bone Level, run by University of Santiago de Compostela at 1 site in Spain.

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 4 inclusion and 15 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: status not confirmed, as of the sponsor's last update on 29 Sep 2021. 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 Spain. 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?

Results are not available in the source record.

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

Contact Lucia Maceiras (+0034676780483, luciamaceiraspombo@outlook.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Radiographic marginal periimplant bone level changes (time frame: from baseline (connection of the definitive abutment) to 6 and 12 months after the definitive prostheses will be connected, and finally 3 years later). 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 NCT04385355, which also lists 7 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 29 Sep 2021.

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