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Periodontitis ComplexNCT04227964

Periodontal Regeneration Versus Tooth Extraction and Replacement Denture in Teeth With Periodontal Hopeless Prognosis

A study testing Enamel matrix derivative, bone replacement graft, barrier membrane and Tooth extraction and replacement in people with Periodontitis Complex, run by The European Research Group on Periodontology (ERGOPerio) at 1 site in Hong Kong.

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

Periodontal regeneration can change tooth prognosis and represents an alternative to extraction in teeth compromised by severe intrabony defects. The aim of this study is to compare periodontal regeneration (PR) with tooth extraction and replacement (TER) in a population with attachment loss to or beyond the apex of… Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Periodontitis Complex
What is being tested?
Enamel matrix derivative, bone replacement graft, barrier membrane and Tooth extraction and replacement
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteHong Kong
Study dates
1 Jun 1998to 31 Dec 2014
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 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Good general health
  • Non-smokers or smokers with less than 20/day
  • Good oral hygiene (FMPS<25%)
  • Good control of periodontitis (FMBS<25%)
  • Good compliance with treatment
  • Presence of generalised stage III or IV periodontitis
Show all 11Show fewer
  • Radiographic bone loss to the apex or beyond the apex of the root at at least one interdental aspect
  • Presence of severe clinical attachment level loss (>10 mm)
  • Presence of clearly identifiable crest of bone in adjacent teeth
  • Lack of function due to hyper mobility
  • Vital or non-vital teeth

Who cannot join

  • Medical contraindication to elective surgery
  • Poor oral hygiene
  • Incomplete control of periodontitis in the dentition
  • Inadequate compliance
  • Inability to provide informed consent

Trial locations and contacts

1 site in 1 country.

Hong Kong1 site
  • Faculty of Dentistry, The University of Hong Kong

    Hong Kong

Other trials in Hong Kong

About this study

Official title: Periodontal Regeneration vs Extraction and Replacement of Teeth Severely Compromised by Attachment Loss to the Apex: a 10-year RCT

Periodontal regeneration can change tooth prognosis and represents an alternative to extraction in teeth compromised by severe intrabony defects. The aim of this study is to compare periodontal regeneration (PR) with tooth extraction and replacement (TER) in a population with attachment loss to or beyond the apex of the root in terms of professional, patient reported and economic outcomes.

Read the detailed description

This was a single center 10-year randomized controlled clinical trial. 50 stage III or IV periodontitis subjects with a severely compromised tooth with attachment loss to or beyond the apex were randomized to PR or TER with either an implant or a tooth supported fixed partial denture. Subjects were kept on a strict periodontal supportive care regimen every 3 months and examined yearly. Survival, complication free survival, recurrence analysis, oral health related quality of life and patient reported outcomes analyses will be performed.

Being tested
Enamel matrix derivative, bone replacement graft, barrier membrane, Tooth extraction and replacement
Keywords
periodontitis, periodontal regeneration, tooth extraction, dental implant, fixed partial denture, survival analysis, Complication free survival, Recurrence analysis, Oral health related quality of life
Medical subject headings
Periodontitis

What participants receive

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

  • Enamel matrix derivative, bone replacement graft, barrier membraneDevice

  • Tooth extraction and replacementProcedure or surgery

Study groups in NCT04227964
Study groupRoleWhat they receive
Periodontal regenerationExperimentalPeriodontal regeneration consisting of papilla preservation flaps, application of FDA approved CE marked periodontal regenerative devices, tooth splinting and root canal treatment as required.
Receives: Device: Enamel matrix derivative, bone replacement graft, barrier membrane
Extraction and tooth replacementActive comparatorTooth extraction and replacement with a dental implant or a fixed partial denture following healing and reconstruction of the extraction area. Choice based on standard of practice.
Receives: Procedure: Tooth extraction and replacement

What is being measured

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

  1. Tooth or tooth replacement survival

    Presence of functional and symptoms free tooth or tooth replacement

    Measured: 10 year

  2. Occurrence and cost of management of recurrence

    Recurrence analysis

    Measured: 10-year

  3. Oral health related quality of life: OHIP-14 (Oral Health Impact Profile)

    14 validated questions, 5 point Liker scale, smaller scores represent better outcome (smaller impact on quality of life)

    Measured: 10 years

Secondary outcomes (2)
  1. Clinical attachment level gain

    Control outcome of periodontal regeneration

    Measured: 10 years

  2. Probing pocket depth

    Control outcome of periodontal regeneration

    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 posted14 Jan 2020
  2. Study start1 Jun 1998
  3. Primary completion31 Dec 2014
  4. Study completion31 Dec 2014

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
Single center RCT
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04227964
Sponsor's protocol ID
ATRO1998
Status last verified
Jan 2020
First submitted
9 Jan 2020
Last updated
14 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Cortellini P, Stalpers G, Mollo A, Tonetti MS. Periodontal regeneration versus extraction and dental implant or prosthetic replacement of teeth severely compromised by attachment loss to the apex: A randomized controlled clinical trial reporting 10-year outcomes, survival analysis and mean cumulative cost of recurrence. J Clin Periodontol. 2020 Jun;47(6):768-776. doi: 10.1111/jcpe.13289. Epub 2020 Apr 19.

    PubMed 32249446

Questions about this trial

What is this clinical trial studying?

A study testing Enamel matrix derivative, bone replacement graft, barrier membrane and Tooth extraction and replacement in people with Periodontitis Complex, run by The European Research Group on Periodontology (ERGOPerio) at 1 site in Hong Kong.

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 11 inclusion and 5 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 14 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 Hong Kong. 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?

Tooth or tooth replacement survival (time frame: 10 year). The study lists 3 primary outcomes in all. 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 NCT04227964, which also lists 1 linked publication.

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 14 Jan 2020.

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