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CompletedNCT05758103LRRCTUpdated Mar 7, 2023

Limosilactobacillus Reuteri as an Adjuvant in the Treatment of Peri-implant Mucositis

An interventional study of Limosilactobacillus reuteri Prodentis® (combining L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 strains) in Peri-implant Mucositis, sponsored by Malo Clinic. Completed at 1 site in Portugal. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-03-07.

Sponsored by Malo Clinic · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 1 month after the study started (first participant enrolled Jan 2022, registered Feb 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Mechanical debridement is the traditional method for the treatment of peri-implant mucositis and its success depends on the patient's correct oral hygiene. It is believed that probiotics may help by their ability to modulate the oral biofilm, resulting in anti-inflammatory and anti-bacterial plaque action. The aim of this study is to evaluate the adjuvant effect of the probiotic Limosilactobacillus reuteri in the mechanical treatment of peri-implant mucositis. This study aims to include 32 subjects with implant-supported total rehabilitation and peri-implant mucositis, divided into test and control groups, equally subjected to professional mechanical debridement, with the administration of a daily GUM® PerioBalance® lozenge for 30 days added to the test group. Plaque Index, Bleeding Index and probing pocket depth are evaluated before the intervention (baseline) and at 6 and 10 weeks later.

02

Conditions studied

  • Peri-implant Mucositis

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Keywords

  • probiotic
  • Limosilactobacillus reuteri
  • dental implant
  • peri-implant mucositis
  • total rehabilitation
  • mechanical therapy
  • nonsurgical treatment
03

In context

Mucositis

488 studies on the registry are indexed under Mucositis; 70 are open to participants now.

This study's enrollment of 32 is below the median of 50 across 394 interventional studies indexed under Mucositis.

Browse Mucositis studies →

Lead sponsor

Malo Clinic is the lead sponsor of 8 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

(i) dental implants placed for at least 12 months according to the All-on-4® concept;

(ii) removal of the dental prosthesis as part of the conventional implant maintenance protocol;

(iii) modified Bleeding Index19 score >0 in at least one implant in the studied rehabilitation;

(iv) implants connected to the prosthesis by means of transepithelial abutments;

(v) if there were natural teeth in opposing arch, they were periodontally healthy or had been treated for periodontitis and were on periodontal support with residual pockets ≤5mm;

(vi) demonstrated previous compliance with oral hygiene appointments; (vii) read and signed the informed consent.

Exclusion criteria

Exclusion Criteria:

(i) Peri-implantitis proven clinically (implant mobility, suppuration and/or pocket depth (PD) ≥5mm) and/or radiographically (bone remodeling greater than 2mm in the first year of function20 and mean marginal bone loss greater than 0.2mm for each subsequent year21 in the rehabilitated arch that was intended to be studied);

(ii) clinically active peri-implantitis (mobility, suppuration and/or PD ≥5mm) in the opposing arch to the one intended to be studied;

(iii) presence of an extra-maxillary/zygomatic implant in the rehabilitated arch that was intended to be studied;

(iv) current probiotic supplementation;

(v) diabetes mellitus not controlled by medication;

(vi) current use of oral hygiene products containing chlorohexidine or essential oils;

(vii) special needs individuals who depended on others for their oral hygiene and medication uptake.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    Mechanical debridement + probiotic supplement

    Patients with peri-implant mucositis treated through non-surgical professional mechanical debridement and probiotic supplement Limosilactobacillus reuteri Prodentis® (combining L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 strains).

    Dietary Supplement: Limosilactobacillus reuteri Prodentis® (combining L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 strains)

  • No intervention
    Mechanical debridement

    Patients with peri-implant mucositis treated through non-surgical professional mechanical debridement alone

Interventions

  • Dietary supplementLimosilactobacillus reuteri Prodentis® (combining L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 strains)

    Non-surgical professional mechanical debridement and probiotic supplement Limosilactobacillus reuteri Prodentis® (combining L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 strains)

06

What researchers measure

Primary outcomes

  1. Modified bleeding index

    Change of the bleeding score on each dental implant from baseline to 6 weeks and from baseline to10 weeks. Modified bleeding index- 0: absence of bleeding; 1: isolated bleeding spots visible; 2: blood forms a confluent red line on margin; 3: heavy or profuse bleeding.

    Time frame: baseline, 6 weeks, 10 weeks

Secondary outcomes

  1. Modified plaque index

    Change of the bacterial plaque score on each dental implant from baseline to 6 weeks and from baseline to10 weeks. Modified plaque index- 0: absence of plaque; 1: plaque only visible after running the periodontal probe through the peri-implant sulcus around the implant; 2: plaque visible by the naked eye; 3: abundance of soft matter.

    Time frame: baseline, 6 weeks, 10 weeks

  2. Probing pocket depth

    Change of the probing pocket depth in milimeters on each dental implant from baseline to 6 weeks and from baseline to10 weeks. Values over 4 mm might indicate the presence of an acute or chronical peri-implant condition.

    Time frame: baseline, 6 weeks, 10 weeks

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Study locations

1 site
  • Malo Clinic
    Lisbon, 1600-042, Portugal
08

References and documents

Individual participant data

Plan to share: Yes — Upon reasonable request to the Principal Investigator

Supporting information: Study protocol, Sap

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 7, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05758103
Lead sponsor
Malo Clinic
Responsible party
Sponsor
First posted
Mar 7, 2023
Start date
Jan 5, 2022
Primary completion
May 31, 2022
Completion
Sep 18, 2022
Last update
Mar 7, 2023

Study contacts

Gonçalo Parreira, MSc
principal investigator · Maló Clinic

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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