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Peri-ImplantitisNCT06031467

Er,Cr:YSGG Laser Application in Peri-implantitis

A study testing Er, Cr: YSGG laser-assisted non-surgical mechanical therapy and Non-surgical mechanical therapy in people with Peri-Implantitis, run by Yuzuncu Yil University at 1 site in Turkey (Türkiye).

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

In the present study, investigators, aimed to evaluate the effect of erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser application combined with mechanical debridement (MD) on clinical parameters and biochemical parameters such as receptor activator of nuclear factor-kappa B ligand (RANKL) and… Read more about this study

Who is it for?
Ages 28 to 63 yearsHealthy volunteers can take part
Conditions the study is for
Peri-Implantitis
What is being tested?
Er, Cr: YSGG laser-assisted non-surgical mechanical therapy and Non-surgical mechanical therapy
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
1 siteTurkey (Türkiye)
Study dates
3 Feb 2020to 8 Apr 2022
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 28 to 63 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • bone loss as evidenced by X-ray and inflammatory symptoms in the soft tissue, bleeding and/or suppuration around the implant compatible with peri-implantitis (each patient had a single dental implant or the implant in the deepest pathological pocket not requiring surgical intervention was chosen in case of peri-implantitis in multiple implants);
  • radiotherapy or chemotherapy-naïve patients;
  • having no bone disease such as osteoporosis or osteopetrosis;
  • receiving no bisphosphonate therapy;
  • having functional prosthetic loading on the implant for at least six months
  • requiring no advanced surgical technique for the treatment of peri-implantitis.

Who cannot join

  • having systemic diseases such as diabetes, autoimmune disorder, renal or hepatic impairment;
  • having uncontrolled periodontal disease in natural teeth existing in the mouth;
  • smoking habit;
  • having parafunctional habits which affect osseointegration of the dental implant;
  • receiving antibiotherapy three months before the diagnosis of peri-implantitis;
  • having non-osseointegrated dental implant;
  • pregnancy and lactation.

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Nazli Zeynep Alpaslan

    Van

Other trials in Turkey (Türkiye)

About this study

Official title: Evaluation of the Effect of Erbium, Chromium:Yttrium-scandium-gallium-garnet (Er,Cr:YSGG) Laser Application on Peri-Implant Crevicular Fluid RANKL and OPG Levels in the Treatment of Peri-implantitis: A Randomized Clinical Trial

In the present study, investigators, aimed to evaluate the effect of erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser application combined with mechanical debridement (MD) on clinical parameters and biochemical parameters such as receptor activator of nuclear factor-kappa B ligand (RANKL) and osteoprotegerin (OPG) in patients with peri-implant diseases.

Read the detailed description

Peri-implantitis is a plaque-associated which involves the tissues around dental implants characterized by inflammation and progressive loss of the supporting alveolar bone. According to a meta-analysis and systematic review, the prevalence of peri-implantitis is about 22%. Biofilm, poor plaque control, and poor dental care after dental implant are implicated in the etiology of disease.

Surface decontamination of the implant is the cornerstone of peri-implantitis treatment. However, there is no sufficient evidence to demonstrate the superiority of a specific decontamination protocol in the literature. Nevertheless, a review recommended the potential use of laser-assisted procedures as an adjunct to mechanical instrumentation and implant detoxification in both non-surgical and regenerative interventions for the treatment of peri-implant diseases. Several studies have examined the role of a variety of laser types in both periodontal and peri-implant treatments and laser application has been shown to play a central role in wound healing and tissue regeneration.

Erbium lasers such as erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) use mid-infrared wavelengths which are highly absorbed by water and hydroxyapatite crystals and minerals. In a recent in vitro study, Er,Cr:YSGG laser has been shown to be a safe method in the treatment of peri-implantitis with the dual wavelength protocol. In the literature, there is a limited number of studies using Er,Cr:YSGG laser in the treatment of peri-implantitis in the in vivo setting. Although limited, favorable results have been described in a case report with 18-month follow-up, case reports of including 11 patients, and randomized-controlled clinical studies. Taken together, Er,Cr:YSGG laser seems to be an effective treatment modality in reducing clinical symptoms of peri-implantitis.

The detection of specific biomarkers in the peri-implant crevicular fluid (PICF) is promising to objectively evaluate peri-implant inflammation at baseline and assess treatment efficacy. Biomarkers are host response molecules which reflect a biological state and help to distinguish healthy from diseased tissues or to evaluate disease and its severity.

Recent discoveries regarding the receptor activator of nuclear factor-kappa B ligand (RANKL) and osteoprotegerin (OPG) receptor activator that induce and inhibit osteoclast differentiation have shown that both markers play a role in the molecular network of peri-implant bone resorption. The RANKL is a member of tumor necrosis factor (TNF) superfamily which interacts on osteoclastogenesis. It is secreted by osteoblasts, fibroblasts, and activated T cells and is associated with RANK as a surface-bound molecule which stimulates osteoclast activity. On the other hand, OPG is a soluble decoy receptor for RANKL and expressed by osteoblasts. It also inhibits the osteoclast differentiation and prevents the interaction between RANKL and RANK.

Previous studies have shown high RANKL levels in the crevicular fluid of patients with periodontitis and peri-implantitis compared to healthy dental sites. However, there are controversial results regarding OPG. Several studies have reported significantly higher OPG and RANK levels at peri-implant disease sites compared to healthy implant sites. In addition, significantly higher RANKL protein levels and significantly lower OPG protein levels have been reported in periodontitis tissue. In a study, the PICF level of soluble RANKL was not significantly correlated with clinical parameters and OPG. However, the authors found a positive correlation between the total OPG level and PICF volume, bleeding on probing (BoP) and gingival index (GI).

To the best of investigators' knowledge, there is no study investigating the effect of Er,Cr:YSGG laser as an adjunct to mechanical debridement (MD) on RANKL and OPG in the treatment of peri-implantitis. In the present study, investigators, therefore aimed to evaluate the effect of Er,Cr:YSGG laser application combined with MD on clinical parameters and biochemical parameters such as RANKL and OPG in patients with peri-implant diseases.

Being tested
Er, Cr: YSGG laser-assisted non-surgical mechanical therapy, Non-surgical mechanical therapy
Keywords
Er:Cr:YSGG, biomarkers, laser, osteoprotegerin, peri-implantitis, RANKL
Medical subject headings
Peri-Implantitis

What participants receive

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

  • Er, Cr: YSGG laser-assisted non-surgical mechanical therapyDevice

    The laser group received mechanical therapy followed by Er;Cr;YSGG laser. Laser application was performed using the bottom-up technique. Therefore, the tip was retracted about 1 mm after it was placed on the bottom of the pocket and slowly moved in the coronal direction to the parallel to the implant surface.

  • Non-surgical mechanical therapyDevice

    Traditional non surgical mechanical therapy Mechanical instrumentation in all groups was made with titanium curettes.The curette was gently inserted into the peri-implant pocket and the mechanical therapy was completed with threads felt.

Study groups in NCT06031467
Study groupRoleWhat they receive
Non-surgical mechanical therapyActive comparatorTitanium curettes were used for non-surgical mechanical therapy in both groups under local anesthesia. The curette was gently inserted into the peri-implant pocket and the mechanical therapy was completed with threads felt. The control group received mechanical therapy alone.
Receives: Device: Non-surgical mechanical therapy
Er, Cr: YSGG laser-assisted non-surgical mechanical therapyActive comparatorTitanium curettes were used for non-surgical mechanical therapy in both groups under local anesthesia. The curette was gently inserted into the peri-implant pocket and the mechanical therapy was completed with threads felt. The laser group received mechanical therapy followed by Er;Cr;YSGG laser.
Receives: Device: Er, Cr: YSGG laser-assisted non-surgical mechanical therapy

What is being measured

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

  1. Probing depth (mm)

    Probing depth (PD) (distance from peri-implant margin to peri-implant pocket base) was measured with a plastic probe in 4 regions (mesial, buccal, distal, lingual / palatial) of each implant and recorded as mm.

    Measured: 6 months

  2. Receptor activator of nuclear factor-kappa B ligand (RANKL) level (pg/mL)

    All PICF samples were collected before clinical measurements. During sample collection, the implants were isolated using cotton rolls and dried gently with an air freshener, and paper strips were advanced into the pocket until resistance was felt. The paper strips were kept in the peri-implant pocket for 30 sec. Paper strips were placed in 500-µL sterilized Eppendorf® tubes to which phosphate-buffered saline (PBS) was added. All samples were kept at -40° until analysis. The enzyme-linked immunosorbent assay (ELISA) was used to measure RANKL levels in the PICF samples in accordance with the manufacturer's instructions.

    Measured: 6 months

  3. Osteoprotegerin (OPG) level (ng/mL)

    All PICF samples were collected before clinical measurements. During sample collection, the implants were isolated using cotton rolls and dried gently with an air freshener, and paper strips were advanced into the pocket until resistance was felt. The paper strips were kept in the peri-implant pocket for 30 sec. Paper strips were placed in 500-µL sterilized Eppendorf® tubes to which phosphate-buffered saline (PBS) was added. All samples were kept at -40° until analysis. The enzyme-linked immunosorbent assay (ELISA) was used to measure OPG levels in the PICF samples in accordance with the manufacturer's instructions.

    Measured: 6 months

Secondary outcomes (3)
  1. Plaque index score (0-3)

    Plaque index was measured from the 4 surfaces of each implant. The plaque index score of each implant was calculated with Silness-Loe plaque index by dividing the total value by 4.

    0:absence of microbial plaque

    1. Thin film of microbial plaque along the free peri-implant margin
    2. moderate accumulation with plaque in the sulcus
    3. large amount of plaque in sulcus or pocket along the free peri-implant margin

    Measured: 6 months

  2. Gingival index score (0-3)

    The gingival index was measured from the 4 surfaces of each implant. The gingival index score of each implant was calculated with Silness-Loe gingival index by dividing the total value by 4.

    0:Normal gingiva

    1. Mild inflammation: slight change in color, slight oedema, no bleeding on probing
    2. Moderate inflammation: redness,oedema and glazing, bleeding on probing
    3. Severe inflammation: marked redness and oedema, ulceration, tendency to spontaneous bleeding

    Measured: 6 months

  3. Bleeding on probing (percentage)

    Bleeding on probing was measured from 4 surfaces of each implant. If there is bleeding after probing, it is recorded as +, if there is no bleeding it is recorded as _. Gingival bleeding index is calculated as a percentage of affected sites.

    Measured: 6 months

Timeline

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

  1. First posted11 Sep 2023
  2. Study start3 Feb 2020
  3. Primary completion8 Apr 2022
  4. Study completion8 Apr 2022

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
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06031467
Sponsor's protocol ID
29.01.2020/11
Status last verified
Sep 2023
First submitted
4 Sep 2023
Last updated
14 Sep 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Alpaslan Yayli NZ, Talmac AC, Keskin Tunc S, Akbal D, Altindal D, Ertugrul AS. Erbium, chromium-doped: yttrium, scandium, gallium, garnet and diode lasers in the treatment of peri-implantitis: clinical and biochemical outcomes in a randomized-controlled clinical trial. Lasers Med Sci. 2022 Feb;37(1):665-674. doi: 10.1007/s10103-021-03436-5. Epub 2021 Oct 12.

    PubMed 34637055
  • Alpaslan NZ, Altindal D, Akbal D, Talmac AC, Keskin Tunc S, Ertugrul AS. Evaluation of the effect of Er,Cr:YSGG laser application on peri-implant crevicular fluid receptor activator of nuclear factor-kappa B ligand and osteoprotegerin levels in the non-surgical treatment of peri-implantitis: A randomized clinical trial. J Periodontol. 2024 Oct;95(10):917-928. doi: 10.1002/JPER.23-0540. Epub 2024 Feb 20.

    PubMed 38375939

Questions about this trial

What is this clinical trial studying?

A study testing Er, Cr: YSGG laser-assisted non-surgical mechanical therapy and Non-surgical mechanical therapy in people with Peri-Implantitis, run by Yuzuncu Yil University at 1 site in Turkey (Türkiye).

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 6 inclusion and 7 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 Sep 2023. 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 Turkey (Türkiye). 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 (mm) (time frame: 6 months). 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 NCT06031467, which also lists 2 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 14 Sep 2023.

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