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Diode Laser 635 nm and 810 nm Photodynamic Therapy as Adjuncts to Non-Surgical Periodontal Treatment

2. oktober 2026 opdateret af: Damascus University

Clinical Effectiveness of Diode Laser 635 nm and 810 nm Adjunctive Photodynamic Therapy Versus Mechanical Treatment in Non-Surgical Management of Periodontal Pockets (A Comparative Clinical Study).

This study aims to evaluate and compare the clinical effectiveness of antimicrobial photodynamic therapy (aPDT) using toluidine blue O (TBO) activated by two different diode laser wavelengths as an adjunct to non-surgical periodontal treatment in patients with Stage II and Stage III periodontitis. Participants will be randomly allocated to three treatment groups: non-surgical periodontal treatment combined with aPDT using a 635 nm diode laser, non-surgical periodontal treatment combined with aPDT using an 810 nm diode laser, and non-surgical periodontal treatment alone. The treatment outcomes will be evaluated based on changes in the following clinical periodontal parameters: Plaque Index (PI), Bleeding on Probing (BOP), Relative Attachment Level (RAL), Probing Depth (PD), and Gingival Recession (GR).

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Several considerations support the need for this study. First, periodontal pockets are among the most common clinical manifestations of periodontal disease. There is also a need for effective treatment modalities that can complement the first-line approach of mechanical periodontal treatment, particularly in deep periodontal pockets and anatomically complex areas.

Antimicrobial photodynamic therapy (aPDT) is an emerging and promising technology in dentistry; however, findings from studies worldwide regarding its superiority over mechanical treatment remain inconsistent. Furthermore, there is a lack of studies directly comparing aPDT using different laser wavelengths with conventional mechanical treatment. Therefore, the findings of this study may provide evidence to support the selection of a more effective treatment option for patients based on scientific evidence.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

12

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: SANA MAJALDEEN SALMAN, pursuing aMSc in periodontolog
  • Telefonnummer: 00963936320891
  • E-mail: sansoun.net@gmail.com

Undersøgelse Kontakt Backup

Studiesteder

      • Damascus, Syrien
        • The study will be conducted at the Faculty of Dentistry, Damascus University, Department of Periodontology, under the supervision of Professor Wael Al- Mahdi.

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Adults aged 18 years or older (up to 65 years)
  • Participants diagnosed with Periodontitis Stage II-III according to the 2017 classification
  • Presence of at least 3 periodontal sites with a probing pocket depth (PPD) of ≥ 5 mm.
  • No periodontal treatment during the previous 6 months
  • Good general health

Exclusion Criteria:

  • Presence of systemic diseases or medical conditions that may affect periodontal status, wound healing, or the response to periodontal treatment.
  • Use of systemic antibiotics or other medications that may significantly affect periodontal treatment outcomes within the last 6 months.
  • Previous periodontal treatment within the last 6 months.
  • Known allergy or hypersensitivity to toluidine blue O or any material used in the study.
  • Pregnancy or breastfeeding.
  • Heavy smoking >10 units/day

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Arm 1: 635 nm Diode Laser-Mediated aPDT + Non-Surgical Periodontal Treatment

Participants will receive non-surgical periodontal treatment combined with antimicrobial photodynamic therapy (aPDT) using toluidine blue O activated by a 635 nm diode laser.

Participants assigned to this group will undergo non-surgical periodontal treatment with subgingival mechanical instrumentation using slim ultrasonic scaler tips. Antimicrobial photodynamic therapy will then be performed using toluidine blue O as the photosensitizing agent, activated by a 635 nm diode laser. The same treatment procedure will be repeated after two weeks.

Eksperimentel: Arm 2: 810 nm Diode Laser-Mediated aPDT + Non-Surgical Periodontal Treatment

Participants will receive non-surgical periodontal treatment combined with antimicrobial photodynamic therapy (aPDT) using toluidine blue O activated by an 810 nm diode laser.

Participants assigned to this group will undergo non-surgical periodontal treatment with subgingival mechanical instrumentation using slim ultrasonic scaler tips. Antimicrobial photodynamic therapy will then be performed using toluidine blue O as the photosensitizing agent, activated by an 810 nm diode laser. The same treatment procedure will be repeated after two weeks.

Aktiv komparator: Arm 3: Non-Surgical Periodontal Treatment Alone (Control)

Participants will receive non-surgical periodontal treatment alone, consisting of subgingival mechanical instrumentation using slim ultrasonic scaler tips, without photodynamic therapy.

Participants assigned to the control group will receive non-surgical periodontal treatment consisting of subgingival mechanical instrumentation using slim ultrasonic scaler tips. No photodynamic therapy or laser application will be performed.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in probing pocket depth (PPD).
Tidsramme: Baseline to 3 months after the first treatment session.

Probing pocket depth will be measured in millimeters from the free gingival margin to the base of the periodontal pocket using a UNC-15 periodontal probe at standardized sites.

Baseline to 3 months after the first treatment session.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Relative attachment level (RAL)
Tidsramme: from baseline to 3 months

Relative attachment level (RAL) will be measured in millimeters from a standardized fixed reference point on a vacuum stent to the base of the periodontal pocket, measured using a UNC-15 periodontal probe.

from baseline to 3 months
Change in Gingival Recession (GR).
Tidsramme: At baseline then 1 month and 3 months after the first session.

Gingival Recession (GR) will be measured in millimeters from the cementoenamel junction (CEJ) to the most apical point of the gingival margin, using a UNC-15 periodontal probe.

At baseline then 1 month and 3 months after the first session.
Change in Bleeding on Probing (BOP)
Tidsramme: At baseline then 1 month and 3 months after the first session.

The presence or absence of bleeding following standardized periodontal probing to the base of the periodontal pocket. BOP will be recorded as a dichotomous outcome (present/absent) at the selected periodontal sites, and the percentage of BOP-positive sites will be calculated at baseline and at each follow-up visit.

At baseline then 1 month and 3 months after the first session.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. februar 2027

Studieafslutning (Anslået)

1. maj 2027

Datoer for studieregistrering

Først indsendt

24. september 2026

Først indsendt, der opfyldte QC-kriterier

24. september 2026

Først opslået (Faktiske)

30. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • UDDS-2026-Perio-13

Plan for individuelle deltagerdata (IPD)

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INGEN

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