Photodynamic Therapy as an Adjunct in Periodontal Treatment (PDT-PERIO)
Clinical Evaluation of Photodynamic Therapy as an Adjunct to Scaling and Root Planing in the Treatment of Periodontal Disease: A Split-Mouth Randomized Controlled Clinical Trial
調査の概要
詳細な説明
Periodontitis is a chronic inflammatory disease characterized by the destruction of the supporting tissues of the teeth and is one of the leading causes of tooth loss worldwide. Scaling and root planing (SRP) is considered the gold standard non-surgical treatment; however, complete elimination of periodontal pathogens may be difficult in deep periodontal pockets and anatomically complex sites.
Antimicrobial photodynamic therapy (aPDT) has emerged as a minimally invasive adjunctive treatment. This technique combines a photosensitizing agent, toluidine blue O, with low-level laser irradiation to produce reactive oxygen species capable of destroying periodontal pathogens while minimizing damage to host tissues.
This study will be conducted at the Dental Clinic of the Universidad Católica de Santiago de Guayaquil, Ecuador. Thirty adult patients diagnosed with periodontitis will be enrolled. A split-mouth randomized design will be used, with one hemiarch receiving SRP alone (control) and the contralateral hemiarch receiving SRP plus aPDT (test group).
Clinical parameters including probing pocket depth (PPD), clinical attachment level (CAL), bleeding on probing (BOP), plaque index (PI), and gingival index (GI) will be recorded at baseline and at 30-day follow-up. The primary objective is to compare the clinical effectiveness of adjunctive aPDT versus conventional SRP alone in improving periodontal health outcomes.
The study has been approved by the Ethics Committee for Research in Human Subjects of the Universidad Católica de Santiago de Guayaquil (CEISH-UCSG) and will be conducted in accordance with ethical principles for human research.
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:GABRIELA G ZAMBRANO MANZABA, DDS
- 電話番号:+19546298543
- メール:gabriela.zambrano06@cu.ucsg.edu.ec
研究場所
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Guayas
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Guayaquil、Guayas、エクアドル、090101
- Dental School, Catholic University of Santiago de Guayaquil (UCSG)
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副調査官:
- HECTOR A LEMA GUTIERREZ, DDS
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コンタクト:
- GABRIELA G ZAMBRANO MANZABA, DDS
- 電話番号:9546298543
- メール:gabriela.manzaba30@gmail.com
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コンタクト:
- GABRIELA ZAMBRANO MANZABA, DDS
- 電話番号:9546298543
- メール:gabriela.zambrano06@cu.ucsg.edu.ec
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副調査官:
- PABLO M REYES CUENCA, DDS
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主任研究者:
- GABRIELA GUADALUPE ZAMBRANO MANZABA, DDS
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Adults aged 18 to 65 years.
- Diagnosis of Stage I, II, III, or IV periodontitis according to the 2018 World Workshop Classification.
- Presence of at least two hemiarches with periodontal pockets ≥5 mm suitable for a split-mouth design.
- Systemically healthy individuals.
- No periodontal treatment received within the previous 6 months.
- No use of antibiotics, anti-inflammatory drugs, or antiseptic mouth rinses within the previous 3 months.
- Ability and willingness to provide written informed consent and attend follow-up visits.
Exclusion Criteria:
- Uncontrolled systemic diseases that may affect healing or immune response.
- Use of antibiotics, corticosteroids, or immunosuppressive medications within the previous 3 months.
- Active smokers consuming more than 10 cigarettes per day.
- Pregnant or breastfeeding women.
- Presence of dental implants, defective restorations, or teeth with Grade III mobility in the selected study sites.
- Known allergy to toluidine blue O or any component of the photosensitizer.
- Individuals unable or unwilling to attend the 30-day follow-up visit.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ:Scaling and Root Planing (SRP)
Hemiarch treated with conventional non-surgical periodontal therapy consisting of scaling and root planing alone.
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Conventional non-surgical periodontal therapy performed using ultrasonic and manual instrumentation to remove subgingival biofilm and calculus.
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実験的:Scaling and Root Planing Plus Antimicrobial Photodynamic Therapy (SRP + aPDT)
Hemiarch treated with conventional scaling and root planing combined with adjunctive antimicrobial photodynamic therapy using toluidine blue O and low-level laser irradiation.
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Conventional non-surgical periodontal therapy performed using ultrasonic and manual instrumentation to remove subgingival biofilm and calculus.
Adjunctive antimicrobial photodynamic therapy using toluidine blue O as photosensitizer activated with a 650 nm low-level laser following scaling and root planing.
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change in Probing Pocket Depth (PPD)
時間枠:Baseline and 30 Days
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Mean change in probing pocket depth (PPD), measured in millimeters using a UNC-15 periodontal probe, comparing baseline and 30-day follow-up between treatment groups.
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Baseline and 30 Days
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in Clinical Attachment Level (CAL)
時間枠:Baseline and 30 Days
|
Mean change in clinical attachment level (CAL), measured in millimeters from the cemento-enamel junction to the bottom of the periodontal pocket.
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Baseline and 30 Days
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Change in Bleeding on Probing (BOP)
時間枠:Baseline and 30 Days
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Percentage of sites presenting bleeding on probing after periodontal examination.
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Baseline and 30 Days
|
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Change in Plaque Index (PI)
時間枠:Baseline and 30 Days
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Percentage of dental surfaces with visible plaque assessed using the O'Leary plaque index.
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Baseline and 30 Days
|
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Change in Gingival Index (GI)
時間枠:Baseline and 30 Days
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Mean gingival index score assessed according to the Löe and Silness criteria.
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Baseline and 30 Days
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協力者と研究者
出版物と役立つリンク
一般刊行物
- Wang P, Sun F, Ling X. Effectiveness of photodynamic therapy as an adjunctive treatment for periodontitis: A systematic review and meta-analysis. J Stomatol Oral Maxillofac Surg. 2025 Mar;126(2):102036. doi: 10.1016/j.jormas.2024.102036. Epub 2024 Sep 5.
- Nie M, Huang P, Peng P, Shen D, Zhao L, Jiang D, Shen Y, Wei L, Bible PW, Yang J, Wang J, Wu Y. Efficacy of photodynamic therapy as an adjunct to scaling and root planing on clinical parameters and microbial composition in subgingival plaque of periodontitis patients: A split-mouth randomized clinical trial. J Periodontol. 2024 Jun;95(6):535-549. doi: 10.1002/JPER.23-0195. Epub 2024 Mar 19.
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- CEISH-UCSG-045-2025. - CEISH-
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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