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临床试验/NCT06967402
NCT06967402招募中不适用

Comparative Clinical Efficacy and Microbiological Effects of Two Oral Antiseptics Used as an Adjuvant in the Treatment of Severe Periodontitis

The University of Hong Kong1 个研究点 分布在 1 个国家目标入组 60 人开始时间: 2025年11月20日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
招募中
入组人数
60
试验地点
1
主要终点
% Bleeding on probing (BoP)

研究概览

简要总结

The focus of this study is on two types of mouthwashes - one containing a chlorhexidine (CHX) at 0.2% (CHX), and the other one containing CHX at a lower concentration of 0.12% with cetylpyridinium chloride (CPC). Both mouthwashes are used to help in the treatment of gum disease. CHX has been known for a long time for its effectiveness against plaque and mouth inflammation. It could inhibit and even kill them. However higher concentrations of CHX comes with unwanted side effect including altered taste, teeth staining and irritation in the mouth. Interestingly, these side effects seem to occur less frequently when a lower concentration CHX solution is used. CPC also combats bacteria by adhering quickly to the surfaces inside your mouth, although it has less substantivity than CHX, it has been shown to reduce plaque and gum inflammation effectively, and it typically causes fewer side effects than CHX. We hypothesize that this new formulation of CHX 0.12%+CPC mouthwash is non-inferior to CHX 0.2% in terms of its anti-plaque and anti-inflammatory properties while presenting with less side effects after 21 days of use. Microbiological samples and fluids from periodontal pockets will be collected before and after treatment for analysis of microbiological effects.

详细描述

  • Aim: To compare the effects of 2 formulations of antiseptics on clinical efficacy (reduction of gingival inflammation and plaque) and oral microbiome when used as an adjuvant in periodontal treatment.
  • Hypothesis: HA: The study mouthwash (CLX 0.12% + CPC 0.05%) when used as an adjunct to step 1 periodontal therapy, is non-inferior to control mouthwash (CHX 0.2%) in terms of inflammation and plaque control.
  • Primary outcome: Changes in full mouth Bleeding on Probing (BoP) at 2 months after 21 days daily use of test mouthwash as an adjunct to step 1 periodontal therapy compared to active control.
  • Secondary outcome:

Changes in BoP at 21 days after baseline. Changes in Löe and Silness Gingival Index at 21 days and 2 months after baseline.

Changes in modified O'Leary plaque index and Turesky modification of Quigley-Hein plaque index at 21 days, 2 months after baseline.

Changes in Tongue Coating Index and Lobene Stain Index at 14, 21 days and 2 months after baseline.

Pocket probing depth (PPD) and clinical attachment level (CAL) changes 2 months after baseline.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

盲法说明

The allocation concealment will be maintained from all parties until data analysis stage.

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Consenting patients with at least 6 evaluable teeth in each quadrant, including minimum 1 molar and 1 premolar.
  • Generalized stage II-III periodontitis patients.
  • Baseline BOP > 25%.
  • No known allergy or adverse effects to CHX or CPC
  • Non-smokers, non-orthodontic patients, no concurrent or past antibiotics/medication known to affect periodontal status (i.e. calcium antagonists, phenytoin)/anti-inflammatory therapy (i.e. NASIDs) in the last 3 months, pregnant/breastfeeding, compliance to study procedures.
  • ASA class I-II patients.
  • Either non-diabetic or with controlled diabetes (HbA1C<7).
  • Normal/Elevated blood pressure (AHA - Systolic <130mmHg; Diastolic <80mmHg).
  • No radiation/chemotherapy in the past 5 years
  • No immunosuppression including drug induced immunosuppression.
  • No participation in other clinical studies in the last 4 weeks.
  • No administration of CHX or CPC in the last 3 months
  • No periodontal treatment in the last 3 months.

排除标准

  • Unable to provide written consent.
  • Non-compliant study procedures.
  • Patients with medical (including psychiatric) and pharmacotherapeutic histories that, in the investigator's opinion, may compromise the protocol.
  • Patients requiring antibiotics prophylaxis for dental procedures.
  • Patients with self-reported pregnancy or patients who are breastfeeding.
  • Patients with history of use of systemic antibiotics, in combination with any form of periodontal treatment, within the past 3 months.
  • Patients with uncontrolled endocrine disease.
  • Patients who are not compliant with the review protocol, leading to deviation of more than 1 week.
  • Patients requiring the admission of systemic antibiotics, in combination with any form of dental treatment, during the study period.

研究组 & 干预措施

Active control

Active Comparator

CHX 0.2%

干预措施: Control (chlorhexidine with cetylpyridinium chloride) (Other)

Experimental

Experimental

CHX 0.12%+CPC 0.05%

干预措施: Experimental (chlorhexidine) (Other)

结局指标

主要结局

% Bleeding on probing (BoP)

时间窗: 2 months

% BoP will be assessed at 6 surfaces (mesiobuccal, mid buccal, disto-buccal, mesio-oral, mid-oral, disto-oral.) in a dichotomous manner (Mühlemann \& Son, 1971). Bleeding will be positive after 15 seconds of probing the gingival sulcus to the most apical stop. The percentage of the full mouth BoP will be reported.

次要结局

  • Shannon or Simpson Diversity Index(2 months)
  • % Bleeding on probing (BoP)(21 days)
  • Macpherson modification of the Lobene Stain Index (MLSI)(21 days and 2 months)
  • Full mouth plaque score(21 days and 2 months)
  • Clinical attachment level(2 months)
  • Pocket probing depth (PPD)(2 months)
  • Patient-reported outcome measures for mouthwash (PROMs-MW)(14 days, 21 days, 2 months)
  • Oral health impact profile for chronic periodontitis (OHIP-CP)(21 days and 2 months)
  • Löe and Silness Gingival Index(21 days and 2 months)
  • Turesky modification of Quigley-Hein plaque index (TQHPI)(21 days and 2 months)
  • Bray-Curtis Dissimilarity(2 months)
  • Biomarker concentrations from gingival cervicular fluid(2 months)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Dr. Melissa Fok

Professor

The University of Hong Kong

研究点 (1)

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