Tedlar Bag Stability of Volatile Sulfur Compounds for Remote Halitosis Diagnosis (Malodorix)
Relevance of Using Tedlar Bags for the Remote Evaluation of the Stability of Volatile Sulfur Compounds in Gaseous Samples for the Diagnosis of Halitosis
Halitosis, or bad breath, affects about 30% of people worldwide and is most often caused by oral diseases such as periodontitis. To diagnose it, dentists usually perform a clinical examination and measure specific gases in the breath called volatile sulfur compounds (VSCs), which are responsible for bad odor. However, the equipment needed for this analysis is not widely available, forcing many patients to travel long distances. This study aims to determine whether breath samples can be collected and analyzed later, making remote diagnosis possible. Specifically, it evaluates whether the levels of these gases remain stable for up to 7 days after collection, with a variation of less than 20% considered acceptable. To do this, 100 adult patients with periodontal conditions will be included in a single-center study.
During a single visit, patients will provide breath samples by exhaling into a special Tedlar bag and a syringe, which will then be analyzed immediately and again after 7 days using a device called OralChroma. Afull periodontal examination will also be performed, and patient information such as age and risk factors will be collected. The study will also examine how gas levels change over time and whether they are linked to gum disease. If the results confirm that the samples remain stable, this approach could allow patients to collect their breath at home and receive a diagnosis remotely, reducing the need for travel and improving access to care.
調査の概要
状態
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究場所
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Les Hôpitaux Universitaires de Strasbourg
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Strasbourg、Les Hôpitaux Universitaires de Strasbourg、フランス、6700
- Clinique Dentaire
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主任研究者：
- olivier HUCK, MD
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コンタクト：
- Sarah Hustache, MD
- メール：dpidrci@chru-strasbourg.fr
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主任研究者：
- Pierre-Yves GEGOUT, MD
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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:
Adult subject, male or female
- Subject affiliated with a health insurance system
- Subject able to sign the non-opposition form
- Subject attending a consultation at UF8607 for diagnosis and treatment of a periodontal condition
Exclusion Criteria:
- - Subject under legal protection (judicial safeguard)
- Subject under guardianship or curatorship
- Pregnancy or breastfeeding
- Inability to provide the subject with informed information (e.g., emergency situation, comprehension difficulties)
- Subject currently enrolled in another clinical research protocol or in an exclusion period
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：診断
- 割り当て：なし
- 介入モデル：単一グループの割り当て
- マスキング：なし（オープンラベル）
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 |
|---|---|---|
|
Proportion of patient showing a decrease of 20% of H2S level at day 7
時間枠：The measurement will be performed at baseline (day 0) and seven days later (day 7)
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Analysis of difference in H₂S levels measured in exhaled air between the time of sampling and at 7 days of less than 20% of the baseline value
|
The measurement will be performed at baseline (day 0) and seven days later (day 7)
|
協力者と研究者
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。