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临床试验/NCT07740876
NCT07740876尚未招募不适用

Assessment of the Relationship Between Duration of Dental Education and Halitosis, Oral Hygiene Behaviors, and Associated Factors Among Dental Students

Recep Tayyip Erdogan University Training and Research Hospital1 个研究点 分布在 1 个国家目标入组 100 人开始时间: 2026年9月15日最近更新:
适应症

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
100
试验地点
1
主要终点
Halitosis Level Assessed by Organoleptic Evaluation

研究概览

简要总结

The study population will consist of undergraduate dental students enrolled at Recep Tayyip Erdoğan University Faculty of Dentistry. A total of 100 students, including 50 first-year and 50 fifth-year dental students, will be included. Eligible participants will be healthy students who meet the study criteria and provide written informed consent. Participants will undergo subjective and objective halitosis assessments, including questionnaires, organoleptic evaluation, volatile sulfur compound measurements, tongue coating assessment, and DMFT index recording.

详细描述

Halitosis, also known as oral malodor, is a multifactorial condition primarily associated with volatile sulfur compounds produced by bacterial metabolism in the oral cavity. Although previous studies have investigated factors related to halitosis, limited information is available regarding the influence of dental education duration on objective halitosis measurements and associated behavioral and psychological factors.

This study will compare first-year and fifth-year dental students to evaluate whether the duration of dental education is associated with differences in halitosis levels. Objective measurements, including organoleptic assessment and portable digital halitometer measurements of volatile sulfur compounds, will be combined with subjective assessments of halitosis perception, oral hygiene habits, perceived stress levels, tongue coating index, and DMFT index.

The findings of this study may contribute to understanding the relationship between dental education, oral health awareness, lifestyle behaviors, psychological factors, and halitosis among future dental professionals.

研究设计

研究类型
Observational
观察模型
Other
时间视角
Prospective

入排标准

年龄范围
18 Years 至 25 Years(Adult)
性别
All
接受健康志愿者

入选标准

  • Undergraduate students enrolled in the Faculty of Dentistry at Recep Tayyip Erdoğan University.
  • First-year and fifth-year dental students who agree to participate in the study and provide written informed consent.
  • Healthy students with no systemic diseases affecting oral health or halitosis assessment.
  • Students with normal nasal breathing ability.
  • Participants who comply with the pre-assessment instructions required for accurate halitosis measurements.
  • Participants who are able to complete the questionnaires and clinical evaluation procedures.

排除标准

  • Students with systemic diseases that may affect halitosis, including diabetes mellitus, respiratory disorders, liver cirrhosis, chronic renal failure, or gastrointestinal disorders.
  • Participants with active upper respiratory tract infection, sinusitis, tonsilloliths, or other conditions affecting oral odor.
  • Participants with a history of antibiotic use within the previous 3 weeks.
  • Pregnant or breastfeeding students.
  • Students unwilling to provide written informed consent.
  • Students receiving active orthodontic treatment or requiring orthognathic treatment.
  • Participants unable to comply with the pre-assessment restrictions (dietary restrictions, oral hygiene restrictions, smoking and product-use restrictions) before halitosis evaluation.

结局指标

主要结局

Halitosis Level Assessed by Organoleptic Evaluation

时间窗: Baseline

Halitosis level will be assessed using the organoleptic evaluation method performed by two trained evaluators. The perceived odor intensity will be scored according to a standardized 0-5 scale: 0 = no odor, 1 = barely noticeable odor, 2 = slight but noticeable odor, 3 = moderate odor, 4 = strong odor, and 5 = extremely strong odor. The mean score of the two evaluators will be recorded as the organoleptic halitosis score. A score of ≥2 will be considered indicative of halitosis.

Volatile Sulfur Compound (VSC) Levels Measured by Portable Digital Halitometer

时间窗: Baseline

Exhaled breath volatile sulfur compound (VSC) levels will be measured using a portable digital halitometer. Three measurements will be obtained from each participant, and the mean value will be recorded in parts per billion (ppb). Values ≥125 ppb will be considered indicative of halitosis.

Self-Perceived Halitosis Level Assessed by Visual Analog Scale (VAS)

时间窗: Baseline

Participants' self-perception of oral malodor will be evaluated using a Visual Analog Scale (VAS) ranging from 0 to 10, where 0 indicates no perceived halitosis and 10 indicates severe perceived halitosis.

次要结局

  • Perceived Stress Level Assessed by the Perceived Stress Scale (PSS)(Baseline)
  • Tongue Coating Index (TCI)(Baseline)
  • Dental Caries Experience Assessed by DMFT Index(Baseline)

研究者

发起方
Recep Tayyip Erdogan University Training and Research Hospital
申办方类型
Other
责任方
Principal Investigator
主要研究者

DİLARA NİL GÜNAÇAR

Assoc. Prof.

Recep Tayyip Erdogan University Training and Research Hospital

研究点 (1)

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