[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100649975":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":21,"responsibleParty":32,"collaborators":10,"id":36,"slug":37,"hasResults":38,"nctId":39,"briefTitle":40,"officialTitle":41,"acronym":10,"eligibilityCriteria":42,"healthyVolunteers":43,"sex":44,"minAge":45,"maxAge":46,"enrollmentInfo":47,"targetDuration":10,"studyType":50,"phases":10,"briefSummary":51,"conditions":52,"keywords":10,"overallStatus":55,"whyStopped":10,"lastUpdateSubmitDate":56,"lastUpdatePostDateStruct":57,"startDateStruct":60,"completionDateStruct":62,"leadSponsor":64,"locationsCount":65},{"fullName":5,"class":6},"Recep Tayyip Erdogan University Training and Research Hospital","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"First-Year Dental Students",null,"Participants in this cohort are undergraduate dental students in their first year of dental education at Recep Tayyip Erdoğan University Faculty of Dentistry. This cohort represents students at the beginning of their dental education. Participants will undergo halitosis assessment using subjective and objective evaluation methods, including halitosis questionnaire, organoleptic assessment, portable digital halitometer measurement of volatile sulfur compounds (VSCs), tongue coating index evaluation, and DMFT index recording. Perceived stress levels will also be evaluated using the Perceived Stress Scale. No intervention will be applied.",{"label":13,"type":10,"description":14,"interventionNames":10},"Fifth-Year Dental Students","Participants in this cohort are undergraduate dental students in their fifth year of dental education at Recep Tayyip Erdoğan University Faculty of Dentistry. This cohort represents students with advanced dental education and clinical training experience. Participants will undergo halitosis assessment using subjective and objective evaluation methods, including halitosis questionnaire, organoleptic assessment, portable digital halitometer measurement of volatile sulfur compounds (VSCs), tongue coating index evaluation, and DMFT index recording. Perceived stress levels will also be evaluated using the Perceived Stress Scale. No intervention will be applied.",[16],{"name":17,"role":18,"phone":19,"phoneExt":10,"email":20},"Dilara Nil GÜNAÇAR","CONTACT","+905412940104","dilaranil.tomrukcu@erdogan.edu.tr",[22],{"facility":23,"status":10,"city":24,"state":10,"zip":10,"country":25,"countryCode":10,"cosmosGeoPoint":26,"geoPoint":31,"contacts":10},"Recep Tayyip Erdoğan University","Rize","Turkey (Türkiye)",{"type":27,"coordinates":28},"Point",[29,30],40.52194,41.02083,{"lat":30,"lon":29},{"type":33,"investigatorFullName":34,"investigatorTitle":35,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","DİLARA NİL GÜNAÇAR","Assoc. Prof.","100649975","effect-of-dental-education-duration-on-halitosis-and-associated-factors-100649975",false,"NCT07740876","Effect of Dental Education Duration on Halitosis and Associated Factors","Assessment of the Relationship Between Duration of Dental Education and Halitosis, Oral Hygiene Behaviors, and Associated Factors Among Dental Students","Inclusion Criteria:\n\n* Undergraduate students enrolled in the Faculty of Dentistry at Recep Tayyip Erdoğan University.\n* First-year and fifth-year dental students who agree to participate in the study and provide written informed consent.\n* Healthy students with no systemic diseases affecting oral health or halitosis assessment.\n* Students with normal nasal breathing ability.\n* Participants who comply with the pre-assessment instructions required for accurate halitosis measurements.\n* Participants who are able to complete the questionnaires and clinical evaluation procedures.\n\nExclusion Criteria:\n\n* Students with systemic diseases that may affect halitosis, including diabetes mellitus, respiratory disorders, liver cirrhosis, chronic renal failure, or gastrointestinal disorders.\n* Participants with active upper respiratory tract infection, sinusitis, tonsilloliths, or other conditions affecting oral odor.\n* Participants with a history of antibiotic use within the previous 3 weeks.\n* Pregnant or breastfeeding students.\n* Students unwilling to provide written informed consent.\n* Students receiving active orthodontic treatment or requiring orthognathic treatment.\n* Participants unable to comply with the pre-assessment restrictions (dietary restrictions, oral hygiene restrictions, smoking and product-use restrictions) before halitosis evaluation.",true,"ALL","18 Years","25 Years",{"count":48,"type":49},100,"ESTIMATED","OBSERVATIONAL","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.",[53,54],"Halitosis","Dentistry","NOT_YET_RECRUITING","2026-07-31",{"date":58,"type":59},"2026-08-03","ACTUAL",{"date":61,"type":49},"2026-09-15",{"date":63,"type":49},"2026-11-15",{"name":5,"class":6},1]