Periodontal DiseasesNCT07425860
Dental and Periodontal Health Levels of Dental and Medical Faculty Students
An observational study of Periodontal Diseases and Caries Dentalis, run by Recep Tayyip Erdogan University Training and Research Hospital at 1 site in Turkey (Türkiye).
Trial summary
The aim of this observational study is to investigate the relationship between periodontal and dental health status and oral health-related quality of life among dental and medical faculty students. Read more about this study
- Who is it for?
- Ages 18 to 23 yearsHealthy volunteers can take part
- Conditions the study is for
- Periodontal Diseases, Caries Dentalis
- How many people
- 400 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 16 Oct 2025to 5 Jan 2026
- How long will I take part?
- 1 Day
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 23 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: This study includes students from the Faculty of Dentistry and the Faculty of Medicine at Recep Tayyip Erdoğan University.
Who may be able to join
- Eligibility criteria include being enrolled in undergraduate studies (years 1-5),
- being systemically healthy,
- not having used antibiotics, antioxidants, or psychotropic drugs in the last 6 months,
- not smoking,
- not being obese or overweight,
- completing the survey within the specified timeframe.
Who cannot join
- Final year (6th year) medical students
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Department of Periodontology of the Faculty of Dentistry of Recep Tayyip Erdogan University
Rize, Rize Province, 53020
About this study
Official title: Comparative Evaluation of Dental and Periodontal Health Levels and Oral Health-Related Quality of Life of Dental and Medical Faculty Students
The aim of this observational study is to investigate the relationship between periodontal and dental health status and oral health-related quality of life among dental and medical faculty students.
The main question this study seeks to answer is:
Read more
Do differences in periodontal and dental health status influence oral health-related quality of life in dental and medical students?
Participants will include undergraduate students enrolled in dental and medical faculties. Periodontal and dental status will be assessed using standard clinical parameters such as plaque index, gingival index, probing pocket depth, bleeding on probing, and dental caries indices. Oral health-related quality of life will be evaluated using validated questionnaire instruments. The study aims to analyze potential associations between clinical oral health indicators and students' perceived oral health-related quality of life, as well as possible differences between the two academic groups.
- Conditions
- Periodontal Diseases, Caries Dentalis
- Keywords
- oral health, periodontal health, university, dentistry, medicine
- Medical subject headings
- Periodontal Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Dentistry students | Dental students in years 1-5 who are actively enrolled | |
| Medicine students | Medical students in years 1-5 who are actively enrolled |
What is being measured
The primary outcome is the main question the study is designed to answer.
Clinical Periodontal Parameters (Plaque Index)
Plaque Index (PI) (Silness and Löe, 1964) This index is used to evaluate the amount of dental plaque accumulation on tooth surfaces. Each tooth's four surfaces (buccal, lingual, mesial, distal) are examined using a probe or visually. Each surface is scored from 0 to 3. The average score is calculated for each tooth. The overall plaque index is obtained by averaging the scores from all examined teeth. Score Description 0 No plaque. 1 No visible plaque, but a slight film of plaque is detected when a probe is run along the gingival margin. 2 Visible plaque along the gingival margin, forming a continuous band. 3 Abundant plaque covering the gingival area and extending toward the middle of the tooth surface, including the interproximal spaces.
Measured: Day 1
Clinical Periodontal Parameters (Gingival Index)
The Gingival Index is used to assess the presence and severity of gingival inflammation (gingivitis). Four surfaces of each tooth (buccal, lingual, mesial, distal) are examined visually and with a periodontal probe. The evaluation considers color changes, edema (swelling), tissue consistency, and bleeding on probing. Each surface is scored from 0 to 3. The average score per tooth is calculated, and then the overall average is used to determine the individual's GI score. Score Description 0 Healthy gingiva: normal color and texture, no bleeding 1 Mild inflammation: slight color change and swelling, no bleeding on probing 2 Moderate inflammation: redness, edema, soft tissue, bleeding on probing 3 Severe inflammation: marked redness and swelling, ulceration, possible spontaneous bleeding
Measured: Day 1
Periodontal Clinical Parametres (Bleeding on Probing Index)
This index is used to assess the presence and severity of gingival inflammation by observing bleeding after gentle pressure is applied to the gingival sulcus using a periodontal probe. A thin periodontal probe is gently inserted into the gingival sulcus with light pressure (approximately 20-25 grams). Bleeding occurring within 10-30 seconds is observed. Each measurement site is recorded as either "bleeding present" or "bleeding absent." Presence of bleeding is an early and sensitive indicator of gingival inflammation. Score Description: 0 No bleeding 1 Bleeding present (mild or severe)
Measured: Day 1
Periodontal Clinical Parametres (Probing Pocket Depth)
Using a Williams periodontal probe, the distance between the gingival margin and the base of the periodontal pocket is measured in millimeters at six sites per tooth: mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual. All teeth are measured. The values obtained from each site are summed and then divided by the total number of sites measured. This gives the average probing depth for the individual. Measurement Interpretation 1-3 mm Healthy sulcus 4-5 mm Shallow to moderate pocket ≥6 mm Deep periodontal pocket (advanced disease)
Measured: Day 1
Decayed Missing Filled Tooth (DMFT) Index
D stands for decayed tooth
Measured: Day 1
Decayed Missing Filled Tooth (DMFT) Index
M stands for tooth lost due to decay
Measured: Day 1
Decayed Missing Filled Tooth (DMFT) Index
F stands for filled tooth
Measured: Day 1
Oral Health Impact Profile-14
It is a scale that indicates a person's quality of life related to their oral health. The scale includes 14 items covering seven sub-dimensions: functional limitation, physical pain, psychological distress, physical disability, psychological disability, social disability, and impairment. Participants rate the frequency of their experience with each item using a 5-point Likert scale (0=never, 1=rarely, 2=sometimes, 3=frequently, 4=always).
Measured: Day 1
Secondary outcomes (2)
Height
Height: a measure of vertical distance, vertical dimension, or vertical position.
Measured: Day 1
Weight
Weight is the gravitational force exerted on an object.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Feb 2026
- Study start16 Oct 2025
- Primary completion29 Dec 2025
- Study completion5 Jan 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Periodontal DiseasesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 400 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Recep Tayyip Erdogan University Training and Research Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Dilek KARADOĞAN, Recep Tayyip Erdogan University Training and Research Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07425860
- Sponsor's protocol ID
- DentistryMedicineEducation
- Status last verified
- Feb 2026
- First submitted
- 9 Feb 2026
- Last updated
- 23 Feb 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Huseynova G, Yorgancilar N, Aydogan GN, Candemir DA, Kose O. Comparative evaluation of dental caries and periodontal conditions and oral health-related quality of life of dental and medical students: a cross-sectional study. BMC Med Educ. 2026 May 14;26(1):1092. doi: 10.1186/s12909-026-09436-9.
PubMed 42135748
Study at a glance
From the registry record, last updated by the sponsor on 23 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Evaluation of Dental and Periodontal Health Levels and Oral Health-Related Quality of Life of Dental and Medical Faculty Students
- ClinicalTrials.gov ID
- NCT07425860
- Acronym / sponsor ID
- DentistryMedicineEducation
- Conditions
- Periodontal Diseases, Caries Dentalis
- Keywords
- oral health, periodontal health, university, dentistry, medicine
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 400 participants (actual)
- Lead sponsor
- Recep Tayyip Erdogan University Training and Research HospitalUniversity, hospital or other
- Study start
- 16 Oct 2025 (actual)
- Primary completion
- 29 Dec 2025 (actual)
- Study completion
- 5 Jan 2026 (actual)
- First posted
- 23 Feb 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this observational study is to investigate the relationship between periodontal and dental health status and oral health-related quality of life among dental and medical faculty students.
The main question this study seeks to answer is:
Do differences in periodontal and dental health status influence oral health-related quality of life in dental and medical students?
Participants will include undergraduate students enrolled in dental and medical faculties. Periodontal and dental status will be assessed using standard clinical parameters such as plaque index, gingival index, probing pocket depth, bleeding on probing, and dental caries indices. Oral health-related quality of life will be evaluated using validated questionnaire instruments. The study aims to analyze potential associations between clinical oral health indicators and students' perceived oral health-related quality of life, as well as possible differences between the two academic groups.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Target follow-up
- 1 Day
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Dentistry students | – | –Dental students in years 1-5 who are actively enrolled |
| Medicine students | – | –Medical students in years 1-5 who are actively enrolled |
Who may qualify
- Ages
- 18 to 23 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- This study includes students from the Faculty of Dentistry and the Faculty of Medicine at Recep Tayyip Erdoğan University.
Key inclusion criteria (6 listed)
- Eligibility criteria include being enrolled in undergraduate studies (years 1-5),
- being systemically healthy,
- not having used antibiotics, antioxidants, or psychotropic drugs in the last 6 months,
- not smoking,
- not being obese or overweight,
Key exclusion criteria (1 listed)
- Final year (6th year) medical students
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Clinical Periodontal Parameters (Plaque Index)
Time frame: Day 1
Plaque Index (PI) (Silness and Löe, 1964) This index is used to evaluate the amount of dental plaque accumulation on tooth surfaces. Each tooth's four surfaces (buccal, lingual, mesial, distal) are examined using a probe or visually. Each surface is scored from 0 to 3. The average score is calculated for each tooth. The overall plaque index is obtained by averaging the scores from all examined teeth. Score Description 0 No plaque. 1 No visible plaque, but a slight film of plaque is detected when a probe is run along the gingival margin. 2 Visible plaque along the gingival margin, forming a continuous band. 3 Abundant plaque covering the gingival area and extending toward the middle of the tooth surface, including the interproximal spaces.
Clinical Periodontal Parameters (Gingival Index)
Time frame: Day 1
The Gingival Index is used to assess the presence and severity of gingival inflammation (gingivitis). Four surfaces of each tooth (buccal, lingual, mesial, distal) are examined visually and with a periodontal probe. The evaluation considers color changes, edema (swelling), tissue consistency, and bleeding on probing. Each surface is scored from 0 to 3. The average score per tooth is calculated, and then the overall average is used to determine the individual's GI score. Score Description 0 Healthy gingiva: normal color and texture, no bleeding 1 Mild inflammation: slight color change and swelling, no bleeding on probing 2 Moderate inflammation: redness, edema, soft tissue, bleeding on probing 3 Severe inflammation: marked redness and swelling, ulceration, possible spontaneous bleeding
Periodontal Clinical Parametres (Bleeding on Probing Index)
Time frame: Day 1
This index is used to assess the presence and severity of gingival inflammation by observing bleeding after gentle pressure is applied to the gingival sulcus using a periodontal probe. A thin periodontal probe is gently inserted into the gingival sulcus with light pressure (approximately 20-25 grams). Bleeding occurring within 10-30 seconds is observed. Each measurement site is recorded as either "bleeding present" or "bleeding absent." Presence of bleeding is an early and sensitive indicator of gingival inflammation. Score Description: 0 No bleeding 1 Bleeding present (mild or severe)
Periodontal Clinical Parametres (Probing Pocket Depth)
Time frame: Day 1
Using a Williams periodontal probe, the distance between the gingival margin and the base of the periodontal pocket is measured in millimeters at six sites per tooth: mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual. All teeth are measured. The values obtained from each site are summed and then divided by the total number of sites measured. This gives the average probing depth for the individual. Measurement Interpretation 1-3 mm Healthy sulcus 4-5 mm Shallow to moderate pocket ≥6 mm Deep periodontal pocket (advanced disease)
Decayed Missing Filled Tooth (DMFT) Index
Time frame: Day 1
D stands for decayed tooth
Decayed Missing Filled Tooth (DMFT) Index
Time frame: Day 1
M stands for tooth lost due to decay
Decayed Missing Filled Tooth (DMFT) Index
Time frame: Day 1
F stands for filled tooth
Oral Health Impact Profile-14
Time frame: Day 1
It is a scale that indicates a person's quality of life related to their oral health. The scale includes 14 items covering seven sub-dimensions: functional limitation, physical pain, psychological distress, physical disability, psychological disability, social disability, and impairment. Participants rate the frequency of their experience with each item using a 5-point Likert scale (0=never, 1=rarely, 2=sometimes, 3=frequently, 4=always).
2 secondary outcomes
Height
Time frame: Day 1
Weight
Time frame: Day 1
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Feb 2026.
- Derived from this study: PubMed 42135748Huseynova G, Yorgancilar N, Aydogan GN, Candemir DA, Kose O. Comparative evaluation of dental caries and periodontal conditions and oral health-related quality of life of dental and medical students: a cross-sectional study. BMC Med Educ. 2026 May 14;26(1):1092. doi: 10.1186/s12909-026-09436-9.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Periodontal Diseases and Caries Dentalis, run by Recep Tayyip Erdogan University Training and Research Hospital at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Clinical Periodontal Parameters (Plaque Index) (time frame: Day 1). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07425860, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Feb 2026; AzTrials last refreshed its copy on 8 Nov 2026.