This observational study aims to investigate the relationship between periodontal morphology, oral hygiene habits, and non-carious cervical lesions (NCCLs) in adults aged 18-65 years. The main questions it aims to answer are:
Is there an association between periodontal soft tissue characteristics and the presence of NCCLs? Are oral hygiene habits and parafunctional behaviors associated with NCCLs?
Participants will:
Complete a structured questionnaire about oral hygiene habits and oral behaviors Undergo a clinical periodontal examination including assessment of plaque index, gingival index, probing depth, gingival recession, keratinized tissue width, gingival phenotype, and NCCL presence on the maxillary first premolar tooth
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Adults aged between 18 and 65 years
* Presence of the maxillary first premolar tooth in the oral cavity
* Presence of at least 20 natural teeth
* Periodontally stable individuals without generalized active periodontal destruction
* Systemically healthy individuals or individuals with controlled systemic diseases
* Individuals who voluntarily agree to participate and provide informed consent
Exclusion Criteria:
* Presence of extensive restoration, caries, endodontic treatment, cervical restoration, crown/bridge restoration, orthodontic brackets, or retainers on the maxillary first premolar tooth
* Missing posterior teeth or edentulous posterior segments
* Ongoing orthodontic treatment
* Severe bruxism or use of occlusal splints/night guards
* Gastroesophageal reflux disease or bulimia nervosa
* Frequent acidic beverage consumption
* Smoking ≥5 cigarettes per day
* Pregnancy or lactation
* Individuals unable to comply with the clinical examination procedures
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Presence of Non-Carious Cervical Lesions
Timeframe: At baseline / single clinical examination