CompletedNot Applicable

Clinical Comparison of LED- and Diode Laser-activated Bleaching

Turkey (Türkiye)40 participantsStarted 2018-06-19

Plain-language summary

To clinically compare the effects of LED- or Diode laser-activated bleaching on colour change, tooth-sensitivity, gingival-irritation and temperature variation over 9-months. Thirty-five patients with tooth colour A2 or higher will be included in the study. In a split-mouth design, using a 35% HP bleaching agent (Whiteness HP); one side of each mouth will be randomly activated by a diode laser (Epic X) and the other side by an LED (Radii Plus) light-source. During bleaching, the temperature variations will be recorded using a thermocouple from the buccal surface of canine teeth. Colour change (ΔSGU, ΔE) will be evaluated by subjective (Vita classic/bleached guide) and objective methods (spectrophotometry) before treatment and immediately, 48h, 1 week, 1, 6, 9 months after. Tooth-sensitivity and gingival- irritation will be assessed by visual analogue scale (VAS) and Gingival Index.

Who can participate

Age range

19 Years – 35 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: * healthy vital anterior teeth without restorations which have A2 or darker tooth shade on Vita Classical Scale (Vita Classical Scale, VITA Zahnfabrik, Bad Säckingen, Germany). Exclusion Criteria: * Pregnant or lactating woman smokers Participants with periodontal diseases, tooth sensitivity internal tooth discoloration (tetracycline/ fluorosis stains), exposed engine, peroxides allergy malpositioned teeth

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

Colour change

Timeframe: Baseline (before the treatment) and 48 hours, 1 week, 1, 6 and 9 months after.

temperature

Timeframe: Procedure (During the bleaching treatments)

Tooth sensitivity

Timeframe: Baseline (before the treatment) and 48 hours, 1 week, 1, 6 and 9 months after.

Trial details

NCT IDNCT04537754

SponsorHacettepe University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2018-10-15

View on ClinicalTrials.gov More Color; Change Teeth, Posteruptive trials