Orthodontic and Articular Effects of the One-Step No-Prep Protocol

Recruiting now · Not applicable

Conditions studied: Tooth Wear, Orthodontic Extrusion

In brief

This study investigates how the One-Step No-Prep protocol with orthodontic assistance affects dental and jaw function in adults treated for localized tooth wear. It focuses on the predictability and extent of orthodontic tooth movements, the impact on temporomandibular joint position and function, and the quality and long-term stability of the restored bite. Participants will receive minimally invasive bonded restorations combined with simple orthodontic mechanics. The study will evaluate changes in tooth position, bite contacts, facial vertical height, and temporomandibular joint function using digital scans, low-dose 3D imaging, jaw-tracking, and clinical examinations. Patient comfort, function, and satisfaction will also be assessed through questionnaires. The goal is to better understand how this conservative treatment performs over time.

Key facts

Study ID

NCT07533240

Run by

Mainjot Amélie

People needed

30

Starts

2026-04-01

Expected to finish

2041-02-24

Last updated by the study team

2026-04-16

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Localized tooth wear that will be treated, or has already been treated, using the OSNPO protocol.
• Age 18 years or older.
• Sufficient cognitive ability to understand the study procedures and complete the required assessments.
• Ability to read and complete the study questionnaires in French.
• Written informed consent provided.

You may not qualify if…

• No exclusion criteria.

Where it is running

• University Hospital of Liège — Liège, Belgium (enrolling)

Full record on ClinicalTrials.gov

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