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NCT07215598

Split-Mouth Comparison of Invisalign Attachments

Enrolling by Invitation
NAAges 18+InterventionalTreatment
University of Maryland, Baltimore
~30 participants
Updated 2026-02-10 on ClinicalTrials.gov
What's tested:Composite Aligner Attachment

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Attachment Volume Accuracy
Measured over 1 month
+2 more outcomes measured

Conditions

Wear, Restoration
Volume Assessment
Clear Aligner Appliance

Explore related trials

Malocclusion

Where it's being run

1 sites across 1 states
Maryland1

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

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Eligibility criteria

Inclusion

Adults aged18 years or older.
Patients initiating Invisalign treatment with planned composite attachments.
Ability to provide written informed consent and agree to additional research intra-oral scans.
Good oral hygiene and absence of active periodontal disease at enrollment.

Exclusion

Extensive dental restorations (composites, crowns, veneers) on study teeth that could interfere with attachment bonding.
Enamel defects or severe wear on study tooth surfaces affecting bonding accuracy.
Contraindications to digital intraoral scanning (e.g., severe gag reflex, metallic prostheses preventing accurate imaging).
Severe tooth malposition that would compromise accurate attachment placement.
Poor oral hygiene or active periodontal disease at enrollment and/or if the patient develops poor oral hygiene or active periodontal disease during treatment.

What this trial measures

  • Attachment Volume Accuracy1 month

    Quantitative comparison of planned versus bonded Invisalign attachment volumes measured using 3D (three dimensional) digital scans. Each bonded attachment will be segmented from intraoral STL (Standard Tessellation Language) files and superimposed onto the corresponding planned ClinCheck model. The absolute difference in attachment volume (in mm³) between planned and bonded models will be calculated to assess bonding accuracy for optimized and conventional designs.

  • Attachment Active Surface Area Accuracy1 month

    Quantitative difference in attachment active surface area using intraoral 3D scans. STL models obtained at baseline (immediately after bonding) and at 1 month will be superimposed to calculate difference in active surface area (mm²). The mean difference between planned and bonded surface areas will be compared for optimized and conventional attachment designs to evaluate bonding precision.

  • Positional Accuracy1 month

    Difference between planned and bonded attachment position, measured as centroid displacement (mm) after 3D registration of STL models at baseline and 1 month.