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Active, not recruitingNCT07169968Updated Sep 12, 2025

Effects of Micro-osteoperforations on Lower Anterior Crowding Using Clear Aligners

An interventional study of clear aligners group and micro-osteoperforations group in Mandibular Dental Crowding, sponsored by Ain Shams University. Active, not recruiting at 1 site in Egypt. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-09-12.

Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year after the study started (first participant enrolled Aug 2024, registered Aug 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years to 35 Years
Sex
All
01

Study summary

this randomized controlled trial is designed to compare between clear aligner therapy in alleviating mandibular anterior crowding alone versus with micro-osteoperforations

Read the detailed description

This study is carried on in order to provide a method to enhance the predictability of clear aligner treatment. Loss of aligner tracking is one of the problems encountered during aligner treatment that results in increasing number of aligners required to complete treatment in addition to increasing the overall treatment time and cost. Micro-osteoperforation is a method for acceleration of orthodontic tooth movement and could be used to improve tooth movement and predictability of treatment with clear aligners. So this study is aimed to evaluate the efficiency of aligner treatment during alleviation of lower anterior crowding with and without micro-osteoperforations

02

Conditions studied

  • Mandibular Dental Crowding

Keywords

  • Micro-osteoperforations
  • aligner tracking
  • lower anterior crowding
  • clear aligners
03

In context

Lead sponsor

Ain Shams University is the lead sponsor of 1,876 studies on the registry; 423 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Adult patients with age ranging from 18 to 35 years.
  2. Healthy periodontium.
  3. Presence of full set of permanent dentition excluding third molars.
  4. Patients requiring non-extraction orthodontic treatment in the mandibular arch.
  5. Mandibular anterior little's irregularity index from 3 to 6.
  6. No spaces in the mandibular arch.

Exclusion criteria

Exclusion Criteria:

  1. Presence of retained primary teeth in the mandibular arch.
  2. Patients having systemic diseases as (e.g., diabetes, osteoporosis) or taking medication that could affect tooth movement (e.g., bisphosphonates, anticancer drugs)
  3. Vulnerable patients.
  4. Smokers.
  5. Pregnant female patients.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
20 participants (estimated)

Study arms

  • Active comparator
    group 1: Clear aligner treatment

    the control group that will receive clear aligner treatment for lower anterior treatment without micro-osteoperforations

    Device: clear aligners group

  • Experimental
    group 2: clear aligner treatment with micro-osteoperforations

    the experimental group that will receive clear aligner treatment for lower anterior treatment with micro-osteoperforations using mini-implants for acceleration of tooth movement and improving aligner's tracking

    Device: micro-osteoperforations group

Interventions

  • Deviceclear aligners group

    patients with lower anterior crowding, after randomization and allocation, will receive intraoral scanning to create a digital model. using computer software, teeth segmentation, setup and stagging of tooth movement will be carried out. models for each stage of tooth movement will be three-dimentionally printed and the aligners will be thermoformed over each model. patients are instructed to wear each aligner for a week then continue to the next aligner till treatment is finished

    Also known as: control group, group 1

  • Devicemicro-osteoperforations group

    patients having lower anteriro crowding, after randomization and allocation, aligners will be produced for them. patients in this group will receive micro-osteoperforation using mini-implants before wearing the first aligner and after one month from starting treatment.

    Also known as: experimental group, group 2

06

What researchers measure

Primary outcomes

  1. aligner effectivness

    Number of aligners prescribed versus required (total number of aligners including refinements) for each group

    Time frame: 3-9 months

Secondary outcomes

  1. relief of dental crowding

    relief of crowding will be assessed using Little's Irregularity Index

    Time frame: 3-9 months

  2. gingival assessment

    measuring gingival index before and after treatment

    Time frame: 3-9 months

  3. pain assessment

    evaluating pain experienced after micro-osteoperforation using Visula Analoge score (VAS)

    Time frame: from day 1 to day 7 after micro-osteoperforations

  4. periodontal assessment

    measuring periodontal pocket depth before and after teatment

    Time frame: 3-9 months

  5. tooth mobility assessment

    measuring mobility index before and after treatment

    Time frame: 3-9 months

07

Study locations

1 site
  • Department of orthodontics, Faculty of Dentistry, Ain Shams University
    Cairo, Abassia 11566, Egypt
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 12, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07169968
Lead sponsor
Ain Shams University
Responsible party
Sponsor
First posted
Sep 12, 2025
Start date
Aug 1, 2024
Primary completion
Aug 15, 2026 (estimated)
Completion
Nov 15, 2026 (estimated)
Last update
Sep 12, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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