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CompletedNCT04631419Updated Nov 1, 2022

Effects of Flapless Laser Corticotomy in Canine Retraction

An interventional study of Flapless laser corticotomy and Canine retraction in Dental Malocclusion and Bimaxillary Protrusion, sponsored by Suez Canal University. Completed at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-11-01.

Sponsored by Suez Canal University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 4 months after the study started (first participant enrolled Jun 2018, registered Oct 2020).
Phase
Not applicable
Study type
Interventional
Enrollment
14
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is conducted to evaluate the effects of flapless laser corticotomy on the rate of canine retraction.

02

Conditions studied

  • Dental Malocclusion
  • Bimaxillary Protrusion

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Keywords

  • Flapless laser corticotomy
  • Canine retraction
03

In context

Malocclusion

457 studies on the registry are indexed under Malocclusion; 89 are open to participants now.

This study's enrollment of 14 is below the median of 36 across 372 interventional studies indexed under Malocclusion.

Browse Malocclusion studies →

Lead sponsor

Suez Canal University is the lead sponsor of 157 studies on the registry; 37 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Full complement of teeth with no congenitally missing teeth except 3rd molars.
  • Minor or no crowding cases requires four premolars extraction, canine retraction \& maximum anchorage with bimaxillary dentoalveolar protrusion.
  • No history of previous orthodontic treatment
  • Clinically healthy patients with no history of drug intake and\or no history for any systemic illness, syndromes, craniofacial deformities.
  • Vital teeth with normal periodontium and no root resorption.
  • Adequate oral hygiene; probing depth values not exceeding 3 mm across the entire dentition; adequate thickness of the attached gingiva (1-2 mm).
  • No radiographic evidence of bone loss.

Exclusion criteria

Exclusion Criteria:

  • Systemic disease that might have affected bone formation or density, such as osteoporosis, hyperparathyroidism, or vitamin D deficiency.
  • Presence of any local or systemic surgical contraindication.
  • Extracted or missing permanent tooth/teeth except for 3rd molars.
  • Facial asymmetry
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
14 participants (actual)

Study arms

  • Experimental
    Maxillary flapless laser corticotomy group

    Flapless laser corticotomy will randomly be assigned to one side of the 14 maxillary arches (experimental side) before canine retraction.

    Other: Flapless laser corticotomy · Other: Canine retraction

  • Active comparator
    Maxillary control group

    Canine retraction will be done on the other side without Laser corticotomy .

    Other: Canine retraction

  • Experimental
    Mandibular flapless laser corticotomy group

    Flapless laser corticotomy will randomly be assigned to one side of the 14 mandibular arches (experimental side) before canine retraction.

    Other: Flapless laser corticotomy · Other: Canine retraction

  • Active comparator
    Mandibular control group

    Canine retraction will be done on the other side without Laser corticotomy .

    Other: Canine retraction

Interventions

  • OtherFlapless laser corticotomy

    The flapless laser corticotomy will be done by Er, Cr: YSGG laser as a series of circular holes will be made along with the planned position. The depth of laser cutting will be measured and controlled continuously during the operation by the periodontal probe with stopper read to each 3mm depth in addition to a few parts of a millimetre depth into the medullary bone to enhance bleeding. Canine retraction will be started after this procedure.

  • OtherCanine retraction

    canine retraction will be done on 17x25 stst archwire using coil spring adjusted to 150 gm, and miniscrews will be used as an indirect method of anchorage reinforcement

06

What researchers measure

Primary outcomes

  1. Rate of canine retraction.

    distal movement of the canine , measurement unit mm divided by time unit month , using scanned digital models

    Time frame: 3 months of canine retraction , distance (mm) moved by the canine distally per month

Secondary outcomes

  1. Canine rotation

    rotation of canine measured in degrees , after 3 months of canine retraction using scanned digital models

    Time frame: 3 months, assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction

  2. First molar anchorage loss

    mesial movement of first molar measured in mm , after 3 months of canine retraction using scanned digital models

    Time frame: 3 months, assessed immediately before canine retraction and at the end of 3 months of canine retraction

  3. Root resorption

    canine root length measured in mm using cone beam CT scans

    Time frame: 3 months , assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction

  4. Periodontal condition

    assessed using periodontal probe to measure : probing depth in mm

    Time frame: 3 months , immediately before canine retraction , and at the end of 3 months of canine retraction

  5. Pulp vitality

    assessed using thermal (Cold ) test , by application of dry cotton sprayed with ethyl chloride

    Time frame: 3 months, assessed immediately before canine retraction , and at the end of 3 months of canine retraction

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Study locations

1 site
  • Orthodontic department , Faculty of dentistry , Suez Canal University
    Ismailia, Egypt
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 1, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04631419
Lead sponsor
Suez Canal University
Responsible party
Abubakr Reda Fadeel Ali Bakr (Assistant lecturer , PhD student, Suez Canal University) — Principal investigator
First posted
Nov 17, 2020
Start date
Jun 1, 2018
Primary completion
Dec 1, 2020
Completion
Dec 30, 2020
Last update
Nov 1, 2022

Study contacts

Abubakr R Bakr, Msc Assistan lecturer
principal investigator · Faculty of dentistry , Suez canal university , Ismailia , Egypt

Oversight

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

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This study is completed, as verified in Oct 2022. You cannot join it, but the record below documents what was studied.

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