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CompletedNCT05265416Updated Oct 26, 2023

Pain and Discomfort in Two Acceleration Methods of Canine Retraction

An interventional study of Piezosurgery and Low-level laser therapy in Class II Malocclusion, sponsored by Damascus University. Completed at 1 site in Syrian Arab Republic. Open to participants aged 17 Years to 28 Years. Per ClinicalTrials.gov, last updated 2023-10-26.

Sponsored by Damascus University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Oct 2021, registered Feb 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
58
Allocation
Randomized
Ages
17 Years to 28 Years
Sex
All
01

Study summary

54 patients who need extraction-based treatment of the maxillary first premolars with subsequent retraction of the maxillary canines will be divided randomly into three groups in this trial. The prolonged duration of the treatment period can cause many side effects such as white spots, caries, periodontal diseases, and pain and discomfort. So many efforts have been made to reduce the treatment time. Many procedures have been introduced to accelerate orthodontic tooth movement, which can category as surgical or non-surgical. Piezocision is a minimally invasive surgical method for accelerating orthodontic tooth movement and shortening treatment time. Low-level laser therapy (LLLT) is one of the physical acceleration methods that have contributed to decreasing treatment time.

There are three groups:

The first group (control group): the canine retraction in this group will be performed in conventional method.

The second group (Experimental group): the canine retraction in this group will be performed in association with piezocision.

The third group (Experimental group): the canine retraction in this group will be performed in association with low-level laser therapy.

Read the detailed description

Closed nickel-titanium coil springs applying 150 g of force per side will be used for retraction of the upper canine.

Regarding the Piezocision, three vertical incisions will be made (3-mm depth and 8-10 mm length) after anesthesia. The cuts will be performed mesial and distal the upper canine as well as at an equal distance from the upper canine and 2nd premolar.

Regarding the low-level laser therapy (LLLT): GaALAs diode laser (wavelength: 810 nm and exposure time of 10 seconds\point) will be applied around the upper canine in 10 sites from buccal and palatal. The middle of the extraction site will be also irradiated in 4 sites (2 buccally and 2 palatally). The LLLT will be applied 5 times in the first month of canine retraction. After that, until the class I canine relationship will be achieved, the irradiation will be repeated every two weeks.

The levels of pain and discomfort will be self-reported using a questionnaire with visual analog scales administered at five evaluation times during the first month of canine retraction.

02

Conditions studied

  • Class II Malocclusion

Keywords

  • Piezosurgery
  • Diode laser
  • low-level laser
  • Pain
03

In context

Malocclusion

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

This study's enrollment of 58 is above the median of 36 across 372 interventional studies indexed under Malocclusion.

Browse Malocclusion studies →

Lead sponsor

Damascus University is the lead sponsor of 206 studies on the registry; 10 are open to participants now.

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

04

Who can participate

Ages eligible
17 Years to 28 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Adult healthy patients, Male and female, Age range: 17-28 years.
  2. Class II Division 1 malocclusion :

    • Mild/moderate skeletal Class II (sagittal discrepancy angle ≤7)
    • Overjet ≤10
    • Normal or excessive facial height (Clinically and then cephalometrically assessed using these three angles: mandibular/cranial base angle, maxillary/mandibular plane angle, and facial axis angle)
    • Mild to moderate crowding ≤ 4
  3. Permanent occlusion.
  4. Existence of all the upper teeth (except third molars).
  5. Good oral and periodontal health:

    • Probing depth \< 4 mm
    • No radiographic evidence of bone loss.
    • Gingival index ≤ 1
    • Plaque index ≤ 1

Exclusion criteria

Exclusion Criteria:

  1. Medical problems that affect tooth movement (corticosteroid, nonsteroidal anti-inflammatory drugs (NSAIDs), ...)
  2. Presence of primary teeth in the maxillary arch
  3. Missing permanent maxillary teeth (except third molars).
  4. Poor oral hygiene or Current periodontal disease:

    • Probing depth ≥ 4 mm
    • radiographic evidence of bone loss
    • Gingival index > 1
    • Plaque index > 1
  5. Patient had previous orthodontic treatment
05

Study design

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

Study arms

  • Experimental
    Piezosurgery

    Piezocision will be applied in this group of patients using a piezosurgery knife.

    Procedure: Piezosurgery

  • Experimental
    Low-level laser therapy

    Low-level laser therapy will be applied in this group of patients using a diode laser device.

    Other: Low-level laser therapy

  • Active comparator
    Traditional treatment

    No acceleration method will be performed in this group.

    Device: Traditional treatment

Interventions

  • ProcedurePiezosurgery

    Three vertical incisions will be made (3-mm depth and 8-10 mm length) after anesthesia. The cuts will be performed mesial and distal the upper canine as well as at an equal distance from the upper canine and 2nd premolar.

  • OtherLow-level laser therapy

    GaALAs diode laser (wavelength: 810 nm and exposure time of 10 seconds\\point) will be applied around the upper canine in 10 sites from buccal and palatal.

  • DeviceTraditional treatment

    The canine retraction in this group will be performed in conventional method. Closed nickel-titanium coil springs applying 150 g of force per side will be used for retraction of the upper canine.

06

What researchers measure

Primary outcomes

  1. Change in the levels of pain

    Assessment will be performed using questionnaires via Visual Analog scale.

    Time frame: T1: after 24 hours of canine retraction commencement, T2: 3 days, T3: 7 days, T4: 14 days, and T5: 28 days following the commencement of the retraction.

  2. Change in the levels of discomfort

    Assessment will be performed using questionnaires via Visual Analog scale.

    Time frame: T1: after 24 hours of canine retraction commencement, T2: 3 days, T3: 7 days, T4: 14 days, and T5: 28 days following the commencement of the retraction.

  3. Change in the levels of swelling

    Assessment will be performed using questionnaires via Visual Analog scale.

    Time frame: T1: after 24 hours of canine retraction commencement, T2: 3 days, T3: 7 days, T4: 14 days, and T5: 28 days following the commencement of the retraction.

  4. Levels of Eating difficulty

    Assessment will be performed using questionnaires via Visual Analog scale.

    Time frame: T1: after 24 hours of canine retraction commencement, T2: 3 days, T3: 7 days, T4: 14 days, and T5: 28 days following the commencement of the retraction.

  5. Change in the levels of satisfaction

    Assessment will be performed using questionnaires via Visual Analog scale and Two-point scale: (1) Yes (2) No.

    Time frame: T5: 28 days following the commencement of the retraction.

07

Study locations

1 site
  • University of Damascus
    Damascus, Syrian Arab Republic
08

References and documents

Publications

  • Alfawal AMH, Hajeer MY, Ajaj MA, Hamadah O, Brad B, Latifeh Y. Evaluation of patient-centered outcomes associated with the acceleration of canine retraction by using minimally invasive surgical procedures: A randomized clinical controlled trial. Dent Med Probl. 2020 Jul-Sep;57(3):285-293. doi: 10.17219/dmp/120181. PubMed 32909702 ↗
  • Lombardo L, Ortan YO, Gorgun O, Panza C, Scuzzo G, Siciliani G. Changes in the oral environment after placement of lingual and labial orthodontic appliances. Prog Orthod. 2013 Sep 11;14:28. doi: 10.1186/2196-1042-14-28. PubMed 24326120 ↗
  • Aksakalli S, Calik B, Kara B, Ezirganli S. Accelerated tooth movement with piezocision and its periodontal-transversal effects in patients with Class II malocclusion. Angle Orthod. 2016 Jan;86(1):59-65. doi: 10.2319/012215-49.1. Epub 2015 May 19. PubMed 25989211 ↗
  • Keser E, Naini FB. Accelerated orthodontic tooth movement: surgical techniques and the regional acceleratory phenomenon. Maxillofac Plast Reconstr Surg. 2022 Jan 5;44(1):1. doi: 10.1186/s40902-021-00331-5. PubMed 34984554 ↗
  • Farid KA, Eid AA, Kaddah MA, Elsharaby FA. The effect of combined corticotomy and low level laser therapy on the rate of orthodontic tooth movement: split mouth randomized clinical trial. Laser Ther. 2019 Dec 31;28(4):275-283. doi: 10.5978/islsm.19-OR-19. PubMed 32255919 ↗
  • Gibreal O, Hajeer MY, Brad B. Evaluation of the levels of pain and discomfort of piezocision-assisted flapless corticotomy when treating severely crowded lower anterior teeth: a single-center, randomized controlled clinical trial. BMC Oral Health. 2019 Apr 16;19(1):57. doi: 10.1186/s12903-019-0758-9. PubMed 30991984 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05265416
Lead sponsor
Damascus University
Responsible party
Sponsor
First posted
Mar 3, 2022
Start date
Oct 22, 2021
Primary completion
Jul 12, 2022
Completion
Nov 30, 2022
Last update
Oct 26, 2023

Study contacts

Doa'a Tahseen Alfailany, DDS
principal investigator · Department of orthodontics, Damascus University, Syria
Mohammad Y Hajeer, DDS MSc PhD
study director · Department of orthodontics, Damascus University, Syria

Oversight

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

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