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CompletedNCT03310086Updated Jul 30, 2018

Acceleration of Lower Anterior Teeth Leveling and Alignment Using Corticision

An interventional study of Traditional fixed appliance and Corticision in Crowding, Tooth, sponsored by Damascus University. Completed at 1 site in Syrian Arab Republic. Open to participants aged 18 Years to 25 Years. Per ClinicalTrials.gov, last updated 2018-07-30.

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

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Jan 2017, registered Oct 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
26
Allocation
Randomized
Ages
18 Years to 25 Years
Sex
All
01

Study summary

This experimental study will evaluate the effect of corticision on accelerating the leveling and alignment of lower crowded incisors compared with the control untreated group using cone beam computed tomography.

The study sample will consist of 26 patients with less than 6 mm crowding. The sample will be allocated randomly into two experimental groups.

The brackets and passive SS wire will be applied with radiographic metal guides between each tooth to allow for accurate corticision site 2 mm below the gingival papilla and to prevent tooth roots injury. The dentoalveolar changes occurring after leveling and alignment of lower anterior teeth will be evaluated using CBCT radiographs, Frequency, degree of root resorption, and the incidence of bone dehiscence will be assessed in relation to initial situation.

Read the detailed description

Crowding is the most common form of malocclusion. Different methods have been used to resolve crowding, including extraction and nonextraction. Corticision is an important methods to accelerate tooth movement in crowded cases. Cortical bone incision without flap elevation enhances turnover rate of surrounding structures and decreases the time for leveling and alignment. In orthodontics, CBCT imaging has been applied to evaluate impacted teeth and root resorption. But the data are very rare regarding the application of CBCT in tooth movement. So CBCT will be used in this research to evaluate the amount of external apical root resorption (EARR) and presence of dehiscence in the lower anterior teeth in the crowded cases. Furthermore, the duration of alignment will be compared between corticision group and non-corticision group.

02

Conditions studied

  • Crowding, Tooth

Keywords

  • corticision
  • CBCT
  • Crowding
03

In context

Malocclusion

323 studies on the registry are indexed under Malocclusion; 85 are open to participants now.

This study's enrollment of 26 is below the median of 37 across 242 interventional studies indexed under Malocclusion.

Browse Malocclusion studies →

Lead sponsor

Damascus University is the lead sponsor of 212 studies on the registry; 11 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 25 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • patients age 18 years or more
  • complete permanent dentition with second molars
  • crowding of less than 6 mm
  • good healthy patients without systematic diseases
  • absence of spaces in the lower dental arch
  • orthodontic treatment protocol does not required extraoral appliances, intraoral elastics, and expansion during leveling and alignment in the lower arch
  • good oral hygiene
  • absence of periodontal lesion

Exclusion criteria

Exclusion Criteria:

  • patients with syndromes, clefts, or craniofacial abnormalities or systematic diseases
  • poor oral hygiene or periodontal lesion
  • previous orthodontic treatment.
  • Inability for brackets bonding in lower anterior teeth
  • presence of extreme skeletal discrepancy in vertical , transverse and anteroposterior relations
  • Delay rebonding of any loosing brackets for more than one week in the lower anterior teeth
05

Study design

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

Study arms

  • Experimental
    Traditional fixed appliance

    Fixed orthodontic appliances will be applied for aligning and leveling of lower anterior teeth up to 19\*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets

    Device: Traditional fixed appliance

  • Experimental
    Fixed appliance and corticision

    Fixed orthodontic appliances with corticison will be applied for aligning and leveling of lower anterior teeth up to 19\*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets

    Device: Traditional fixed appliance · Procedure: Corticision

Interventions

  • DeviceTraditional fixed appliance

    aligning and leveling of lower anterior teeth using traditional fixed appliance.

  • ProcedureCorticision

    Corticison, cortical bone incision without flap elevation, will be applied to the lower anterior teeth

06

What researchers measure

Primary outcomes

  1. Speed of lower teeth movement.

    The speed of lower teeth movement during leveling and alignment stage will be measured and compared between groups.

    Time frame: After the leveling and alignment stage of the lower teeth, which will take approximately 9 months

Secondary outcomes

  1. Changes of lower teeth torque

    The torque changes of the lower teeth will be evaluated and compared between the 2 groups using CBCT.

    Time frame: Changes will be evaluated before and after the lower teeth leveling and alignment stage, which will take approximately 8 months

  2. Changes of lower teeth tipping

    The tipping changes of the lower teeth will be evaluated and compared between the 2 groups using CBCT.

    Time frame: Changes will be evaluated before and after the lower teeth leveling and alignment stage, which will take approximately 8 months

07

Study locations

1 site
  • Damascus University
    Damascus, 00963, Syrian Arab Republic
08

References and documents

Publications

  • Guo QY, Zhang SJ, Liu H, Wang CL, Wei FL, Lv T, Wang NN, Liu DX. Three-dimensional evaluation of upper anterior alveolar bone dehiscence after incisor retraction and intrusion in adult patients with bimaxillary protrusion malocclusion. J Zhejiang Univ Sci B. 2011 Dec;12(12):990-7. doi: 10.1631/jzus.B1100013. PubMed 22135148 ↗
  • Park YG. Corticision: A Flapless Procedure to Accelerate Tooth Movement. Front Oral Biol. 2016;18:109-17. doi: 10.1159/000351904. Epub 2015 Nov 24. PubMed 26599124 ↗
  • Ponder SN, Benavides E, Kapila S, Hatch NE. Quantification of external root resorption by low- vs high-resolution cone-beam computed tomography and periapical radiography: A volumetric and linear analysis. Am J Orthod Dentofacial Orthop. 2013 Jan;143(1):77-91. doi: 10.1016/j.ajodo.2012.08.023. PubMed 23273363 ↗
  • Alikhani M, Raptis M, Zoldan B, Sangsuwon C, Lee YB, Alyami B, Corpodian C, Barrera LM, Alansari S, Khoo E, Teixeira C. Effect of micro-osteoperforations on the rate of tooth movement. Am J Orthod Dentofacial Orthop. 2013 Nov;144(5):639-48. doi: 10.1016/j.ajodo.2013.06.017. PubMed 24182579 ↗
  • Castro IO, Alencar AH, Valladares-Neto J, Estrela C. Apical root resorption due to orthodontic treatment detected by cone beam computed tomography. Angle Orthod. 2013 Mar;83(2):196-203. doi: 10.2319/032112-240.1. Epub 2012 Jul 19. PubMed 22812378 ↗
  • Mathews DP, Kokich VG. Accelerating tooth movement: the case against corticotomy-induced orthodontics. Am J Orthod Dentofacial Orthop. 2013 Jul;144(1):5-13. doi: 10.1016/j.ajodo.2013.04.008. No abstract available. PubMed 23810039 ↗

Individual participant data

Plan to share: No — The Individual participant data will be only available for the researchers in the department of Orthodontics, Damascus University

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 30, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03310086
Responsible party
Sponsor
First posted
Oct 16, 2017
Start date
Jan 2017
Primary completion
Dec 20, 2017
Completion
Jul 15, 2018
Last update
Jul 30, 2018

Study contacts

Ahmad S Burhan, PhD.
study chair · Department of Orthodontics, Faculty of Dentistry, Damascus University, Damascus, 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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