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Class II Division 1 MalocclusionNCT05928143

Patient Outcomes Associated With Two Accelerated Method of Retraction of Upper Front Teeth

A study testing Traditional corticotomy and Flapless corticotomy in people with Class II Division 1 Malocclusion, run by Damascus University at 1 site in Syria.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aimed to evaluate the levels of pain, discomfort, and functional impairment associated with traditional corticotomy and flapless corticotomy in the retraction of upper anterior teeth. Read more about this study

Who is it for?
Ages 17 to 28 years
Conditions the study is for
Class II Division 1 Malocclusion
What is being tested?
Traditional corticotomy and Flapless corticotomy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteSyria
Study dates
15 Feb 2018to 15 May 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 17 to 28 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Adult healthy patients
  • 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
Show all 13Show fewer
  • Permanent occlusion.
  • Existence of all the upper teeth (except third molars).
  • Good oral and periodontal health:
  • Probing depth < 4 mm
  • No radiographic evidence of bone loss.
  • Gingival index ≤ 1
  • Plaque index ≤ 1

Who cannot join

  • Medical problems that affect tooth movement (corticosteroid, nonsteroidal anti-inflammatory drugs (NSAIDs))
  • Presence of primary teeth in the maxillary arch
  • Missing permanent maxillary teeth (except third molars).
  • Poor oral hygiene or Current periodontal disease:
  • Probing depth ≥ 4 mm
  • radiographic evidence of bone loss
Show all 9Show fewer
  • Gingival index > 1
  • Plaque index > 1
  • Previous orthodontic treatment

Trial locations and contacts

1 site in 1 country.

Syria1 site
  • Orthodontics Department, Faculty of Dentistry, University of Damascus

    Damascus, DM20AM19

Other trials in Syria

About this study

Official title: Assessment of the Levels of Pain and Discomfort Associated With Corticotomy-assisted Retraction of the Anterior Maxillary Teeth Using Two Different Corticotomy Techniques. A Randomized Controlled Clinical Trial.

This study aimed to evaluate the levels of pain, discomfort, and functional impairment associated with traditional corticotomy and flapless corticotomy in the retraction of upper anterior teeth.

40 patients requiring extraction of maxillary first premolars and maximum anchorage to retract the upper anterior teeth will participate in the study. They will be divided randomly into two groups: flapless corticotomy (20 patients) and traditional corticotomy (20 patients).

Read the detailed description

A corticotomy is the cutting of the bone that involves cortical bone only, leaving intact the medullary vessels and periosteum. It offers an advantage to adult patients in reducing orthodontic treatment time. The definition of traditional corticotomy is: elevating full-thickness periodontal flaps from a coronal approach, and vertical corticotomies are made between the teeth extending from 2-3 mm apical of the alveolar crest to 2 mm beyond the tooth apices and connected by a horizontal corticotomy; this process is done on both the labial and palatal aspects.

The definition of flapless corticotomy is a minimally invasive version of corticotomy, using a piezotome to inflict bone injury. This technique entails labial and palatal interproximal piezoelectric micro-incisions into the cortical bone without reflecting periodontal flaps.

Before enrolling each subject into the study, they will be examined completely to determine the orthodontic treatment plan. The operator will inform them about the aim of the study and ask them to provide written informed consent.

Self-drilling titanium mini-implants (1.6mm diameter and 8mm length) will be used. they will be inserted between the maxillary second premolar and first molar at approximately 8-10mm above the archwires at the mucogingival junction and will be checked for primary stability (mechanical retention). Then the maxillary first premolar will be extracted. The maxillary arch will be leveled and aligned. The rectangular stainless steel archwires (0.019" × 0.025") with anterior 8mm height soldered hooks distal to the lateral incisors will be inserted.

The surgery will be carried out under local anesthesia. The traditional corticotomy will be handled by the same maxillofacial surgeon, and the flapless corticotomy will be handled by the same orthodontist.

For traditional corticotomy, incisions in the mesial aspect of one-second premolar to the mesial surface of the contralateral second premolar will be placed, and a full-thickness flap will be elevated 3 mm above the apical region of the tooth. piezoelectric under copious irrigation will make vertical and horizontal cuts (only cortical surface). The vertical cuts will be between the dental roots in the interdental cortical surfaces, stopping 2 mm short of the alveolar crest occlusally. The horizontal cut will connect the vertical cuts 2 mm beyond the root apex. These cuts will be performed from the mesial aspect one-second premolar to the mesial surface of the contralateral second premolar involving the anterior. Similarly, a palatal flap incision will be raised immediately for doing the same vertical and horizontal cuts in the superficial surface of the palatal bone.

For the flapless corticotomy, the depth of gingival tissue will be determined through bone sounding using a periodontal probe. A scalpel will be used to make the incisions through the gingiva, 4mm below the interdental papilla, to preserve the coronal attached gingiva. These vertical incisions will be placed from the mesial aspect of the one-second premolar to the mesial surface of the contralateral second premolar on the labial and palatal aspects of the maxilla through the gingiva and the underlying bone. A piezo-surgery knife will be used to create the cortical alveolar incisions to a depth of 1 mm within the cortical bone.

The surgical procedure will be performed, and (250-300) g force will be applied on each side (3-4 days) after corticotomy using two Nickle-Titanium (NiTi) springs attached between the mini-implants and the soldered hooks in a direction approximately parallel to the occlusal plane for conducting an en-masse retraction. The force level will be measured every 2 weeks after the corticotomy. Retraction will be stopped when a class I canine relationship is achieved, and a good incisor relationship will be obtained.

Being tested
Traditional corticotomy, Flapless corticotomy
Medical subject headings
Malocclusion, Angle Class II

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Traditional corticotomyProcedure or surgery

    A flap covering the alveolar process will be elevated. Perforations will be done using surgical burs, and then the flap will be returned, and sutures will be performed.

  • Flapless corticotomyProcedure or surgery

    Some incisions will be made in the mucosa of the alveolar process. Then these incisions will allow the working head of the piezotome to cut the bone in grooves. The whole procedure will not require flap elevation and replacement.

Study groups in NCT05928143
Study groupRoleWhat they receive
Traditional corticotomyActive comparatorIn this group, the acceleration procedure will be performed by elevating flaps and doing the surgical intervention directly using surgical burs.
Receives: Procedure: Traditional corticotomy
Flapless corticotomyExperimentalIn this group, the acceleration procedure will be performed without elevating flaps, and the surgical intervention will be performed using a special device.
Receives: Procedure: Flapless corticotomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in the levels of pain

    Patients will be asked this question about their feeling of pain (Item no 01): 'What is the degree of pain you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no pain - 100: the worst pain). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  2. Change in the levels of discomfort

    Patients will be asked this question about their feeling of discomfort: 'What is the degree of discomfort you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no discomfort- 100: the worst discomfort). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  3. Change in the perception of swelling

    Patients will be asked this question about their feeling of swelling: 'What is the degree of swelling you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no swelling- 100: the worst swelling). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  4. Change in the levels of chewing difficulty

    'What is the degree of mastication difficulties you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no difficulty- 100: too much difficulty). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  5. Change in the levels of swallowing difficulty

    Patients will be asked this question about their feeling of swallowing: 'What is the degree of swallowing difficulties you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no difficulty- 100: the worst difficulty). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  6. Change in the levels of jaw movement restriction

    Patients will be asked this question about their feeling about the jaw movement restriction: 'What is the degree of the jaw movement restriction you have experienced?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment levels during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no restriction- 100: maximum restriction). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days

  7. Level of satisfaction

    Patients will be asked this question about their satisfaction level: 'What is your level of satisfaction on the orthodontic treatment provided?' A standardized questionnaire will be used to assess pain, discomfort, and functional impairment during the active phase of treatment. The patient will be asked to specify a point on the visual analog scale (VAS), a 100-mm horizontal line with two focal points at its beginning and end (0: there is no satisfaction- 100: the highest satisfaction). The score will be determined by measuring the distance from the beginning until the point identified by the patient.

    Measured: This outcome will be assessed at 28 days following the surgical intervention

  8. The more discomfort procedure between two interventions

    Patients will be asked this question: (Which surgical intervention was more discomfort ("extraction of premolars" or "the surgical procedure for acceleration"?) Assessment will be performed using a three-point scale: 1- premolar extraction, 2- surgical procedure, or 3-the same.

    Measured: This outcome will be assessed at 28 days following the surgical intervention

  9. The willingness to undergo this procedure again

    Patients would be asked this question about the possibility of repeating the surgical procedure if they had to make the decision again: 'Would you accept to undergo this treatment again?' Assessment will be performed using a two-point scale: Yes/No.

    Measured: This outcome will be assessed at 28 days following the surgical intervention

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jul 2023
  2. Study start15 Feb 2018
  3. Primary completion15 Oct 2019
  4. Study completion15 May 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05928143
Sponsor's protocol ID
UDDS-Ortho-12-2023
Status last verified
Jun 2023
First submitted
23 Jun 2023
Last updated
3 Jul 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

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
  • Mousa MM, Hajeer MY, Burhan AS, Almahdi WH. Evaluation of patient-reported outcome measures (PROMs) during surgically-assisted acceleration of orthodontic treatment: a systematic review and meta-analysis. Eur J Orthod. 2022 Dec 1;44(6):622-635. doi: 10.1093/ejo/cjac038.

    PubMed 35796046
  • Charavet C, Lecloux G, Bruwier A, Rompen E, Maes N, Limme M, Lambert F. Localized Piezoelectric Alveolar Decortication for Orthodontic Treatment in Adults: A Randomized Controlled Trial. J Dent Res. 2016 Aug;95(9):1003-9. doi: 10.1177/0022034516645066. Epub 2016 Apr 29.

    PubMed 27129491
  • 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
  • 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

Questions about this trial

What is this clinical trial studying?

A study testing Traditional corticotomy and Flapless corticotomy in people with Class II Division 1 Malocclusion, run by Damascus University at 1 site in Syria.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Syria. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in the levels of pain (time frame: After 24 hours of the surgical intervention; 4 days; 7 days; 14 days; 28 days). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05928143, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2023.

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