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Orthodontic Treatment Outcomes of Self Ligating System Compared to Clear Aligner System

3. juli 2026 oppdatert av: Mohanad Ali Mohammed, University of Baghdad

Orthodontic Treatment Outcomes of Self Ligating System Compared to Clear Aligner System : A Randomized Clinical Trial

This study is a multi-center, prospective, parallel-group randomized controlled trial designed to compare the orthodontic treatment outcomes of a passive self-ligating bracket system (Damon Ultima) versus a clear aligner system. The primary objective is to evaluate and compare the total orthodontic treatment duration between the two systems in patients with Angle Class I malocclusion and moderate crowding. Secondary objectives include assessing alignment efficiency, patient pain perception at multiple time intervals, dental arch dimension changes, root volume loss percentage, and overall treatment quality using the American Board of Orthodontics Objective Grading System (ABO-OGS).

Studieoversikt

Status

Har ikke rekruttert ennå

Detaljert beskrivelse

Participants aged 17-32 years with full permanent dentition, Class I canine and molar relationships, and moderate crowding (4-8 mm) will be randomly assigned in a 1:1 ratio to either the Damon Ultima group or the Clear Aligner group.

For the Damon Ultima group, brackets will be bonded according to a standardized protocol, utilizing a precise archwire sequence from 0.014-inch CuNiTi up to 0.019x0.0275-inch stainless steel wires. For the Clear Aligner group, patients will be treated with a series of thermoformed removable aligners designed via digital software, with instructions to wear them for 22 hours per day, changing aligners every 2 weeks.

Outcome measurements will include total treatment duration in months, pain perception via a 10-cm Visual Analog Scale (VAS), dental arch changes on 3D digital models, and root resorption via Cone-Beam Computed Tomography (CBCT) radiographs.

Studietype

Intervensjonell

Registrering (Antatt)

42

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

    • Al-Rusafa
      • Baghdad, Al-Rusafa, Irak, 0964
        • University of Baghdad

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Barn
  • Voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  1. Good oral and general health; no systemic conditions affecting bone metabolism or pain perception.
  2. Age range between 16-32 years.
  3. Presence of full permanent dentition except the third molars.
  4. Class I canine and molar relationship moderate crowding in both arches (6-8 mm) requiring fixed orthodontic treatment.
  5. Without previous orthodontic treatment/ functional appliances.

Exclusion Criteria:

  1. Patients will be excluded from enrollment if they have a substantial skeletal discrepancy necessitating orthognathic surgery.
  2. Patient with class Ⅱ , Ⅲ malocclusion.
  3. Patient with external or internal root resorption.
  4. Patients with poor oral hygiene or active periodontal disease.
  5. 90o or more degree of tooth rotation.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Self ligating bracket (Damon Ultima)
Patient will be treated with self ligating bracket (Damon Ultima) until dental levelling alignment , crowding resolved and case will be finished

Teeth will be bonded with Damon Ultima® bracket system by the same protocol of bonding for all patients with the same bonding materials, time and curing apparatus by highly filled light-cure adhesive (Enlight, Ormco Corp., Glendora, California, USA). Archwire sequence will be: 0.014-inch CuNiTi, 0.018-inch CuNiTi, 0.014×0.0275-inch CuNiTi, 0.018×0.0275-inch CuNiTi archwires and 0.019×0.0275-inch stainless steel Ultima finishing archwires if needed.

Appointment intervals will be 6-8 weeks for treatment mechanics, including use of inter-arch elastics, bite raiser, and finishing procedures will be standardized. All patients will receive oral hygiene instructions at each visit. In case of bracket failure, brackets will be rebonded using the same system within 24 hours, otherwise the case would be considered as dropout.

Eksperimentell: Clear aligner system
Patient will be treated with thermoformed Clear aligner until dental levelling alignment , crowding resolved and case will be finished

a series of invisible thermoformed removable aligners after designed by software and delivered to patients after the digital scanning of the initial models.

A series of nearly invisible appliances to incrementally move the teeth from their crowded initial position to their final straightened position, these subjects will instructed to wear each aligner 22 hours a day, 7 days a week . The anterior teeth will be reduce at each interproximal location by means of diamond-coated finishing strips used for interproximal reduction , in case of debond attachment should be bonded within 24 hours.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Primary Objectives : Total Treatment Duration.
Tidsramme: From baseline (day of bonding/delivery) up to treatment completion (estimated 14 to 28 months).
The total time required to complete the orthodontic treatment from the day of appliance bonding/delivery to the day of debonding/treatment completion.
From baseline (day of bonding/delivery) up to treatment completion (estimated 14 to 28 months).

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Patient Pain Perception.
Tidsramme: "Baseline (Day 1), and at 6 hours, 24 hours, 3 days, and 7 days following the initial appliance insertion and after each subsequent archwire activation or aligner change throughout the active treatment phase, up to 14 months."

Changes in pain levels scored by patients using a Visual Analog Scale (VAS), where 0 indicates "no pain" and 10 indicates "severe, unbearable pain".

Units on a scale (0-10).

"Baseline (Day 1), and at 6 hours, 24 hours, 3 days, and 7 days following the initial appliance insertion and after each subsequent archwire activation or aligner change throughout the active treatment phase, up to 14 months."
Dental Arch Alignment Efficiency
Tidsramme: Baseline (Day 1) and at the completion of the leveling and alignment phase, up to 6 months.
Assessment of dental crowding reduction measured on 3D digital models using Little's Irregularity Index (LII) Unit of Measure: Millimeters (mm).
Baseline (Day 1) and at the completion of the leveling and alignment phase, up to 6 months.
Changes in Dental Arch Dimensions
Tidsramme: Baseline (Day 1) and through study completion, an average of 14 months

Measurement of dental arch length, arch perimeter, and transverse widths (inter-canine, inter-premolar, and inter-molar widths) on 3D digital models.

Unit of Measure: Millimeters (mm).

Baseline (Day 1) and through study completion, an average of 14 months
Root Volume Loss Percentage.
Tidsramme: Baseline (Day 1) and through study completion, an average of 14 months

Evaluation of external apical root resorption and volume loss percentage of the teeth calculated via Cone-Beam Computed Tomography (CBCT).

Unit of Measure: Percentage (%).

Baseline (Day 1) and through study completion, an average of 14 months
Objective Grading System Score.
Tidsramme: Through study completion, an average of 14 months

Evaluation of the final orthodontic treatment outcome quality using the American Board of Orthodontics Objective Grading System (ABO-OGS) on digital models.

Unit of Measure: Points/Score.

Through study completion, an average of 14 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Mohanad Ali Mohammed, University of Baghdad

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

15. september 2026

Primær fullføring (Antatt)

20. november 2027

Studiet fullført (Antatt)

20. august 2028

Datoer for studieregistrering

Først innsendt

27. april 2026

Først innsendt som oppfylte QC-kriteriene

4. juni 2026

Først lagt ut (Faktiske)

10. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

3. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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