- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07716007
Bone Level Changes Using Clear Aligners Compared to Fixed Appliances in Non-Extraction Treatment of Adults
Evaluation of Bone Level Changes Using Clear Aligners Compared to Fixed Appliances in Non-extraction Treatment of Adult Patients: A Randomized Clinical Trial
This study compares two common ways of straightening teeth in adults who have mild-to-moderate crowding of the lower front teeth and do not need any teeth removed: clear aligners and traditional fixed braces.
The main aim is to find out whether the two methods differ in how they affect the bone that surrounds the teeth. Using three-dimensional X-ray scans (cone-beam CT) and digital models of the teeth taken before and during treatment, the researchers measure the level and thickness of the bone around the lower front teeth, the tilt (inclination) of the lower front teeth, and how quickly the crowding is corrected.
Adults are randomly assigned to receive either clear aligners or fixed braces, and the same measurements are compared between the two groups over about six months.
Studieoversikt
Status
Intervensjon / Behandling
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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-
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Cairo, Egypt, 11865
- Faculty of Oral and Dental Medicine, Future University in Egypt (Department of Orthodontics)
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske frivillige
Beskrivelse
Inclusion Criteria:
- Adults 18-25 years of age, of both sexes.
- Mild-to-moderate mandibular anterior crowding (2-6 mm).
- Angle Class I molar relationship with normal overjet (1-3 mm) and overbite (1-2 mm).
- Full permanent dentition with a healthy periodontium.
- Normal anteroposterior and vertical skeletal pattern.
Exclusion Criteria:
- Any local or systemic condition, or trauma, capable of affecting craniofacial growth and development.
- History of previous orthodontic or interceptive treatment.
- Loss of periodontal attachment.
- Craniofacial anomalies, facial asymmetry or skeletal discrepancy.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Aktiv komparator: Fixed appliances (Group FA)
Conventional pre-adjusted edgewise fixed appliance (0.022-inch slot, MBT prescription) bonded from first molar to first molar; levelling and alignment with a sequence of nickel-titanium and stainless-steel archwires over approximately six months.
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Brackets bonded first-molar-to-first-molar; alignment sequence 0.014" NiTi → 0.016" NiTi → 0.016 × 0.022" NiTi → 0.017 × 0.025" stainless steel.
Interproximal reduction performed on assigned contacts where indicated.
Andre navn:
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Eksperimentell: Clear aligners (Group CA)
Three-dimensionally printed, thermoformed clear aligners with bonded attachments and interproximal reduction as indicated; worn ~22 hours/day and changed per the digital staging, with clinical review every four weeks over approximately six months
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Digital intraoral scan and staging (3Shape Ortho Analyzer); 3D-printed models thermoformed into aligners; attachments bonded where planned; sequential aligners worn ~22 h/day.
Interproximal reduction per contact from canine-to-canine is done.
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in alveolar bone level
Tidsramme: Baseline (T0) and end of alignment phase (T3)) (approximately 6 months)
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Change (mm) in the distance from the cemento-enamel junction to the alveolar crest on the labial and lingual aspects of the mandibular central incisors, lateral incisors and canines, measured on CBCT (OnDemand software), calculated as the difference between baseline and end-of-alignment values.
|
Baseline (T0) and end of alignment phase (T3)) (approximately 6 months)
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in alveolar bone thickness
Tidsramme: Baseline (T0) and end of alignment phase (≈ 6 months)
|
Change (mm) in labial and lingual alveolar bone thickness measured at 3 mm and 6 mm from the CEJ and at the root apex of the mandibular central incisors, lateral incisors and canines on CBCT (OnDemand software), from baseline to end of alignment.
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Baseline (T0) and end of alignment phase (≈ 6 months)
|
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Change in mandibular incisor inclination (torque)
Tidsramme: Baseline (T0) and end of alignment phase (≈ 6 months)
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Change (degrees) in the inner angle between the long axis of each mandibular central incisors, lateral incisors and canines and the mandibular plane, measured on the sagittal view of CBCT (Invivo/Anatomage software), from baseline to end of alignment.
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Baseline (T0) and end of alignment phase (≈ 6 months)
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Rate of alignment (Little's Irregularity Index)
Tidsramme: Baseline (T0), 8 weeks (T1), 16 weeks (T2) and end of alignment (T3, ≈ 24 weeks / 6 months)
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Reduction in mandibular anterior crowding quantified by Little's Irregularity Index (mm) - the sum of the displaced anatomic contact points from canine to canine - measured on serial digital models; the change across time points and the percentage improvement from baseline describe the rate of alignment.
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Baseline (T0), 8 weeks (T1), 16 weeks (T2) and end of alignment (T3, ≈ 24 weeks / 6 months)
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: ahmed mohamed hesham elzoghary, Faculty of Oral and Dental Medicine, Future University in Egypt
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
- Beinresorpsjon
- Beinsykdommer
- Muskel- og skjelettsykdommer
- Periodontal atrofi
- Periodontale sykdommer
- Munnsykdommer
- Stomatognatiske sykdommer
- Tannsykdommer
- Oppførsel
- Romlig oppførsel
- Alveolært bentap
- Maloklusjon
- Trengsel
- Tannbehandling
- Kjeveortopediske apparater
- Kjeveortopedi
- Ortodontiske apparater, fikset
Andre studie-ID-numre
- FUE.REC (18)/7-2024
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