Clear Aligners vs Fixed Appliances for Molar Distalization Using Infrazygomatic Crest Screws
Evaluation of the Treatment Effects of Different Clear Aligner and Fixed Appliance Systems in Maxillary Posterior Distalization Using Infrazygomatic Crest Screws: An In-Vivo Randomized Clinical Study
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Tipo di studio
Iscrizione (Effettivo)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Kayseri, Turchia (Türkiye), 38000
- Erciyes University, Faculty of Dentistry, Department of Orthodontics
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Bambino
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Skeletal Class I (ANB angle 0-4°), dental Class II malocclusion treatable with molar distalization
- Need for unilateral or bilateral distalization of the first molars in the range of 2-4.5 mm
- Chronological age between 13 and 18 years, regardless of skeletal age
- Normal or hypodivergent growth pattern (SN-GoGn < 39°)
- Mild to moderate maxillary crowding (less than 6 mm) and minimal or no mandibular crowding (less than 3 mm)
- No previously extracted maxillary teeth, excluding third molars
- Erupted permanent second molars
- Good oral hygiene
- Healthy periodontal tissues
Exclusion Criteria:
- Need for orthodontic tooth extraction or functional appliance therapy
- Presence of systemic disease
- Congenital or acquired craniofacial deformity involving the condyle or mandible
- Poor patient cooperation
- History of allergy to any metal
- Pre-existing root resorption prior to treatment
- Previous orthodontic treatment
- Abnormal position, depth of impaction, or close proximity to adjacent anatomical structures (sinus, neurovascular structures) of the maxillary third molar that would make its surgical extraction risky
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Separare
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
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Comparatore attivo: Group A ( Pitts21® Fixed Appliance )
Participants received maxillary posterior distalization using the Pitts21® fixed orthodontic appliance system, anchored with infrazygomatic crest (IZC) miniscrews and intraoral elastics for distalization force.
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Fixed orthodontic brackets (Pitts21 system) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.
Altri nomi:
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Sperimentale: Group B ( Invisalign® clear aligners)
Participants received maxillary posterior distalization using Invisalign® clear aligners, anchored with infrazygomatic crest (IZC) miniscrews and intraoral elastics for distalization force.
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Clear aligner system (Invisalign) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.
Altri nomi:
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Sperimentale: Group C ( ClearCorrect® clear aligners)
Participants received maxillary posterior distalization using ClearCorrect® clear aligners, anchored with infrazygomatic crest (IZC) miniscrews and intraoral elastics for distalization force.
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Clear aligner system (ClearCorrect) used for maxillary posterior distalization, anchored with infrazygomatic crest miniscrews and intraoral elastics.
Altri nomi:
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Amount of Maxillary Posterior Tooth Distalization
Lasso di tempo: From the date of infrazygomatic crest miniscrew placement and initiation of distalization force (T0) until the end of the active distalization phase (T1), assessed up to 13 months
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The amount of distalization of the maxillary premolars and molars (U4, U5, U6, U7) was measured in millimeters using three-dimensional digital dental model analysis, comparing pre-treatment (T0) and post-distalization (T1) records.
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From the date of infrazygomatic crest miniscrew placement and initiation of distalization force (T0) until the end of the active distalization phase (T1), assessed up to 13 months
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Total Distalization Duration
Lasso di tempo: From the date of miniscrew placement and start of distalization force (T0) until the date of completion of active distalization (T1), assessed up to 13 months
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The total duration of the distalization phase, calculated as the time interval between the start of force application (T0) and the completion of active distalization (T1).
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From the date of miniscrew placement and start of distalization force (T0) until the date of completion of active distalization (T1), assessed up to 13 months
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Altre misure di risultato
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Distalization Efficacy in Clear Aligner Groups
Lasso di tempo: From treatment planning (T0) until the end of active distalization (T1), assessed up to 13 months
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Distalization efficacy was calculated as the ratio of achieved to planned tooth movement (Efficacy = Achieved/Planned × 100), based on digital treatment planning, for the Invisalign and ClearCorrect groups.
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From treatment planning (T0) until the end of active distalization (T1), assessed up to 13 months
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Infrazygomatic Crest Miniscrew Success Rate
Lasso di tempo: From the date of miniscrew placement until the end of active distalization, assessed up to 13 months
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The success rate of infrazygomatic crest miniscrews used for anchorage was recorded, defined as the proportion of miniscrews remaining stable and functional throughout the distalization period without requiring replacement.
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From the date of miniscrew placement until the end of active distalization, assessed up to 13 months
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Cephalometric Skeletal, Dental, and Soft Tissue Changes
Lasso di tempo: From the date of miniscrew placement and start of distalization force (T0) until the end of active distalization (T1), assessed up to 13 months
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Skeletal, dental, and soft tissue changes were assessed using lateral cephalometric radiographs, comparing measurements obtained at the beginning (T0) and end (T1) of distalization.
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From the date of miniscrew placement and start of distalization force (T0) until the end of active distalization (T1), assessed up to 13 months
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Rotation of Premolars and Molars During Distalization
Lasso di tempo: From T0 to T1, assessed up to 13 months
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Changes in the rotational position of the maxillary premolars and molars (U4-U7) were measured using digital dental models, comparing T0 and T1 records.
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From T0 to T1, assessed up to 13 months
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Mesiodistal Tipping of Premolars and Molars During Distalization
Lasso di tempo: From T0 to T1, assessed up to 13 months
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Changes in mesiodistal crown angulation (tipping) of the maxillary premolars and molars (U4-U7) were measured using digital dental models, comparing T0 and T1 records.
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From T0 to T1, assessed up to 13 months
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Transverse Width Changes in the Maxillary Posterior Region
Lasso di tempo: From T0 to T1, assessed up to 13 months
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Changes in transverse arch width at the level of the premolars and molars (U4-U7) were measured using digital dental models, comparing T0 and T1 records.
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From T0 to T1, assessed up to 13 months
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Pain Level Assessed by Visual Analog Scale
Lasso di tempo: From day 1 after miniscrew placement/appliance activation up to the end of active distalization, assessed at 5 time points (day 1, week 1, month 1, month 3, and end of distalization; up to 13 months)
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Pain associated with treatment was assessed using the Visual Analog Scale (VAS, 0-10) at multiple time points: day 1, week 1, month 1, month 3, and end of distalization.
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From day 1 after miniscrew placement/appliance activation up to the end of active distalization, assessed at 5 time points (day 1, week 1, month 1, month 3, and end of distalization; up to 13 months)
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Anxiety Level Assessed by the Çapa Anxiety Scale
Lasso di tempo: From day 1 after miniscrew placement/appliance activation up to the end of active distalization, assessed at 5 time points (day 1, week 1, month 1, month 3, and end of distalization; up to 13 months)
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Patient anxiety related to treatment was assessed using the Çapa Anxiety Scale at multiple time points: day 1, week 1, month 1, month 3, and end of distalization.
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From day 1 after miniscrew placement/appliance activation up to the end of active distalization, assessed at 5 time points (day 1, week 1, month 1, month 3, and end of distalization; up to 13 months)
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Collaboratori e investigatori
Sponsor
Sponsor
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Inizio studio
Completamento primario (Effettivo)
Completamento primario
Completamento dello studio (Effettivo)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- TDH-2025-15402
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