- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07661277
Failure Rate of Infra-Zygomatic Orthodontic Mini-Screws
Factors Associated With the Failure Rate of Infra-Zygomatic Orthodontic Mini-Screws
Descripción general del estudio
Estado
Condiciones
Descripción detallada
Researchers will evaluate the influence of mini-screw length, diameter, oral hygiene status, age, sex, and loading time on the failure rate of infra-zygomatic mini-screws. Mini-screw failure will be assessed clinically by the presence of mobility or loss of stability.
Participants will:
- Receive fixed orthodontic treatment with a pre-adjusted edgewise appliance system.
- Receive infra-zygomatic mini-screws bilaterally for maxillary anchorage reinforcement.
- Receive a 10 mm × 1.8 mm mini-screw on one side with immediate loading.
- Receive a 12 mm × 2.0 mm mini-screw on the contralateral side with delayed loading.
- Receive standardized orthodontic force using elastic power chain.
- Undergo CBCT assessment to evaluate the position of the inserted mini-screws.
- Be evaluated at baseline and at one-month intervals for three consecutive months to assess mini-screw mobility or failure.
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Dhaka, Bangladesh, 1000
- Bangladesh Medical University (BMU), Dhaka,1000
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Participants aged 19 to 35 years.
- Both male and female participants.
- Patients requiring absolute anchorage for maxillary arch and orthodontic tooth movement.
- Patients undergoing fixed orthodontic treatment.
- Patients in whom infra-zygomatic mini-screws are indicated for anchorage reinforcement.
- Participants whose oral hygiene status can be clinically assessed.
- Participants willing to provide written informed consent.
Exclusion Criteria:
- Patients with incomplete history or records
- Patients with a history of previous orthodontic treatment.
- Patients with a history of maxillofacial surgery.
- Patients with a history of head or facial trauma.
- Patients with temporomandibular joint disorder.
- Medically compromised patients.
- Patients with diagnosed syndromes, congenital defects, or facial deformities.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Comparador activo: Immediate loading mini-screw group
A 10 mm length and 1.8 mm diameter infra-zygomatic mini-screw will be placed on one side of the maxillary arch and loaded immediately with orthodontic force.
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A 10 mm length and 1.8 mm diameter infra-zygomatic mini-screw will be placed on one side of the maxillary arch and loaded immediately with orthodontic force.
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Comparador activo: Delayed loading mini-screw group
A 12 mm length and 2.0 mm diameter infra-zygomatic mini-screw will be placed on the contralateral side of the maxillary arch and loaded after a delayed period.
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A 12 mm length and 2.0 mm diameter infra-zygomatic mini-screw will be placed on the contralateral side of the maxillary arch and loaded after a delayed period
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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To assess the failure rate of infra-zygomatic orthodontic mini-screws over a three-month follow-up period. Failure will be defined as any degree of clinical mobility or loss of stability of the mini-screw.
Periodo de tiempo: over a three-month follow-up period
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This is a split-mouth randomized clinical study in which each participant will receive infra-zygomatic mini-screws bilaterally.
One side will receive a 10 mm × 1.8 mm mini-screw with immediate loading, while the contralateral side will receive a 12 mm × 2.0 mm mini-screw with delayed loading.
The failure rate will be assessed clinically over a three-month follow-up period.Mini-screw failure will be assessed clinically by the presence of mobility or loss of stability.
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over a three-month follow-up period
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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To assess the failure rate of infra-zygomatic orthodontic mini-screws over a three-month follow-up period. Failure will be defined as any degree of clinical mobility or loss of stability of the mini-screw
Periodo de tiempo: Over a three-month follow-up period.
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Over a three-month follow-up period.
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Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Factors Associated with the Failure Rate of Infra-Zygomatic Orthodontic Mini-Screws
Periodo de tiempo: From October 25 to September 26
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This randomized clinical study will assess the factors associated with the failure rate of infra-zygomatic crest orthodontic mini-screws used for anchorage reinforcement during orthodontic treatment. Researchers will evaluate the influence of mini-screw length, diameter, oral hygiene status, age, sex, and loading time on the failure rate of infra-zygomatic mini-screws. Mini-screw failure will be assessed clinically by the presence of mobility or loss of stability. Participants will receive:
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From October 25 to September 26
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Director de estudio: Mahmood Sajedeen, BDS,FCPS, Bangladesh Medical University (BMU)
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- BMU/2026/1583
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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