Risk Factors Favourable to Promote Intra- and Postsurgical Complications Accompanying Microscrew Insertion for Distalisation of Maxillary Dentition
10 de agosto de 2026 actualizado por: Wroclaw Medical University
Risk Factors Favourable to Promote Intra- and Postsurgical Complications Accompanying Microscrew Insertion for Distalisation of Maxillary Dentition. Randomised Control Study
Evidence for the undeniable role of microscrews in anchorage control, as well as their other advantages, such as ease of insertion and removal techniques, have led to their routine use in orthodontics.
Treatment with microscrews, despite its obvious advantages, is associated with the risk of complications, the etiology of which is multifactorial.
Identifying (and subsequently controlling) as many of them as possible through research constitutes an ongoing challenge for scientists.
This pursuit defined the purpose of the present study: to determine whether a type of TISAD insertion technique - self-drilling or self-tapping - as well as the patient's sex and maxillary quadrant constitute predisposing factors for the occurrence of certain complications.
Descripción general del estudio
Estado
Terminado
Condiciones
Tipo de estudio
Intervencionista
Inscripción (Actual)
1008
Fase
- No aplica
Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Sí
Descripción
Inclusion Criteria:
- Patients between 20 and 40 y.o. with indication for microimplant insertion in the maxilla to reinforce anchorage during en bloc distalisation.
Exclusion Criteria:
- Smoking,
- Inadequate oral hygiene
- Chronic diseases (e.g. diabetes)
- Tooth loss
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: Insertion with self-drilling technique
Each patient received two microimplants both using self- drilling method.
In accordance with the principles of a randomized controlled trial, the choice between the self-drilling and self-tapping techniques was alternated between patients by a flip of a coin performed by a dental assistant.
|
Patients received 2 miniscrews using self-drilling method. The same orthodontist (M.S.) performed all the insertion procedures. Miniscrews were always placed at the junction of the attached mucosa and alveolar gingiva, between teeth 15 and 16, and between teeth 25 and 26, in accordance with the Wrocław protocol guidelines. The investigated complications were:
|
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Experimental: Insertion with self-tapping technique
Each patient received two microimplants both using self-tapping method.
In accordance with the principles of a randomized controlled trial, the choice between the self-drilling and self-tapping techniques was alternated between patients by a flip of a coin performed by a dental assistant.
|
Patients received 2 miniscrews using self-tapping method. The same orthodontist (M.S.) performed all the insertion procedures. Miniscrews were always placed at the junction of the attached mucosa and alveolar gingiva, between teeth 15 and 16, and between teeth 25 and 26, in accordance with the Wrocław protocol guidelines. The investigated factors were:
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Assessing the presence of peri-implantitis
Periodo de tiempo: The occurrence of inflammation was recorded during subsequent follow-up visits (first 2 weeks after implantation and then every 6 weeks, until the distalization was completed, assessed up to 12 months).
|
Hypertrophy of the gingiva and/or redness and/or tendency to bleed was noted as the inflammation presence.
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The occurrence of inflammation was recorded during subsequent follow-up visits (first 2 weeks after implantation and then every 6 weeks, until the distalization was completed, assessed up to 12 months).
|
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Assessing the presence of pain lasting longer than 48 hours after implantation.
Periodo de tiempo: 2 weeks after implantation
|
Two weeks after the miniscrew implantation patients were surveyed upon pain incidence lasting longer than 48 hours.
|
2 weeks after implantation
|
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Assessing the presence of root perforation
Periodo de tiempo: Immediately after implantation
|
Root perforation was diagnosed in CBCT performed after the procedure.
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Immediately after implantation
|
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Assesing the presence of microimplant fracture
Periodo de tiempo: During implantation
|
Microimplant fracture was diagnosed during implantation, reported by the clinician.
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During implantation
|
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Assessing the stability of miniscrews
Periodo de tiempo: During subsequent follow-up visits, until the distalization was completed, assessed up to 12 months.
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The mobility of the miniscrews was checked clinically with cotton tweezers at each visit.
Miniscrews that could not sustain orthodontic force and required replacement because of mobility were considered failures.
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During subsequent follow-up visits, until the distalization was completed, assessed up to 12 months.
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio (Actual)
1 de enero de 2015
Finalización primaria (Actual)
31 de marzo de 2024
Finalización del estudio (Actual)
14 de mayo de 2024
Fechas de registro del estudio
Enviado por primera vez
21 de julio de 2026
Primero enviado que cumplió con los criterios de control de calidad
10 de agosto de 2026
Publicado por primera vez (Actual)
12 de agosto de 2026
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
12 de agosto de 2026
Última actualización enviada que cumplió con los criterios de control de calidad
10 de agosto de 2026
Última verificación
1 de junio de 2024
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- SUBZ.B190.24.005
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
NO
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
No
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
No
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