Efficiency of Canine Retraction Using Different Reactivation Intervals
23 de mayo de 2021 actualizado por: Yehya Mostafa, Future University in Egypt
Comparing Canine Retraction Using Two-week, Four-week, Six-week and Eight-week Reactivation Intervals
Canine retraction after 1st premolar extracion into the extraction space is a routine treatment in orthodontics.
Orthodontic patients requiring first premolar extraction, canine retraction and maximum anchorage were recruited for this randomized controlled trial.
A search of the literature did not indicate the ideal frequency of elastomeric chain reactivation for optimum canine retraction.
The study was approved by the ethical committee.
The first premolars were extracted.
Elastomeric chains were used to retract the canine distally into the 1st premolar space.
The optimum reactivation interval was evaluated regarding the efficiency of treatment in terms of rate of canine retraction, canine tipping and rotation, root resorption and pain at the intervals of 2, 4, 6 and 8 weeks.
Three dimensional imaging, as well as digital scanning were the methods for data collection.
Descripción general del estudio
Estado
Reclutamiento
Condiciones
Intervención / Tratamiento
Descripción detallada
The canines, 2nd premolars, 1st molars and 2nd molars were bonded and banded.
Leveling and alignment was achieved.
After the first premolar extraction, temporary anchorage devices were inserted interradicular between 2nd premolar and 1st molar.
Canine retraction was performed on a 0.016" X 0.022" stainless steel arch wire.
A power arm was extended to apply the force closer to the center of resistance and achieve bodily movement.
Elastomeric chains were calibrated to deliver a force of 150g and extended from the power arm to the mini screws directly.
Recruited patients were randomly allocated to four groups according to the duration between the elastomeric chain reactivation.
Canine reactivation intervals were 2, 4, 6, or 8 weeks.
Cone beam computed tomography was performed before canine retraction and after 6 months of retraction.
Digital dental casts were taken before canine retraction and monthly for 6 months.
Tipo de estudio
Intervencionista
Inscripción (Anticipado)
56
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Estudio Contacto
- Nombre: Reem ElShazly, MSc
- Número de teléfono: +201114666516
- Correo electrónico: reemhazem24@gmail.com
Copia de seguridad de contactos de estudio
- Nombre: Rudayna El-Badawy, MSc
- Número de teléfono: +201159218899
- Correo electrónico: rudaynaelbadawy@gmail.com
Ubicaciones de estudio
-
-
-
Cairo, Egipto, 11865
- Reclutamiento
- Future University in Egypt
-
Contacto:
- Yehya Mostafa, PhD
- Correo electrónico: yehya3d@gmail.com
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-
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
13 años a 30 años (Niño, Adulto)
Acepta Voluntarios Saludables
No
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Patients requiring 1st premolar extraction (e.g bimaxillary dentoalveolar protrusion)
- Erupted full set of permanent teeth (excluding 3rd molars)
Exclusion Criteria:
- Systemic diseases that would interfere with bone metabolism
- Craniofacial syndromes
- congenitally missing or extracted permanent teeth.
- periodontally compromised patients
- smokers
- pregnant women
- previous orthodontic treatment
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: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: 2-week reactivation interval
Replacement of elastomeric chain every 2 weeks and reestablishing a 150 g force
|
Canines will be retracted using short elastomeric chains.
Force applied to canines will be 150g.
|
|
Comparador activo: 4-week reactivation interval
Replacement of elastomeric chain every 4 weeks and reestablishing a 150 g force
|
Canines will be retracted using short elastomeric chains.
Force applied to canines will be 150g.
|
|
Experimental: 6-week reactivation interval
Replacement of elastomeric chain every 6 weeks and reestablishing a 150 g force
|
Canines will be retracted using short elastomeric chains.
Force applied to canines will be 150g.
|
|
Experimental: 8-week reactivation interval
Replacement of elastomeric chain every 8 weeks and reestablishing a 150 g force
|
Canines will be retracted using short elastomeric chains.
Force applied to canines will be 150g.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Rate of canine retraction
Periodo de tiempo: Baseline to 1 month
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
Baseline to 1 month
|
|
Rate of canine retraction
Periodo de tiempo: 1month to 2 months
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
1month to 2 months
|
|
Rate of canine retraction
Periodo de tiempo: 2 months to 3 months
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
2 months to 3 months
|
|
Rate of canine retraction
Periodo de tiempo: 3 months to 4 months
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
3 months to 4 months
|
|
Rate of canine retraction
Periodo de tiempo: 4 months to 5 months
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
4 months to 5 months
|
|
Rate of canine retraction
Periodo de tiempo: 5 months to 6 months.
|
The distance measured between the canine cusp tips for each two consecutive digital models superimposed on the right and left medial palatal rugae.
|
5 months to 6 months.
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Amount of canine retraction
Periodo de tiempo: Baseline to 6 months
|
The change in distance measured from the canine cusp tip to the frontal plane, in millimeters; measured on CBCT
|
Baseline to 6 months
|
|
Canine tipping
Periodo de tiempo: Baseline to 6 months
|
CBCT images at T0 and T1 were analyzed using Invivo 5 software.
linear measurements were made from the long axis of the canines (cusp tip to root apex) to FP1 and FP2 for the upper and lower canines, respectively.
|
Baseline to 6 months
|
|
Canine rotation
Periodo de tiempo: Baseline to 6 months
|
The change in the angle between a line connecting the maximum mesial and distal crown convexities and FP1 and FP2, for the upper and lower canines, respectively; measured on CBCT
|
Baseline to 6 months
|
|
Canine root resorption
Periodo de tiempo: Baseline to 6 months
|
The change in the canine length, in millimeters, measured from cusp tip to root apex; measured on CBCT
|
Baseline to 6 months
|
|
First molar anchorage loss
Periodo de tiempo: Baseline to 6 months
|
The change in distance measured from the mesio-buccal cusp tip of the first molar to the frontal plane, in millimeters; measured on CBCT
|
Baseline to 6 months
|
|
Pain score
Periodo de tiempo: baseline to day 1
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
baseline to day 1
|
|
Pain score
Periodo de tiempo: Baseline to day 2
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 2
|
|
Pain score
Periodo de tiempo: Baseline to day 3
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 3
|
|
Pain score
Periodo de tiempo: Baseline to day 4
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 4
|
|
Pain score
Periodo de tiempo: Baseline to day 5
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 5
|
|
Pain score
Periodo de tiempo: Baseline to day 6
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 6
|
|
Pain score
Periodo de tiempo: Baseline to day 7
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 7
|
|
Pain score
Periodo de tiempo: Baseline to day 8
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 8
|
|
Pain score
Periodo de tiempo: Baseline to day 9
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 9
|
|
Pain score
Periodo de tiempo: Baseline to day 10.
|
The patient makes a mark along the Visual Analogue Scale (VAS) scale denoting the severity of pain: 0-100 0= no pain and 100= worst pain imaginable
|
Baseline to day 10.
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Director de estudio: Yehya Mostafa, PhD, Future University in Egypt
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 abril de 2017
Finalización primaria (Anticipado)
1 de junio de 2022
Finalización del estudio (Anticipado)
1 de junio de 2022
Fechas de registro del estudio
Enviado por primera vez
23 de mayo de 2021
Primero enviado que cumplió con los criterios de control de calidad
23 de mayo de 2021
Publicado por primera vez (Actual)
27 de mayo de 2021
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
27 de mayo de 2021
Última actualización enviada que cumplió con los criterios de control de calidad
23 de mayo de 2021
Última verificación
1 de mayo de 2021
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
- Anomalías congénitas
- Enfermedades musculoesqueléticas
- Enfermedades Estomatognáticas
- Enfermedades de los dientes
- Anomalías del sistema estomatognático
- Anomalías de la mandíbula
- Enfermedades de la mandíbula
- Anomalías maxilofaciales
- Anomalías craneofaciales
- Anomalías musculoesqueléticas
- Enfermedades mandibulares
- Maloclusión
- Prognatismo
- Maloclusión, Clase de Angle III
Otros números de identificación del estudio
- 20153110-8-14-2017
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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