Early Orthodontic Treatment of Dental Crowding

University of Helsinki

Status: Active, not recruiting

Conditions: Dental Crowding

Treatments: Device: Quad-helix

Study type: Interventional

Funder types: Other

Identifiers

NCT04756843

HUS/3102/2020

Details and patient eligibility

About

Aim of the study is to compare treatment duration and effects of orthodontic treatment of dental crowding between treatments started at different stages of mixed dentition phase. The randomized controlled trial study will be conducted in a public health care center.

Enrollment: 60 estimated patients

Sex: All

Ages: 6 to 14 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Dental developmental stage of mixed dentition
• Crowding on both dental arches
• Skeletal discrepancy not suspected

Exclusion criteria

• National criteria for publicly funded treatment not met by the severity of the malocclusion
• Other malocclusions
• Angle Class III relationship of the molars
• Malocclusion related to a syndrome
• Non-compliance to orthodontic treatment

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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60 participants in 2 patient groups

Early treatment

Experimental group

Description:

Treatment started in the early mixed dentition phase

Treatment:

Device: Quad-helix

Late treatment

Experimental group

Description:

Treatment started in the late mixed dentition phase

Treatment:

Device: Quad-helix