Effect of Interceptive Strategies on the Clinical Outcome of Maxillary Impacted Canines

Universitaire Ziekenhuizen KU Leuven

Status: Completed

Conditions: Tooth, Impacted

Treatments: Procedure: Maxillary expansion; Procedure: Extraction of deciduous upper canines

Study type: Interventional

Funder types: Other

Identifiers

NCT05629312

S59030

Details and patient eligibility

About

This study aims to investigate the effect of 3 randomly applied interceptive measures (slow maxillary expansion, extraction of deciduous canines and no intervention) on maxillary canine impaction in patients with early mixed dentition and lack of space in the dental arch. Additionally, these groups are compared with a control group with adequate space. Patients with at least one impacted maxillary canine, presence of deciduous canines and absence of crossbite were included. The canine position is assessed by measuring five variables (sector of the canine cusp, canine to midline angle, canine to first premolar angle, canine cusp to midline distance, and canine cusp to maxillary plane distance) on 2 panoramic radiographs at 0 (T1) and 18 months (T2).

Full description

The detailed information regarding methodology has been entered in following sections

Enrollment: 84 patients

Sex: All

Ages: 7 to 11 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• All patients presenting at the intake consultation of the Department of Orthodontics of University Hospitals Leuven, Belgium from September 2016, with at least one maxillary permanent canine impaction are invited to participate. Canine impaction is diagnosed based on a panoramic radiograph, taken for standard evaluation of dental development and associated pathology. A maxillary canine is considered to be impacted when the canine to midline angle was ≥15° (Alqerban et al. 2014; Warford et al. 2003). Only impacted maxillary canines with incomplete root formation and with persisting deciduous canines are included.

Exclusion criteria

• presence of uni- or bilateral posterior dental crossbite,
• upper permanent canines showing root malformation, ankylosis or fully erupted,
• evidence of root resorption of adjacent teeth, previous orthodontic treatment,
• craniofacial syndromes,
• systemic disease that would impede orthodontic treatment/surgery and recent exposure to radiotherapy.
• large eruption follicles seen on the permanent canines

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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84 participants in 4 patient groups

Maxillary expansion

Experimental group

Description:

All included patients (in all arms) present (at least one) maxillary canine impaction. Patients in this arm present also lack of space in the upper jaw and are treated with maxillary expansion

Treatment:

Procedure: Maxillary expansion

Extraction of deciduous canines

Experimental group

Description:

All included patients (in all arms) present (at least one) maxillary canine impaction. Patients in this arm present also lack of space in the upper jaw and are treated with extraction of deciduous canines

Treatment:

Procedure: Extraction of deciduous upper canines

No intervention

No Intervention group

Description:

All included patients (in all arms) present (at least one) maxillary canine impaction. Patients in this arm present also lack of space in the upper jaw and no intervention is performed

Control

No Intervention group

Description:

All included patients (in all arms) present (at least one) maxillary canine impaction. Patients in this arm do not present lack of space in the upper jaw and no intervention is performed