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Measuring backward movement of upper posterior teeth in orthodontic patients using a new distalizer appliance

Measuring maxillary first molars distal displacement after using a mini-screw supported appliance in class II patients in a before and after trial

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
IRCT
Registry ID
IRCT201302269085N3
Enrollment
30
Registered
2013-07-14
Start date
2013-04-12
Completion date
Unknown
Last updated
2018-02-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic patient with Class II molar relationship. Anomalies of dental arch relationship, Disto-occlusion

Interventions

Distal force will be applied to maxillary first molars using a palatal arch connecting right and left molars. An elastic module and ligature wire will be used for applying 150-200 gm force per side an
Treatment - Devices

Sponsors

Vice chancellor for research and technology, Hamadan University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
13 Years to 35 Years

Inclusion criteria

Inclusion criteria: Inclusion Criteria: Class II molar relation, presence of both maxillary molars on both side and need for distalization in orthodontic treatment Exclusion Criteria: Any craniofacial malformation, maxillary molar root resorption and more than one cusp Class II molar relation.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Distal movement of maxillary molars (mm). Timepoint: After completion of distalization. Method of measurement: Surface laser scanning of maxillary casts before and after trial.

Secondary

MeasureTime frame
Buccal movement of maxillary first molars (mm). Timepoint: After completion of distalization. Method of measurement: Surface laser scanning of maxillary casts before and after trial.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr Amirfarhang Miresmaeili

Hamadan University of Medical Sciences

amirfarhang@yahoo.com+98 81 1823 9064

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026