Comparision of tooth alignment and pain perception of different sizes of nickle-titanium archwires in the initial phase of fixed orthodontic treatment : randomized clinical trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2016042427577N1

Enrollment

Registered

2017-04-12

Start date

2016-06-21

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

tooth alignment. factors influencing health status and contact with health service

Interventions

Intervention 1: After placement of brackets( 0.022 inch slot, Roth system),0.012 inch nickle titanium archwires will be inserted by elastomeric O'rings (American Orthodontics, USA) in first interventi

Treatment - Devices

After placement of brackets( 0.022 inch slot, Roth system),0.012 inch nickle titanium archwires will be inserted by elastomeric O'rings (American Orthodontics, USA) in first interventional group. The

After placement of brackets( 0.022 inch slot, Roth system),0.014 inch nickle titanium archwires will be inserted by elastomeric O'rings (American Orthodontics, USA) in second interventional group. The

After placement of brackets( 0.022 inch slot, Roth system),0.016 inch nickle titanium archwires will be inserted by elastomeric O'rings (American Orthodontics, USA) in third interventional group. The

Eligibility

Sex/Gender

All

Age

12 Years to No maximum

Inclusion criteria

Inclusion criteria: Inclusion criteria: presence of all permanant teeth except third molars; no quadhelix or other palatal expansion device present; no extraoral appliance; no deep overbite; no use of NSAIDS before study. Exclusion criteria: pervious orthodontic treatment; medical history or craniofacial abnormality; active periodontal disease; skeletal asymmetry; systemic diseases that might affect pain perception, or in therapy for pain conditions; previous incisor extraction; missing of incisors or canine; unwillingness of patient; vertical displacement of incisors more than 3 mm; tooth block out due to crowding.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Tooth alignment. Timepoint: 4, 8, 12 weeks after arch wire substitution. Method of measurement: Caliper/ 0.01 mm.;Pain level. Timepoint: Immedietly, 4, 24 and 72 hours after. Method of measurement: Standard questionnaire.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Aydin Sorabi

Tabriz University of Medical Sciences

ay_sorabi@yahoo.com+98 41 3330 9214

Outcome results

None listed

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