This study is to find out in which group of patients under braces treatment, the teeth moves fast when removal of teeth done before or during correction of crooked teeth.

Comparative evaluation of rate of extraction space closure between early and delayed therapeutic 1st premolar extraction in bimaxillary protrusion patients using mini implants. A Randomized Controlled Trial - NIL

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2024/09/074009

Enrollment

Registered

2024-09-18

Start date

Unknown

Completion date

Unknown

Last updated

2024-10-14

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

Conditions

Health Condition 1: K088- Other specified disorders of teethand supporting structures

Interventions

Intervention1: Delayed Extraction group: Extraction of 1st premolars after initial levelling and aligning (T1 approx 6-8 months) Control Intervention1: Early extraction group: Extraction of 1st premol

Eligibility

Inclusion criteria

Inclusion criteria: 1.Class 1 bi-maxillary protrusion without any impacted teeth in maxillary and mandibular anterior region. 2.Cases requiring extraction of both maxillary and mandibular first premolar 3.Little’s index for crowding: 1- 3 mm (minimal crowding) 4.Adult patients 18-35 years of age, both male and female. 5.Patients with periodontally sound dentition. 6.Patients with good general health.

Exclusion criteria

Exclusion criteria: 1.Skeletal/Dental class II malocclusion 2.Skeletal/Dental class III malocclusion 3.Poor oral hygiene 4.Smoking

Design outcomes

Primary

Measure	Time frame
Rate of extraction space closure in early and delayed extraction of 1st premolarsTimepoint: 20 months	—

Secondary

Measure	Time frame
To assess Root resorption of maxillary anterior teeth pre-treatment and post-retractionTimepoint: 20 months;To assess Tooth angulation of maxillary incisor teeth pre-treatment and post-retractionTimepoint: 20 months	—

Countries

India

Contacts

Public ContactDr N Kurunji kumaran

Government Dental College and Hospital, Cuddalore

drkurinchi@yahoo.com9865835965

Outcome results

None listed

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