Speed of Premolar Extraction Space Closure: Healed vs Recent Extraction Site

Study Overview
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Brief Summary
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The aim was to compare the rate of teeth movement into fresh and old extraction sites.

Detailed Description
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Trial design: Randomized controlled clinical trial with a split mouth design. Setting: Jordan University of Science and Technology(JUST) Postgraduate Dental Teaching Clinics and labs. Participants and interventions: Twenty-eight subjects with bimaxillary proclination requiring extraction of all first premolar teeth participated in this study. In the lower arch, two groups were also identified; group 1 having the first premolar extracted before the commencement of orthodontic treatment and group 2 having the first premolar extracted just before space closure when 0.019 x 0.025 inch SS archwire was reached. Patients were followed-up monthly for three months. At every follow-up visit lower alginate impressions were taken. Extraction spaces in the lower arch follow-up models were measured using digital caliper. The rate of extraction space closure in the lower arch was assessed monthly.

Official Title
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Speed of Premolar Extraction Space Closure: Healed vs Recent Extraction Site- A Prospective Randomized Clinical Trial

Conditions
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Orthodontic Appliance

Intervention / Treatment
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* Device: Space closure into old extraction space
* Device: Space closure into recent extraction space


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age ≥ 16 years Proclined upper and lower incisors (Ui/max >115 o, Li/mand >99o) Mild upper and lower arch crowding (<4mm) or no crowding Need for upper and lower first premolars extraction Skeletal I malocclusion (1<ANB <5) Average lower facial height and maxillomandibular plane angle (22 o <MM<32 o) Class I canine relationship Good oral hygiene and healthy periodontium Exclusion Criteria: Poor oral hygiene Diseases and medications that were likely to affect bone biology Previous orthodontic treatment Evidence of bone loss Active periodontal disease Smoking

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 30 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Space closure into old extraction space
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Healed extraction site<br>Old Extraction Space | Device: Space closure into old extraction space<br>* Lower first premolar extraction space was closed using elastic power chain and 0.019X0.025 Stainless steel archwire into healed bony socket<br>|
| Experimental: unhealed extraction site<br>Recent Extraction space | Device: Space closure into recent extraction space<br>* Lower first premolar extraction space was closed using elastic power chain and 0.019X0.025 Stainless steel archwire into fresh bony socket<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Amount of space closure | Width of extraction space will be measured in millimeters | 3 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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recent, healed, extraction space