Effects of Flapless Laser Corticotomy in Canine Retraction

Not Applicable

Completed

• Conditions: Dental Malocclusion; Bimaxillary Protrusion
• Interventions: Other: Flapless laser corticotomy; Other: Canine retraction

• Registration Number: NCT04631419
• Lead Sponsor: Suez Canal University

Brief Summary

This study is conducted to evaluate the effects of flapless laser corticotomy on the rate of canine retraction.

Detailed Description

Not available

Study Timeline

• Study Start: 2018-06-01
• Study First Submitted: 2020-10-30
• Study First Submitted QC: 2020-11-10
• Study First Posted: 2020-11-17
• Primary Completion: 2020-12-01
• Study Completion: 2020-12-30
• Status Verified: 2022-10
• Last Update Submitted: 2022-10-30
• Last Update Posted: 2022-11-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 14

Inclusion Criteria

• Full complement of teeth with no congenitally missing teeth except 3rd molars.
• Minor or no crowding cases requires four premolars extraction, canine retraction & maximum anchorage with bimaxillary dentoalveolar protrusion.
• No history of previous orthodontic treatment
• Clinically healthy patients with no history of drug intake and\or no history for any systemic illness, syndromes, craniofacial deformities.
• Vital teeth with normal periodontium and no root resorption.
• Adequate oral hygiene; probing depth values not exceeding 3 mm across the entire dentition; adequate thickness of the attached gingiva (1-2 mm).
• No radiographic evidence of bone loss.

Exclusion Criteria

• Systemic disease that might have affected bone formation or density, such as osteoporosis, hyperparathyroidism, or vitamin D deficiency.
• Presence of any local or systemic surgical contraindication.
• Extracted or missing permanent tooth/teeth except for 3rd molars.
• Facial asymmetry

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Mandibular flapless laser corticotomy group	Canine retraction	Flapless laser corticotomy will randomly be assigned to one side of the 14 mandibular arches (experimental side) before canine retraction.
Maxillary flapless laser corticotomy group	Flapless laser corticotomy	Flapless laser corticotomy will randomly be assigned to one side of the 14 maxillary arches (experimental side) before canine retraction.
Maxillary flapless laser corticotomy group	Canine retraction	Flapless laser corticotomy will randomly be assigned to one side of the 14 maxillary arches (experimental side) before canine retraction.
Maxillary control group	Canine retraction	Canine retraction will be done on the other side without Laser corticotomy .
Mandibular control group	Canine retraction	Canine retraction will be done on the other side without Laser corticotomy .
Mandibular flapless laser corticotomy group	Flapless laser corticotomy	Flapless laser corticotomy will randomly be assigned to one side of the 14 mandibular arches (experimental side) before canine retraction.

Primary Outcome Measures

Name	Time	Method
Rate of canine retraction.	3 months of canine retraction , distance (mm) moved by the canine distally per month	distal movement of the canine , measurement unit mm divided by time unit month , using scanned digital models

Secondary Outcome Measures

Name	Time	Method
First molar anchorage loss	3 months, assessed immediately before canine retraction and at the end of 3 months of canine retraction	mesial movement of first molar measured in mm , after 3 months of canine retraction using scanned digital models
Periodontal condition	3 months , immediately before canine retraction , and at the end of 3 months of canine retraction	assessed using periodontal probe to measure : probing depth in mm
Pulp vitality	3 months, assessed immediately before canine retraction , and at the end of 3 months of canine retraction	assessed using thermal (Cold ) test , by application of dry cotton sprayed with ethyl chloride
Canine rotation	3 months, assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction	rotation of canine measured in degrees , after 3 months of canine retraction using scanned digital models
Root resorption	3 months , assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction	canine root length measured in mm using cone beam CT scans

Trial Locations

Locations (1)

Orthodontic department , Faculty of dentistry , Suez Canal University; 🇪🇬 Ismailia, Egypt