Effects of Flapless Laser Corticotomy in Canine Retraction

N/ACompletedNCT04631419

Suez Canal University14 enrolled

Overview

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

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Dental Malocclusion Bimaxillary Protrusion

Interventions

Flapless laser corticotomyOTHER

The flapless laser corticotomy will be done by Er, Cr: YSGG laser as a series of circular holes will be made along with the planned position. The depth of laser cutting will be measured and controlled continuously during the operation by the periodontal probe with stopper read to each 3mm depth in addition to a few parts of a millimetre depth into the medullary bone to enhance bleeding. Canine retraction will be started after this procedure.

Canine retractionOTHER

canine retraction will be done on 17x25 stst archwire using coil spring adjusted to 150 gm, and miniscrews will be used as an indirect method of anchorage reinforcement

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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

Locations (1)

Orthodontic department , Faculty of dentistry , Suez Canal University

Ismailia, Egypt

Outcomes

Primary Outcomes

Rate of canine retraction.

distal movement of the canine , measurement unit mm divided by time unit month , using scanned digital models

Time frame: 3 months of canine retraction , distance (mm) moved by the canine distally per month

Secondary Outcomes

Canine rotation

rotation of canine measured in degrees , after 3 months of canine retraction using scanned digital models

Time frame: 3 months, assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction

First molar anchorage loss

mesial movement of first molar measured in mm , after 3 months of canine retraction using scanned digital models

Time frame: 3 months, assessed immediately before canine retraction and at the end of 3 months of canine retraction

Root resorption

canine root length measured in mm using cone beam CT scans

Time frame: 3 months , assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction

Periodontal condition

assessed using periodontal probe to measure : probing depth in mm

Time frame: 3 months , immediately before canine retraction , and at the end of 3 months of canine retraction

Pulp vitality

assessed using thermal (Cold ) test , by application of dry cotton sprayed with ethyl chloride

Time frame: 3 months, assessed immediately before canine retraction , and at the end of 3 months of canine retraction

Data from ClinicalTrials.gov

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