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Completed

NCT Number: NCT04631419

Effects of Flapless Laser Corticotomy in Canine Retraction

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

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Key information

Conditions

Dental Malocclusion Bimaxillary Protrusion Malocclusion Stomatognathic Diseases Tooth Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Orthodontic department , Faculty of dentistry , Suez Canal University

Ismailia, Egypt

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Flapless laser corticotomy

Other

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 retraction

Other

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

Primary outcomes

  1. Rate of canine retraction.

    Time frame: 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 outcomes

  1. Canine rotation

    Time frame: 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

  2. First molar anchorage loss

    Time frame: 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

  3. Root resorption

    Time frame: 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

  4. Periodontal condition

    Time frame: 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

  5. Pulp vitality

    Time frame: 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

Sponsors and collaborators

Lead sponsor

Suez Canal University

Other

Registry information

Official study title

Effects of Flapless Laser Corticotomy in Canine Retraction: A Randomized Controlled Trial

Important dates

Study start
2018
Primary completion
2020
Study completion
2020
First posted
Nov 17, 2020
Registry last updated
Nov 1, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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