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This study is conducted to evaluate the effects of flapless laser corticotomy on the rate of canine retraction.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Maxillary flapless laser corticotomy group | Experimental | Flapless laser corticotomy will randomly be assigned to one side of the 14 maxillary arches (experimental side) before canine retraction. |
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| Maxillary control group | Active Comparator | Canine retraction will be done on the other side without Laser corticotomy . |
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| Mandibular flapless laser corticotomy group | Experimental | Flapless laser corticotomy will randomly be assigned to one side of the 14 mandibular arches (experimental side) before canine retraction. |
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| Mandibular control group | Active Comparator | Canine retraction will be done on the other side without Laser corticotomy . |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| 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. |
| Measure | Description | Time Frame |
|---|---|---|
| Rate of canine retraction. | distal movement of the canine , measurement unit mm divided by time unit month , using scanned digital models | 3 months of canine retraction , distance (mm) moved by the canine distally per month |
| Measure | Description | Time Frame |
|---|---|---|
| Canine rotation | rotation of canine measured in degrees , after 3 months of canine retraction using scanned digital models | 3 months, assessed at the beginning of treatment (base line ), and at the end of 3 months of canine retraction |
| First molar anchorage loss |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Abubakr R Bakr, Msc Assistan lecturer | Faculty of dentistry , Suez canal university , Ismailia , Egypt | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Orthodontic department , Faculty of dentistry , Suez Canal University | Ismailia | Egypt |
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| Label | URL |
|---|---|
| Acceleration of canine movement by laser assisted flapless corticotomy \[An innovative approach in clinical orthodontics | View source |
| Evaluation of piezocision and laser-assisted flapless corticotomy in the acceleration of canine retraction: a randomized controlled trial | View source |
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| ID | Term |
|---|---|
| D008310 | Malocclusion |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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The 14 patients maxillary and mandibular arches will be allocated into a split-mouth design, so the sample will be set up each patient to act as his/her own control
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single-blind
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| 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 |
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mesial movement of first molar measured in mm , after 3 months of canine retraction using scanned digital models |
| 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 | 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 | 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 | 3 months, assessed immediately before canine retraction , and at the end of 3 months of canine retraction |