Comparison of Corticotomy and Micro-Osteoperforation During Canine Retraction
Study Details
Study Description
Brief Summary
Corticotomy and micro-osteoperforation (MOP) have been proven to accelerate tooth movement and shorten orthodontic treatment time, compared to conventional treatment. MOP is less invasive; however, it is unclear whether it is as effective as a corticotomy. The purpose of this study was to compare the maxillary canine retraction achieved by these techniques.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
Thirteen patients (5 females, 8 males; mean age, 18.07±6.74 years) with healthy permanent dentition requiring the extraction of maxillary first premolars were included in a split-mouth randomized clinical trial. Subjects with previous orthodontic or endodontic treatment of canines were excluded. At least 3 months post-extraction, MOPs, and corticotomies were performed distal to the canines. Mini-screws with closed-coil springs (150g) were used for canine retraction. Dental casts were attained at baseline (T0) and 3 months post-intervention (T1). Calibrated examiners measured the distances from the canine to the second premolar on both sides. A Signed-rank sum test was used to compare canine retraction achieved in 3 months (T0-T1) in two sides
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Active Comparator: Corticotomy A full-thickness labial mucoperiosteal flap was reflected. Two vertical corticotomies (1 mesial and 1 distal to the canine) were performed . The cortical bone was cut 2 to 3 mm below the alveolar crest towards the apex until bone marrow was exposed. Cortical-cancellous bone grafts (0.5cc; PuraGraft, Kingwood, TX) were placed at the corticotomy sites. The mini-screws were placed. A nickel-titanium (NiTi) closed-coil spring was placed and secured with a 0.014"SS ligature wire at the canine and mini-screw. A Dontrix gauge (Orthopli Corp., Philadelphia, PA) was used to measure the force (150g). |
Procedure: Corticotomy
A full-thickness labial mucoperiosteal flap was reflected. Two vertical corticotomies (1 mesial and 1 distal to the canine) were performed. The cortical bone was cut 2 to 3 mm below the alveolar crest towards the apex, until bone marrow was exposed.
Cortical-cancellous bone grafts (0.5cc; PuraGraft, Kingwood, TX) were placed at the corticotomy sites.
The mini-screws were placed. A nickel-titanium (NiTi) closed-coil spring was placed and secured with a 0.014"SS ligature wire at the canine and mini-screw. A Dontrix gauge (Orthopli Corp., Philadelphia, PA) was used to measure the force (150g)
|
| Experimental: Micro-Osteoperforation MOPs were performed with a stainless-steel manual drill tip that had 1.6mm diameter with an adjustable depth set to 5mm (Excellerator® RT; Propel Orthodontics, Milpitas, CA). Six perforations were made along 2 parallel vertical lines (each line with 3 holes spaced ~2mm apart) distal to the canine and perpendicular to the buccal cortical bone. The mini-screws were placed. A NiTi closed-coil spring was placed and secured with a 0.014"SS ligature wire at the canine and mini-screw. A Dontrix gauge was used to measure the force (150g). |
Procedure: Micro-Osteoperforations
MOPs were performed with a stainless-steel manual drill tip that had 1.6mm diameter with an adjustable depth set to 5mm (Excellerator® RT; Propel Orthodontics, Milpitas, CA).
Six perforations were made along 2 parallel vertical lines (each line with 3 holes spaced ~2mm apart) distal to the canine and perpendicular to the buccal cortical bone.
The mini-screws were placed. A NiTi closed-coil spring was placed and secured with a 0.014"SS ligature wire at the canine and mini-screw. A Dontrix gauge was used to measure the force (150g)
Other Names:
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Outcome Measures
Primary Outcome Measures
- Canine retraction [3 months]
Amount of tooth movement (in mm) attained by the maxillary canines after retracting them
Eligibility Criteria
Criteria
Inclusion Criteria:
- Healthy permanent dentition requiring the extraction of maxillary first premolars with less than 8mm of maxillary anterior crowding
Exclusion Criteria:
- Previous orthodontic or endodontic treatment of the canines
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | UPR Medical Sciences Campus | San Juan | Puerto Rico | 00921 |
Sponsors and Collaborators
- University of Puerto Rico
- School of Dental Medicine
Investigators
- Study Director: Augusto R Elias, DMD,MSD, Assitant Dean of Research
Study Documents (Full-Text)
None provided.More Information
Publications
- Aboalnaga AA, Salah Fayed MM, El-Ashmawi NA, Soliman SA. Effect of micro-osteoperforation on the rate of canine retraction: a split-mouth randomized controlled trial. Prog Orthod. 2019 Jun 3;20(1):21. doi: 10.1186/s40510-019-0274-0.
- Aboul-Ela SM, El-Beialy AR, El-Sayed KM, Selim EM, El-Mangoury NH, Mostafa YA. Miniscrew implant-supported maxillary canine retraction with and without corticotomy-facilitated orthodontics. Am J Orthod Dentofacial Orthop. 2011 Feb;139(2):252-9. doi: 10.1016/j.ajodo.2009.04.028.
- Alikhani M, Alansari S, Sangsuwon C, et al. Micro-osteoperforations: Minimally invasive accelerated tooth movement. Semin Orthod. 2015; 21(3): 162-169.
- Alikhani M, Raptis M, Zoldan B, Sangsuwon C, Lee YB, Alyami B, Corpodian C, Barrera LM, Alansari S, Khoo E, Teixeira C. Effect of micro-osteoperforations on the rate of tooth movement. Am J Orthod Dentofacial Orthop. 2013 Nov;144(5):639-48. doi: 10.1016/j.ajodo.2013.06.017.
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- Cheung T, Park J, Lee D, Kim C, Olson J, Javadi S, Lawson G, McCabe J, Moon W, Ting K, Hong C. Ability of mini-implant-facilitated micro-osteoperforations to accelerate tooth movement in rats. Am J Orthod Dentofacial Orthop. 2016 Dec;150(6):958-967. doi: 10.1016/j.ajodo.2016.04.030.
- Fischer TJ. Orthodontic treatment acceleration with corticotomy-assisted exposure of palatally impacted canines. Angle Orthod. 2007 May;77(3):417-20.
- Frost HM. The regional acceleratory phenomenon: a review. Henry Ford Hosp Med J. 1983;31(1):3-9. Review.
- Leethanakul C, Kanokkulchai S, Pongpanich S, Leepong N, Charoemratrote C. Interseptal bone reduction on the rate of maxillary canine retraction. Angle Orthod. 2014 Sep;84(5):839-45. doi: 10.2319/100613-737.1. Epub 2014 Mar 4.
- Li Y, Jacox LA, Little SH, Ko CC. Orthodontic tooth movement: The biology and clinical implications. Kaohsiung J Med Sci. 2018 Apr;34(4):207-214. doi: 10.1016/j.kjms.2018.01.007. Epub 2018 Feb 3. Review.
- Pandis N, Walsh T, Polychronopoulou A, Katsaros C, Eliades T. Split-mouth designs in orthodontics: an overview with applications to orthodontic clinical trials. Eur J Orthod. 2013 Dec;35(6):783-9. doi: 10.1093/ejo/cjs108. Epub 2013 Feb 1. Review.
- Verna C. Regional Acceleratory Phenomenon. Front Oral Biol. 2016;18:28-35. doi: 10.1159/000351897. Epub 2015 Nov 24. Review.
- UPR MSC IRB B0710118