we have conducted a split-mouth randomized clinical trial to study effects of implant induced micro-osteoperforations on the rate of tooth movement during canine retraction.

The experimental group will receive implant driver facilitated microosteoperforation on one side of the mouth( according to split mouth design) decided by random allocation.

After 3 months of extraction of upper first premolar ( according to planned orthodontic treatment), 3 microosteoperforation will be done with implant in an implant driver distal to canine. Surgical procedure will be done in local anesthesia, no flap will be raised. Alginate impressions will be taken before the procedure and 28 days after canine retraction has started, to measure the difference between rate of canine retraction on both sides. Measurement was done by a digital vernier caliper,

Inclusion Criteria:

• • Male and female

  • Age 18- 45 years
  • Class 2 div 1
  • No systemic disease
  • No radiographic evidence of bone loss
  • No history of periodontal therapy
  • No current active periodontal disease
  • No smoking
  • No gingivitis or untreated caries
  • Probing depth < 4mm in all teeth
  • Gingival index < 1mm
  • Plaque index < 1mm

Exclusion Criteria:

• Long term use of antibiotics, phenytoin,cyclosporine, anti inflammatory drugs, systemic corticosteroids and calcium channel blockers.
• Poor oral hygiene for more than 2 visits.
• Extreme skeletal class 2 malocclusion, overjet > 10mm, anb> 7
• Systemic disease
• Evidence of bone loss
• Past periodontal disease
• Current periodontal disease
• Smoking
• Gingivitis and caries
• Probing depth > 4mm

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