Management of Miller class I & II gingival recession using coronally advanced flap combined with conventional de-epithelialized free gingival graft versus coronally advanced flap combined with abrasive de-epithelized connective tissue graft Null hypothesis: In patients with Miller class I and II gingival recession, there is no difference between coronally advanced flap with conventional de-epithelialized free gingival graft and coronally advanced flap with abrasive de-epithelized connective tissue graft in recession depth reduction.

Inclusion Criteria:

• Age ≥ 18 years.
• Systemically healthy patients.
• Miller's Class I and II recession defects with recession depth ≥ 2mm.
• Presence of identifiable cemento-enamel junction (CEJ).
• Clinical indication and/or patient request for recession coverage.
• Smoking ≤ 10 cigarettes/day.
• Cooperative patients able and accept to come for follow up appointments.

Exclusion Criteria:

• Pregnant females.
• Smoking ˃ 10 cigarettes/day.
• Contraindication for periodontal surgery.
• Patients with poor oral hygiene.
• Recession defects associated with caries or restoration as well as
• Teeth with evidence of a pulpal pathology
• Molar teeth