Investigating how well a new type of covering for the gums, called periodontal dressing, helps in the healing of wounds on the roof of the mouth

INTERVENTION: Participants are randomly assigned using a sealed envelope method. Two treatment methods will be implemented. The first will involve applying a connective tissues graft (CTG) with a coronally advanced flap (CAF) and managing the donor site in the palatal by suturing, while the second will involve applying the connective tissue graft (GTG) with the Coronally advanced flap (CAF) with applying an adhesive periodontal dressing (Ora_Aid) on the donor site in palatal and over the Flap. CONDITION: Bilateral class I or II of Miller classification of gingival recession. ; Oral Health PRIMARY OUTCOME: 1. Pain using the visual analogue scale (VAS) 0‐100 at 1 week after surgery ; 2. Wound healing assessment (Landry et al., 1988) at 1,2,3,4 weeks after surgery; SECONDARY OUTCOME: 1. Keratinized tissue width measured from gingival margin to mucogingival junction with the help of periodontal probe (UNC 15 probe) at baseline 1 and 3 months; 2. Epithelization test at baseline 1 and 3 months; 3. Relative attachment level measured using (UNC 15 probe) at baseline 1 and 3 month; 4. HEALING INDE X(Huang, Neiva, & Wang, 2005) at baseline 1 and 3 months INCLUSION CRITERIA: 1. Good general health. 2. There are no contraindications to peridental surgery. 3. Complaint of receding gums at least in the upper jaw and/or mandible. 4. All Recessions of class | OR || Miller. 5. The appearance of the Cemantoenamel junction in the teeth that need to cover the root. 6. All patients achieve adequate control of the microbial plaque. 7. All patients are over 18 years old. 8. The patient has not been subjected to any surgery around the tooth in the area to be worked on