Eighteen participants will be recruited.
Included participants will be:
- Gender: Male and Female
- Age: >20 years
- Have RT1 and RT2 gingival recession
Exclusion criteria:
-
Medically compromised
-
History of certain medications
-
Pregnant females
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Periapical involvement in selected teeth
-
History of periodontal surgery involving experimental teeth
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If the problem was due to orthodontic treatment
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Interventions: Participants will be divided into two groups, group A (test group) and group B ( control group).
Pre-surgical phase (including supragingival scaling and root planning) will be carried out to both groups, followed by oral hygiene instructions.
Then, Participants will be explained about each procedure. 7
For group A (test group):
Inverted periosteal pedicle flap will be carried out as follows according to Shetty 2014:
Patients will be explained about the procedure. Non-surgical phase will include supragingival scaling and root planning, followed by oral hygiene instructions.
The surgical procedure will be carried out three weeks after non-surgical phase as follows:
- Horizontal incisions will be made perpendicular to the adjacent papillae at the level of the cement-enamel junction (CEJ) preserving the gingival margin of the affected teeth.
- Sulcular incisions on the buccal/facial aspect of the involved teeth.
- Vertical incisions extending beyond the mucogingival junction will be made at the line angles of the distal most and the mesial most teeth.
- A partial thickness flap will then be elevated till an adequate amount of periosteum is exposed.
- A horizontal incision will then be given at the apical extent of the periosteum where it is still attached to the bone.
- The periosteum will then be separated from the underlying bone and reflected coronally to an extent where it is still attached to the bone.
- The reflected periosteum will then be inverted such that the cambium layer covers the denuded root.
- Once the periosteum is in place, it is sutured and secured.
- The reflected partial thickness flap will be coronally advanced such that it covers the periosteum and will be sutured using a sling suture.
- The vertical incision will be sutured using an interrupted suture. 8
For group B (control group):
Coronally advanced flap with subepithelial connective tissue graft will be carried out; an envelope flap design will be used according to Zucchelli & De Sanctis 2000 as follows:
- An intrasulcular incision will be performed involving at least one tooth mesial and at least one tooth distal to the teeth with gingival recessions.
- Oblique incisions will be traced at the interdental soft tissue level to achieve a coronal rotation of the surgical papilla.
- The flap will be then raised up to the mucogingival junction (MGJ) with a periosteal elevator and mobilized with a sharp horizontal periosteal incision beyond the MGJ.
- Exposed root surfaces will be carefully treated with gentle root planing.
- The anatomic interdental papillae will be carefully de-epithelialized.
- The split-full-split thickness flap will be then passively positioned above the CEJ of the involved teeth and interrupted or sling sutures were positioned to achieve optimal buccal flap adaptation.
- The connective tissue graft will be harvested from the palate using the trap door technique (Langer & Langer 1985), adapted to cover each exposed root about 1 mm beyond the CEJ, and stabilized with resorbable sutures.
- The flap will be then coronally sutured using sling or interrupted sutures.
Post-surgical protocol (Pini-Prato et al.,2010 and Cairo et al., 2016) :
Participants for both groups will be instructed to:
- Intermittently apply an ice bag for the first 4 hours.
- Take ibuprofen 600 mg at the end of the surgical procedure and will be instructed to take another tablet 6 h later and additional doses if needed.
- Avoid any mechanical trauma and tooth-brushing for 3 weeks in the surgical area.
- Smokers will be reminded to quit smoking during the trial time (6 months).
- Chlorexidine rinses will be prescribed twice daily for 1 min. seven days after the surgery.
- Sutures will be removed and prophylaxis will be performed. 9
- About 3 weeks after surgery, patients will be instructed to resume mechanical tooth-cleaning.
Follow up strategy:
Patients will be recalled after 3and 6 months after surgery.