Aim of the Study To evaluate the using of porcine collagen matrix for keratinized tissue augmentation around delayed dental implant.

Primary Outcome:

Peri-implant keratinized mucosal width and thickness following the use of porcine collagen matrix using (Mucoderm®-Botiss gmbh) compared to the gold standard FGG augmentation.

Secondary Outcome:

1. Crestal bone change (CBC)
2. Pocket depth (PD)
3. Bleeding on probing (BOP)
4. Plaque index (PI) PICOT

P: Population:

Patient with suitable ridge dimension for delayed implant placement.

I: Intervention:

Implant insertion followed by porcine collagen matrix soft tissue augmentation

C: Control:

Autogenous FGG

O: Outcomes

• Enhancing keratinized mucosal width and thickness

• Evaluating :

  1. Crestal bone change (CBC)
  2. perimplant Pocket depth (PD)
  3. Bleeding on probing (BOP)
  4. Plaque index (PI)
  5. Modified PES. T: Time A 6 months follow up .

this study aiming to augment KMW with FGG and MUCODERM following apically positioned flap the primary outcomes to measure is KMW and MT

Inclusion Criteria:

• 1- Partially or fully edentulous sites with previous implant placed in posterior maxillary or mandibular areas.

  2- Inadequate keratinized tissue ≤2 3- Patient age ranged from 20 to 45 years old for both genders. 4- Submerged Osteointegrated implants with no sings of inflammation before implant insertion.

  5- Optimal compliance as evidenced by no missed treatment appointments and positive attitude toward oral hygiene.

Exclusion Criteria:

• 1- Smokers 2- Pregnant or lactating female 3- Treatment with any systemic drug that could affect wound healing (ex- corticosteroids ) 4- History of systemic disease affect wound healing ex diabetes 5- Patient with bruxism and parafunctional habits. 6- Limited inter arch restoration space.

after thesis discussion we will decide