Endoscope-assisted Flapless Approach Versus Papillary Preservation Technique in Periodontal Regeneration.

Exclusion Criteria

• •Pre-study period
• •* Any systemic condition which prevents following the study protocol;
• •* Any systemic condition which may affect healing outcomes of patients, e.g. uncontrolled or poorly controlled diabetes, unstable or life-threatening conditions or those requiring antibiotic prophylaxis;
• •* Patients under long-term analgesic medication;
• •* Current smokers;
• •* Self-reported pregnancy;
• •* Systemic antimicrobial therapy within 3 months;
• •* Teeth that concurrently present with a buccal and a lingual intrabony defect component;
• •* Tooth with hopeless prognosis or questionable prognosis associated with endodontic lesions, or subgingival restorations that preclude clinical measurements, or excessive uncontrolled mobility;
• •* Any factors which prohibit regular performance of plaque control around surgical sites;
• •* Inadeduate oral hygiene with full mouth plaque score \>25%
• •* Furcation involved surfaces
• •During study period -Non-compliance with study protocol