The main aim of this prospective, randomized controlled clinical study is to:

• To evaluate and compare the effect of a combined orthodontic -periodontal treatment protocol versus periodontal treatment alone on osseous and non -osseous parameters in periodontally compromised patients.

All the patients of both the groups will receive a detailed periodontal evaluation and then therapeutic management of patients will be done as per their periodontal requirement. This will include oral hygiene instruction, scaling and root planning and re-evaluation after 2 weeks and periodontal surgical treatment if indicated will be re-evaluated 4-6 weeks. After an observation period of 2 months confirming patient cooperation and their ability to maintain good oral hygiene as well as stability of the periodontal results orthodontic treatment will be started in the test group whereas the control group will be kept on monthly recall for the first 3 months and then every 3 months as per the oral hygiene status requirement of the patient.periodontal charting will be done at every 3 months till finish of treatment and supra gingival scaling will be provided as per requirement in both the groups.Changes in periodontal status in terms of clinical and radiographic parameters will be compared between the groups. cone beam Computed tomography will be taken at the baseline T0 and study end point T2 for assessment of changes in the bone level around maxillary and mandibular teeth

Inclusion Criteria

.• Patient age criteria 20-40 years.

• Periodontally Compromised dentition with moderate to severe periodontitis ≥2 teeth with pocket depth (PD) ≥5 mm and loss of clinical attachment level (CAL) ≥ 4mm. and radiographic bone loss
• Good general health status.
• Malocclusion that needs orthodontic treatment

Exclusion Criteria:

• Systemic illness known to affect the periodontium or outcome of periodontal and orthodontic therapy.
• Patient taking medications such as corticosteroids or calcium channel blockers, which are known to interfere periodontal wound healing or patient on long term NSAID therapy.
• Pregnant or lactating women.
• Smokers(≥5 cigarettes∕ day).
• Noncompliance to oral hygiene measures after Phase I therapy.
• Presence of trauma from occlusion (TFO).
• Patients with aggressive periodontitis