Translation of OHIP-CP questionnaire in Hindi language will be done. Patients recruited will undergo clinical examination and recording of periodontal parameters (Pocket probing Depth and Clinical Attachment Loss) will be recorded to determine stage and grade of periodontitis. Patients will be given OHIP-CP Hindi questionnaire. Content Validity and Construct validity of Hindi translated OHIP-CP questionnaire will be done using appropriate statistical measures. Reliability of the OHIP-CP Hindi questionnaire will be checked for Internal consistency using Cronbach alpha for whole and subscales of OHIP-CP.

Inclusion Criteria:

• ≥18 years of age
• able to understand and complete questionnaires independently
• confirmed diagnosis of periodontitis as defined by the 2017 World Workshop classification.

Exclusion Criteria:

• Patients with systemic diseases such as acquired immunodeficiency syndrome or diabetes mellitus,
• pregnancy
• patients who require prophylactic antibiotic coverage prior to dental treatment,
• patients with bleeding disorders,
• patients had received non-surgical periodontal therapy within the preceding eight weeks.

Patients with periodontitis