Periodontal problems management is the most important goals of chronic asthmatic patients that adapted to use steroid inhalation for long time. Gram negative anaerobic bacteria are generally suggested as the primary cause of Periodontal problems and mechanical procedure is the treatment approach, which is performed nonsurgical or surgically. The understanding of the role of bacteria in the initiation and progression of periodontal disease has led to great interest in the use of antibiotics to suppress or eradicate pathogenic macrobiotic. Systemic antibiotics have been used in different forms of periodontal disease treatment. Systemic antibiotics can penetrate soft tissues and may target invasive organisms, can be used to treat multiple sites simultaneously, and may also affect reservoirs of bacterial reinfection such as saliva, the tonsils, and the oral mucosa. However, there may be problems associated with the use of systemic antibiotics such as the development of resistant bacteria, and potential side effects (hypersensitivity reactions, gastrointestinal discomfort, etc.). so in this study we aimed at To evaluate the effect of chitosan nanoparticle spray in management of dental problems in asthmatic patients receiving corticosteroids inhaler that support the growth of bacteria in periodontal area.

Inclusion Criteria:

• Age from 18-50 years old
• Both sex male and female
• Patients diagnosed as Asthmatic
• Patients treated with corticosteroids inhaler or ( beta2-adrenergic agonist inhaler or nebulizer for their symptoms)

Exclusion Criteria:

• Patients treated with other medication
• Patients not diagnosed as asthmatic
• Comorbidity