Periodontitis is a serious gum infection that damages the soft tissue and, without treatment, can destroy the bone that supports your teeth.

Hydroxylated poly methoxy flavones are a combination of naturally occurring flavonoids extracted from the orange peel and exert anti-inflammatory, antibacterial, and antifungal activity however, this extract is poorly soluble and poorly absorbable. In this work, this extract was formulated as a solid dispersion formulation to enhance its biological activity and then incorporated into a gel base and used in the treatment of periodontitis after clinical debridement.

In the study, there are 3 groups; the first one first one received plain sodium carboxymethylcellulose. Group II received chlorhexidine gel. GroupIII received Hydroxylated poly methoxy flavones solid dispersion incorporated into sodium carboxymethylcellulose gel.

In all groups, there is clinical debridement before injection of gels.

Inclusion Criteria:

• Patients with periodontitis stage I-II
• free from any systemic disorders.
• no mobility - non-smokers - no parafunctional habits.
• Each patient with minimum three periodontitis sites ( split-mouth study)

Exclusion Criteria:

• Smokers.
• patients with diabetes, and hypertension.