Efficacy of Locally Delivered Tea Tree Oil Gel as an Adjunct to Non-Surgical Periodontal Management

"Tea tree oil 5% gel (Sigma Aldrich® Steinheim, Germany) for local sub gingival application was prepared by the Department of Pharmaceutics, Faculty of Pharmacy.~The gelling agent; Carbopol 940 (1% w/v) was first soaked in distilled water for 2 h then TTO dissolved in an appropriate amount of propylene glycol was added to the Carbopol dispersion. Methyl paraben 0.2% w/v dissolved in preheated water was used as a preservative. The gel mixture was then magnetically stirred for 30 min. Finally, pH was adjusted using 1 N NaOH added dropwise with gentle stirring with a spatula until the desired pH value (6.5-7) was reached. The gel was sterilized by autoclaving at 110 °C for 20 min."

Scaling and root surface debridement