The present research deals with preparation and evaluation of aceclofenac dental pastes containing extracted dillenia fruit gum (DG) for periodontitis treatment. Dental pastes containing 1% w/w aceclofeanc were prepared with/without using extracted DG as a mucoadhesive polymer via conventional trituration method. The drug contents, viscosities and pHs of these dental pastes were observed within the permissible ranges. The tube extrudability and tube spreadability of these pastes containing extracted DG were found favorable. The in vitro aceclofenac release from all these dental pastes was found slower sustained over 6 h, which followed zero-order kinetic model (R 2 = 0.9917-0.9988) with super case-II transport mechanism (n = 1.00-1.03). The in vitro aceclofenac release was found decreased with the viscosity increment of these dental pastes. These aceclofenac dental pastes containing extracted DG demonstrated excellent mucoadhesion onto excised porcine buccal mucosal membrane, which can be beneficial to get intimate contact with the action site during and after application to uphold the constant release of drugs over prolonged time. These dental pastes containing 1% w/w aceclofeanc can be applied for effective management of dental pain and inflammation with local delivery in the treatment of periodontitis.