Table 2.

Description of dentin pretreatment materials

Material	Manufacturer	Description
2.5% Chitosan	Sigma Aldrich, USA	2.5 g of low molecular weight Chitosan was dissolved in 100 mL of 1% acetic acid
15% Neem	The Indian Neem Tree Company, India	15 gr of Neem leaf powder was added to 100 mL sterile distilled water and was filtered after 24 hours
15% Tulsi	Herbal Heals, India	15 gr of Tulsi leaf powder was added to 100 mL sterile distilled water and was filtered after 24 hours
2% Aloe vera	Nasim Faraz, Iran	20 mg Aloe vera powder (Nasim Faraz, Iran) to 100 ml sterile distilled water
2% Chlorhexidine	Consepsis, Ultradent, USA	2% Chlorhexidine gluconate solution