title: Comparison of coconut water, propolis, HBSS, and milk on PDL cell survival.
abstract: Coconut water is biologically pure and sterile, with a rich presence of amino acids, proteins, vitamins, and minerals. The purpose of this study was to use a collagenase-dispase assay to investigate the potential of a new storage medium, coconut water, in comparison with propolis, Hank's balanced salt solution (HBSS), and milk in maintaining viable periodontal ligament (PDL) cells on simulated avulsed teeth. Seventy freshly extracted human teeth were divided into 4 experimental groups and 2 control groups. The positive and negative controls corresponded to 0-minute and 8-hour dry times, respectively. The experimental teeth were stored dry for 30 minutes and then immersed in 1 of the 4 media (coconut water, propolis, HBSS, and milk). The teeth were then treated with dispase grade II and collagenase for 30 minutes. The number of viable PDL cells was counted with a hemocytometer and analyzed. Statistical analysis showed that coconut water kept significantly more PDL cells viable compared with propolis, HBSS, or milk. Coconut water can be used as a superior transport medium for avulsed teeth.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College, Maduravoyal, Chennai, India. hi_gopikrishna@hotmail.com
authors.forename: Velayutham
authors.initials: V
authors.lastname: Gopikrishna
authors.forename: Parvinder Singh
authors.initials: PS
authors.lastname: Baweja
authors.forename: Nagendrababu
authors.initials: N
authors.lastname: Venkateshbabu
authors.forename: Toby
authors.initials: T
authors.lastname: Thomas
authors.forename: Deivanayagam
authors.initials: D
authors.lastname: Kandaswamy
mesh_terms: D000818:Animals; D002417:Cattle; D002470:Cell Survival; D003059:Cocos; D010450:Endopeptidases / Q000378:metabolism; D005638:Fruit; D006801:Humans; D007552:Isotonic Solutions; D008892:Milk; D010513:Periodontal Ligament / Q000166:cytology*; D028321:Plant Preparations; D011429:Propolis; D014021:Tissue Preservation / Q000379:methods*; D014084:Tooth Avulsion
chemical_list: C072670:Hanks Balanced Salt Solution; D007552:Isotonic Solutions; D028321:Plant Preparations; D011429:Propolis; D010450:Endopeptidases