title: Electric pulp tester conductance through various interface media.
abstract: A conducting media is necessary when using an electric pulp tester (EPT). The objective of this study was to observe differences in conductance through various media. We hypothesized that variations in current conductance through different media exist. The pulp chamber of a freshly extracted premolar was exposed, and the cathode of a voltmeter was inserted into the pulpal tissue. The anode was coupled to the EPT handpiece. The measurement taken during dry (no interface media) EPT tip-to-tooth contact was 0 V, which served as negative control. EPT tip directly touching the cathode measured 3.9V and served as positive control. A number of media readily available in the dental office were tested. Data was analyzed using single factor ANOVA. Listerine (3.3) conducted the most voltage (p<0.5). Of nonliquids, K-Y Brand UltraGel and Crest Baking Soda & Peroxide Whitening Tartar Control toothpaste recorded significantly (p<0.05) higher voltage readings (1.4 V).
authors.affiliation: Department of Endodontics, School of Dental Medicine, Case Western Reserve University, Cleveland, OH 44106-4905, USA. axm69@case.edu
authors.forename: André K
authors.initials: AK
authors.lastname: Mickel
authors.forename: Kimberly A D
authors.initials: KA
authors.lastname: Lindquist
authors.forename: Sami
authors.initials: S
authors.lastname: Chogle
authors.forename: Jefferson J
authors.initials: JJ
authors.lastname: Jones
authors.forename: Francis
authors.initials: F
authors.lastname: Curd
mesh_terms: D001641:Bicuspid; D002482:Cellulose / Q000031:analogs & derivatives; D003791:Dental Pulp Test; D003802:Dentifrices; D004338:Drug Combinations; D004553:Electric Conductivity; D005782:Gels; D005990:Glycerol; D006801:Humans; D009067:Mouthwashes; D010578:Petroleum; D010710:Phosphates; D011409:Propylene Glycols; D012459:Salicylates; D013729:Terpenes; D014867:Water; D014885:Waxes
chemical_list: D003802:Dentifrices; D004338:Drug Combinations; D005782:Gels; C042973:K-Y jelly; D009067:Mouthwashes; D010578:Petroleum; D010710:Phosphates; D011409:Propylene Glycols; D012459:Salicylates; D013729:Terpenes; D014885:Waxes; D014867:Water; C057473:Listerine; D002482:Cellulose; D005990:Glycerol