The Effects of Some Chemicals on Cervix Dentis

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Abstract
The function of the afferent, fibers of the pulp branch of alveolaris mandibularis nerve on stimulation by some chemicals was studied in 26 dogs narcotized with N-methyl-cyclohexenyl-methol-barbituric sodium in a search for valuable and fundamental information relative to the etiology of hypersensitive dentin. The conduction velocity of the afferent nerve resembles that of the A group of cat''s nerves. As stimulating agents, glucose, saccharose, HC1, NaOH, and NaCl were used. Afferent volleys initiated chemically appeared with 50-60% solutions of glucose and saccharose, 10-3 mol of HC1, 10-2 mol of NaOH, and 12% solutions of NaCl, respec-tively, were used. Chemical stimulation on the cervix dentis evoked volleys of discharges for a long time. The conductivity and adaptation mechanism of the system, which consisted of odontoblast and nerve terminal, were discussed.