Aug 1, 1981

The incidence of dentinal tubules containing more than one process in the cuspal dentin of cat canine teeth

The Anatomical Record
G R Holland


The incidence of multiple processes within the tubules of the cuspal dentin of the cat's canine has been measured by counting directly from ultrathin sections examined in the electron microscope. The incidence is highly variable. The greatest incidence was found 1 mm below the cuspal dentino enamel junction where up to 75% of tubules in some areas contain more than one process. On average 33.6% of the tubules at this level contain multiple processes. The incidence declines linearly toward the apex with virtually no multiple processes occurring at 4 mm below the tip dentino enamel junction or beyond. Half of the "second processes" contain either mitochondria and/or vesicles. They are restricted to predentin where many of them end and to inner calcified dentin. Their distribution is similar to that described for nerve fibers in other studies. None of the processes participated in specialized junctions.

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Mentioned in this Paper

Nerve Fibers
Body Surface Area Formula for Dogs
Electron Microscopy
Dog family
Vesicle (Morphologic Abnormality)
Dental Enamel

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