Microscopic Examination of Oral Sinus Tracts and Their Associated Periapical Lesions,
ARMY INST OF DENTAL RESEARCH WASHINGTON DC
Pagination or Media Count:
Microscopic examination of 30 sinus tracts revealed that 100 were lined with epithelium at the surface mucosal interface. Twenty of thirty 67 sinus tracts did not have epithelium deeper than the surface mucosal rete ridges. The remaining extension of the sinus tract was lined with granulomatous tissue. Ten of thirty 33 sinus tracts had epithelium extending down the tract to the periapical lesion. The periapical inflammatory lesions that the sinus tracts communicated with were microscopically diagnosed as abscesses, granulomas and cysts.
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