This paper summarizes pathology, diagnostic technique and therapy of dental sinusitis.
The case of dental sinusitis is not rare in our field.
Pathology of dental sinusitis is similar to that of acute paranasal sinusitis, however, is different from that of unstable stage of chronic paranasal sinusitis.
Evaluation of its pathological condition is the most important in the management of dental sinusitis.
Although dental sinusitis is usually treated by rhinologists, dental lesion have to be evaluated by rhinologists in close cooperation withdentists.
We classified dental sinusitis into 4 types and each type had characteristic pathology which required special treatment.
Type 1: An independent pathology of the maxillary sinus which is not apparently related to a dental disease.
Type 2: Dental maxillary sinusitis in a narrow sense, that is, a dental lesion followed by maxillary sinusitis.
Type 3: Maxillary sinusitis which is followed by dental diseases.
Type 4: Those cases with advanced pathology of both maxillary sinusitis and dental disease where time of onset is not known as to which disease preceded the other.
Even with severe inflammatory condition, most cases in type 1 to 3 usually improve by conservative treatments while the cases in type 4 are necessary to be treated surgically.
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