back to contentsClinical Analysis of 521 Jaw Cysts
Kimihiro Suzuki, Yukiko Hoshina, Tamio Nakajima
First Department of Oral Maxillofacial Surgery, Schoolof Dentistry, Niigata
University
(Chief: Prof.Tamio Nakajima)
Abstract:
@Incidence,sex,age,chief complaint and location of 521 histologically confirmed jaw cysts treated in the First Department of Oral and Maxillofacial Surgery were studied using the classification proposed by Fukuyama et al.
@Radicular cysts showed the highest incidence (49.3%), which was followed, in order of frequency, by postoperative maxillary cysts(20.7%), dentigerous cysts (13.0%), primordial cysts (10.8%), nasopalatine duct cysts(3.8%) and simple bone cysts (2.3%). The male to female ratio was 1.6:1 and with the exception of simple bone cysts, the male predominance was observed in all cysts. The peak incidence was in the 4th decade and 75% of the population
were in the 3rd to 6th decades. Local swelling was the most common chief complaint. Swelling and/or pain accounted for 83.6% of the complaints, but the cysts were asymptomatic and discovered radiographically in 24% of the patients.The site of predilection was the maxillary incisalregion(39.4%), which was followed by the maxillarymolar region(29.9%), mandibular molar region(24.7)and the mandibular incisal region(6.1%).
@The classification proved to be quite useful forthe analysis of jaw cysts.