Many studies have been reported on radiographic lesion sizes of periapical lesions. However no studies have been reported on prevalences of subjective radiographic features in these lesions except for the early assumption that a periapical cyst usually exhibit a radiopaque cortex. This study is conducted to evaluate the prevalences of several subjective radiographic features of periapical cysts and granulomas in the hope to identify features that maybe suggestive of either diagnosis. The results showed that a regular (circular or semi-circular) radiographic outline is likely to be a periapical cyst while an irregular radiographic outline is not indicative of either a cyst or a granuloma. The association between the regular/irregular radiographic outline and the type of periapical lesion was found to be statistically significant (p less than 0.001). The associations of two other radiographic features and the type of periapical lesion were found to be just statistically significant (p less than 0.01). These features are the symmetry/asymmetry of the radiolucency in relation to the apex and the funnel-shaped/angular-shaped extension of the radiolucency. The widely accepted criteria that the possession of a radiopaque cortex surrounding the radiolucency can discriminate between a periapical cyst and granuloma cannot be statistically supported in this study.
The aim of this study was to determine the profile of patients referred to a specialist oral medicine and oral pathology unit in Kuala Lumpur by reviewing clinical dental records received in Oral Pathology Diagnostic Service (OPDS) in Faculty of Dentistry, UKM from 2001 until 2010. A total of 547 archival biopsy clinical dental records were reviewed and analysed using SPSS version 17.0. Oral and maxillofacial diseases were frequently seen in female (1.3:1), young adults (30.0%) of Malay ethnicity (64.6%). Most of the acquired specimens were from dental specialists (n=451, 84.8%), particularly from oral and maxillofacial surgeons (OMFS) (n=349, 63.8%) compared to general dental practitioners (GDPs) (n=81, 14.8%). Almost all of the biopsy specimens were of soft tissue origin (n=462, 84.4%), derived from lining mucosa (n=197, 36.0%) and were biopsied excisionally (n=325, 59.4%) more often than by incisional biopsy (n=207, 37.8%). A large proportion of the oral and maxillofacial diseases were of reactive (n=188, 34.4%) and inflammatory (n=121, 22.1%) cause. Tumours are mainly benign (n=69, 12.6%) with only small cases are malignant (n=34, 6.2%). The most common histological diagnoses were accounted by mucocele (n=56, 10.2%), pyogenic granuloma (n=47, 8.6%), fibroepithelial polyp (n=38, 6.9%), radicular cyst (n=33, 6.0%) and periapical granuloma (n=29, 5.3%). This study characterizes the clinical profile of patients seen in our oral medicine and oral pathology unit. Present findings can be used as a reference to the clinicians and pathologists in effective patient management and organization in the future.