Background: Most common localized reactive lesions of oral cavity are focal fibrous hyperplasia, pyogenic granuloma (PG), irritational fibroma, peripheral giant cell granuloma (PGCG), peripheral ossifying fibroma (POF), fibro-epithelial hyperplasia/polyp, inflammatory fibrous hyperplasia and inflammatory gingival hyperplasia. Clinically, these reactive lesions often present diagnostic challenges because they mimic different groups of pathologic processes. The aim of this paper is to document the occurrence, distribution of clinical features of reactive lesions of oral cavity in 15 years of clinical practice in Raichur, Karnataka. Materials and Methods:This study is a retrospective archival review of 530 cases of focal reactive lesions of the oral cavity. The cases for inclusion in this study were PG, PGCG, POF, irritational fibroma, fibro-epithelial hyperplasia/polyp, inflammatory fibrous hyperplasia and inflammatory gingival hyperplasia. Clinical data of each patient such as age, gender, location, and treatment were retrieved from the records. Results: Inflammatory gingival hyperplasia was the most prevalent lesion and followed by PG. The age ranged from 7 to 63 years, with a mean age of 40.5 years. 261 cases were males and 269 cases were females. Male to female ratio being 1:1. With the exception of PG and inflammatory gingival hyperplasia, all reactive lesions were more common in males. Gingiva with 470 cases was the most frequent site of reactive lesions, followed by buccal mucosa and palate. Conclusion: Reported results on the age, gender, and location of the individual types of lesions are not consistent in different studies. Some of the differences may be attributed to the geographic or ethnic factors. Nevertheless, there is need for more epidemiological studies to establish a better and adequate program to educate general population. Inaddition an early diagnosis and elimination of such lesions may minimize possible dentoalveolar complications.

Background: In the literature, there is no data for the study done to compare lip prints and palatal rugae with blood groups. Correlating lip prints and palatal rugae with blood groups may be valuable in forensic science in precise identifi cation of an individual than by means of lip prints or palatal rugae only. The present study was carried out to establish the allocation of diff erent lip print patterns and palatal rugae among the subjects having diverse ABO and Rh blood groups in Karnataka and Kerala population. Materials and Methods: The study sample consisted of 100 subjects, which included 50 Kerala and 50 Manipuri subjects in the age group of 17-21 years. All the individuals' lip prints, palatal rugae and blood groups were studied. Statistical comparison between the groups was done using the Chi-square test or Fisher's exact test for small samples. Results: Type 2 was found to be the predominant lip print pattern (45%) in both the populations. The major rugae shape in both the populations was wavy pattern and less commonly curved and straight. Left side of the palate showed relatively more number of rugae. Blood Group A showed highest Type 3 lip print, B showed Type 2 pattern, AB showed Type 1 and Type 3 patterns and O showed Type 2 patterns. In blood Group A, curved palatal rugae were predominant whereas, in blood Group B, AB and O wavy patterns were predominant. Conclusion: In the present study, it is noted that there is no association between lip prints and blood groups. However, comparison of palatal rugae with blood groups showed a statistically signifi cant diff erence. Thus, our present showed a correlation between palatal rugae and blood groups.

Enamel hypoplasia (EH) is restricted to ectodermal disturbance, associated to alterations in the organic enamel matrix which can source the white fl ecks, narrow horizontal bands, lines of pits, grooves and discoloration of the teeth altering from yellow to dark brown. Enamel defects have been connected with a broad spectrum of etiologies together with genetic and epigenetic factors such as local, systemic and environmental factors. In our case EH involves all the permanent canines, which are found to be uncommon. Hence, we report a rare case of enamel hypoplasia.