ABSTRACT
Dental tissues play a very Important role for forensic purposes, because it is the hardest of all human tissues and can be preserved for a prolonged duration even subsequent to death, The aim of the this study was to determine the ABO blood grouping from the pulpal tissue of extracted teeth and to correlate the same with blood group details obtained from the study subjects. This descriptive cross sectional study was conducted on 50 subjects. Blood group was determined on blood which was obtained from blood already taken for Hepatitis screening. To determine association Goodman Kruskal Gamma test was applied between blood sample from dental pulp and control in SPSS 20.0. Out of total participants, 29[58%] were females and 21[42%] were males. The mean age was 25.56+/-5.17 years, ranging from 18 to 38 years. All the correlation [association] was very high and statistically significant. Overall correlation was very [r=0.99, P=0.00]. The correlation was ranging from 0.87[blood group B] to 1.00 [blood AB and O]. Similarly, the correlation among Rh+ and Rh- was also very high i.e. 0.98 and 0.88 respectively and was statistically significantly. The finidngs of this investigation showed that there is high correlation of the pulpal blood group with venous blood. So the blood group of this population can determined from dental pulp
ABSTRACT
Mixed dentition analysis is carried out to predict the size of unerupted canine and premolar in the developing occlusion. The aim of this study was to assess the applicability of Tanaka and Johnston method of mixed dentition analysis in predicting the size of permanent canines and premolars in patients visiting Islamic International Dental Hospital, Islamabad. The sample consisted of 80 dental casts [40 male and 40 female], obtained from patients reporting at the department of orthodontics, Islamic International Dental College, Islamabad with the age range between 12 to 21 years. Mesiodistal tooth widths were measured with a digital vernier caliper. A paired student t test was used to compare the predicted and actual sum of the maxillary [PUCPM and AUCPM] and mandibular permanent Canines and Premolars [PLCM and ALCPM] for both genders combined and separately. Significant difference was found between PUCPM and AUCPM in maxilla for both male and female together [M + F: 0.000] and when both genders were compared separately [M: 0.032, F: 0.001]. Tanaka and Johnston method was only applicable in predicting the space for unerupted canine and premolars in mandible in both male and female sample