The present study assess some cephalometric measurements of the soft tissue profile in order to observe the behavior of facial convexity in patients with Class I, Class II division 1, and Class III malocclusions. METHODOLOGY: 102 Pre-treatment cephalometric radiographs of patients attending orthodontic OPD. Ages 16-45 years (mean age of 17.6 years) were selected for this study. They were divided into 3 groups, Class I, class II and class III, using ANB value of (Steiners analysis). Soft tissue cephalometric values of angle of convexity, H.SN angle, nasolabial angle, mentolabial angle and linear measurements of upper and lower lip to S line was measured by a single observer. Inter group and inter gender comparison of all the variable were done. RESULTS: The result showed significant differences amongst the three groups in mentolabial angle , H.SN angle, upper lip to S line and lower lip to S lines.

Objectives: To determine normal mandibular linear values in three vertical groups, to compare right and left side to highlight a prevalent pattern towards mandibular asymettry. Methods: This is a descriptive cross sectional study in which pre-orthodontic treatment panoramic radiographs and lateral cephalograms of 224 patients (between 18 to 34 years) undergoing treatment in Orthodontic Department of Bahria University Medical and Dental College were used and traced on an acetate sheet. There were 74 patients in high angle,76 and 78 in low angle and normal angle group respectively based on their vertical growth pattern using SNMP angle. Condylar height (CH) and Ramal height (RH), and condylar plus ramal height (CH+RH) measurements were done as previously described by Habets. Results: There was no statistically significant difference between the three groups as determined by one way ANOVA. Condylar height and Gonial angle showed statistically significant difference when right and left side was compared, with increased values on the right side. Conclusion: There was no statistically significant difference in condylar, ramal, and total asymmetry index between different vertical groups. Between the right and left sides, condylar height and gonial angles were significantly increased on the right side. However, Ramal height showed no significant difference. Ramal index has a strong linear correlation with total asymmetry index. doi: https://doi.org/10.12669/pjms.38.5.5294 How to cite this:Habib M, Ahsan T, Majeed O, Faheem F. Vertical growth pattern as a determinant of mandibular asymmetry. Pak J Med Sci. 2022;38(5):---------. doi: https://doi.org/10.12669/pjms.38.5.5294 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

No abstract

To investigate the association between palatal canines and sella bridging as well as to establish the type of calcification of sella common to subjects with impacted canines. METHODOLOGY: The sample included male and female patients aged above 12 years, presenting to the orthodontic OPD of Bahria University Medical and Dental College for fixed or removable orthodontic treatment the sample was 105 divided into subjects (34) and control (71) groups. The control group included patients having normally erupted canines while subjects included at least one palatally impacted canine. The presence of impacted canines was confirmed on OPG while sellae dimensions were measured on lateral cephalometric radiographs. Data was analyzed and factors such as sella dimensions (length, depth and diameter) as well as degree of calcification and its relation to presence of palatally impacted canines was determined by using Chi square test, independent sample t test as well as Pearson correlation test. RESULTS: The mean interclinoidal distance and sella diameter was reduced in subjects as compared to controls. Type II calcification was dominant in both experimental (76.5) and control (78.9) groups. There was a significant negative correlation found amongst subjects and controls using Pearson correlation. The strength of association was higher among subjects as compared to control group. CONCLUSION: Sella bridging is an indicator of palatal impaction of canines as the length and diameter of sella were reduced in experimental subjects. Type II calcification was dominant in subjects as well as control groups.

No abstract