Nasal morphology is the keystone of facial aesthetics. Being the most prominent part of the face, the shape and position of the nose greatly influence the facial profile and nasal soft tissue thickness also plays a vital role in orthodontic diagnosis and treatment planning. Objective: To evaluate the soft tissue nasal morphology in individuals presenting with different skeletal patterns such as skeletal class 1 and skeletal class 2 jaw relationship. Methods: It was Comparative Cross-sectional study conducted in Orthodontics Department of Nishtar Institute of Dentistry for the period of six months (5th Mar 2020 to 6th Jun 2021).  Study sample consisted of Lateral cephalometric radiographs of 65 subjects. Age range of sampled subjects was 19-26 years (mean age 20.93). The sample was divided into two groups on basis of the Skeletal jaw relationship as class-1 and class-2. An Independent t-test was applied for evaluation of the difference in lateral nasal morphology between both groups. Results:  Notable differences were found between skeletal class 1 and skeletal class 2 groups for the prominence of the mandible and Linear distance between soft tissue Pogonion and Pronasale. Considerable differences in measurements of nasal depth, nasofrontal angle, nasal tip projection angle, nasofacial angle and nasomental angle were found. Conclusions: It is concluded that nasal morphology was greatly influenced by not only the underlying skeletal jaw relationship yet other factors e.g., dentition along with soft tissue thickness were also responsible for nasal morphology differences among various skeletal patterns. Gender dimorphism also exists for various nasal features.

Introduction: When the 20th century started Orthodontics was first recognized as a science. The removal or extraction of teeth destroys the ideal esthetics and occlusion, which was the base of orthodontic treatment plans. Edward Hartley Angle and his followers were not supporters of extraction due to this reason. Extreme dental or maxillary protrusion leading to facial deformities could be corrected by dental extraction was supported by Calvin Case who was a strong opponent of the Angle., for mainly analyzing the frequency of use of orthodontic extractions after evaluating the changes in the use of extraction in past years. The frequency of extractions was examined in relation to gender and Angle’s malocclusion classification. Materials and Method: This is a retrospective observational study. It was conducted in Orthodontics Department of Nishtar Institute of Dentistry, from 2015 to 2020. In this study records from 1032 patients who reported to orthodontic department in Nishtar institute of dentistry Multan for fixed orthodontic treatment were taken. For data registration SPSS 20 (IBM Chicago Illinois) was used. Frequency of extractions with regards to gender, skeletal pattern and types of extraction pattern was determined. In order to assess the association among variables Chi square test was applied and a P value of less than 0.05 was considered as significant. Result: In respect of extraction group, 222 (41.3%) were males and 316 (58.7%) were female and whereas in nonextraction group, 83 (16.8%) were males and 411 (83.2%) were females. The difference was statistically significant (p<0.001). The frequency of extraction in reference to Angle’s classification was analyzed, and no significant difference was found (p=0.992). Frequency of extraction was highest in class-II division-I malocclusion, and the lowest frequency of orthodontic tooth extraction was seen in class-II division-II malocclusion. Conclusion: It can be concluded from the results of our study that females had higher frequency of extractions as compared to males. Similarly, class II malocclusion patients had highest frequency while lowest frequency was in Class I malocclusions.