Objective: To assess the relationship of oral pathologies associated with second molars to the patterns of adjacent impacted third molar. Methodology: A cross sectional descriptive study was conducted on 385 Orthopantomograms (OPG) of patients. The study was conducted in the Institute of Dentistry, CMH Lahore Medical College, Lahore, Sharif Medical and Dental College (SMDC) and Services Institute of Medical Sciences (SIMS) over a period of three months from December 2020 to February 2021. The Pell and Gregory classification was used for depth of third molar impaction and ramus relationship of mandibular third molars. Winter`s classification was used for classifying the angle of impaction. Results: The association between presence of caries (p=≤0.001) and external resorption (p=≤0.001) in second mandibular molar with depth of impaction of adjacent an impacted third molar, ramus relationship of third molar with presence of external root resorption in second molar (p=≤0.001) and presence of caries (p=0.005), periapical radiolucencies (p=0.009) and external root resorption (p=≤0.001) in second molar with the angle of impacted third molar were significant. The association of presence of caries, pericoronal, periapical radiolucencies and external root resorption in the maxillary second molars with the depth and angle of adjacent impacted third molars was not significant. Conclusion: The carious lesions were the highest where the third molar had class A depth of impaction while the maximum external resorption was seen where the third molar had class C depth of impaction. Second mandibular molars adjacent to impacted third molars in class 2 ramus relationship had the most external root resorption. It was seen that second molars adjacent to the impacted third molars with mesioangular impactions had the highest percentage of caries and periapical radiolucencies while those adjacent to third molars with horizontal angle of impaction showed the maximum external root resorption. Keywords: Second molars, impacted third molars, pericoronal radiolucency, periapical radiolucency, external root resorption, caries

To assess the knowledge and practices of dental practitioners regarding informed consent. METHODOLOGY: A descriptive cross-sectional study was conducted on 150 dentists at the College of Dentistry, Sharif Medical and Dental College, Lahore from June 2019 to June 2020. A pre-validated questionnaire was used. Mann Whitney U test was performed to find the statistical difference in the knowledge and practice scores across the gender and place of practice of dentists and the Kruskal Wallis test for scores across the years of clinical experience and qualification of dentists. RESULTS: The mean practice score was significantly different across levels of qualification (p=0.032) but not across years of practice (0.366). There was no significant difference in the mean knowledge score across years of practice (p=0.744) and levels of qualification (p=0.366). The highest mean score among knowledge questions was seen for the questions which inquired if informed consent should be taken before treatment. The highest mean score among practice questions was seen for the question which inquired if dentists obtained informed consent from parents before treating children.   CONCLUSION: The mean knowledge score for females was higher in comparison to males and was the highest in dentists with an experience of greater than 10 years. Most dentists were aware of the concepts, types and processes of informed consent and the importance of taking the patient`s consent before treatment. Taking informed consent from patients before treatment, keeping it as part of their record and taking parents’ consent before treating children were practiced.