OBJECTIVE:The aim of the study was to assess the frequency and to analyze different factors associated with dentine hypersensitivity among the patients visiting the dental outpatient department of Bahria University medical and dental college Karachi. METHODOLOGY:A Cross sectional questionnaire based study was conducted over a period of seven months among 366 patients visiting the dental OPD of Bahria University Medical and Dental College. Survey utilized for this study was adopted from the study conducted by Braimoh and Ilochonwu. All participants answered questions related to knowledge regarding dentine hypersensitivity, factors hurting the teeth, measures taken to reduce the pain and teeth commonly affected. Statistical analysis was done using Chi-square test and descriptive statistics. RESULTS: The frequency of DH was 36% among the surveyed respondents. DH was considerably higher in females as compared to males. A total of 36.6% males and 50.8% females had awareness regarding DH. While 19% male and 17% female patients chewed from one side of mouth. Vigorous brushing of teeth was noted in 16% males whereas brushing for longer duration was identified in 15.3% of females. Maxillary posteriors were most sensitive teeth. CONCLUSION: The frequency of DH among the patients was 36.3% with a predilection for females gender. Cold foods were commonly identified factors for causing sensitivity in teeth. KEY WORDS: Dentine hypersensitivity, Dental patients, Frequency, Cross sectional study. HOW TO CITE: Alam BF, Khan U, Abbasi N, Nayab T. Dentine hypersensitivity and its associated factors: a cross-sectional study conducted on patients visiting dental hospital of karachi, pakistan.

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OBJECTIVE: To identify the various types of dental notation system preferred by students working within the dental hospital and to evaluate the tooth notation methods favored by the different clinical departments in a dental teaching hospital of Karachi. METHODOLOGY: This Cross sectional study was conducted within the dental hospital of Bahria University Medical and Dental College. The survey employed for this study was modified from the study lead by Al-Johany SS. All the qualitative variables are presented as frequency and percentages. Chi-square or Fischer exact test was applied to see the significance P-value < 0.05 considered to be statistically significant. RESULTS: A total of 153 students participated in the study. FDI was commonly understandable tooth Numbering system by 66% (n= 48) of the final year students while 49% (n=39) of the house officers preferred Universal system. For coding primary teeth palmer system was identified, while for permanent dentition FDI was preferred. CONCLUSION: This study clearly highlights that different method for tooth numbering will be used continually by the dental professionals. Realistic approach is to make sure that dental professionals have sufficient knowledge regarding the most commonly used numbering systems and are responsive towards the pitfalls in each system.

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Objectives: This study aimed to evaluate the acceptance of the coronavirus vaccine and the attitude of people residing in the southern part of Karachi, Pakistan. Methods: This web-based cross-sectional research was conducted among the citizens of the southern part of Karachi from Oct to Dec 2021. The survey for the study was adopted and modified from the formerly conducted study by El-Elimat et al, comprising individuals aged more than 18 years of age. Acceptance and predictors of vaccine acceptance were assessed using the Chi-square test and Binary logistic regression. Results: The acceptance rate for the coronavirus vaccine was quite high (87%). Males demonstrated a higher acceptance rate. The older aged individuals (>35 years old) also showed higher acceptance when likened to younger participants (OR = 1.84, 95 CI% = 2.893–1.171, p < .008). Individuals not infected with COVID-19 showed less acceptance towards vaccinations (OR = 0.431, 95CI% = 0.233– 0.799, p < .008). Similarly, respondents believing the COVID-19 vaccine to be a conspiracy were less likely to show acceptance towards the vaccination process (OR= 0.893, 95 CI% = 0.575- 1.387, p= 0. 614). Conclusion: Differences in the acceptance rate between males of older age as compared to younger population and females have demonstrated higher acceptance towards vaccination. Sinopharm followed by Sinovac was the most frequently used to provide immunization to the Pakistani population. Keywords: adverse effects, immunology, Coronavirus, Vaccine