Background There are no radiographic studies in Nepalese population for determination of sagittal root positioning in maxillary anterior teeth. The sagittal root positioning and root angulation plays a vital role for case selection in immediate implant placement. Objective To evaluate, classify and compare sagittal root position between different maxillary anterior teeth. Method A 2-year retrospective study was conducted on 100 patients (53 males and 47 females) who fulfilled the inclusion criteria using cone beam computed tomographic images. The relationship of root of tooth to its alveolar housing were recorded as Class I to IV. In addition, the root angulation relative to the alveolar process was also measured. Result The sagittal root position (SRP) calculated on six maxillary anterior teeth on average was found to be 87.83% for Class I, 6.67% for Class II, 0.67% for Class III and 5.17% for Class IV respectively. The mean root angulation was found to be higher with canines on both side whereas lateral incisors had lesser mean root angulation. Root angulation of maximum teeth were between 10-20 degrees where immediate implant placement is possible. Conclusion Within the limitations of this study, the sagittal root positioning and root angulation in Nepalese population showed a favorable result for immediate implant placement. Maximum teeth were found to be close to the alveolar process with the exception of few teeth.
BACKGROUND: The Nepal Government imposed two national-level lockdowns to curtail the spread of coronavirus. Schools, colleges, and universities were briefly shut leading students to stay indoors. Change in daily routine, online education and plenty of free time has ultimately led to an increase in use of electronic gadgets like smartphones, laptops, etc. There have not been enough studies to evaluate the usage pattern of electronic gadgets and sleep quality among undergraduate medical students of Nepal before and during the COVID-19 lockdown. Our study aims to evaluate the usage pattern of electronic gadgets and sleep quality among undergraduate medical students before and during the COVID-19 lockdown in Nepal.METHODOLOGY: This cross-sectional study was conducted among 208 undergraduate medical students of Lumbini Medical College, Tansen, Palpa. Participants were requested to fill up an online questionnaire circulated via Viber and Facebook messenger. Gadget usage pattern and sleep quality before and during COVID-19 lockdown were evaluated using Smartphone addiction score-short version (SAS-SV) and Pittsburgh Sleep Quality Index (PSQI) respectively.RESULTS: Of 208 responses which met the inclusion criteria, smartphone addiction was seen 94 (46.30%) respondents with higher number of male addicts (27.59%). Mean time spent in electronic gadgets raised significantly during lockdown compared to pre-COVID phase. 99 (48.77%) respondents had impaired sleep according to PSQI global sleep score. Significant relation was present between most of the components of PSQI with addicts and non-addicts.CONCLUSION: This study is merely a partial snapshot of the present scenario and provides preliminary understanding on smartphone use pattern and sleep quality among medical students from Nepal. It is critical to decrease total screen time and promote sleep quality for the betterment of physical and mental health of the future health care professionals.
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