A better understanding of the Science of Dental materials as a subject depends upon theoretical knowledge and its clinical application. The multitude of teaching methodologies in the dental curriculum has been incorporated to determine learning outcomes. Objective: This study aimed to found the perception of BDS second-year students toward the subject of dental materials and evaluate the difficulty in learning and acquisition of concepts in this preclinical year. Methods: This cross sectional study was conducted among 130 students of BDS second year registered with University of Health Sciences, Lahore. Pre-designed questionnaire was used as research tool to determine the students’ perceptions towards teaching methodologies and understanding of dental Materials. Results: Only 53.7% of the students reported DM as an interesting subject. Satisfaction with content was 90% and delivery and pace of the lectures were reported at 79.3%. Majority of the student (86.8%) reported lecture materials easy to understand. The most useful method for learning and understanding this subject is group discussion 76.15%, followed by PowerPoint presentation 73.85%. The favored mode of assessment was MCQs (80%) followed by practical lab 66.93%. To improve learning 82.3% of the students recommended group discussion and integrated teaching method (77.6%). Conclusions: The majority of students found Dental material a difficult subject. A better understanding of this subject needs improvement in already applied teaching methodologies with an integrated teaching mode
Objective: This study aimed to assess in vitro bioactivity of novel remineralizing dental composites loaded with calcium phosphate fillers and chlorhexidine in polypropylene glycol (PPG) resin matrix. Methods: The stock monomer was prepared by adding 69.75% urethane dimethacrylate and 23.25% of the polypropylene glycol dimethacrylate with silica fillers, chlorhexidine (5 wt%), and varying levels of calcium phosphate fillers. The study groups were BC (basic composite), commercial control, CHX-CP5, CHX-CP10, and CHX-CP15, respectively. Bioactivity was assessed by placing samples in the simulated body fluid (SBF) for 7, 14, and 28 days and observed under the scanning electron microscope and energy dispersive X-ray spectroscopy. Data were presented in mean and percentage with a 95% confidence interval. Intergroup analysis was performed using one-way ANOVA and the p-value was set ≤0.05. Results: The SEM images showed the deposition of calcium phosphate on the surface of CHX-CP10 and CHX-CP15 after 28 days in SBF. Mineral deposits of calcium and phosphate were observed on the surface of the experimental formulation containing higher calcium phosphate fillers (CP10 and CP15) in EDX. Conclusion: The addition of calcium phosphate fillers to the composites resulted in an apatite layer formed and demonstrated enhanced bioactivity in the presence of PPGDMA and CHX.
Background and goals: Temporomandibular disorders (TMD) are the utmost communal disorders of the temporomandibular joint and its linked structures. The objective of the study was the epidemiological assessment of Temporomandibular joint disorders and associated factors. Study Design: A descriptive cross-sectional study. Place and Duration: In the Oral and Maxillofacial surgery department of Punjab Dental Hospital, Lahore for one-year duration from January 2021 to December 2021. Methods: This study comprises a sample of 400 young adults aged 15-40 years of age selected by cluster sampling technique. The surveyors finalized questionnaires and conducted clinical trials. The analysis of data was done with the Fisher exact tests and Chi-square. Results: The pervasiveness of Temporomandibular disorders in the considered sample was 43.8%. The most communal symptoms of TMD were muscle tenderness, clicking and tenderness of temporomandibular joint. The utmost common influencing aspects for TMD were clenching, early contact in the bruxism and protrusive movement. There was a clear preponderance of girls (68.6%) over boys (31.4%) (p = 0.001). Conclusion: Symptoms of TMD in adults were common with the apparent preponderance of women. Keywords: Adolescents, Epidemiology, Diseases of the Temporomandibular joints.
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