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The evaluation of feedback collected from students at the end of the year is very essential for every educational institution. It is important to improve the teaching–learning process and the annual appraisal process. The existing approach utilizes a Likert scale questionnaire, which allows students to express their level of agreement or disagreement with given statements or provide a neutral response. Additionally, the feedback form includes open-ended questions where students can provide textual feedback. This study introduces a Lexicon-based approach to automatically analyze the textual feedback concerning different aspects of teaching. Aspect-based Sentiment Analysis (ABSA) of student feedback aims to identify sentiments expressed toward various aspects of teachers, such as their ability to address student doubts and their overall knowledge. This study explores linguistic characteristics found in sentences, including negation, modifiers and contact shifters. To assess the sentiment of a sentence, the SentiWordNet lexicon is utilized to assign scores to individual words. Based on these scores, the sentence is categorized as either positive, negative or neutral. According to the experimental findings, the Aspect-Oriented Lexicon-Based (AOLB) approach demonstrates superior performance compared to other baseline methods when it comes to accurately scoring sentiment. The approach achieved a high accuracy rate of 94% for the student feedback dataset-I, 74% for the student feedback dataset-II, 55% for laptop reviews and 59% for restaurant reviews in the SemEval 2014 dataset-III. [ABSTRACT FROM AUTHOR]

Background: The platelet-rich fibrin (PRF) has proven an immense role in angiogenesis and epithelization in a wound healing process. The present study aims to ascertain PRF's beneficial role in wound healing after depigmentation surgery. Materials and Methods: A total of 12 systemically healthy controls included were divided into two groups after scalpel depigmentation procedure. PRF was prepared according to Choukroun's standard protocol. Using split-mouth design after depigmentation, one group received PRF membrane, and in second group non-eugenol periodontal dressing was placed. The participants were evaluated for visual analog scale (VAS), healing index (HI) on 3rd and 5th day. Epithelization test using toluidine blue and histological examination employing punch biopsy was done on the 5th day. Results: On statistical scale, VAS, HI, epithelization test, and histological findings were statistically significant in the two study groups. PRF group proved better epithelization test and inflammatory cell infiltration was less in PRF group which confirmed superior wound healing in the group. Conclusion: PRF membrane postdepigmentation provided satisfactory patient comfort and enhanced the wound healing cascade. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study was to evaluate and compare the efficacy of subgingivally delivered Minocycline microspheres and 25% Metronidazole gel when used as an adjunct to scaling and root planing (SRP) in the treatment of chronic periodontitis. Materials and Methods: A randomized, controlled, single center study was conducted involving 60 sites in 20 patients suffering from moderate to advanced chronic periodontitis. Each patient contributed three sites which were randomized to three treatment groups: SRP +insertion of Minocycline microspheres at day 1 (Group A), SRP +insertion of Metronidazole gel at day 1 and at day 7 (Group B), and SRP alone (Group C). Gingival index (GI), plaque index (PI), probing pocket depth (PPD), and clinical attachment level (CAL) were recorded at day 1, 1 month, and 3 months post therapy. Results: All treatments showed significant reductions in PPD and CAL at 1 and 3 months when compared to baseline values (P <0.001). At 3 months, sites treated with minocycline showed an additional reduction in PPD of 0.85 ±0.03 mm, significantly greater than SRP alone. Differences in mean PPD reduction between Group B and Group C and between Group A and Group B were not significant. At 3 months, difference in CAL gain between Group A and C was 0.50 ±0.45, which was statistically significant and between Group B and C was 0.35 ±0.11, which was not found to be statistically significant (P =0.20). Differences in relative CAL between Group A and Group B were also not found to be statistically significant (P =0.53). Conclusion: The results concluded that treatment with Minocycline microspheres and Metronidazole gel improve PPD and CAL in patients with periodontitis compared to SRP alone. [ABSTRACT FROM AUTHOR]