Green tea contains a variety of bioactive agents with many health benefits such as antioxidant, anti-inflammatory and anti-microbial properties. It has been reported to impart role in oral health by prevention from dental erosion, dental caries, alveolar bone resorption, oral malodor, etc. The health benefits of green tea are mostly related to the flavonoids which are the major components of the polyphenols existing in green tea. This paper reviewed the major oral health benefits of green tea extracts.

Background:Teaching and educating students is one of the most important responsibilities of teachers. Polling from students is an important method to determine indicators for effective teaching. Objectives:The purpose of the current study was to determine indicators of effective teaching from the point of view of dental students of the Dental Faculty of Hamadan University of Medical Sciences. Materials and Methods:In this Cross-sectional study, there were 205 student participants from the dental faculty of Hamadan University of Medical Sciences. The valid and reliable researcher made questionnaire consisted of individual characteristics, teaching methods, knowledge and the power of communication. Data were analyzed by descriptive methods using the statistical package for social sciences (SPSS) v. 13. Results: In the field of knowledge, teaching method, power of communication and individual characteristics the priorities were subject predomination with average of 1.52, clear transmission with the average of 1.80, fair assessment with the average of 4.12 and fluent explanation with the average of 3.42, respectively. Conclusions: Based on the students perspective, the most important aspect of effective teaching was teaching method. Having the ability in the subject clear transmission, being fair and clear communication were the priorities in each aspect. Keywords:Dentistry; Medical Education; Dental Students; Teaching MethodImplication for health policy/practice/research/medical education: As students have critical role in university, promotion of dental education could improve the oral health status of society.Copyright © 2013, Hamadan University of Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. BackgroundAttendants of universities are one of the most valuable and important parts of medical science universities (1). Duties expected of each attendant in these universities are categorized into seven sections: instruction, research, visiting patients, management, professional activities out of the university, personal promotion and civil activity (2). Among these duties, the most important is giving instructions to the students, and its quality influences the improvement of motivation, joy, creativity, efficacy of the attendant and the student (3). If we suppose an education system, which includes programs, methods and supported material for achieving definite instructional goals, a classroom would be a place in which all instructional and teaching programs and all financial, physical and human measurements lead to the success of students in learning knowledge and skills (4). It is obvious that students and attendants are two basic and fundamental parts of an educational system in a classroom (5). One of the major problems in universities education systems is the lack of effective teaching inclinators. Effective teaching ...