|Periodontal disease is gum disease. The word Â“periodontalÂ” means Â“around the tooth.Â” Periodontal disease is a chronic inflammatory disease of the gum and tissues that surround and support the teeth. If left untreated, periodontal disease can lead to tooth loss.
Symptoms of periodontal disease include red and swollen gums, persistent bad breath, and receding gums and loose teeth. Smoking, certain illnesses (such as diabetes), older age, and other factors increase the risk for periodontal disease.
High-impact journals are those considered to be highly influential in their respective fields. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.