Periodontitis is defined as an inflammatory disease of the supporting tissues of the teeth caused by specific microorganisms resulting in progressive devastation of periodontal ligament and alveolar bone with pocket formation, recession or both. The damage resulting from periodontal disease manifests in variable destruction of tooth supporting bone.
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.
Last date updated on March, 2021