Periodontitis is a chronic inflammatory disease of the periodontal tissues (periodontium) which surround and support the teeth. that results in attachment loss and alveolar bone destruction leads to ultimate tooth loss. It is caused by the bacteria present in dental plaque. which is a tenacious substance that forms on teeth and gingiva just after teeth are brushed. https://www.markbroyard.com/special-deal-ornamental-onion-allium-summer-beauty-for-cheap-flash-choice/