Periodontitis has been a chronic inflammatory
disease of the gingiva which eventually result in
periodontal pocket formation with loss of the associated
periodontal ligament and alveolar bone around teeth.
Guided tissue regeneration (GTR), which is often a target
for periodontal treatment, has the ability to promote
periodontal regeneration. The development of the
periodontal attachment is primarily concerned with tissue
regeneration.Based on such concept, guided tissue
regeneration is being utilized to varying degree of success
to restore periodontal defects. In order to remove
epithelium as well as gingival corium from the root and/or
existing bone walls on the assumption that they interfere
with regeneration, barrier techniques have been applied,
using elements like expanded polytetrafluoroethylene,
polyglactine, polylactic acid, calcium sulfate and collagen.
Keywords : Periodontitis , Guided tissue regeneration, Barrier techniques, Regeneration.