AUTOGENOUS PARTICULATED DENTIN FOR ALVEOLAR RIDGE PRESERVATION, A SYSTEMATIC REVIEW

Abstract

Tooth extraction is one of the most widely performed dental procedures. But unless appropriate measures are taken, extraction will lead to unavoidable higher resorption of the alveolar ridge, as well as structural and compositional changes in the overlying soft tissue . The loss of volume during the first three months has been estimated to be approximately 1.67–2.03 mm in height and 5–7 mm in width within the first 12 months, corresponding to approximately 50 % of the original alveolar bone, this being more pronounced on the buccal than on the lingual aspect of the extraction socket In this way, following dental extraction, alveolar ridge morphology may present a discrepancy in bone height between the lingual and buccal plates, which can jeopardize the aesthetic outcome of any dental treatment involving tooth extraction especially in the anterior zone. In order to minimize or prevent this potential drawback, various surgical techniques have been proposed, including regenerative techniques for socket preservation, soft tissue augmentation procedures immediate implant placement, and even the socket shield technique. In this context, alveolar ridge preservation is defined as any procedure performed at the time of or following an extraction that is designed to minimize external resorption of the ridge and maximize bone formation within the socket, thereby maintaining the existing soft and hard tissue envelope and therefore simplifying further treatment procedures .It hasbeen observed that 20.8 % of non-preserved alveoli require treatment by an additional bone graft for subsequent implant rehabilitation, in contrast to only 9.9 % of preserved alveoli.