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International journal of odontostomatology

versión On-line ISSN 0718-381X

Resumen

PARRA, Marcelo et al. PLA/PGA and its co-Polymers in Alveolar Bone Regeneration. A Systematic Review. Int. J. Odontostomat. [online]. 2019, vol.13, n.3, pp.258-265. ISSN 0718-381X.  http://dx.doi.org/10.4067/S0718-381X2019000300258.

The aim of this research was to perform a systematic review to identify the most frequent uses of PLA/ PGA in alveolar bone regeneration and their results. A study was designed to answer the question: What are the most frequent uses of PLA/PLGA and their copolymers in alveolar bone regeneration?. A systematic search was done on MEDLINE, EMBASE and LILACS from April 1993 to December 2017. The search string used on MEDLINE was: (((polylactic acid) OR PLA) OR PLA-based copolymers) OR PLA blends) OR PLA scaffolds)) AND ((("Bone Regeneration"[Mesh]) OR bone regeneration) OR guided bone regeneration). The search was complemented by a manual review of the references from the articles included. Most of the studies selected were weak and, regarding the most frequent uses of PLA/PGA, 13 studies used it as a resorbable membrane, two as an absorbable mesh, one as an absorbable screw and three as filling material. Based on our results, the authors consider that PLA/PGA requires a delicate relation between the mechanical resistance and the degradation process. PLA/PGA does not interrupt bone regeneration; however, the influence in cellular events related to bone regeneration and later osseointegration have not been identified.

Palabras clave : poly lactic acid poly ethylene glycol; bone substitute; bone grafting.

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