COVID-19 evidenced the need for preventive protocols to control its spread worldwide. Therefore, the purpose of this review was to compare the current indications and regulations for the use of personal protective equipment (PPE) in dental care. For the bibliographic search, keywords such as “Containment of Biohazards”, “Personal Protective Equipment”, “dental office”, “COVID-19” were used during the advanced search in Pubmed and academic Google. Forty regulations were obtained that met all the selection criteria for preventive measures through the use of PPE by the operator and the patient; being more detailed the Sanitary Directive 100-MINSA published in 2020 without evidence of updating in this year 2021. Likewise, in studies carried out on the reuse of masks, it was determined that the most effective method was decontamination with UV-C, which maintains their integrit...

 The use of mesenchymal stem cells for bone regeneration in the oral cavity due to its differentiation capacity is part of the most promising scientific advances in regenerative medicine. The knowledge about this cell therapy obtained in recent times has been raising the expectations of health professionals; however there is still much to discover. The objective was to analyze the current evidence on the use of stem cells for guided bone regeneration in the dental field, through the bibliographic search of 30 indexed publications in Spanish and English registered from 2010 to 2020 in the databases: scielo , pubmed and academic google. The results demonstrated its effectiveness in planned bone regeneration in specialties such as periodontics and maxillofacial surgery; however, more research and the search for solutions are still required to facilitate its obtaining, maintenance and culti...