Evidence suggests that modified disinfection and mechanical enlargement of the
apical foramen can facilitate pulp-like tissue ingrowth even in teeth with fully
formed roots. In recent years, dentists have used Regenerative Endodontic
Procedures (REPs) to restore vitality and neurovascular function of necrotic mature
teeth. This study aims to distinguish between clinical conditions that provide
predictable outcomes for pulp revitalization/revascularization in mature teeth and
those that are deemed unfavourable. By analyzing the current literature, this work
seeks to define the practical boundaries of REPs in a clinical setting. Studies found
that REPs are indicated for single-rooted teeth, with success rates comparable to
those of traditional Root Canal Treatments (RCTs). They are a highly effective
alternative in arresting external infection-related resorption (EIRR) and internal
infection-related resorption (IIRR). With surgical modifications, it is now possible to
achieve revitalization in autotransplanted teeth. In many cases, complex root canal
anatomy is a contraindication for regenerative procedures due to the threat of
iatrogenic complications during apical preparation. The long-term interaction
between revitalized teeth and orthodontic forces is unpredictable. Some evidence
suggests a risk of late resorption. Using REPs in mature teeth is a reliable treatment
in specific scenarios. It is a predictable treatment for single-rooted teeth and
infection-related resorptions. Regenerative endodontics is a rapidly changing field
that needs attention from practitioners. Recent advancements show potential, but
more studies are required to make this treatment the new standard.
Keywords: pulp revitalization; Regenerative Endodontic Procedures; mature
permanent teeth; root resorption; autotransplantation
