Technical note: RP Atlas–an unprecedented proposal for a Brazilian population dental development chart based on the London atlas.

Age estimation methods through developmental atlases are simplified by image comparison using radiographs. Atlas‐based methods have been utilized to create population‐specific charts addressing population diversity. To tackle the absence of a dedicated atlas for the Brazilian population, the objective of the present study was to create a new atlas for dental development in Brazil based on the London Atlas chart. The new atlas (RP Atlas) is based on the median of tooth development, eruption, and resorption in individuals aged 5 to 23. The sample (567 individuals) was divided between females (n = 290) and males (n = 277). The RP Atlas was handcrafted, scanned, colored, and clustered in two atlases divided by sex. The development of a specific atlas for the Brazilian population has the potential to enhance the accuracy of age estimation in forensic scenarios, notably in a mixed country like Brazil. Further research is needed to assess the suitability of the newly developed atlas for the Brazilian population. Research Highlights: Atlas development methods provide a more straightforward image comparison using OPGs.Methods for age estimation need to be adaptable to a population‐specific approach.RP Atlas is Brazil's first specific atlas of tooth eruption and development.From 18 years old onwards, dental development has unstable patterns. [ABSTRACT FROM AUTHOR]