<prompt> The most reliable criteria in Gustafsons method of identification is:Cementum appositionTransparency of rootAttritionRoot resorption  <response>: B i.e. Transparency of root - Stacks method formula is for age estimation from weight height of erupting teeth in infant and childrenQ. - Translucency or transparency of root is the most reliable criteria in Gustafson method of age estimationQ 