1. Paras LG, Rapp R, Piesco NP, Zeichner SJ, Zullo TG (1993) An investigation of accessory foramina in furcation areas of human primary molars.. Part 1: SEM observations of frequency, size and location of accessory foramina in the internal and external furcation areas. J Clin Pediatr Dent 17:65–69
2. Messer LB, Cline JT, Korf NW (1980) Long term effects of primary molar pulpotomies on succedaneous bicuspids. J Dent Res 59:116–123
3. Ringelstein D, Seow WK (1989) The prevalence of furcation foramina in primary molars. Pediatr Dent 11:198–202
4. Wrbas KT, Kielbassa AM, Hellwig E (1997) Microscopic studies of accessory canals in primary molar furcations. ASDC J Dent Child 64:118–122
5. Moss SJ, Addelston H, Goldsmith ED (1965) Histologic study of pulpal floor of deciduous molars. J Am Dent Assoc 70:372–379