[Analysis of associated factors for the ectopic eruption of adjacent first permanent molars after stainless steel crown restoration of second primary molars].

Prior to the restoration of second primary molars with stainless steel crowns, evaluating the potential risk of ectopic eruption of the corresponding first permanent molar is essential. This step is particularly important when ectopic eruption is present in the remaining quadrants. When the angle between the long axes of the maxillary first permanent molar and the second primary molar is excessively small, the inclination of the mandibular first permanent molar is extremely large, or the angle between the long axes of the mandibular first permanent molar and the second primary molar is extremely large, the use of stainless-steel crowns should be minimized, or preventive measures should be considered. Special attention must be given to the distal marginal adaptation during stainless steel crown restoration to prevent the formation of steps on the distal surfaces.