A 7 year old female patient complains of multiple carious teeth and has the habit of frequent snacking, is fond of chocolates and does not brush twice daily. Intra-oral examination shows grossly carious deciduous mandibular molars and proximal caries with mandibular canines. Which type of finish line was used during the crown preparation in the restored tooth shown in the post-operative radiograph of this patient?

Adequately contoured stainless steel crowns have maintained function and the relationship of the primary teeth in the arch. The gingival margin of the preparation on the proximal surface should  be a smooth feathered edge with no ledge or shoulder present. The stainless steel crown (SSC) is an extremely durable restoration. Children with extensive decay, large lesions or multiple surface lesions in primary molars should be treated with stainless steel crowns. Because of the protection from future decay provided by their feature of full coverage and  their increased durability and longevity, strong consideration should be given to the use of SSCs in  children who require general anesthesia.