Dr. Sangkyu Han

Dr. Sangkyu Han focuses entirely on straightening and realigning smiles. Clear aligner therapy and traditional braces are staples here, along with palatal expanders for younger patients and lingual braces tucked behind the teeth. Three-phase treatment plans guide kids, teens, and adults through every step, while overnight retainers help maintain results once braces come off. Retainer checks keep progress on track between larger adjustments. Walk in at 4660 W College Ave in Appleton. Call (866) 428-2345 for details or directions. The office sits just west of downtown, a quiet block where tree-lined sidewalks meet suburban calm.