call us:

Sparta Orthodontic Office

Joseph H. Lohner, DDS, MS, PA

21 Lafayette Road
Sparta, NJ 07871

Phone: (973) 729-9923
Fax: 973-729-0758

Office Hours:
Monday 11:00 am - 6:30 pm
Tuesday 10:00 am - 6:00 pm
Wednesday 9:00 am - 5:00 pm (Admin only)
Thursday ​8:00 am - 5:00 pm


  • “Dr. Lohner is awesome and his staff is great! We always felt welcomed at the office and everyone is always so friendly! Highly recommend him and his staff! Thank you for Jaylan’s beautiful smile!”

    Lourdes V.

  • “The staff went above and beyond! More than generous in working out fees. We are over the moon with treatment results! What a difference from where my daughter started. Wonderful staff and personal attention – it’s been the best experience!”

    Leslie R.

  • “Well organized, well-run office. Everyone is very nice. We like the raffles, and the magic show made it fun! Keep up the good work!”

    Jennifer C.