• Trenton Call: (734) 675.1170 | Fax: (734) 675.0688
  • Wyandotte Call: (734) 282.4100 | Fax: (734) 282.5420
en English es Español
Established 1955

Welcome to our health education library. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.


There are basically two types of space maintainers: fixed and removable.

Fixed Space Maintainers

  • Unilateral space maintainers are fitted on just one side and usually replace just one tooth. It can be constructed in a band-and-loop or a crown-and-loop type. It can also be a distal-shoe type that is inserted under the gums. This latter type of maintainer is used when a child loses the baby tooth and the 6-year molar has not emerged.
  • Bilateral space maintainers are normally cemented with bands on back teeth on both sides connected by a wire just behind the lower incisors.

Removable space maintainers are similar in construction to orthodontic retainers and can be fitted alone by the wearer. This type of space maintainer works better in older children because it requires closely following directions on care and maintenance.

Custom-made and -fitted Just like braces, retainers, dentures and other dental appliance space maintainers are custom-made and fitted by a dentist or orthodontist to the patient. In making a fixed space maintainer, a metal band is placed around one of the teeth next to the space, and impressions are made. This allows the dental technician to make a copy of the teeth to use in making the space maintainer. The band is also removed and sent to the dental laboratory with the impressions. The lab creates the space maintainer and sends it back to the child's dentist. The dentist cements it into place.

For a removable space maintainer, the dentist first makes impressions and then sends them to a lab, which makes the appliance.

Patient Reviews

Of the people whose smiles I admire, I have asked 1 common question. "Who was your Orthodontist!" Overwhelmingly the answer has been Dr Lupini. That is inarguably the Greatest testimony for his work and the results that you also will receive!

Read more

Get in Touch

Mon-Fri offers alternating 7:30-4:30, or 12-6pm appointments.
Please call our office to verify daily hours. We can be a little flexible to meet your needs.


Established 1955

John Lupini, DDS, MS, is the director of True Orthodontics, which specializes in early orthodontic treatment, teeth straightening, Invisalign alternatives, and treats children and adults. True Orthodontics serves all of the downriver communities including but not limited to Southeastern Michigan, Wayne County, Monroe County, Macomb County, Oakland County, Downriver, Trenton, Grosse Ile, Woodhaven, Trenton, Riverview, Wyandotte, Melvindale, Ecorse, River Rouge, Detroit, Taylor, Westland, Garden City, Lincoln Park, Allen Park, Dearborn, Dearborn Heights, Romulus, Belleville, Huron Township, Van Buren Township, Flat Rock, Rockwood, Gibraltar, Brownstown, Monroe, Frenchtown, Newport, Carleton, Southgate and surrounding communities.