• 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.

Common types

Hawley retainer. This type of retainer is the best-known and the most common. Its structure consists of metal loops anchored on an arch that sits in the palate and is made of acrylic. A more recent and aesthetic version of this device replaces the front metal wire with a clear one called ASTICS.

Essix retainer. Essix is a transparent retainer that fits over the entire arch of teeth. Made of polypropylene or polyvinylchloride (PVC) material, the Essix is a vacuum-formed retainer, or VFR. The manner of its manufacture allows the Essix retainer to favorably sit on the surface of the palate because it does not allow the upper and lower teeth to touch as plastic covers the chewing surfaces of the teeth.

Fixed retainers. Unlike other retainer types, fixed retainers cannot be removed by the patient. They are bonded by wire to the tongue side of the incisors. Some doctors prescribe fixed retainers where active orthodontic treatments have effected great changes in the bite and there is a high risk for reversal of these changes. The downside of fixed retainers is that wearing them over an extended period may lead to tartar build-up or gingivitis due to the difficulty of flossing while wearing these retainers.

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.