DBOrthodontics_Straight8NickelFreeDB Orthodontics, San Diego, Calif, now offers a nickel free option of its Straight 8 lingual retainer wire for those orthodontic patients who suffer from nickel allergies.

The Straight 8 retainer wire retains the teeth in position at the end of orthodontic treatment.

Measuring 0.028 x 0.008 inches, Straight 8 has a low profile and contours easily to the lingual surface of the tooth, according to the company. In addition, it is compatible with all types of adhesive and cuts easily without fraying.