A 6-year-old castrated male Burmese was presented as the referring veterinarian had noted supernumerary teeth on oral examination. On referral, SN 108, SN 308 and SN 408 were confirmed. The SN 408 was shown to have a supernumerary third root on radiographs. The supernumerary root was slender and situated between the mesial and distal roots (). The SN 108 was positioned palatal to the normal 108 () and the SN 308 and SN 408 were positioned lingual to the normal mandibular fourth premolar and molar teeth, causing moderate rotation of the adjacent normal mandibular teeth; 108, 109, SN 108, SN 308 and SN 408 were affected by PD3. Closed extraction was performed at 109. The open extraction technique was used for the extraction of SN 108, SN 308, SN 408 and 108.
A 15-year-old male patient (III-1) from Shanghai visited the department of pedodontics of the Affiliated Stomatology Hospital of Tongji University with a chief complaint of pain in the right posterior mandibular region. The patient's medical and family histories were inconclusive. Patients from this family have had a family history of Gardner syndrome.