A 19-month-old spayed female Burmese had recently been treated for epiphora. During that clinical examination, the referring veterinarian noticed moderate gingivitis and calculus accumulation. On referral to CADS, bilateral supernumerary (SN) maxillary fourth premolar teeth were diagnosed (), with associated stage 3 periodontal disease (PD3). SN 108 and SN 208 were positioned palatal to the normal maxillary fourth premolar teeth. The supernumerary teeth were orientated in the same manner as the normal teeth; that is, the mesiobuccal and distobuccal roots were buccally situated and the mesiopalatal root, palatally situated (). PD3 was also diagnosed at 206, 209, 302, 401 and 402, and tooth resorption (TR) at 309 and 409. Closed extraction of 206, 209, 302, 401 and 402 was performed, without elevating a mucogingival flap, while open extractions were performed on SN 108, SN 208, 309 and 409 (), by elevating a mucogingival flap. The SN 108 and SN 208 surgical sites were not sutured closed and were allowed to heal by second intention.
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.