A. Bennani

Une lésion mandibulaire

0035-1768/

Fusion dentaire bilatérale

see front matter 2011 Publié par Elsevier Masson SAS. 10.1016/j.stomax.2011.02.008 Rev Stomatol Chir Maxillofac 2011;112:319-320 s’étendait des dents 41 à 44 (fig. 1). À la palpation, la consistance était ferme et indolore. Les dents adjacentes étaient saines et vivantes. La radiographie panoramique montrait une image radio-claire uniloculaire homogène mandibulaire antérieure déplaçant les dents adjacentes (fig. 2).

Cas cliniqueKyste odontogène botryoïdeBotryoid odontogenic cyst

INTRODUCTION Tooth fusion is the union of two adjacent germs at any stage of their development. It is a rare phenomenon which can present uni- or bilaterally and affects the maxilla more often. OBSERVATION A male patient, 25 years of age, presented with a bilateral maxillary fusion of tooth 11 and supernumerary tooth 11, as well as teeth 21-22. Retroalveolar images confirmed the bilateral fusion with a bifide crown and a single root for 11 and a bifide crown separated by a central groove with two diverging roots. No esthetic and/or functional impact was noted and no specific treatment was initiated. DISCUSSION Fusion is a dental development anomaly with a relatively weak esthetic and/or functional impact. But some dental lesions can appear, parodontal diseases, a shortened arcade, a delayed tooth growth, an ectopy of permanent teeth, etc. An adapted treatment should be initiated with the aim of separating fused teeth and restoring their functional and esthetic features.

Kyste odontogène botryoïde

INTRODUCTION The botryoid odontogenic cyst (BOC) is a developmental cyst of odontogenic epithelial origin considered as a rare multilocular variety of lateral periodontal cyst (WHO 1992). This cystic lesion site is in the periodontal space of vital teeth. OBSERVATION A 21-year-old woman consulted for a swelling of the anterior maxillary region. The clinical examination revealed bucal swelling extending from the left central incisor to the first left premolar. The mucosa was normal. The adjacent teeth were vital. X-ray revealed a bilocular radiolucency extending between the roots of teeth 21 and 24. The lesion was enucleated, under local anaesthesia via a vestibular approach. Histology was typical of a BOC with cystic spaces lined by squamous epithelium with thickening and clear cells. Forty-eight months after surgery, there was sign of recurrence. DISCUSSION BOC is known to be a recurrent odontogenic cyst. Several cases of multiple recurrences have been reported up to nine years after the initial surgery. Long-term follow-up is thus mandatory.

L’extraction dentaire atraumatique sous biphosphonates

INTRODUCTION The botryoid odontogenic cyst (BOC) is a developmental cyst of odontogenic epithelial origin considered as a rare multilocular variety of lateral periodontal cyst (WHO 1992). This cystic lesion site is in the periodontal space of vital teeth. OBSERVATION A 21-year-old woman consulted for a swelling of the anterior maxillary region. The clinical examination revealed bucal swelling extending from the left central incisor to the first left premolar. The mucosa was normal. The adjacent teeth were vital. X-ray revealed a bilocular radiolucency extending between the roots of teeth 21 and 24. The lesion was enucleated, under local anaesthesia via a vestibular approach. Histology was typical of a BOC with cystic spaces lined by squamous epithelium with thickening and clear cells. Forty-eight months after surgery, there was sign of recurrence. DISCUSSION BOC is known to be a recurrent odontogenic cyst. Several cases of multiple recurrences have been reported up to nine years after the initial surgery. Long-term follow-up is thus mandatory.