Fate of developing tooth buds located in relation to mandibular fractures in three infancy cases.
The fate of developing tooth buds located in relation to mandibular fractures was investigated in three infancy cases. Three infants, 2 girls and a boy, aged from 1 year and 5-months old to 2 years and 6-months old, were treated for dislocated mandibular fracture in the symphyseal region by manual reduction and fixation with a thermoforming splint and circumferential wiring under general anesthesia. Fracture healing was uneventful in all cases. A few years later, no obvious deformity of the jaw or malocclusion was observed; however, malformation of the crown was found in one of the permanent teeth on the fracture line in the first case. In the second case, no abnormality was observed in one of the permanent teeth on the fracture line, but the effect on the other tooth could not be evaluated due to abnormality of the tooth probably not related to the injury. In the third case, root formation was arrested in one of the permanent teeth on the fracture line and the tooth was lost early after eruption. The development of tooth buds on the fracture line is not predictable and therefore, should be monitored by regular follow up.
Yamamoto
Kazuhiko
K
Department of Oral and Maxillofacial Surgery, Nara Medical University, Japan. kazuyama@naramed-u.ac.jp
Matsusue
Yumiko
Y
Murakami
Kazuhiro
K
Horita
Satoshi
S
Matsubara
Yuri
Y
Kuraki
Miho
M
Kurihara
Miyako
M
Imai
Yuichiro
Y
Sugiura
Tsutomu
T
Kirita
Tadaaki
T
D001864:Bone Wires; D002675:Child, Preschool; D003481:Cuspid / Q000002:abnormalities; D005260:Female; D005500:Follow-Up Studies; D017102:Fracture Healing / Q000502:physiology; D005671:Fused Teeth / Q000209:etiology; D006801:Humans; D007180:Incisor / Q000002:abnormalities; D007223:Infant; D004204:Joint Dislocations / Q000503:physiopathology / Q000628:therapy; D008297:Male; D008337:Mandibular Fractures / Q000503:physiopathology / Q000628:therapy*; D009805:Odontogenesis / Q000502:physiology*; D013165:Splints; D019228:Tooth Crown / Q000002:abnormalities; D014083:Tooth Germ / Q000254:growth & development*; D014092:Tooth Root / Q000002:abnormalities; D014094:Tooth, Deciduous / Q000002:abnormalities