Infraction is defined as an incomplete fracture (crack) of the enamel without loss of tooth structure. Clinical examination reveals normal gross anatomic and radiographic appearance: however, upon closer examination, craze lines are apparent in the enamel, especially with transillumination. A periapical radiograph of the involved area is taken to rule out root fracture and injuries to the supporting tooth structure. Pulp sensibility testing is recommended in adult teeth to monitor pulpal changes, however, results in primary teeth may be unreliable. Test results may be negative initially indicating transient pulpal damage.
The treatment objective is to maintain the structural integrity of the tooth and pulp vitality. Treatment ranges from observation to application of bonding agent and/sealant to the fractured enamel structure. The prognosis for health of the tooth is usually uneventful.
No follow up is needed unless they are associated with a luxation injury or other fracture involvement of the same tooth.
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