In 30% of cases, there is a skull base fracture
Resinous denture base fracture
resistance: effects of thickness and teeth.
On initial physical exam, the patient demonstrated signs of skull base fracture
, including periorbital ecchymyosis (Figure 1) and hemotympanum.
In the other two models, we evaluated the associations between each parameter and the three types of condylar fractures (condylar head fracture, condylar neck fracture, and condylar base fracture
 Likewise, in this case the coracoid base fracture
was missed on initial radiographs.
Polymethylmethacrylate denture base fracture
is a common clinical problemdue to fatigue or impact forces [4,6].
National Institute for Clinical Excellence (NICE Guideline) now recommends selection of adults for CT scan in minor head trauma when within 1 hour having GCS less than 13 when assessed or GCS less than 15 2 hours after injury suspected open/depressed or skull base fracture
post traumatic seizure focal neurological deficit persistent vomiting or loss of consciousness since injury.
Further data in this regard has been provided by Kiziklilic,  who found that the earliest complete closure of the synchondrosis occurred at the age of 13 years, and if a transverse hypodense zone across the clivus is seen on CT scans in individuals with head trauma who are 13 years of age or older, it is more likely to represent a skull base fracture
than a persistent synchondrosis.
The least common cause of CSF rhinorrhoea is post-traumatic as a complication of a skull base fracture