Spinal stenosis is the narrowing of spaces in the spine (backbone) which causes pressure on the spinal cord and nerves. About 75% of cases of spinal stenosis occur in the low back (lumbar spine).
Both static and dynamic measurements can be taken. Static coefficient of friction (SCOF) is the frictional. resistance one pushes against when starting in motion. Dynamic coefficient of friction (DCOF) is the frictional resis-. tance one pushes against when already in motion. For SCOF and DCOF, a slip occurs when pushing off with more.
Dentigerous or follicular Cysts (DC) are cysts that involve an. odontogenic epithelial origin and are due to developmental alterations. They are the most frequent type (10%) after radicular cysts (25%) and. are linked to cases of unerupted teeth. The origin of this type of cyst. lies in the reduced epithelium, as a result of a cystic degeneration of. the remaining enamel organ, generating a fluid accumulation caused.