The congenital form, teratologic or non-reducible dislocation occurs as part of more complex conditions.The condition can be bilateral or unilateral:

If both hip joints are affected, one speaks of "bilateral" dysplasia. In this case, some diagnostic indicators like asymmetric folds and leg-length inequality do not apply. In unilateral dysplasia only one joint shows deformity, the contralateral side may show resulting effects. In the majority of unilateral cases, the left hip has the dysplasia.If the joint is fully dislocated a false acetabulum often forms (often higher up on the pelvis) opposite the dislocated femoral head position. In acetabular dysplasia, the acetabulum (socket) is too shallow or deformed. The center-edge angle is measured as described by Wiberg. Two forms of femoral dysplasia are coxa vara, in which the femur head grows at too narrow an angle to the shaft, and coxa valga, in which the angle is too wide. A rare type, the "Beukes familial hip dysplasia" is found among Afrikaners that are members of the Beukes family. The femur head is flat and irregular. People develop osteoarthritis at an early age. Causes
Hip dysplasia is considered to be a multifactorial condition. That means that several factors are involved in causing the condition to manifest.The cause of this condition is unknown; however, some factors of congenital hip dislocation are through heredity and racial background.
Dental abscess—A dental abscess is a collection of pus that accumulates in teeth or gums as a result of bacterial infection, giving rise to a severe throbbing pain at the site of the abscess. It is caused by consuming sugary or starchy food and poor dental hygiene and is treated by a dentist by draining the pus and, possibly, removing the infected tooth/teeth altogether. See also
Oral medicine
Oral and maxillofacial pathology
Tongue disease

References
External links

"10 dental myths exploded". NHS Choices. Retrieved 2013-12-30. "Oral Health". National Institute of Dental and Craniofacial Research. Retrieved 2013-12-30.