Cleft lip and palate Cleft lip and palate
Introduction embryonic:
Processus frontalis gives Brozen Onvien, and all the emergence of nose gives the cantilever forget and brutal cantilever.
Natian Aloncian Ilthmon and constitute the middle section of the upper lip, and lateral process gives nose wing. Dock section Average (Natian Aloncian) with bud upper jaw to form the rest of the lip.
* Pathogenesis:
* The failure of fusion Natin Alonvien Alonsien lead to average incision (hare lip).
* The failure of fusion of maxillary process of medial nasal process leads to cleft lip both sides (single or dual side).
* Cleft lip may occur also because of the failure of middle leaflet tissue to penetrate and fill Gutters hominid.
* The bottom Cleft lip occurs as a result of the failure of fusion of the jaw blastomycosis.
* Reasons for the failure of fusion:
* Hereditary: often (defect on the region 1 of the tape on the X chromosome 9 - - X19 )
* Environmental:
- Eating Disorders (lack of or increase in vitamin A It affects the epidermal growth Blindfolded) .
- Alchortizonat (inhibitors for growth and immunity).
- Infections (German measles).
- Alcohol (reduces the amount of blood connecting the fetus).
- Stress and trauma.
* Other factors:
- Poor blood supply.
- Pressure of the tongue (if large size presses on the lip during the docking of the buds that will prevent full docking them).
- Cleft lip either lemon full up of the nose or to be partial, and may be associated with partial or complete incision in the dome of the palate.
- Cleft lip affects the upper lip often and rarely affects the bottom.
Labels
Dentistry