Development Disturbance Of Oral And Paraoral Structure Flashcards
What is fibromatosis?
Fibromatosis refers to a group of soft tissue tumours which have certain characteristics in common-
- Absence of cytologic and clinical malignant features
- A histology consistent with proliferation of well differentiate fibroblast
- infiltrative growth pattern
- Aggressive clinical behaviour with frequent local recurrent.
Type of genetic disorder of hereditary gingival fibromatosis?
Autosomal dominant
Characters of gingiva fibromatosis?
Markedly enlarged
Asymptomatic
Non haemorrhage
Nonexudative
What is fibromatosis gingiva
It is a diffuse fibrous outgrowth of the gingival tissues
Clinical features of fibromatosis gingivae?
- it is manifested asa dense, diffuse, smooth or nodular overgrowth of the gingival tissues of one or both arches usually appears at the time of eruption of permanent incisors
- tissue is usually not inflamed but normal or pale and so dense that it prevent the normal eruption of teeth
- Not painful
- not haemorrhage
Histology featured of fibromatosis gingivae?
- similar to that of fibrous hyperplasia
- epithelium thickened with elongated rete pegs ; bulk of the tissue composed of fibrous connective tissue
- bundles of collagen fibers are coarse
- inflammation unrelated/variable
Treatment and prognosis of fibromatosis gingivae
- when toothe eruption is impended, surgical removal of the excessive tissue and exposure of the teeth
- lesions sometimes recurs
- it has been reported that tooth extraction alone will cause the tissues to shrink almost to normal and recurrence an be prevented.
What is retrocuspid papilla?
It is a small elevated nodule located on the lingual mucosa of the mandibular cuspids.
Clinical features of retrocuspid papilla
Soft, well circumscribed, sessile, mucosal nodule, commonly bilateral, located lingual to mandibular cuspid between free gingival margin and mucogingival junction.
Occurrence of retrocuspid papilla?
Common in children-99% from age 8-16yrs; decreasewith age 38%- 25-39yrs 19%-60-80 yrs More common in female than males Commonly occurs bilateral
Histologic features of retrocuspid papilla?
- elevated mucosal tag shopping mild hyperorthokeratosis or hyperparakeratosis with or without acanthosis
- connective tissue highly vascularised and exhibit large stellate fibroblasts ad ocassionally epithelial rests
Treatment of retrocuspid papilla
Normal; regress with age; no treatment
Lists Developmental anamolies of tongue?10
- Aglossia and microglossia
- Macroglossia
- Ankyloglossia
- Median rhomboid glossitis
- Hairy tongue
- Cleft tongue
- Fissured tongue
- Lingual thyroid nodule
- Benign migratory glossitis
- Lingual varices
Aglossia is associated with…?
Malformation of extremities especially in hands and feet
Cleft palate
Dental agenesia
What is th consequence of aglossia?
Lack of muscular stimulus between the alveolar arches-> alveolar arches do not develop transversely and mandible does not grow anterior direction->severe dentoskeletal malocclusion
Macroglossia other names.4
- Enlarged tongue
- Tongue hypertrophy
- Pseudo macroglossia
- Prolapses of the tongue
Congenital syndrome express macroglossia
Beckwith-Wiedemann syndrome
Types of macroglossia?
- True macroglossia
2. Pseudomacroglossia
pseudomacroglossia possible causes?
- Retrognathia
- Acromegaly
- Hypothyroidism
- Small maxilla/ mandible
- Atonia/hypotonia- Down syndrome
- Vitamin deficiency
Treatment of macroglossia?
Surgery to improve articulation, mastication, deglutition, protection of the airway and gustation.
Other name for tongue tie?
Ankyloglossia
What is ankyloglossia?
It exist when the inferior frenulum attaches to the bottom of the tongue and restricts the free movement of the tongue.
Treatment for ankyloglossia?
Frenulectomy
Complication due to ankyloglossia in dental?
Persistent gap between the mandibular incisors.
