This document describes fibroma, a benign mesenchymal tumor that is the most common benign soft tissue neoplasm in the oral cavity. It can occur peripherally or centrally, appears well-defined with a normal or pale color, and has a smooth, non-ulcerated surface. Histologically, it is covered by stretched stratified squamous epithelium with flattened rete pegs and can contain hyperplastic fibrous connective tissue, calcifications, or ossifications. When traumatized, it may develop inflammatory cells, vasodilation, and edema. Treatment is conservative surgical excision, with rare recurrence.

2. Mesenchymal
Odontogenic tumors
• Benign mesenchymal tumor
(Benign tumor of
fibrous connective
tissue)
• The most common benign soft
tissue neoplasm in the oral cavity
Peripheral
Central

3. •Well defined
•Normal color of oral mucosa or slightly paler
•Sessile or pedunculated
•Smooth , non ulcerated surface unless traumatized

4. TONGUE Gingiva
Buccal mucosaPalate

5.  Soft or firm in depending on
its cellular or fibrous contents
firm soft

6. stretched St.sq.epithelium
flattening of the rete pegs

7. HISTOLOGIC APPEARANCE OF
FIBROMA

8. THE SURFACE OF THE LESION IS COVERED BY A
LAYER OF STRATIFIED SQUAMOUS EPITHELIUM
WHICH FREQUENTLY APPEARS STRETCHED AND
SHOWS FLATTENING OF THE RETE PEGS.
Hyperplastic
fibrous C.T
stretched St.sq.epithelium
flattening of the rete pegs

9. AREAS OF CALCIFICATION OR EVEN OSSIFICATION
MAY BE DETECTED IN SOME FIBROMAS ESPECIALLY
THOSE OF GINGIVA AND HARD PALATE

10. •WHEN THE LESION IS TRAUMATIZED OR
IRRITATED
Inflammatorycells,vasodilatationand
inflammatoryedema
• MAY DEVELOP FROM PYOGENIC GRANULOMA
•PRESENCE OF FIBROMAS AFFECTS NORMAL
FUNCTIONING AND ESTHETICS
MAY CAUSE SOCIAL AND EMOTIONAL PROBLEMS

11. •Conservative surgical excision
•Recurrence is rare
Treatment

14.  A 40 years old female complain of painless
slowly growing mass in the left side of hard
palate in 4,5 region since 2years
 No history of any traumatic injury, pain or pus
drainage
 Size : 0.5 x 0.5 cm.
 On palpation : slightly
pedunculated – non tender
– didn’t blanch on pressure
–rubbery in consistency

15. Upper left 4,5
Mild horizontal bone
loss with canine, first
and second premolars.
No root resorption or
tooth displacement.
Bone around the
outer limit of the lesion
is normal

16. •Hemoglobin
•Total WBCS count
•Clotting time
Normal
Aspiration wasn’t done
bec. It is solid

17. Complete
stoppage of
tobacco chewing.
Keep good oral
hygiene

18. Excision of the lesion
under L.A with adrenalin
Medications were
prescribed
Patient recall for
evaluation
Fig.5: Excised tissue

19. Healing was
found to be
uneventful
Patient is still
under follow-up
Recall after 15 days

20. stratified squamous epithelium .
bundles of collagen fibers
and fibroblasts
Blood vessels