last minute stuff

Question 1

periapical radiolucency on a non-vital tooth

Answer 1

dental (periapical) granuloma, It represents one of two forms of chronic apical periodontitis, the other being the radicular cyst. There is no method by which these two entities can be distinguished clinically or radiographically. Only biopsy can discriminate

Question 2

what are the histopathologic features that charaterize the OKC

Answer 2

1. Keratin in the lumen
2. Parakeratinized stratified squamous epithelial lining
3. lining of uniform width about 6-8 cell layers thick
4. a wavy or corrugated silhouette to the epithelial surface
5. Nuclei in the basal layer are polarized into a tombstone or picket fence arrangement,
6. absence of rete pegs
   - satellite or daughter cysts are common

Question 3

medication/treatment for Aphthous ulcers

Answer 3

Steroids and antibiotics, APHTHASOL, Betamethasone, Temovate, Lindex

Question 4

med/txt for recurrent oral herpes

Answer 4

antiviral meds: Acyclovir ointment or capsules

• Famciclovir, penciclovir
• prodromal stage is best time to start treatment

Question 5

Mixed Radiolucent/Radiopaque Lesions:

Answer 5

• Florid Cemento-Osseous Dysplasia
• periapical cemento-osseous dysplasia
• Chronic Osteomyelitis

Question 6

Deep carious lesion or large restoration
Nonvital tooth
Organisms not virulent, host defenses strong
Reaction of host bone to “wall off” products of inflammation
Lesion of bone, not of tooth

Answer 6

Condensing Osteitis, radiopaque lesion

Question 7

Asymptomatic
Middle-aged African-American females
3 maturational phases (RL, RL with RO foci, RO)
RCT NOT NECESSARY!
BX NOT NECESSARY! Exposure of lesions can result in osteomyelitis superimposed on dysplastic bone

Answer 7

Mixed Radiolucent/Radiopaque Lesions: Periapical Cemento-Osseous Dysplasia

Question 8

what has the same symptoms as hyperparathyroidism, and how is it treated?

Answer 8

Multilocular Radiolucencies: Central Giant Cell Granuloma
hyperparathyroidism
Thorough curettage, surgery
Steroids, calcitonin, interferon alfa 2a

Question 9

• asymptomatic
• area of increasing RO with no known cause
• 90% mandibular pm region
• adjacent teeth vital

Answer 9

Focal Idiopathic Osteosclerosis

-no tx indicated

Question 10

• collection of miniature teeth within fibrous sac

- where is it commonly found

Answer 10

• Compound Odontoma

- anterior maxilla

Question 11

antral pseudocyst

Answer 11

• ovoid, dome shaped soft tissue opacitys arising from floor of antrum
• asmptomatic, no tx indicated
• common in winter

Question 12

heterogeneous RO in verticolinear orientation in soft tissues of neck

• adjacent to epiglottis
• superior or inferior to hyoid bone
• adjacent to C3-C4

Answer 12

Calcified Carotid Atheromata

Question 13

eruption of normal teeth into an abnormal position

-where is it most common?

Answer 13

• Dental Transposition

- most common is maxillary canines and pms

Question 14

what are the most commonly affected teeth for Dens Invaginatus?

Answer 14

permanent lateral incisors

Question 15

what drugs are related to gingival hyperplasia?

Answer 15

• anticonvulsants: phenytoin
• Ca channel blockers: nifedipine
• Cyclosporine
• erythromycin
• oral contraceptives

Question 16

what abnormalities are associated with a nonvital tooth?

Answer 16

dental (periapical) granuloma
radicular (periapical) cyst
condensing osteitis

Question 17

papillon-lefevre syndrome

Answer 17

Palmar-plantarkeratosis

! Aggressiveperiodontitis in both deciduous & permanent dentitions.

Question 18

mixed enamel and dentin

Answer 18

regional odontodysplasia “ghost teeth”

Question 19

bubbly mandibular appearance, developmental, bilateral facial deformities

Answer 19

cherubism