AAPD- Oral Pathology UPDATED ACTUAL Questions and
CORRECT Answers
Radiopaque, well defined well localized non-corticated IDIOPATHIC BONE SCLEROSIS
located at apex of VITAL teeth
No root resorption of teeth displacement
Simple bone cyst (4) NOT a true cyst
Mandible, posterior
NO EFFECT ON SURROUNDING TEETH (HALLMARK)
Lamina dura intact, vital teeth
Replacement of normal bone with fibrous tissue- FIBROUS DYSPLASIA
ORANGE PEEL or GROUND GLASS APPEARANCE OF
BONE
solitary or multiple, asymptomatic
Replacement of normal bone with fibrous and Focal cemnto-osseous dysplasia
cementum-like material, MIXED RL AND RO near apices
of teeth, FEMALES 9:1
Radiolucent, well-defined, corticated, localized to non- RADICULAR CYST
vital tooth
Second primary molars, well-defined radiolucency BUCCAL BIFURCATION CYST
corticated around roots of involved teeth
Radiolucency around unerupted tooth, CONTINUOUS DENTIGEROUS CYST
WITH CEJ, well defined
what are the 2 other things that should be in a differential odontogenic keratocyst (KOT/OKC)
for a dentigerous cyst?
cystic ameloblastoma
main difference between dentigerous cyst to OKC OKC is ABOVE IAN (dentigerous can go blow)
well defined, corticated, radiolucency in maxillary NASOPALATINE DUCT CYST (HEART SHAPED)
anterior between incisors, occasionally causes roots of
incisors to diverge or root resorption
homogenous radiolucent with radiopaque foci ADENOMATOID ODONTOGENIC TUMOR
(snowflakes) area around MAXILLARY CANINES
what are the 3 most common radiographic findings in dentigerous cyst
posterior mandible OKC
ameloblastic fibroma
, homogenous radiolucency, late cortical expansion, may AMELOBLASTIC FIBROMA
cause displacement of teeth, can be multiocular
radiopacity with radiolucencies throughout and thin COMPLEX ODONTOMA (different version of COMPOUND ODONTOMA)
surrounding radiolucency (GOLF BALL)
well defined, radiopacity with thin radiolucent band BENIGN CEMENTOBLASTOMA
within corticated border consistent with apex of tooth,
often PAINFUL but unrelated to vitality of tooth
PERIOSTEAL REACTIONS CAUSING SUNRAY Ewing Sarcoma
APPEARANCE
3 most common radiographic changes in patients with ILL DEFINED RL/RO areas
ALL
DISPLACEMENT OF UNERUPTED TEETH
PREMATURE LOSS OF TEETH
what is the differential for ALL? hypophosphatasia (both have early exfoliation of primary teeth)
Epstein's Pearls vs Bohn's nodules vs Dental lamina Epstein's pearls
cysts/gingival cyst of newborn - arise from EPITHELIUM TRAPPED DURING PALATAL FUSION
- most common location- PALATAL MIDLINE
Bohn's nodules
- arise from EPITHELIUM from development of MINOR SALIVARY GLAND
- location- BUCCAL or LINGUAL surfaces of alveolar ridge (NOT crest) or AWAY
from midline of palate
Dental lamina cyst
- KERATIN filled cyst
- ALVEOLAR CREST (most commonly MAX)
rapid growing mass on ANTERIOR MAXILLA MELANOTIC NEUROECTODERMAL TUMOR OF INFANCY
what is the test? URINE TEST (HIGH urinary excretion of vanillyl- mandelic-acid
congenital epulis- most common location?? ALVEOLAR RIDGE of NEWBORN (most common maxilla, most common females)
most common tumor of infancy?? HEMANGIOMA
what's unique about congenital vascular malformation? even though they are congenital, you are NOT born with them, they develop
sometime after birth
most common are VENOUS
biggest differences (2) between aphthous NO GINGIVITIS in aphthous ulcers
ulcers/recurrent aphthous stomatitis and primary herpes?
aphthous ulcers are rarely on ATTACHED tissue (gingiva, palate)
CORRECT Answers
Radiopaque, well defined well localized non-corticated IDIOPATHIC BONE SCLEROSIS
located at apex of VITAL teeth
No root resorption of teeth displacement
Simple bone cyst (4) NOT a true cyst
Mandible, posterior
NO EFFECT ON SURROUNDING TEETH (HALLMARK)
Lamina dura intact, vital teeth
Replacement of normal bone with fibrous tissue- FIBROUS DYSPLASIA
ORANGE PEEL or GROUND GLASS APPEARANCE OF
BONE
solitary or multiple, asymptomatic
Replacement of normal bone with fibrous and Focal cemnto-osseous dysplasia
cementum-like material, MIXED RL AND RO near apices
of teeth, FEMALES 9:1
Radiolucent, well-defined, corticated, localized to non- RADICULAR CYST
vital tooth
Second primary molars, well-defined radiolucency BUCCAL BIFURCATION CYST
corticated around roots of involved teeth
Radiolucency around unerupted tooth, CONTINUOUS DENTIGEROUS CYST
WITH CEJ, well defined
what are the 2 other things that should be in a differential odontogenic keratocyst (KOT/OKC)
for a dentigerous cyst?
cystic ameloblastoma
main difference between dentigerous cyst to OKC OKC is ABOVE IAN (dentigerous can go blow)
well defined, corticated, radiolucency in maxillary NASOPALATINE DUCT CYST (HEART SHAPED)
anterior between incisors, occasionally causes roots of
incisors to diverge or root resorption
homogenous radiolucent with radiopaque foci ADENOMATOID ODONTOGENIC TUMOR
(snowflakes) area around MAXILLARY CANINES
what are the 3 most common radiographic findings in dentigerous cyst
posterior mandible OKC
ameloblastic fibroma
, homogenous radiolucency, late cortical expansion, may AMELOBLASTIC FIBROMA
cause displacement of teeth, can be multiocular
radiopacity with radiolucencies throughout and thin COMPLEX ODONTOMA (different version of COMPOUND ODONTOMA)
surrounding radiolucency (GOLF BALL)
well defined, radiopacity with thin radiolucent band BENIGN CEMENTOBLASTOMA
within corticated border consistent with apex of tooth,
often PAINFUL but unrelated to vitality of tooth
PERIOSTEAL REACTIONS CAUSING SUNRAY Ewing Sarcoma
APPEARANCE
3 most common radiographic changes in patients with ILL DEFINED RL/RO areas
ALL
DISPLACEMENT OF UNERUPTED TEETH
PREMATURE LOSS OF TEETH
what is the differential for ALL? hypophosphatasia (both have early exfoliation of primary teeth)
Epstein's Pearls vs Bohn's nodules vs Dental lamina Epstein's pearls
cysts/gingival cyst of newborn - arise from EPITHELIUM TRAPPED DURING PALATAL FUSION
- most common location- PALATAL MIDLINE
Bohn's nodules
- arise from EPITHELIUM from development of MINOR SALIVARY GLAND
- location- BUCCAL or LINGUAL surfaces of alveolar ridge (NOT crest) or AWAY
from midline of palate
Dental lamina cyst
- KERATIN filled cyst
- ALVEOLAR CREST (most commonly MAX)
rapid growing mass on ANTERIOR MAXILLA MELANOTIC NEUROECTODERMAL TUMOR OF INFANCY
what is the test? URINE TEST (HIGH urinary excretion of vanillyl- mandelic-acid
congenital epulis- most common location?? ALVEOLAR RIDGE of NEWBORN (most common maxilla, most common females)
most common tumor of infancy?? HEMANGIOMA
what's unique about congenital vascular malformation? even though they are congenital, you are NOT born with them, they develop
sometime after birth
most common are VENOUS
biggest differences (2) between aphthous NO GINGIVITIS in aphthous ulcers
ulcers/recurrent aphthous stomatitis and primary herpes?
aphthous ulcers are rarely on ATTACHED tissue (gingiva, palate)
