AAPD- Oral Pathology Exam Questions & Answers (100% VERIFIED)
Question 1:
Radiopaque, well defined well localized non-corticated located at apex of VITAL teeth No root resorption
of teeth displacement
Answer:
IDIOPATHIC BONE SCLEROSIS
Question 2:
Simple bone cyst (4)
Answer:
NOT a true cyst Mandible, posterior
NO EFFECT ON SURROUNDING TEETH (HALLMARK)
Lamina dura intact, vital teeth
Replacement of normal bone with fibrous tissue- ORANGE PEEL or GROUND GLASS APPEARANCE OF
BONE
Question 3:
solitary or multiple, asymptomatic
Answer:
FIBROUS DYSPLASIA
Question 4:
Replacement of normal bone with fibrous and cementum-like material, MIXED RL AND RO near apices of
teeth, FEMALES 9:1
Answer:
Focal cemnto-osseous dysplasia
Question 5:
Radiolucent, well-defined, corticated, localized to non-vital tooth
Answer:
RADICULAR CYST
Second primary molars, well-defined radiolucency corticated around roots of involved teeth
BUCCAL BIFURCATION CYST
Radiolucency around unerupted tooth, CONTINUOUS WITH CEJ, well defined
DENTIGEROUS CYST
Question 6:
what are the 2 other things that should be in a differential for a dentigerous cyst?
odontogenic keratocyst (KOT/OKC)
cystic ameloblastoma
, main difference between dentigerous cyst to OKC
Answer:
OKC is ABOVE IAN (dentigerous can go blow)
Question 7:
well defined, corticated, radiolucency in maxillary anterior between incisors, occasionally causes roots of
incisors to diverge or root resorption
Answer:
NASOPALATINE DUCT CYST (HEART SHAPED)
homogenous radiolucent with radiopaque foci (snowflakes) area around MAXILLARY CANINES
ADENOMATOID ODONTOGENIC TUMOR
Question 8:
what are the 3 most common radiographic findings in posterior mandible
Answer:
dentigerous cyst
OKC
ameloblastic fibroma
Question 9:
homogenous radiolucency, late cortical expansion, may cause displacement of teeth, can be multiocular
Answer:
AMELOBLASTIC FIBROMA
radiopacity with radiolucencies throughout and thin surrounding radiolucency (GOLF BALL)
COMPLEX ODONTOMA (different version of COMPOUND ODONTOMA)
Question 10:
well defined, radiopacity with thin radiolucent band within corticated border consistent with apex of
tooth, often PAINFUL but unrelated to vitality of tooth
Answer:
BENIGN CEMENTOBLASTOMA
Question 11:
PERIOSTEAL REACTIONS CAUSING SUNRAY APPEARANCE
Answer:
Ewing Sarcoma
Question 12:
3 most common radiographic changes in patients with ALL
Answer:
ILL DEFINED RL/RO areas
DISPLACEMENT OF UNERUPTED TEETH
Question 1:
Radiopaque, well defined well localized non-corticated located at apex of VITAL teeth No root resorption
of teeth displacement
Answer:
IDIOPATHIC BONE SCLEROSIS
Question 2:
Simple bone cyst (4)
Answer:
NOT a true cyst Mandible, posterior
NO EFFECT ON SURROUNDING TEETH (HALLMARK)
Lamina dura intact, vital teeth
Replacement of normal bone with fibrous tissue- ORANGE PEEL or GROUND GLASS APPEARANCE OF
BONE
Question 3:
solitary or multiple, asymptomatic
Answer:
FIBROUS DYSPLASIA
Question 4:
Replacement of normal bone with fibrous and cementum-like material, MIXED RL AND RO near apices of
teeth, FEMALES 9:1
Answer:
Focal cemnto-osseous dysplasia
Question 5:
Radiolucent, well-defined, corticated, localized to non-vital tooth
Answer:
RADICULAR CYST
Second primary molars, well-defined radiolucency corticated around roots of involved teeth
BUCCAL BIFURCATION CYST
Radiolucency around unerupted tooth, CONTINUOUS WITH CEJ, well defined
DENTIGEROUS CYST
Question 6:
what are the 2 other things that should be in a differential for a dentigerous cyst?
odontogenic keratocyst (KOT/OKC)
cystic ameloblastoma
, main difference between dentigerous cyst to OKC
Answer:
OKC is ABOVE IAN (dentigerous can go blow)
Question 7:
well defined, corticated, radiolucency in maxillary anterior between incisors, occasionally causes roots of
incisors to diverge or root resorption
Answer:
NASOPALATINE DUCT CYST (HEART SHAPED)
homogenous radiolucent with radiopaque foci (snowflakes) area around MAXILLARY CANINES
ADENOMATOID ODONTOGENIC TUMOR
Question 8:
what are the 3 most common radiographic findings in posterior mandible
Answer:
dentigerous cyst
OKC
ameloblastic fibroma
Question 9:
homogenous radiolucency, late cortical expansion, may cause displacement of teeth, can be multiocular
Answer:
AMELOBLASTIC FIBROMA
radiopacity with radiolucencies throughout and thin surrounding radiolucency (GOLF BALL)
COMPLEX ODONTOMA (different version of COMPOUND ODONTOMA)
Question 10:
well defined, radiopacity with thin radiolucent band within corticated border consistent with apex of
tooth, often PAINFUL but unrelated to vitality of tooth
Answer:
BENIGN CEMENTOBLASTOMA
Question 11:
PERIOSTEAL REACTIONS CAUSING SUNRAY APPEARANCE
Answer:
Ewing Sarcoma
Question 12:
3 most common radiographic changes in patients with ALL
Answer:
ILL DEFINED RL/RO areas
DISPLACEMENT OF UNERUPTED TEETH
