NBDHE exam UPDATED Exam Questions
and CORRECT Answers
a cyst is - CORRECT ANSWER - an abnormal pathologic sac
a cavity lined by epithelial tissue
enclosed by connective tissue
diagnosed on the basis of histologic appearance and location
in which layer of the epidermis are cells undergoing mitosis most likely to be seen? - CORRECT
ANSWER - stratum basal
hypersensitivity of the dentinal surface to external stimuli is caused by... - CORRECT
ANSWER - fluid movement within the tubules that transmit signals to the nerves in the
pulp chamber
which tissues have nerve innervations? - CORRECT ANSWER - pulp
periodontal ligament
because of the proximity of odontoblastic cell bodies to the nerve terminal endings in the tooth,
clinical exposure of dentin may result in sensitivity. what is the location of odontoblastic bodies?
- CORRECT ANSWER - pulp
tooth structure loss that occurs from pathologic wear of teeth by foreign substance is called -
CORRECT ANSWER - abrasion
the cres of the alveolar bone is usually apical to the cemento-enamel junction by.. - CORRECT
ANSWER - 0.75 to 1.49 mm
how do cysts show up radiographically - CORRECT ANSWER - with a well defined
border
,how do soft tissues cysts show up radiographically - CORRECT ANSWER - they do not
show up on radiographs
the tissue lining of an unhealthy gingival sulcus consists of - CORRECT ANSWER -
nonkeratinized epithelium with rete pegs
the bottom of the gingival sulcus is marked by the.. - CORRECT ANSWER - junctional
epithelium
which tissues have little or no keratinization? - CORRECT ANSWER - sulcular epithelium
what does bleeding caused by probing indicate? - CORRECT ANSWER - ulceration of
crevicular epithelium
which tissue changes result in erythematous gingiva - CORRECT ANSWER - increased
vascularization of the underlying vascular connective tissue
what type of connective tissue underlies the epithelium of the gingival? - CORRECT
ANSWER - fibrous which gives it its firm consistency
in gingivitis, poor tissue tone is caused by - CORRECT ANSWER - destruction of
collagen fibers
definitive diagnosis of furcation involvement is made by - CORRECT ANSWER - clinical
probing because it cant always be seen in radiographs
enamel projections of the root surface are attributed to the differentiation of - CORRECT
ANSWER - hertwig's epithelial root sheath
,hertwig's epithelial root sheath is derived from the - CORRECT ANSWER - reduced
enamel epithelium
hertwing's epithelial root sheath is entirely composed of - CORRECT ANSWER - inner
and outer enamel epithelium
when is root formation completed? - CORRECT ANSWER - 1-4 years after eruption
remnants of hertwig's epithelial root sheath found in the periodontal ligament of a functioning
tooth are called - CORRECT ANSWER - rests of malassez
the stippled texture of gingiva may be attributed to - CORRECT ANSWER - connective
tissue projections
the color of gingiva may be attributed to - CORRECT ANSWER - keratinization
thickness of the epithelium
blood supply
pigmentation
a specialized periosteum which forms and resorbs bone and cementum is called - CORRECT
ANSWER - periodontal ligament
what is the outer less calcified layer of cementum that results in cementum resorbing less readily
than bone ? - CORRECT ANSWER - cementoid
cementum is a product of - CORRECT ANSWER - periodontal ligament
which cells does the periodontal ligament contain? - CORRECT ANSWER - osteoblasts
osteoclasts
, cementoblasts
cementoclasts
a cleft-like absence of the alveolar cortical plate resulting in a denuded root surface is called -
CORRECT ANSWER - dehiscence
characteristics of bundle bone (alveolar bone proper) - CORRECT ANSWER - adjacent to
the periodontal ligament and containing sharpey's fibers
which tissues of the normal periodontium is the alveolar bone directly adjacent to? - CORRECT
ANSWER - periodontal ligament and gingival connective tissue
the cells that are important in the formation of the principal fibers of the periodontal ligament are
- CORRECT ANSWER - fibroblasts
the types of epithelia found lining the oral cavity include - CORRECT ANSWER -
keratinized and nonkeratinized stratified squamous
epithelial tissues are characterized by - CORRECT ANSWER - little intercellular
substance and many cells
embryonically, the mandible is derived from the - CORRECT ANSWER - first branchial
arch
the anterior portion, or body, of the tongue develops from the - CORRECT ANSWER -
mandibular process
a cleft lip occurs when the maxillary process fails to fuse with the - CORRECT
ANSWER - globular process
and CORRECT Answers
a cyst is - CORRECT ANSWER - an abnormal pathologic sac
a cavity lined by epithelial tissue
enclosed by connective tissue
diagnosed on the basis of histologic appearance and location
in which layer of the epidermis are cells undergoing mitosis most likely to be seen? - CORRECT
ANSWER - stratum basal
hypersensitivity of the dentinal surface to external stimuli is caused by... - CORRECT
ANSWER - fluid movement within the tubules that transmit signals to the nerves in the
pulp chamber
which tissues have nerve innervations? - CORRECT ANSWER - pulp
periodontal ligament
because of the proximity of odontoblastic cell bodies to the nerve terminal endings in the tooth,
clinical exposure of dentin may result in sensitivity. what is the location of odontoblastic bodies?
- CORRECT ANSWER - pulp
tooth structure loss that occurs from pathologic wear of teeth by foreign substance is called -
CORRECT ANSWER - abrasion
the cres of the alveolar bone is usually apical to the cemento-enamel junction by.. - CORRECT
ANSWER - 0.75 to 1.49 mm
how do cysts show up radiographically - CORRECT ANSWER - with a well defined
border
,how do soft tissues cysts show up radiographically - CORRECT ANSWER - they do not
show up on radiographs
the tissue lining of an unhealthy gingival sulcus consists of - CORRECT ANSWER -
nonkeratinized epithelium with rete pegs
the bottom of the gingival sulcus is marked by the.. - CORRECT ANSWER - junctional
epithelium
which tissues have little or no keratinization? - CORRECT ANSWER - sulcular epithelium
what does bleeding caused by probing indicate? - CORRECT ANSWER - ulceration of
crevicular epithelium
which tissue changes result in erythematous gingiva - CORRECT ANSWER - increased
vascularization of the underlying vascular connective tissue
what type of connective tissue underlies the epithelium of the gingival? - CORRECT
ANSWER - fibrous which gives it its firm consistency
in gingivitis, poor tissue tone is caused by - CORRECT ANSWER - destruction of
collagen fibers
definitive diagnosis of furcation involvement is made by - CORRECT ANSWER - clinical
probing because it cant always be seen in radiographs
enamel projections of the root surface are attributed to the differentiation of - CORRECT
ANSWER - hertwig's epithelial root sheath
,hertwig's epithelial root sheath is derived from the - CORRECT ANSWER - reduced
enamel epithelium
hertwing's epithelial root sheath is entirely composed of - CORRECT ANSWER - inner
and outer enamel epithelium
when is root formation completed? - CORRECT ANSWER - 1-4 years after eruption
remnants of hertwig's epithelial root sheath found in the periodontal ligament of a functioning
tooth are called - CORRECT ANSWER - rests of malassez
the stippled texture of gingiva may be attributed to - CORRECT ANSWER - connective
tissue projections
the color of gingiva may be attributed to - CORRECT ANSWER - keratinization
thickness of the epithelium
blood supply
pigmentation
a specialized periosteum which forms and resorbs bone and cementum is called - CORRECT
ANSWER - periodontal ligament
what is the outer less calcified layer of cementum that results in cementum resorbing less readily
than bone ? - CORRECT ANSWER - cementoid
cementum is a product of - CORRECT ANSWER - periodontal ligament
which cells does the periodontal ligament contain? - CORRECT ANSWER - osteoblasts
osteoclasts
, cementoblasts
cementoclasts
a cleft-like absence of the alveolar cortical plate resulting in a denuded root surface is called -
CORRECT ANSWER - dehiscence
characteristics of bundle bone (alveolar bone proper) - CORRECT ANSWER - adjacent to
the periodontal ligament and containing sharpey's fibers
which tissues of the normal periodontium is the alveolar bone directly adjacent to? - CORRECT
ANSWER - periodontal ligament and gingival connective tissue
the cells that are important in the formation of the principal fibers of the periodontal ligament are
- CORRECT ANSWER - fibroblasts
the types of epithelia found lining the oral cavity include - CORRECT ANSWER -
keratinized and nonkeratinized stratified squamous
epithelial tissues are characterized by - CORRECT ANSWER - little intercellular
substance and many cells
embryonically, the mandible is derived from the - CORRECT ANSWER - first branchial
arch
the anterior portion, or body, of the tongue develops from the - CORRECT ANSWER -
mandibular process
a cleft lip occurs when the maxillary process fails to fuse with the - CORRECT
ANSWER - globular process
