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NBDHE Exam Study Guide 2026/2027 | Practice Questions, Answers & Comprehensive Dental Hygiene Review

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NBDHE Exam Study Guide 2026/2027 | Practice Questions, Answers & Comprehensive Dental Hygiene Review

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NBDHE exam 2025 Guide

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Terms in this set (624)


an abnormal pathologic A cyst
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 stratum basal
epidermis are cells
undergoing mitosis most
likely to be seen?

hypersensitivity of the fluid movement within the tubules that transmit signals
dentinal surface to to the nerves in the pulp chamber
external stimuli is caused
by...

which tissues have nerve pulp
innervations? periodontal ligament




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because of the proximity pulp
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?

tooth structure loss that abrasion
occurs from pathologic
wear of teeth by foreign
substance is called

the cres of the alveolar 0.75 to 1.49 mm
bone is usually apical to
the cemento-enamel
junction by..

how do cysts show up with a well defined border
radiographically

how do soft tissues cysts they do not show up on radiographs
show up radiographically

the tissue lining of an nonkeratinized epithelium with rete pegs
unhealthy gingival sulcus
consists of

the bottom of the gingival junctional epithelium
sulcus is marked by the..

which tissues have little or sulcular epithelium
no keratinization?

what does bleeding ulceration of crevicular epithelium
caused by probing
indicate?




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which tissue changes increased vascularization of the underlying vascular
result in erythematous connective tissue
gingiva

what type of connective fibrous which gives it its firm consistency
tissue underlies the
epithelium of the gingival?

in gingivitis, poor tissue destruction of collagen fibers
tone is caused by

definitive diagnosis of clinical probing because it cant always be seen in
furcation involvement is radiographs
made by

enamel projections of the hertwig's epithelial root sheath
root surface are attributed
to the differentiation of

hertwig's epithelial root reduced enamel epithelium
sheath is derived from the

hertwing's epithelial root inner and outer enamel epithelium
sheath is entirely
composed of

when is root formation 1-4 years after eruption
completed?

remnants of hertwig's rests of malassez
epithelial root sheath
found in the periodontal
ligament of a functioning
tooth are called

the stippled texture of connective tissue projections
gingiva may be attributed
to




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keratinization
the color of gingiva may thickness of the epithelium
be attributed to blood supply
pigmentation

a specialized periosteum periodontal ligament
which forms and resorbs
bone and cementum is
called

what is the outer less cementoid
calcified layer of
cementum that results in
cementum resorbing less
readily than bone ?

cementum is a product of periodontal ligament

osteoblasts
which cells does the
osteoclasts
periodontal ligament
cementoblasts
contain?
cementoclasts

a cleft-like absence of the dehiscence
alveolar cortical plate
resulting in a denuded
root surface is called

characteristics of bundle adjacent to the periodontal ligament and containing
bone (alveolar bone sharpey's fibers
proper)

which tissues of the periodontal ligament and gingival connective tissue
normal periodontium is
the alveolar bone directly
adjacent to?




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