and Answers
a cyst is
Ans- 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?
Ans- stratum basal
hypersensitivity of the dentinal surface to external stimuli is caused by...
,Ans- fluid movement within the tubules that transmit signals to the nerves in
the pulp chamber
which tissues have nerve innervations?
Ans- 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?
Ans- pulp
tooth structure loss that occurs from pathologic wear of teeth by foreign
substance is called
Ans- abrasion
the cres of the alveolar bone is usually apical to the cemento-enamel junction
by..
,Ans- 0.75 to 1.49 mm
how do cysts show up radiographically
Ans- with a well defined border
how do soft tissues cysts show up radiographically
Ans- they do not show up on radiographs
the tissue lining of an unhealthy gingival sulcus consists of
Ans- nonkeratinized epithelium with rete pegs
the bottom of the gingival sulcus is marked by the..
Ans- junctional epithelium
which tissues have little or no keratinization?
Ans- sulcular epithelium
, what does bleeding caused by probing indicate?
Ans- ulceration of crevicular epithelium
which tissue changes result in erythematous gingiva
Ans- increased vascularization of the underlying vascular connective tissue
what type of connective tissue underlies the epithelium of the gingival?
Ans- fibrous which gives it its firm consistency
in gingivitis, poor tissue tone is caused by
Ans- destruction of collagen fibers
definitive diagnosis of furcation involvement is made by
Ans- clinical probing because it cant always be seen in radiographs
enamel projections of the root surface are attributed to the differentiation of
Ans- hertwig's epithelial root sheath