D514 - Lecture 9: Cementum | Questions with
Complete Solutions
what does cementum cover?
the anatomic root of the tooth
what is part of the periodontium that attaches the teeth to the alveolar bone by
anchoring the periodontal ligament?
cementum
what structures are included in the periodontium?
gingiva,
cementum,
alveolar bone,
periodontal ligaments
what type of tissue is cementum?
mineralized connective tissue
is cementum harder than enamel or dentin?
no
is cementum vascular or avascular?
avascular
does cementum have nerve supply?
no
can cementum be deposited after eruption?
, yes
where is cementum thinnest?
A. at the apex and near furcation of multi-rooted teeth (150-300 micrometers)
B. CEJ (30-50 micrometers)
B
where is cementum thickest?
A. at the apex and near furcation of multi-rooted teeth (150-300 micrometers)
B. CEJ (30-50 micrometers)
A
does cementum get thicker or thinner with age?
thicker
what is the chemical composition of mature cementum?
- 65% inorganic components,
- 35% organic components and water
what makes up 90% of the organic component of mature cementum?
type I collagen
aside from collage, what other proteins make up the organic component of mature
cementum?
dentin and bone sialoprotein,
alkaline phosphatase
what are the functions of cementum?
Complete Solutions
what does cementum cover?
the anatomic root of the tooth
what is part of the periodontium that attaches the teeth to the alveolar bone by
anchoring the periodontal ligament?
cementum
what structures are included in the periodontium?
gingiva,
cementum,
alveolar bone,
periodontal ligaments
what type of tissue is cementum?
mineralized connective tissue
is cementum harder than enamel or dentin?
no
is cementum vascular or avascular?
avascular
does cementum have nerve supply?
no
can cementum be deposited after eruption?
, yes
where is cementum thinnest?
A. at the apex and near furcation of multi-rooted teeth (150-300 micrometers)
B. CEJ (30-50 micrometers)
B
where is cementum thickest?
A. at the apex and near furcation of multi-rooted teeth (150-300 micrometers)
B. CEJ (30-50 micrometers)
A
does cementum get thicker or thinner with age?
thicker
what is the chemical composition of mature cementum?
- 65% inorganic components,
- 35% organic components and water
what makes up 90% of the organic component of mature cementum?
type I collagen
aside from collage, what other proteins make up the organic component of mature
cementum?
dentin and bone sialoprotein,
alkaline phosphatase
what are the functions of cementum?
