TCDHA PERIODONTICS MIDTERM TEST PAPER
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A
◉ gingiva. Answer: - provides tissue seal around the cervical portion
(neck) of the tooth
- covers the alveolar processes of the jaws
- holds tissue against the tooth during mastication (act of eating)
◉ periodontal ligament. Answer: suspends and maintains the tooth
in its socket
◉ cementum. Answer: -anchors the ends of the periodontal ligament
fibers to the tooth so that the tooth stays in its socket
- protects dentin of the oot
◉ alveolar bone. Answer: - surrounds and supports the roots of the
tooth
◉ the gingiva. Answer: - part of mucosa that surrounds cervical
portions of teeth and covers alveolar processes
- contour and shape of gingival margin approximates scalloped
curvature of cementoenamel junction (CEJ)
,- position may be age dependant
- attached by junctional epithelium (the velcro that holds gingiva to
the tooth, like a seal, they fuse together)
- composed of thin outer layer of epithelium and underlying layer of
connective tissue
◉ 4 anatomical areas of the gingiva. Answer: free gingiva, gingival
sulcus, interdental gingiva, and attached gingiva
◉ function of gingiva. Answer: protects underlying tooth-support
structures of periodontium from oral environment
◉ the boundaries of the gingiva. Answer: gingival margin (upper
edge) - coronal (towards crown of the tooth)
alveolar mucosa - apical (towards the apex of the tooth
◉ demarcations of the gingiva. Answer: not a clear boundary
◉ free gingival groove. Answer: shallow linear depression
separating free and attached gingiva (hard to see)
◉ mucogingival junction. Answer: where the pink attached gingiva
meets the the red alveolar mucosa (clinically visible)
, ◉ free gingiva. Answer: - unattached portion surrounds tooth in CEJ
region
- also called unattached gingiva or marginal gingiva
- most coronal boundary of gingiva
- surrounds tooth in a turtleneck manner
- attaches by junctional epithelium at the base of the sulcus
- fits closely around tooth but not directly attached, you can slightly
retract it with the periodontal probe
forms soft tissue lateral wall of gingival sulcus
◉ free gingival margin. Answer: thin rounded edge where free
gingiva meets tooth
- follows scalloped and curved contours of underlying CEJ
- may be gently retracted with a periodontal probe
- meets the tooth in a thin rounded edge called gingival margin
◉ gingival margin. Answer: gingival margin follows tooth contour
creating a scalloped outline, its where the tooth and gums meet
◉ attached gingiva. Answer: continuous with free gingiva
- tightly bound to the
underlying cementum on cervical third of root
2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A
◉ gingiva. Answer: - provides tissue seal around the cervical portion
(neck) of the tooth
- covers the alveolar processes of the jaws
- holds tissue against the tooth during mastication (act of eating)
◉ periodontal ligament. Answer: suspends and maintains the tooth
in its socket
◉ cementum. Answer: -anchors the ends of the periodontal ligament
fibers to the tooth so that the tooth stays in its socket
- protects dentin of the oot
◉ alveolar bone. Answer: - surrounds and supports the roots of the
tooth
◉ the gingiva. Answer: - part of mucosa that surrounds cervical
portions of teeth and covers alveolar processes
- contour and shape of gingival margin approximates scalloped
curvature of cementoenamel junction (CEJ)
,- position may be age dependant
- attached by junctional epithelium (the velcro that holds gingiva to
the tooth, like a seal, they fuse together)
- composed of thin outer layer of epithelium and underlying layer of
connective tissue
◉ 4 anatomical areas of the gingiva. Answer: free gingiva, gingival
sulcus, interdental gingiva, and attached gingiva
◉ function of gingiva. Answer: protects underlying tooth-support
structures of periodontium from oral environment
◉ the boundaries of the gingiva. Answer: gingival margin (upper
edge) - coronal (towards crown of the tooth)
alveolar mucosa - apical (towards the apex of the tooth
◉ demarcations of the gingiva. Answer: not a clear boundary
◉ free gingival groove. Answer: shallow linear depression
separating free and attached gingiva (hard to see)
◉ mucogingival junction. Answer: where the pink attached gingiva
meets the the red alveolar mucosa (clinically visible)
, ◉ free gingiva. Answer: - unattached portion surrounds tooth in CEJ
region
- also called unattached gingiva or marginal gingiva
- most coronal boundary of gingiva
- surrounds tooth in a turtleneck manner
- attaches by junctional epithelium at the base of the sulcus
- fits closely around tooth but not directly attached, you can slightly
retract it with the periodontal probe
forms soft tissue lateral wall of gingival sulcus
◉ free gingival margin. Answer: thin rounded edge where free
gingiva meets tooth
- follows scalloped and curved contours of underlying CEJ
- may be gently retracted with a periodontal probe
- meets the tooth in a thin rounded edge called gingival margin
◉ gingival margin. Answer: gingival margin follows tooth contour
creating a scalloped outline, its where the tooth and gums meet
◉ attached gingiva. Answer: continuous with free gingiva
- tightly bound to the
underlying cementum on cervical third of root
