2. Anatomic landmarks :
• A recognizable anatomic structure used as a point of reference.
(GPT – 8).
Anatomical landmarks
Limiting
structure
Supporting
structure
primary stress
bearing area
secondary
bearing area
Relief
structures
11. •Labial = near to the lip
•Buccal = near to the cheek
•Lingual = near to the tongue
•palatal = near to the palate
•Frenum = fold
•Sulcus / vestibule = groove or depression
•Hamular notch = hook like
• Tuberosity = a rounded prominence
•Rugae = wrinkles
12.
13.
14.
15. Limiting structures (Fencing) of maxilla
Labial frenum
Labial sulcus
Buccal frenum
Buccal sulcus
Hamular notch
Posterior palatal seal area
17. LABIAL SULCUS/VESTIBULE
The portion of the oral cavity that is bounded on one side by the teeth, gingiva, and
alveolar ridge (in the edentulous mouth, the residual ridge) and on the other by the
lips anterior to the buccal frenula(GPT-8).
18. BUCCAL FRENUM
Single or multiple
Muscles attached in this region are
Levator anguli oris/canninus
Orbicularis oris
Buccinator
19. BUCCAL SULCUS/VESTIBULE
The portion of the oral cavity that is bounded on one side by the teeth, gingiva, and
alveolar ridge (In the edentulous mouth, the residual ridge) and on the lateral side
by the cheek posterior to the buccal frenula(GPT-8).
20. HAMULAR/ PTERYGOMAXILLARY NOTCH
The palpable notch formed by the junction of the maxilla and the pterygoid hamulus of the
sphenoid bone (GPT-8).
21. POSTERIOR PALATAL SEALAREA
Soft tissue area at /beyond the junction of the hard &
soft palate on which pressure within physiological
limits can be applied by a denture to aid in its
retention.(GPT-8)
25. HARD PALATE
Hard Palate
The anterior and posterior regions
Clinical significance
The horizontal portion of the hard palate
provides the primary stress-bearing area.
34. FOVEA PALATINAE
Bilateral indentations near the midline
of palate. Posterior to junction of hard
and soft palate.
These are a pair of mucous gland duct
orifices
46. Based In Arch
Maxillary Mandibular
Classifications of anatomical landmarks
Bases on anatomy
Limiting
structure
Supporting
structure
primary stress
bearing area
secondary
bearing area
Relief
structures