SALITARY-HYGINIC PONTICS .pdf prosthodontics fpd

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1. PONTICS
Salitary/hygienic pontics

2. Definition:(pontics)

● An artificial tooth on a fixed partial denture that replaces the missing
tooth restores its function and usually fills the space previously filled
by the natural crown.

3. Classification of Pontics

l) Mucosal contact
1. With mucosal contact
i-Ridge lap or saddle pontic
ii-Modified ridge lap
iii-Ovate pontic
iv-Conical pontic

2. Without mucosal contact
i-Sanitary/hygienic pontic
ii-Modified sanitary pontic/perel pontic/arc-shaped fpd
ll) Material used
1. All metal pontics
2. All ceramic pontics
3. Metal-ceramic pontics
4. Metal with resin facing pontiffs
5. Fibre-reinforced composite pontics

lll) Method of fabrication
1. Custom-made pontics
2. Prefabricated pontics

4. Sanitary/hygienic pontic

Sanitary pontic is called so because this design allows easy cleansing, as the
tissue surface of the pontic remains clear of the residual ridge.


Design
-no contact with residual ridge thus there are minimal chances of inflammation.
-Occlusogingival thickness of the pontic should be greater than 3 mm
-there should be adequate space under it to cleansing.
-It is frequently made in convex configuration in both faciolingually and
mesiodistally.
-The conventional type is called 'the fish belly' design where the undersurface of
the pontic is rounded with-out angles for easier cleansing/flossing because it is
difficult to get the floss to pass over a flat undersurface evenly

5. Advantages ;
- Good access for oral hygiene.
- Minimal tissue inflammation.


Disadvantage :
- Poor aesthetics.

6. Recommended location :
-Nonappearance zone (usually in the region of
mandibular molars) when occlusogingival space is high.


Contraindications :
-Appearance zone.
-Less vertical dimension will result in connector failure.

7. ii. Modified sanitary pontic/perel
pontic/arc-shaped fpd

- This is an alternative design in which there is a
mesiodistal concavity.
-The undersurface is convex faciolingually
-And it gives a configurationof the hyperbolic
parabolic.(Arch-shaped)
-This design provides an added strength to
the connecters and at the same time allows
space for easier cleansin