Gagging (nausea): loose denture – thick distal termination of upper denture – lingual placement of upper denture – occlusal plane low.
Types Of Gagging:
a. Psychogenic -starts in mind, very difficult to treat
b. Stomatogenic -starts in body (usually dentures), treatable
c. Dental causes:
1. Lack of retention
2. Poor occlusion
3. Insufficient or excessive palatal seal.
4. Crowded tongue due to a thick palate or poor tooth placement
5. Excessive salivation
6. Excessive vertical dimension (often seen in new dentures).
Denture over-extension onto the soft palate may stimulate a gag reflex directly by continuous contact or indirectly by intermittent contact brought about by the activity of the soft palate or posterior third of the tongue.
An under-extended denture (or an unstable denture from occlusal interferences) will lack a posterior seal, will dislodge intermittently, irritate the posterior third of the tongue and thus cause nausea.
A palpable and thickened posterior border will also irritate the tongue. Interference with tongue space, as in an excessively large vertical dimension which causes compensatory protrusion of the tongue, or in a narrow arch which forces the tongue to occupy an unnatural position, may also manifest as nausea.
Types Of Gagging:
a. Psychogenic -starts in mind, very difficult to treat
b. Stomatogenic -starts in body (usually dentures), treatable
c. Dental causes:
1. Lack of retention
2. Poor occlusion
3. Insufficient or excessive palatal seal.
4. Crowded tongue due to a thick palate or poor tooth placement
5. Excessive salivation
6. Excessive vertical dimension (often seen in new dentures).
Denture over-extension onto the soft palate may stimulate a gag reflex directly by continuous contact or indirectly by intermittent contact brought about by the activity of the soft palate or posterior third of the tongue.
An under-extended denture (or an unstable denture from occlusal interferences) will lack a posterior seal, will dislodge intermittently, irritate the posterior third of the tongue and thus cause nausea.
A palpable and thickened posterior border will also irritate the tongue. Interference with tongue space, as in an excessively large vertical dimension which causes compensatory protrusion of the tongue, or in a narrow arch which forces the tongue to occupy an unnatural position, may also manifest as nausea.
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Dentistry