Why is a post dam added to an upper denture?
A post dam is commonly created on the cast after the completion of indexing or investment procedure required for relining/rebasing the denture. This method is convenient and avoids the inconvenience related to the turnaround of an indexed or invested cast between the practitioner and the dental technician.
What is denture granuloma?
” The denture granuloma is a similar lesion to the fibro−epithelial polyp, modif- ied by the morphology of the tissues and by the nature of the irritant”(6). Hyper- plastic soft tissue is often found in the ede- ntulous mouth near the periphery of dent- ures or under their fitting surface(7−9).
Where is the Hamular notch?
a groove or notch at the base of the pterygoid hamulus that forms a pulley for the tendon of the tensor veli palatini muscle.
What does denture stomatitis look like?
What does denture stomatitis look like? People with denture stomatitis may notice redness, irritation or swelling in the mouth, especially on the palate (roof of the mouth). Thrush — which looks like light-colored patches — may appear on the gums, lips, inner cheeks, tongue and palate.
What is denture hyperplasia?
Denture-induced hyperplasia is a reactive lesion arising from excessive and chronic mechanical pressure on the vestibular oral mucosa. It has a female predilection and it is mostly seen in the maxilla. The size of the lesion may be as small as a few millimeters to massive lesion involving the entire vestibule.
What is the purpose of the posterior palatal seal?
The posterior palatal seal functions to provide retention and stability of a well-adapted denture through forces of adhesion, cohesion and interfacial surface tension by providing a proper seal, prevents food accumulation between posterior border of denture and soft palate, to reduce the tendency of gag, to make the …
How can you tell if a seal is posterior palatal?
The patient is asked to sit in an upright position and asked to rinse his mouth with some astringent mouth wash. The posterior palatal area is wiped with gauze. The “T” burnisher is used to locate the hamular notch by palpating posteriorly to the maxillary tuberosity on both sides.
What is the purpose of a posterior palatal seal?
What is PPS in dentistry?
• Posterior palatal seal (PPS) is defined as the. seal area at the posterior border of a maxillary removable dental prosthesis.