According to glossary of Prosthodontic terms. Vibrating line is dened as “ an imaginary area. rather than line at the junction of immovable and. movable tissue across the posterior part of the. palate.
Where do you find the fovea Palatinae?
The fovea palatinae are a set of two small depressions in the posterior aspect of the hard palate where it meets the soft palate on either side of the midline.
What is the fovea palatini?
two small depressions in the posterior aspect of the palate, one on each side of the midline, at or near the attachment of the soft palate to the hard palate.
What is located in the fovea?
Fovea: In the eye, a tiny pit located in the macula of the retina that provides the clearest vision of all. Only in the fovea are the layers of the retina spread aside to let light fall directly on the cones, the cells that give the sharpest image. Also called the central fovea or fovea centralis.
What is the purpose of a 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 …
Why is PPS cupid bow shaped?
The anterior vibrating line now marked and transferred to master cast. … The visual outline is in the shape of cupid bow the area between the anterior posterior vibrating lines is usually narrowest in the mid palatal region because of the projection of the posterior nasal spine. 6.
How do I record PPS area?
According to Nelson, for recording PPS, the position of head must be downward so that the Frankfort plane (portion- orbital) is a 30 (below the horizontal and the tongue is firmly positioned against the mandibular anterior teeth.
What is a vibrating line?
n. The imaginary line across the posterior palate, marking the division between the movable and immovable tissues.
What is PPS in dentistry?
The PPS area has been defined as “the soft tissue area at or beyond the junction of the hard and soft palates on which pressure, within physiologic limits, can be applied by a complete denture prosthesis to aid in retention” .
What is lateral throat form?
Introduction: Lateral throat form is an area situated at the distal end of the alveololingual sulcus. Its synonyms are distolingual vestibule and retromylohyoid fossa. … Purpose: To evaluate the relative proportion of the lateral throat forms in 74 patients aged between 18-45 years from Lucknow(Eastern UP).
What is posterior palatal seal?
The posterior palatal seal area is defined as the soft tissue area at or beyond the junction of the hard and soft palates on which pressure within physiologic limits can be applied by a removable complete denture to aid in its retention.
What is the hard palate?
The hard palate is a thin horizontal bony plate made up of two bones of the facial skeleton, located in the roof of the mouth. The bones are the palatine process of the maxilla and the horizontal plate of palatine bone.
What is combination syndrome?
Combination syndrome (CS) is a dental condition that is commonly seen in patients with a completely edentulous maxilla and partially edentulous mandible with preserved anterior teeth.
What is Cupid bow shape?
A Cupid’s bow is the name of a lip shape where the upper lip comes to two distinct points toward the center of the mouth, almost like a letter ‘M’. These points are usually directly in line with the philtrum, otherwise known as the grooved space between the nose and mouth.
What is freeway space?
The interval between the upper and lower teeth when the mandible is in the physiologic rest position is commonly known as the freeway space. … The freeway space is now generally recognized as a normal and necessary feature of normal occlusal function.
What is border molding?
The border molding technique is the shaping of the border areas of a custom impression tray by manual or functional manipulation of the tissue adjacent to the borders in order to duplicate the size and contour of the vestibule resulting in maintains of the peripheral seal during function.
What is compensating curve?
The curvature of the occlusal plane of dentures, created to permit balanced occlusion, to compensate for the paths of the mandibular condyles as the mandible moves from centric to eccentric positions.
What is balanced occlusion?
Balanced Occlusion is defined as the bilateral, simultaneous, anterior, and posterior occlusal contact of teeth in centric and eccentric positions. Balanced occlusion in complete dentures is unique, as it does not occur with natural teeth.
What is the difference between macula and fovea?
Fovea: The pit or depression at the center of the macula that provides greatest visual acuity. … Macula: The portion of eye at the center of the retina that processes sharp, clear, straight-ahead vision.
What happens at the fovea?
The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for reading, driving, and any activity where visual detail is of primary importance. The fovea is surrounded by the parafovea belt, and the perifovea outer region.
Is the fovea the blind spot?
The blind spot (Fovea centralis)
The blind spot is located about 15 degrees on the nasal side of the fovea.