What is Post dam?
A groove cut along the posterior palatal margin of a denture cast which produces a ridge on the finished denture and forms a more effective posterior seal to aid retention. It also acts to prevent food debris collecting between the palatal mucosa and the denture. From: post-dam in A Dictionary of Dentistry »
What is the function of post dam?
The post dam should be designed to conform to the palatal anatomy at the junction of movable and immovable tissues of palate. This objective is often achieved by using the physiologic method to thicken the posterior border of denture base and compress the soft tissue within the physiologic limit.
Where is the post dam area?
Soft tissues along the junction of the hard and soft palates on which pressure within the physiologic limits of the tissues can be applied by a denture to aid in the retention of the denture. Synonym(s): post dam area, postpalatal seal area.
How do I record PPS?
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 post damming in complete denture?
: a posterior extension of a full denture to accomplish a complete seal between denture and tissues.
What is fovea palatini?
The fovea palatini are two depressions that lie bilateral to the midline of the palate, at the approximate junction between the. soft and hard palate. They denote the sites of opening of ducts of small mucous glands of the palate.
What is the swing lock denture?
Swing lock denture provides maximizing stability and retention stability by access to more tooth structures and undercuts with the unique clasping mechanism offered by the incorporation of lock, hinge and gate assemblies . It is indicated in missing or weakened key abutment teeth, such as a bilateral distal extension.
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 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 primary stress bearing area?
Primary stress bearing areas of maxilla are crest of alveolar ridge and the horizontal plate of palatine bone and in the mandible; it is the buccal shelf area. Secondary stress bearing areas of the maxillary foundation are rugae area and the slopes of the ridge in the mandibular foundation.
Who proposed swing lock denture?
Dr Joe J. Simmons
It was first described by Dr Joe J. Simmons In The Texas Dental journal in February 1963. [1,2] This was also described at later dates by Brown, 1970 Sprigg, 1977. It is indicated in missing or weakened key abutment teeth, such as a bilateral distal extension.