What is Applegate rule?

What is Applegate rule?

Applegate Rule 1 For example, a patient may have a unilateral free-end saddle (Class II). If this patient then has posterior extractions on the opposite side of the same arch, then they may end up with bilateral free-end saddles and would be a Class I.

What is Ante’s law?

Ante’s law states that “the total periodontal membrane area of the abutment teeth must equal or exceed that of the teeth to be replaced.”1 For more than 80 years, this law has been taught in standard textbooks of prosthodontics as an important condition influencing FDP design.

What are the Kennedy classification?

The Kennedy method of classification of Edentulous Spaces was originally proposed by Dr. Edward Kenedy in 1925. Like the Bailyn classification and also the Skinner classification, it is to classify the partially edentulous arch in a manner that will suggest certain principles of design for a given situation.

What is the modification in Kennedy?

The Kennedy classification has been modified by Applegate with the addition of two more groups. Class V: Tooth-bounded edentulous area where the anterior abutment is a weak (e.g., lateral incisor) abutment that is incapable of providing support for a conventional RPD and edentulous space is long (Fig. 3.5).

How many Applegate rules are there?

eight rules
Applegate provided eight rules to govern the application of Kennedy’s system.

What is RPI system?

 RPI is a modified I-bar retainer system.  Krol devised it in 1973.  All the components of the I-bar assembly were modified significantly to fulfill Krol’s design.  Principle of Krol’s design was – “Stress control with minimal tooth & gingival coverage”.

What happens if you violate biologic width?

Biologic width violation can lead to bleeding or recession of the gingival tissue; chronic inflammation of the gingival tissue, especially immediately around the restoration; the formation of pockets between the gums and teeth; and loss of alveolar bone.

What is pier abutment?

Pier abutment, also named inter- mediate abutment, is defined by the Glossary. of Prosthodontic Terms as a natural tooth. located between terminal abutments that. serve to support a fixed or removable dental.

What is the swing lock denture?

The swing-lock removable partial denture (RPD) is a little-taught RPD concept that offers clinicians additional choices in the treatment of perplexing situations involving periodontally compromised dentitions, missing key abutments, and other clinical situations in which a conventional RPD design may not be feasible.

What is RPA and RPI?

The RPA clasp was developed to deal with the problems encountered with the use of the RPI clasp. The initials signify rest, proximal plate, and Akers clasp arm. The mesial rest and proximal plate are designed identically to those of the RPI clasp. The difference is in the retentive arm.