MAJOR CONNECTORS. DEFINITION. The MAJOR CONNECTOR is that part of a RPD that joins the component parts on one side of the arch to those on the. Major Connectors. BDS III year. RPD Lecture. Timing- PM. Dr Deeksha Arya . Associate Professor. Department of prosthodontics. Components of a typical. Major Connectors IN RPD – Download as Powerpoint Presentation .ppt /.pptx), PDF File .pdf), Text File .txt) or view presentation slides online. DENTISTRY-.

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This phenomenon is referred to as cross-arch stability. Stress analysis studies of inlays, crowns, fixed bridges, complete dentures, partial dentures and implants have been reported [ 4 ].

5: Major and Minor Connectors

Also, the choice of the shape and location of major connectors is greater in the upper jaw because of the larger area available for coverage offered by the hard palate 2 The location and areas of tissue coverage by a major connector is of uttermost importance, as these features will affect the acceptability of the prosthesis and its eventual performance.

Bulk to enhance rigidity results in increased thickness in areas that are a hindrance to the ij. Margins of major connectors adjacent to gingival tissue should be located far enough from the tissue to avoid any possible impingement.

Similarly, all the patients reported that the three maxillary major connectors were not equally easy to tolerate during normal rest.

In a class III situation the amount of deflection which was observed were considerably less compared to class I and class II situations, when Anteroposterior palatal strap major connector were used. The objective of this study is to use finite element method to Determine the deflections seen in maxillary removable partial denture frameworks under simulated occlusal load.

Its uniform thinness and the thermal conductivity of the metal are designed to make the palatal plate more readily acceptable to the tongue and underlying tissue. To use this website, you must agree to our Privacy Policyincluding cookie policy.


Minor connectors that must cross gingival tissue should do so abruptly, joining the major connector at nearly a right angle Figure If a lingual bar alone is to be used anteriorly, connectprs is no reason to add an apron elsewhere.

Model 4—full palatal plate in class II Fig.

Introduction Major connector is an important component of removable partial denture RPD. Anteroposterior palatal strap in class III and class IV situation showed conectors least deflection when compared to class I and class II distal extension situation Anteroposterior palatal strap is more rigid connector than the full palatal plate, single palatal strap, and U-shaped palatal strap and can be used in all situations.

Also, rp deformation characteristics of some special points having similar locations such as points 1 to 9 on the palatal plate and U-shaped plate designs; Figs 3a and cinnectors and Table 1 were investigated in different major connectors.

Connectors should be of minimum bulk and should be positioned so that interference with the tongue during speech and mastication is not encountered Slide Int J Prosthodont ; The palatal plate may be used in any one of three ways. Limited space for the lingual bar requires use of the linguoplate major connector.

Study of Deflections in Maxillary Major Connectors: A Finite Element Analysis

Similarly Anteroposterior palatal strap major connector when used in class IV situation showed least amount of deflection when compared to other situations, but was close to class III situation since comnectors was of a very short span and replaced only 6 anterior teeth.

The X and Y coordinates were kept constant, and the Z axis heights were determined to make volume mm rps calculations for the dentures. Maxillary Major Connectors Six basic types of maxillary major mjor are considered: Discussion Many opinions have been expressed concerning the acceptability of major connector but such studies in Africa are very few.


Steps 1 and 2, when completed, provide an outline or designate areas that are available to place components of major connectors Step 4: The deformation properties of major connectors were comparatively analyzed by two methods. Hard structures such as the mid-palatal suture or mandibular tori Place relief.

The cross section outlines were drawn as per the dimensional sketches taken from the CT scan. Relief is provided for soft tissue under all portions of the mandibular major connector and at any location where the framework majof the marginal gingiva.


On the overall acceptability of the types of dentures under study, only one of the subjects treated in this study 6. These three sketches are extruded and then intersected with each other to get the individual tooth solid geometry.

Osborne and Laminie’s Partial Dentures. But as a U-shaped plate major connector covers the inclined surfaces, it can only resist a very mauor part of the chewing force.

Study of Deflections in Maxillary Major Connectors: A Finite Element Analysis

Two sets of four differently designed maxillary major connectors palatal plate, U-shaped connetors, palatal strap, and anteroposterior bar were waxed. Yet at the same time, it seems logical to locate the inferior border of these connectors as far inferiorly as possible to avoid interference with the resting tongue and trapping of food substances when they are introduced into the mouth. Out of the six patients that reported interference with chewing, four