Post on 19-Jan-2017
Embed Size (px)
MAJOR CONNECTORS Presented by, Silpa Abraham Ist year MDS
INTRODUCTIONThe designing of RPD varies according to the type of support and also it is easier for dentist to convey information to lab. To understand designing of RPD, knowledge about components is a must.Each component of a removable partial denture has a name descriptive of function.
COMPONENTS OF RPD
MAJOR CONNECTORMINOR CONECTORRESTSDIRECT RETAINERS /CLASPSINDIRECT RETAINERSONE OR MORE DENTURE BASES IN CONJUNCTION WITH PROSTHETIC TEETH3
MAJOR CONNECTORSA major connector is that part of a partial removable dental prosthesis that joins the components on one side of the arch to those on the opposite side. GPT-8
Therefore, all components ae attached to the major connector either directly or indirectly.
CROSS-ARCH STABILITYResistance against dislodging or rotational forces obtained by using a partial removable dental prosthesis design that uses natural teeth on the opposite side of the dental arch from the edentulous space to assist in stabilization. GPT-8
MAXILLARY MAJOR CONNECTORS
Narrow half ovalThickest point at the centerBar is curved; no sharp angles
If used,Limited to short span Class III applicationsPlacement not anterior to second premolar
Advantages And Disadvantages:
most versatileWide band metal with thin cross-sectional areaAnteroposterior dimension