Major connectors

By Dr.Swathi Pai on Saturday 17 January 2009 with 0 comments



A major connector connects one side of the dental arch to the other side. It’s the primary component of the RPD (the majority of rigidity).


4 mandibular major connectors:

  1. lingual bar

  2. lingual plate

  3. continuous bar retainer

  4. labial bar


Lingual bar:

-should be 4mm from gingival margin

-should be ½ pear shaped and 4mm thick occl/gingivally (greatest bulk should be in the inferior 1/3) and 2mm thick anteroposteriorly.

-should be above movable tissues (vestibule must be 7mm)

-inferior border should be slightly rounded so it does not impinge on the lingual tissue when denture base is rotated inferiorly under occlusal loads


Lingual plate:

-use if you have a vestibule less than 5mm

-indications: (4)

-high lingual frenum

-class I situations where ridges have undergone excessive vertical resorption

-to stabilize periodontally weakened teeth

-when anticipating possible replacement of mandibular anterior teeth


Labial bar:

-should be 3mm below gingival margins

-indications: (2)

-use with lingually inclined mandibular anterior teeth

-can use with large lingual tori

Category: Prosthodontics Notes

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