Prosthodontics3rd Year

DESIGN OF REMOVABLE PARTIAL DENTURE

By:Ahmed Ali Abbas

theoptimalsmile.wix.com

MAXILLARY CLASS I TOOTH - TISSUE SUPPORT

Location of the retention: Distal.

Direct Retainers: Bar clasp, back action.

Indirect retainers: Double rest.

Major Connector: Complete palatal coverage.

Base: Maximum support.

MAXILLARY CLASS I

MANDIBULAR CLASS I TOOTH - TISSUE SUPPORT

Location of the retention: Distal.

Direct Retainers: Bar clasp, back action.

Indirect retainers: Double rest.

Major Connector: Lingual bar, lingual plate.

Base: Maximum support.

MANDIBULAR CLASS I

MAXILLARY CLASS II TOOTH - TISSUE SUPPORT

Location of the retention: Distal.

Direct Retainers: Back action, bar clasp,

circumferential.

Indirect retainers: Occlusal rest.

Major Connector: Single broad straps

Base: Maximum support.

MAXILLARY CLASS II

MANDIBULAR CLASS II TOOTH - TISSUE SUPPORT

Location of the retention: Distal.

Direct Retainers: Back action, bar clasp,

circumferential.

Indirect retainers: Occlusal rest.

Major Connector: Bar, lingual plate

Base: Maximum support.

MAXILLARY CLASS III TOOTH SUPPORT

Location of the retention: Distal, mesial.

Direct Retainers: Circumferential, back action,

bar clasp.

Indirect retainers: Circumferential.

Major Connector: Bar, straps.

Base: Minimal extension.

MAXILLARY CLASS III

MANDIBULAR CLASS III TOOTH SUPPORT

Location of the retention: Distal, mesial.

Direct Retainers: Circumferential, bar clasp,

back action.

Indirect retainers: Circumferential.

Major Connector: Bar.

Base: Minimal extension.

MAXILLARY CLASS IV TOOTH SUPPORT

Location of the retention: Mesial, distal.

Direct Retainers: Back action, bar clasp,

circumferential.

Indirect retainers: Circumferential.

Major Connector: U- shape, bar.

Base: Minimal or maximal extension.

MAXILLARY CLASS IV

MANDIBULAR CLASS IV TOOTH SUPPORT

Location of the retention: Mesial, distal.

Direct Retainers: Bar clasp, back action,

circumferential.

Indirect retainers: Circumferential.

Major Connector: Lingual bar.

Base: Minimal or maximal extension.

MOVEMENTS OF REMOVABLE PARTIAL DENTURES

CLASS I AND II

MOVEMENTS OF REMOVABLE PARTIAL DENTURES

CLASS I AND II

MOVEMENT HOW TO AVOID

Intrusion Occlusal support.

ExtrusionRetentive arm of direct retainers.Indirect retainers.

Ship (Hinge)Indirect retainers.Retentive arm of direct retainers.

Bounce Indirect retainers.

MOVEMENTS OF REMOVABLE PARTIAL DENTURES

MOVEMENTS OF REMOVABLE PARTIAL DENTURES

CLASS III

MOVEMENT HOW TO AVOID

Intrusion Occlusal support.

ExtrusionRetentive arm of direct retainers.Indirect retainers.

Ship (Hinge)Indirect retainers.Retentive arm of direct retainers.

MOVEMENTS OF REMOVABLE PARTIAL DENTURES

CLASS IV

MOVEMENT HOW TO AVOID

Ship (Hinge) Mesial and distal retention.

Intrusion Occlusal support.

ExtrusionRetentive arm of direct retainers.Mesial and distal retention.