Tooth Preparation for Fixed Partial Denture

Tooth Preparation

Amount of Reduction in Tooth Preparation for Fixed Partial Denture

Type of Restoration Facial Reduction Lingual Reduction Incisal / Occlusal Reduction
Acrylic Jacket Crown 0.75 – 1mm shoulder 0.75 – 1mm shoulder 1.5 – 2mm or 2/3 of the incisal 3rd

Porcelain Fused to Metal Fixed Partial Dentures like this, requires 1.2 - 1.5mm facial reduction, 0.75 - 1mm lingual reduction and 1.5 - 2mm incisal reduction.


Type of Restoration Facial Reduction Lingual Reduction Incisal / Occlusal Reduction
Porcelain Fused to Metal Crown / Porcelain Fused to Metal Crown and Bridge 1.2 – 1.5mm shoulder 0.75 – 1mm chamfer Anterior – 1.5 – 2mm
Posterior:
Functional cusp – 1.5 – 2mm
Guiding cusp – 1 – 1.5mm
Complete veneer Metal Crown 0.75 – 1mm chamfer 0.75 – 1mm chamfer 1 – 1.5mm
Acrylic Facing with Metal Backing 0.75 – 1mm shoulder 0.75 – 1mm chamfer Ant. 1.5 – 2mm
Post. 1 – 1.5mm
All Porelain Crown / Ceramics Crown and Bridge 2 mm shoulder 2 mm shoulder 2 mm

Porcelain Fused to Metal Fixed Partial Denture - Lingual View

Written by:
Jesus Lecitona, DMD
Websites: Dental Cost
Dental Implants
PDA Information Committee Member
PDA Pangasinan Chapter
PDA San Juan City Chapter

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4 Responses

  1. Denture Maker says:

    Nice job! Thanks for a good guide of tooth preparation.

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