Via VII — Prosthodontia Fixa

Fixed ProsthodonticsProsthodontia Fixa — the discipline of restorations that stay

One digital pathway from preparation to seating — scan, design, select, mill, sinter & seat. Single crowns, inlays, veneers and long-span bridges in zirconia, glass ceramic or PMMA, on a thread of data that runs from chairside to furnace without leaving the Auralis workflow.

CORONA PONTICUM DENS PRAEPARATUS
Via VII-a — Corona, ponticum et dens praeparatus, sectio
The Pathway

Preparation to seating, one digital thread

Every stage hands its data to the next — the scan becomes the design, the design selects the material, the material sets the milling strategy, and the sintering cycle finishes what the preparation began.

01
Scan Prep, antagonist & bite captured in minutes
02
Design Margin, anatomy, contact & occlusion in CAD
03
Select Zirconia, glass or PMMA — matched to zone & span
04
Mill 5-axis milling faithful to the design
05
Sinter & Seat Speed sinter, characterise, try-in & cement
Stage 01 — Scan

Capture the preparation once, completely

A digital impression replaces the tray: the prepared tooth, the adjacent contacts and the opposing dentition are captured intraorally in minutes, with the bite registered on the same scan path. Margin clarity, undercuts and occlusal clearance are checked on screen before the patient leaves the chair.

Conventional workflows stay welcome: alginate or silicone impressions and stone models are digitised on the bench scanner, so referral cases and remakes enter the same digital file.

Auralis at this stage
Auralis Scan IO Intraoral scanner — preparation, contacts & bite captured chairside, straight into the case file Auralis Scan Lab Bench scanner — conventional impressions & stone models digitised into the same workflow
Margin Review On-screen check of margin line, undercuts & occlusal clearance before design begins
Stage 02 — Design

Design around the margin line

The case opens in Auralis Studio with the preparation already oriented and the antagonist registered. The margin line is traced and locked first — everything else is built around it: anatomy from the tooth library, proximal contacts set to the neighbours, occlusion adjusted against the bite scan.

For bridges, connector cross-sections are sized to the span and to the material selected at Stage 03 — a posterior long-span bridge carries the bulk it needs (connectors in the ≥9 mm² class, by material tier) before it ever reaches the mill.

Auralis at this stage
Auralis Studio CAD Crown & bridge design — margin tracing, anatomy library, contact & occlusion tools
Design Output One nesting-ready file to Stage 04 — orientation, sprue positions & shrinkage allowance included
Stage 03 — Select

The right material for the zone

Fixed prosthodontics is a material decision as much as a shape decision: translucency where the light passes, strength where the load concentrates, and a provisional that protects the preparation while the final work is made. The table is the Auralis selection logic.

Restoration & site Recommended material Why it fits
Anterior single crowns Lumen High translucency with a layered gradient — reads like natural enamel in the aesthetic zone
Glass-ceramic anterior crowns Glass Ceramic Chosen when the abutment shade is normal and adhesive bonding is possible — maximum translucency in the aesthetic zone
Anterior three-unit bridges Glass Ceramic · Lumen Glass ceramic only within its boundary — short anterior spans with adequate connector cross-section; beyond that, Lumen zirconia carries the bridge
Posterior single crowns Multi The all-round balance of strength and translucency for everyday posterior load
Posterior bridges & long spans Forte High strength and fracture resistance where connectors carry the load — posterior bridge connectors sized to the ≥9 mm² class by material tier
Veneers, inlays & onlays Glass Ceramic Etchable and bondable — conservative preparations held by adhesion rather than bulk
Post-and-core crowns Glass Ceramic · Lumen Fibre post where aesthetics and a dentine-like modulus matter — crowned in glass or Lumen; cast metal post where the canal is short or the load is high — masked under zirconia
Provisional crowns & bridges PMMA Milled chairside or in the lab — protects the preparation and previews the design until seating day
Stage 04 — Mill

From disc to restoration in one clamping

The nesting file loads onto Auralis Mill: five-axis toolpaths carve the full anatomy — occlusal fissures, marginal ridges, connector curves — out of zirconia, glass ceramic or PMMA. Mill 5X and Mill 5X Duo cover dry milling for zirconia and PMMA as well as wet milling for glass ceramic, so single crowns and long-span bridges leave the disc with margins intact.

For two-visit cases and long-span work, a milled PMMA provisional is seated while the definitive restoration is made — holding the space, protecting the preparation and previewing the design until seating day.

Auralis at this stage
Auralis Mill 5X 5-axis CNC milling — crowns, bridges & frameworks from zirconia, glass & PMMA Auralis Mill 5X Duo Additional 5-axis capacity for mixed-material schedules
Provisional in PMMA Milled temporary for two-visit & long-span cases, worn until seating day
Stage 05 — Sinter & Seat

Forty minutes to the final crown (single crowns & short spans)

Sinter Flash brings zirconia to full density on a speed cycle of about forty minutes (single crowns and short spans) — the single-visit zirconia crown stops being a promise and becomes a schedule. Staining and glazing then carry the prescribed shade into the surface, from cervical depth to incisal translucency.

At the chair the pathway closes: try-in, contact and occlusion check, then fixation to the material's protocol — adhesive bonding for glass ceramic, conventional or adhesive cementation for zirconia. The seating record is filed into the same case that began at Stage 01.

Auralis at this stage
Auralis Sinter Flash Speed sintering — zirconia to full density on a ≈40-minute cycle (single crowns & short spans)
Stain & Glaze Characterisation and glaze firing carry the prescribed shade to the surface
Seat & Record Try-in, fixation and the seating record close the case file
The Solution Kit

The whole workflow, on one purchase list

The five stages collapse into a single kit. Every line links to the product page — specify the full crown & bridge workflow or start with one stage and grow.

Stage What happens Auralis products
01 · Scan Preparation, contacts & bite captured; impressions & models digitised Scan IO · Scan Lab
02 · Design Margin locked; anatomy, contact & occlusion designed; connectors sized to span & material Studio CAD
03 · Select Material matched to site & span — translucency, strength or provisional duty Lumen · Multi · Forte · Glass · PMMA
04 · Mill 5-axis milling of crowns & bridges; PMMA provisional for two-visit & long-span cases Mill 5X · Mill 5X Duo
05 · Sinter & Seat ≈40-minute speed sinter (single crowns & short spans); stain & glaze; try-in, fixation & seating record Sinter Flash
Indications & Scenarios
Single crowns Inlays Veneers Fixed bridges Long-span bridges Post-and-core crowns
Related Pathways

Bring the crown & bridge workflow in-house.

From the first scan to the seated crown — our team maps the kit to your case mix, your materials and your lab across Southeast Asia.

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