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CGI Full Spectrum Stains — Technical Guide
Technical Guide

CGI Full Spectrum
of Stains

A compact but versatile system of gum and characterization colors that lets dental technicians individualize soft tissue and tooth structure with control and repeatability.

Universal Stains A–D Gum Stains Characterization Zirconia Pink Ceramics

Understanding the CGI Stain System

The CGI stain range is divided into three intuitive groups: A–D universal stains, dedicated gum stains, and a full palette of characterization stains for enamel and dentin effects. This structure makes it easy to move from basic shade corrections to complex pink‑white esthetics without switching systems.


Universal Stains A–D

These stains can be used as universal modifiers that follow the logic of the classical A–D ranges: A (reddish‑brown), B (reddish‑yellowish), C (grayish), and D (reddish‑grayish).

A
Reddish-Brown Range · A1–A4

Use Shade A to modify restorations within the A‑range, representing reddish‑brown teeth.

  • Apply thin washes in cervical thirds to increase warmth and match A2–A3 necks.
  • Intensify fissures and proximal areas on A3–A4 for a slightly older, deeper appearance.
  • Combine with Brown or Ocher stains when matching worn A‑range molars.
B
Reddish-Yellow Range · B1–B4

Ideal for B‑range teeth, characterized by a lighter, more reddish-yellow hue.

  • Apply over middle and incisal thirds to reproduce warm, creamy body of B1–B2.
  • On B3–B4, increase intensity in cervical areas; keep incisal thinner to preserve value.
  • Works well over bright zirconia cores to gently neutralize excessive whiteness.
C
Grayish Range · C1–C4

Shade C targets C‑range shades, which shift toward a cooler, grayish hue.

  • Apply as a veil over the entire surface to reduce chroma and create a desaturated look.
  • Concentrate in proximal and cervical zones to mimic darker C3–C4 teeth.
  • Combine with blue or gray stains at the incisal to enhance the cool character.
D
Reddish-Gray Range · D2–D4

Designed for the D‑group, where teeth show a mix of reddish and grayish components.

  • Use it to warm up grayish restorations while maintaining the muted D‑range appearance.
  • Place more product at cervical and interproximal areas for D3–D4 depth.
  • A thin wash of Shade D over a C‑based build‑up helps bridge hue gaps in the arch.

Gum Stains: Building Life‑like Soft Tissue

CGI Gum Stains are dedicated pinks and reds that reproduce the subtle variations of natural gingiva. Their range covers from delicate blushes to intense, vascular tones, allowing you to individualize everything from a single pontic site to a full hybrid restoration.

Used in combination, these shades allow you to sculpt three‑dimensional soft tissue: light tones on eminences, mid‑tones in body areas, and Coffee, Blackberry, Carmine, or Cranberry in protected sulci and embrasures.

Blush
Soft, low-chroma pink for youthful, healthy gingiva.
Orchid
Neutral light pink, ideal as a base for root eminence and papillae.
Guava
Slightly warmer pink for more saturated soft tissue.
Tangerine
Orange-pink that blends gingiva into warm tooth shades.
Pomegranate
Cooler pink for anterior areas with slight bluish-red tissue.
Chestnut
Muted mauve-brown for sulcus depth and shadow zones.
Sunset
Warm mid-tone transitioning lighter to darker gum areas.
Squash
Orange-based tone excellent at the tooth–gingiva junction.
Coffee
Brownish modifier to deepen papilla tips and interdental shadows.
Blackberry
Deep violet-red for vascular effects and high-chroma areas.
Carmine
Intense red for accentuating marginal gingiva in high-smile lines.
Cranberry
Strong dark pink-red for the most chromatic gum sections.

Characterization Stains: Micro‑Detail for Teeth

CGI characterization stains provide a full spectrum of colors to reproduce enamel, dentin, and age‑related changes. They are designed to be layered in thin washes, so the underlying structure remains visible while the surface acquires depth and vitality.

Pink
Cervical gingival reflection or mild root exposure.
Yellow
Warm up incisal thirds or increase chroma in A/B ranges.
Green
Subtle opalescent halos and non-carious cervical lesions.
Pistachio
Soft green-beige for enamel cracks and worn incisal edges.
Ivory
Light neutral for enamel highlights and ridges.
Orange
Occlusal fissures, dentin exposure, nicotine-like discolorations.
Ochre
Deeper warm tone for age effects at cervical and proximal zones.
Brown
Classic fissure and crack stain that emphasizes morphology.
Violet
Enhances opalescence in incisal third and mamelon areas.
Blueberry
Cool blue for translucent incisal edges and halo effects.
Blue
Pronounced incisal translucency or internal cracks.
Azure
Medium blue accent to modulate opalescent zones.
Alabaster
Very light neutral for highlighting lobes and surface texture.
White
Decalcifications, fluorosis spots, and line angles.
Gray
Reduces value locally; hides connectors or substructures.
Black
Deep fissures, strong cracks, or internal stain lines.

Practical Tips for Daily Cases

When working on a full‑arch zirconia restoration, start with universal stains A–D to set the baseline shade, then add Brown, Ocher, and Yellow to define fissures and cervical warmth. Incisal areas can be individualized with Blueberry, Blue, or Azure, layered very thinly to avoid over‑darkening.

For pink ceramics, use Orchid or Blush as a foundation, then intensify papillae with Carmine or Cranberry while adding Coffee or Chestnut into sulci for depth.

Because all stains belong to the same CGI system, they fire predictably together, which reduces trial‑and‑error and helps you document repeatable protocols. With a small, well‑organized palette like this, technicians can standardize their approach and still offer highly customized esthetics for each patient.

Whether you are completing a single anterior crown or a screw‑retained full‑arch hybrid, the CGI stain collection provides the tools to fine‑tune color, texture, and vitality with confidence.