Our SOP

Our SOPs

SOP: Cleaning, Disinfection, Storage & Transportation of
Dental Crowns

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Step 1: Final Quality Inspection

Before packaging:

  • Verify patient name and case ID.
  • Check marginal integrity.
  • Check occlusion and contacts.
  • Inspect shade and surface finish.
  • Remove any polishing debris.
  • Inspect under magnification (2.5×–5×).
Step 2: Initial Cleaning

Remove contaminants such as:

  • Zirconia dust
  • Polishing paste
  • Stone particles
  • Fingerprints
  • Saliva from articulators (if applicable)

Ultrasonic Cleaning

  • Use distilled or deionized water.
  • Add a laboratory-approved neutral cleaning solution if needed.
  • Clean for 3–5 minutes.
  • Rinse thoroughly.

For implant restorations, ensure all screw channels are flushed clean.

denture53584939
Step 1: Final Quality Inspection

Before packaging:

  • Verify patient name and case ID.
  • Check marginal integrity.
  • Check occlusion and contacts.
  • Inspect shade and surface finish.
  • Remove any polishing debris.
  • Inspect under magnification (2.5×–5×).
Step 2: Initial Cleaning

Remove contaminants such as:

  • Zirconia dust
  • Polishing paste
  • Stone particles
  • Fingerprints
  • Saliva from articulators (if applicable)

Ultrasonic Cleaning

  • Use distilled or deionized water.
  • Add a laboratory-approved neutral cleaning solution if needed.
  • Clean for 3–5 minutes.
  • Rinse thoroughly.

For implant restorations, ensure all screw channels are flushed clean.

Step 3: Drying

Dry using:

  • Oil-free compressed air
  • Lint-free wipes
  • Clean drying cabinet
Avoid touching the intaglio surface after cleaning.
Step 4: Disinfection

The disinfection method depends on the restorative material.

Material Recommended Method
Zirconia EPA- or hospital-grade disinfectant compatible with dental prostheses, following the manufacturer's contact time
Lithium Disilicate Manufacturer-approved disinfectant; avoid prolonged exposure to harsh chemicals
PFM Hospital-grade disinfectant
Metal Crown Hospital-grade disinfectant
PMMA Compatible surface disinfectant; avoid solvents that may damage acrylic
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Step 3: Drying

Dry using:

  • Oil-free compressed air
  • Lint-free wipes
  • Clean drying cabinet
Avoid touching the intaglio surface after cleaning.
Step 4: Disinfection

The disinfection method depends on the restorative material.

Material Recommended Method
Zirconia EPA- or hospital-grade disinfectant compatible with dental prostheses, following the manufacturer's contact time
Lithium Disilicate Manufacturer-approved disinfectant; avoid prolonged exposure to harsh chemicals
PFM Hospital-grade disinfectant
Metal Crown Hospital-grade disinfectant
PMMA Compatible surface disinfectant; avoid solvents that may damage acrylic
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Step 5: Do NOT Steam Sterilize in the Lab (Routine Crowns)
Routine zirconia, ceramic, and PFM crowns are not typically steam sterilized by the laboratory. before shipment because:
  • The restoration may be handled again during seating.
  • Packaging is generally not maintained as a sterile barrier.
  • The clinic should follow its own infection-control protocol before try-in or cementation.
Step 6: Handling

Technicians should:

  • Wear clean nitrile gloves.
  • Avoid touching the internal surface
  • Use clean tweezers where appropriate.
  • Handle over a clean tray.
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Step 5: Do NOT Steam Sterilize in the Lab (Routine Crowns)
Routine zirconia, ceramic, and PFM crowns are not typically steam sterilized by the laboratory. before shipment because:
  • The restoration may be handled again during seating.
  • Packaging is generally not maintained as a sterile barrier.
  • The clinic should follow its own infection-control protocol before try-in or cementation.
Step 6: Handling

Technicians should:

  • Wear clean nitrile gloves.
  • Avoid touching the internal surface
  • Use clean tweezers where appropriate.
  • Handle over a clean tray.
Step 7: Packaging

Primary Container :

  • Individual crown box
  • Silicone holder
  • Foam-lined container

The restoration should not move during transport.

Secondary Packaging :

  • Sealed laboratory pouch
  • Zip-lock medical pouch
  • Tamper-evident bag (preferred)
Include:
  • Prescription copy
  • Shade details
  • Material information
  • Batch number (if applicable)
  • Cementation recommendations (optional)
Step 8: Labeling
Every package should include:
  • Patient Name
  • Clinic Name
  • Doctor Name
  • Tooth Number
  • Restoration Type
  • Material
  • Shade
  • Case Number
  • Date of dispatch
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Step 7: Packaging

Primary Container :

  • Individual crown box
  • Silicone holder
  • Foam-lined container

The restoration should not move during transport.

Secondary Packaging :

  • Sealed laboratory pouch
  • Zip-lock medical pouch
  • Tamper-evident bag (preferred)
Include:
  • Prescription copy
  • Shade details
  • Material information
  • Batch number (if applicable)
  • Cementation recommendations (optional)
Step 8: Labeling
Every package should include:
  • Patient Name
  • Clinic Name
  • Doctor Name
  • Tooth Number
  • Restoration Type
  • Material
  • Shade
  • Case Number
  • Date of dispatch
Dental mold and artificial teeth displayed on a reflective black surface for educational purposes.
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Step 9: Do Storage Before Dispatch
Store in:
  • Closed cabinet
  • Dust-free environment
  • Room temperature
  • Low humidity
  • Away from chemicals
  • Away from direct sunlight
Do not store near plaster trimming or polishing areas.
Step 10: Transportation

Transport in :

  • Rigid transport box
  • Shock-resistant case
  • Courier container with padding

Avoid :

  • Excessive vibration
  • High heat
  • Moisture
  • Heavy loads on top of the package
Step 11: Delivery to Clinic
The clinic should receive:
  • Crown in sealed packaging
  • Work authorization
  • Material identification
  • Shade details
  • Implant component details (if applicable)
Instructions for the Dental Clinic
Recommend that the clinic:
1. Inspect the sealed package on arrival.
2. Disinfect the restoration according to its infection-control protocol and the material manufacturer’s recommendations before intraoral try-in.
3. Clean again after adjustments before final cementation.
Close-up of a woman holding a clear dental aligner, showcasing dental health and a bright smile.

Our Expertise

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Advanced Dental Solutions

At AstraDentLab, we are committed to delivering exceptional dental solutions through precision, innovation, and advanced technology. Our expertise lies in creating high-quality dental restorations that meet the unique requirements of dental professionals and their patients.
With a focus on accuracy, aesthetics, and functionality, our skilled dental technicians combine modern techniques with years of experience to achieve outstanding results. Every restoration is carefully crafted using premium materials and advanced workflows to ensure superior quality and patient satisfaction.

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Digital Dentistry & Innovation

We embrace the latest advancements in dental technology to improve accuracy, efficiency, and consistency in our workflow. From digital impressions to advanced designing techniques, we integrate innovation into every stage of the restoration process.
Our commitment to continuous improvement helps us deliver predictable outcomes and support dentists with reliable dental laboratory solutions.

A close-up view of a dentist polishing a dental mold with precision. Ideal for dentistry or healthcare topics.

Quality & Precision

Quality is at the heart of everything we do at AstraDentLab. Each case undergoes detailed attention and strict quality checks to ensure excellent fit, durability, and natural aesthetics.
We believe in building long-term partnerships with dental professionals by providing dependable service, timely delivery, and exceptional craftsmanship.

    Call Today

    +91 81241 90999

    Send Your Inquiry

    info@astradentlab.in

    Astradent Dental Solutions

    No-48, 1st Floor, First Main Road, Nanganallur,Chennai - 60006

    Partner With Us
    Call Today

    +91 81241 90999

    Send Your Inquiry

    info@astradentlab.in

    Astradent Dental Solutions

    No-48, 1st Floor, First Main Road, Nanganallur,Chennai - 60006

    Partner With Us
    WhatsApp
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