Implant libraries – Basic Parameters and Restrictions

Implant libraries – Basic Parameters and Restrictions

28/02/2024

Introduction

An implant library consists of implant systems containing CAD models used to create abutment kits. Each abutment kit includes design parameters used by 3Shape software for implant planning, implant orientation identification, and abutment design.

This article describes the validation parameters used in Dental System and outlines the production requirements and design restrictions for abutments.

Importance of Regulatory and Production Requirements

All validation parameters have specific value ranges defined in Dental System Control Panel. Some values are locked by the implant provider. Attempting to exceed the specified range or violate preset limitations may lead to restoration instability, component failure, or patient injury.

Dental System operates within validated ranges for abutment height, size, and angle. These ranges also account for restrictions defined by individual implant providers.

The information configured in the implant library is critical to ensuring safe treatment planning and an effective final restoration. Incorrect values or attempts to exceed the recommended range may compromise the design process. In most cases, Dental System prevents the creation of restorations that violate validated parameters.

3Shape strongly recommends using only validated workflows and parameters. CAM output must comply with the design parameters defined in the abutment kit, the patient-specific abutment instructions for use, and the requirements provided by the abutment manufacturer and implant library provider.

Accessing Validation Parameters:

The most important validation parameters and limitations can be reviewed in the implant kit configuration.

Step 1: Open "Dental System Control Panel".

Step 2: Select "Abutments".

Step 3: Select "Implant Systems".

Step 4: Select the required implant system.

Step 5: Select the required abutment kit.

Step 6: Click "Edit".

The implant kit configuration tool opens.

Step 7: Navigate to the design limitations section at the end of the configuration tool.

The design limitations define the restrictions applied to abutments designed with the selected abutment kit.

Images 1-3: design matrix measurements for Customized Abutments and Screw Retained Crowns

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Table 1: Design parameters annotated in images 1-3

Validation Parameters:

Limit Maximum Top Cap Angle - The top cap is validated against the specified maximum angle value. This validation is always performed and cannot be disabled (Figure 6-8, parameter F).

Perform Validation - When enabled, users cannot design abutments that violate the design matrix specifications described below.

Gingival Margin Diameter - The diameter of the gingival portion of the model (Figure 6-8, parameter C) must remain within the specified range.

Gingival Margin Height

  • The height between the base and the bottom of the margin line (Figure 6-8, parameter D) cannot be lower than the minimum value.
  • The height between the base and the top of the margin line (Figure 6-8, parameter H) cannot exceed the maximum value.

Total Height - The total height of the abutment, from the base to the top (Figure 6-8, parameter E), must remain within the specified range.

Top Cap Height - The height between the bottom of the margin line and the top of the model (Figure 6-8, parameter G) must remain within the specified range.

Measure Top Cap Height from the Top of the Margin Line

Introduced in Dental System 2025.

This setting defines whether the top cap height is measured from the top or bottom of the margin line.

Version behavior:

  • Dental System 2023 and earlier: measured from the top of the margin line.
  • Dental System 2024: measured from the bottom of the margin line.
  • Dental System 2025 and later: configurable through this parameter.

Perform Blank Validation - When enabled, users cannot violate design constraints defined by the blank file.

Block User from Continuing on Inner Limit Violation - When enabled, users cannot continue when the design violates constraints defined by the inner limit file.

Allow Angled Screw Hole - When enabled, users can angulate the screw hole within the limitations defined by the implant kit provider.

Maximum Screw Hole Angle - The screw hole is validated against the specified maximum angle value.

Angled Screw Hole Starting Point - Defines where screw hole angulation begins in the abutment design.

Number of Possible Base Rotation Angles - Defines the available connector base rotation positions permitted by the implant kit provider.

Individual Thickness Around Hole - When enabled, users cannot design abutments with a thickness around the screw hole lower than the specified value.

Common Design Restrictions

Abutment Limitations Violated

Different validation messages may appear during the "Abutments" step.

Inner Blank Limit Check Failed / Outer Limit Check Failed

Margin Diameter Is Outside Range

Self-Intersections Detected

Top Cap Height Is Less Than Allowed

Total Height Is Outside Range

 

Parts of the model that violate validation requirements are highlighted in red.

To continue to the next design step, the abutment geometry must be modified so that it complies with the allowed validation range.

The violated area is typically displayed in red.

 

Abutment Top Cap Angle Violated

This message may occur during the "Assembly" step.

The most common cause is that the design exceeds the "Limit Maximum Top Cap Angle" value defined for the selected implant kit.

This validation is always performed and cannot be disabled.

The limitation can be reviewed in:

"Dental System Control Panel" > "Abutments" > "Implant Systems"

To proceed, modify the design so that the angle remains within the limitations of the selected implant kit.

If the value is locked by the implant provider, the design must remain within the defined limits.

Smile Library Considerations

Another possible cause is a smile library that has been designed incorrectly.

If the crown top position is shifted, the initial top cap angle position will also be shifted, reducing the available angulation range.

This can be verified during the "Smile Composer" step using the "Individual Transformation" tool.

If the tool handles are not aligned with the crown, the smile library should not be used.

Validation Error: Some Design(s) Did Not Pass Validation

This message may occur during the "Finalize" step.

Verify that the selected implant kit validation parameters have not been exceeded.

Although some parameters can be modified, they are often predefined and locked by the implant provider.

 


Contact 3Shape Support if you have any further questions.
 
For full information on correct usage consult the official Safety and Setup Guide and the most current Manual.

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