Sulcus Impression Tip Gum Separation Mechanism
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Solution Overview
Problem
Existing dental impression techniques are time-consuming and traumatic to gingival tissues, often causing bleeding and incomplete impressions due to the need for packing materials that allow seepage and hinder precise material placement in the sulcus area.
Innovation Solution
A sulcus impression tip with a gripping portion, discharge tip, and needle cannula that allows precise placement of dental impression material by separating the gum from the tooth, eliminating the need for packing materials and preventing rotation for accurate control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If packing material or gingival retraction cord is used to separate the gum from the tooth, then access to the sulcus and margin line is improved, but the gingival tissues are traumatized and bleeding occurs
Solution Approach 1:
The invention extracts the harmful packing material from the procedure entirely. Instead of using cord or packing to separate the gum from the tooth, the dispensing tip directly places impression material into the sulcus area, eliminating the traumatic separation step while still achieving access to the margin line.
Solution Approach 2:
The dispensing tip acts as an intermediary device that delivers impression material directly to the sulcus area without requiring mechanical separation of the gingival tissues. The tip design allows material placement through the gingival opening without traumatizing the tissues.
2Device complexity
If packing material is removed, then the procedure is simplified, but seepage begins and impression material cannot adhere properly
Solution Approach 1:
The invention performs preliminary action by placing the impression material directly into the sulcus area before any seepage can occur. The dispensing tip delivers material precisely to the margin line area, ensuring proper adhesion and filling before the gingival tissues have a chance to seep or close off the area.
Solution Approach 2:
The dispensing tip design provides local quality by delivering impression material with specific properties (viscosity, placement precision) directly to the sulcus area where adhesion is critical. The tip geometry controls material flow to ensure proper filling of the margin line area without requiring tissue separation.
3Device complexity
If conventional dispensing methods are used, then the procedure is simple, but precise placement of impression material in the sulcus area is hindered
Solution Approach 1:
The dispensing device is segmented into distinct functional zones: a gripping portion for handling, a discharge tip for material ejection, and a needle cannula for precise sulcus access. This segmentation allows each component to be optimized for its specific function while maintaining overall device simplicity.
Solution Approach 2:
The invention adds a dimensional aspect to material placement by using a needle cannula that extends through the discharge tip, allowing precise three-dimensional positioning of the impression material tip within the sulcus area. This enables accurate placement at the margin line while keeping the main body of the device simple and easy to grip.
Data Source
AI summary
A sulcus impression tip for injecting dental impression material for making dental impressions. The tip includes a body having a gripping portion and a discharge tip having a bore there through which permits a friction fit with the outside diameter of needle cannula. The needle cannula extends approximately 2 millimeters past a distal end of the discharge tip. The body further defines an angle for holding the gripping portion to permit the discharge tip and needle cannula to be positioned for easy access in the oral cavity by the dentist. The discharge tip is sized and shaped to separate the gum from the tooth in the selected region so that the needle cannula is positioned to permit exact positioning for placement of the dental impression material along the sulcus.