Artificial Tooth Azimuth and Distance Ratios for Occlusion
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Solution Overview
Problem
Existing artificial teeth lack clear specifications for the three-dimensional positional relation and contact region of cusp tips and fossae, leading to difficulties in arranging maxillary and mandibular prosthetic posterior teeth pairs, resulting in interference or gaps during occlusion, which increases the time and labor required for denture manufacturing.
Innovation Solution
The artificial teeth are designed with specific azimuth settings and ratios of distances from the origin to the mesial, distal, buccal, and lingual surfaces for the cusp tips and pits, ensuring precise contact points between corresponding teeth, eliminating the need for grinding adjustments during arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If artificial teeth are arranged without clear specifications for three-dimensional positional relation and contact region, then the arrangement process is simple, but interference or gaps occur during occlusion requiring repeated adjustment
Solution Approach 1:
The patent specifies precise parameters including azimuth angles and distance ratios from the origin to mesial, distal, buccal, and lingual surfaces for cusp tips and pits. These parameter definitions enable accurate reproduction of three-dimensional positional relations and contact regions, eliminating interference and gaps during occlusion without requiring complex adjustment procedures.
Solution Approach 2:
The artificial teeth are pre-designed with predetermined three-dimensional positional relations and contact regions between maxillary and mandibular teeth. This preliminary configuration ensures proper occlusion from the beginning, eliminating the need for repeated grinding adjustments during the arrangement process.
2Reliability
If artificial teeth require repeated adjustment and correction during arrangement, then the occlusion can be optimized, but the time and labor for denture manufacturing increases significantly
Solution Approach 1:
The patent provides predetermined three-dimensional positional relations and contact regions in the artificial tooth design before manufacturing. This preliminary configuration ensures that when the teeth are arranged, the occlusion is already optimized, eliminating the need for repeated grinding adjustments and significantly reducing manufacturing time and labor.
Solution Approach 2:
The artificial teeth are designed to be self-aligning with predetermined contact points between maxillary and mandibular teeth. This self-service feature ensures proper occlusion automatically during arrangement without requiring extensive manual adjustment and correction by the technician.
3Ease of operation
If the buccal cusp of mandibular posterior teeth and corresponding fossa of maxillary posterior teeth are not precisely positioned, then the tooth arrangement is flexible, but interference between adjacent maxillary posterior teeth occurs or gaps are formed
Solution Approach 1:
The patent defines specific parameters including azimuth angles and distance ratios that precisely determine the three-dimensional positional relation between cusp tips and fossae. These parameter specifications ensure accurate contact regions between mandibular and maxillary teeth, preventing interference and gaps while maintaining ease of arrangement through standardized dimensions.
Data Source
AI summary
Artificial teeth of upper and lower jaws, allowing easy operation by clarifying the three-dimensional positional relation of cusp tips and pits to contact with each other in occlusion. Each pair of artificial teeth may include cusp tips and pits, and the positional relation of the cusp tips and pits are set appropriately.