How to fix dentures

Having problems with your teeth is a very painful thing. It will cause us to be unable to chew food better, which can easily cause a certain gastrointestinal burden. Installing dentures is the most direct way to treat missing teeth, but there are many types and materials of dentures. Many people are often particularly worried that their dentures will fall off when they eat. In fact, different types of dentures have different fixing methods. Let's learn about how to fix dentures.

How to fix dentures?

(1) Full crowns have the best retention force, and the occlusal convergence should not be too large when used as retainers. The 3/4 crown should have adjacent axial grooves to prevent rotation and dislocation. The key points and line angles of the inlay should be clear.

(2) The retention force of the retainer should be designed to be compatible with the occlusal force, the span of the bridge, and the curvature of the bridge. The longer the span of the bridge, the more curved it is, and the greater the occlusal force, the higher the retention force required of the retainer.

(3) The retention forces of the abutment retainers at both ends of a double-ended fixed bridge should be basically equal. If the retention forces of the retainers at both ends differ greatly, the retainer at the end with poor retention force will tend to loosen. The retainer at the end with strong retention force does not fall off temporarily, so the patient will not easily notice the secondary caries caused by the loose end abutment tooth.

(4) When selecting retainers, it must be considered that each retainer should have a common positioning path.

(5) If the abutment tooth is defective or deformed, it should be repaired when designing the retainer. If the abutment tooth crown already has a filling, the edge of the retainer should cover the filling as much as possible to prevent the filling from loosening and affecting the retention of the retainer.

(6) The design of the retainer should prevent the cusp fracture of the abutment tooth. The extracoronal retainer will not cause cusp fracture because the occlusal surface of the abutment tooth is completely covered with metal. The intra-crown retainer, especially the maxillary bicuspid inlay, is prone to cusp fracture because of its steep buccal and lingual cusps.

(7) Retainer design for teeth with severe crown defects: These teeth are mostly dead pulp teeth. As long as the defect does not extend deep below the gums and the tooth is stable, it should be retained as much as possible. First, after thorough root canal treatment, a retention pin or post is inserted and cemented into the root canal, amalgam or resin is used to form a core shape, and then a full crown retention body is made.

(8) Retainer design for tilted abutment teeth: First, the axial direction of the abutment tooth can be changed by orthodontic means; second, a modified 3/4 crown can be used for retention; third, a telescopic crown retainer can be used for restoration

The above is an introduction to how to fix dentures. After understanding it, we know that different types of dentures have different fixing methods. When choosing dentures, we must choose dentures that suit us based on their appearance and the position of damaged teeth. In addition, we must cherish our teeth in daily life and ensure good oral hygiene.