Dentition defect fixed partial denture

Fixed partial denture repair dentition in one or several missing teeth, anatomy and physiological function of a prosthesis, also known as a fixed bridge. Usually based on a fixed partial denture structure is divided into a double-ended fixed partial dentures, semi-fixed partial dentures, fixed cantilever prostheses. Clinically used materials are divided into casting fixed dentures, the swaged fixed partial dentures and metal ceramic fixed partial dentures.

One. Indications

1. Is generally believed that the 20-55 year-old who can be the most appropriate age is 20-45 years old, less than 17 years of age are generally not considered.

Two. The number of missing teeth should not be too much, generally assume a missing teeth than the two abutments.

3. Lack of alveolar ridge fullness or fullness.

4. Abutment teeth, crowns, large, straight root, thick, long, tooth position.

Two. Production steps

1. Cast fixed partial dentures and metal ceramic fixed partial dentures.

(1). the abutments Select: periodontal health, supporting role; form tall crown root solid retention role; the location of the abutments is, in place.

(2). the decision of the number of abutments: In general, choose a double-ended on both sides of the missing teeth do abutments, special circumstances can be dental equipment used single-ended fixed.

(3). Tooth preparation: ask the same casting crowns and metal-ceramic crowns.

(4). take an impression of the irrigation model: Preparation of abutment teeth after gingival retraction cord compression, dentition impression silicone impression material to take, anhydrite irrigation model.

(5). Wax pattern production: in the model of the prepared teeth coated with a separating agent, wax-type placement sprue.

(6). Embedding, casting: Casting phosphate-bonded material embedded, high-frequency centrifugal casting machine.

(7). Bridge test together: casting the completed bridge sandblasting, cleaned, polished after the trial together.

(8). Non-metallic part of the production: The production of plastic bridge is the bridge self-curing or heat curing resin system. Burn attached to Fixed partial denture maxillary full dentition porcelain production, the use of painted porcelain, burn attached to the method of making a fixed bridge.

(9). Test together, cements.

2. The swaged fixed denture.

(1). Tooth preparation: with swaged to metal crowns.

(2). take an impression of irrigation model: to use seaweed sodium impression paste to take an impression of ordinary gypsum filling mode.

(3). the retainer’s production: swaged crown.

(4). Retention test together: the swaged crown clean abutments after the trial co-

(5). take a collection mode: all solid bit body after the trial co satisfied modulo.

(6). Bridge and connecting body production: including the hammer made the metal forworn panel, welding the bridge, the formation of the plastic part of the bridge.

(7). Test together, cements.