The composition and type of fixed partial denture

One. The composition of the fixed partial dentures: retainers, poetics, and connectors, composed of three parts

1. Retainer: the production in the abutments and cements the crown post crown, partial crown or inlay, the connection body connected with the bridge, fixed bridge abutment to form a functional whole, and fixed bridge to obtain retention.

2. Pontic: that is, the artificial tooth is part of the fixed bridge to restore form and function of the missing teeth.

3. Connector: is the part between the fixed bridge retainers. : Fixed connection body, the activities connected body

Two. The type of fixed partial dentures

1. According to the relationship between the bridge and the alveolar ridge can be divided into contact, non-contact

2. According to different materials can be divided into the metal bridge, non-metallic bridge, metal - non-metallic bridge

3. Depending on the fixed bridge structure can be divided into fixed bridge, cantilever fixed bridge, fixed bridge, composite fixed bridge

Fixed bridge features:

(1). Retainer and bridge the connection between the form of a fixed connection, abutments, retainers, bridge connected into a fixed overall composition of the new chewing units; the physiological movement of a single abutment into the overall physiological movement

(2). Abutment teeth can withstand larger occlusal force, and both ends of the abutments are sharing the occlusal force more uniform

(3). Extensive clinical application

Semi-fixed bridge features:

(1). the end of the retainer for a fixed connection, the other end of the active connection. Active connection to the body in the bridge section made of the dental equipment bolt body, the chimeric the abutments retainer bolt Road

(2). Uneven both ends of the abutment the stress

(3). Cases for the inclination of the abutments, it is difficult to achieve common place Road

Single-ended fixed bridge features:

(1). only one end of the retainer contact with the fixed connection, the bridge contact with the other side of the adjacent teeth or adjacent teeth to Fixed partial denture maxillary full dentition form a completely free end

(2). Force, resulting in leverage, easy to cause damage of periodontal tissue trauma or retainer loose

(3). Missing teeth and gaps, to withstand the occlusal much abutments have enough supportive and retentive force

Composite fixed bridge features:

(1). A combination of two kinds or more than two kinds of simple fixed bridge

(2). Intervals, including at least two teeth and at least four dental units

(3). Support and retention and the location and shape of the abutment and hard to find a common place Road

Three. The special structure of the fixed bridge: fixed bridge implant; fixed - removable joint bridge; bonded fixed bridge.