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Crowns: Natural tooth crowns can only be maintained by capping a tooth, if a great part of their substance has been destroyed. False strain of the tooth is eliminated by building up the chewing surface. An increase of agomphiasis is avoided by limitation of movement and strain distribution in interlocking. Single crowns: The means of choice in the anterior tooth area • In case of fractured incisor rims • In case of more than three fillings in one tooth • For protection of the remaining substance of the tooth • Replacement for big carious defects • Replacement of used chewing surfaces where more than one third of the tooth substance is lost • Shape and situation correction of the tooth Bridge replacement: • Connects single teeth or tooth groups, crossing a tooth space • Replaces the continuity of the chewing surfaces and provides an even distribution of the chewing    pressure onto all teeth • Avoids the growing out of teeth into the counter jaw in case of missing support • Avoids overturning of the remaining teeth For bridge replacements there are generally the same materials and veneer possibilities as for single crowns. All variants can nearly always be combined with each other. For instance a rear bridge anchor can be created unveneered in metal, while the bridge links and the front bridge anchor are completely veneered. In contrast to the optical design the functional creation of the bridge is always subject to the treating dentist. For the fixed partial payment granted by health insurance it is stipulated that crowns and bridges of the upper jaw may be veneered with a half-shell up to the 5th tooth from the middle of the jaw. The incisor rim is continuously realised in dental colour up to the rear side so that no metal can be seen while speaking or laughing. The chewing surface and the rear surface of the tooth remain unveneered in metal. For the lower jaw this rule is valid up to the 4th tooth from the middle of the jaw. If the patient desires a further veneering of his crowns or bridges, this is possible by an increased private liquidation rate. We can consult you in this respect. Variations of crowns: 1. Complete cast crown The complete enamel cap of the tooth is replaced by a cast metal crown corresponding to the anatomic shape of the tooth. Metal: non-metal, silver alloys, gold alloys, titanium 2. Partial veneer crown The partial veneer crown is a complete cast crown which is veneered in the visible area by a substance in natural tooth colour. Possible veneer materials are resin resp. ceramics. 3. Complete veneer crown This crown consists of a metal framework (cap) made of a fire-bonded alloy on which a ceramic mass is fire-bonded in optically suitable layering. The complete enamel layer of the tooth is replaced by ceramic mass. 4. Pivot crown In case of loss of the tooth pulp (nerve) a pivot made of metal or glass fibre is introduced into the tooth root canal. The shape of the reduced tooth is replaced completely or partially by a special dentine-like filling material. The manufactured crown, which can either be without veneering or with partial or complete veneering, is then placed on top of this construction. |