Crown lengthening

Biologic width is the natural distance between the base of the gingival sulcus (G) and the height of the alveolar bone (I). The gingival sulcus (G) is a little crevice that lies between the enamel of the tooth crown and the sulcular epithelium. At the base of this crevice lies the junctional epithelium, which adheres via hemidesmosomes to the surface of the tooth, and from the base of the crevice to the height of the alveolar bone (C) is approximately 2 mm.

These two X-ray films depict the teeth of the upper right quadrant. In the upper film, there is a tooth, #5, with a large, defective DO composite restoration. The lower film depicts the ideal bone level after a crown lengthening procedure has been completed, as well as the margin of the prosthetic crown in relation to the reduced height of bone. Note: this is a dramatization of the procedure. The lower film is a digital manipulation of the upper film, and not an actual film of the teeth after a crown lengthening procedure and crown cementation have been performed.

Crown lengthening is a surgical procedure performed by a dentist to expose a greater amount of tooth structure for the purpose of subsequently restoring the tooth prosthetically. This is done by incising the gingival tissue around a tooth and, after temporarily displacing the soft tissue, predictably removing a given height of alveolar bone from the circumference of the tooth or teeth being operated on. While some general dentists perform this procedure, others frequently refer such cases to periodontists.

单词	Crown lengthening
释义	Crown lengthening 英语百科 Crown lengthening Crown lengthening is a surgical procedure performed by a dentist to expose a greater amount of tooth structure for the purpose of subsequently restoring the tooth prosthetically. This is done by incising the gingival tissue around a tooth and, after temporarily displacing the soft tissue, predictably removing a given height of alveolar bone from the circumference of the tooth or teeth being operated on. While some general dentists perform this procedure, others frequently refer such cases to periodontists.
随便看	Commanders in Chief的意思 commandery的意思 command的意思 command的意思 command esteem的意思 commandeth的意思 command execution unit的意思 command exit的意思 command extracting circuit的意思 command facility的意思 command factor的意思 command fault的意思 command fiber的意思 command field的意思 Command file的意思 command file application的意思 command file name的意思 command file processing的意思 command file processor的意思 command file to terminal interplay的意思 command flag的意思 command following的意思 command format的意思 command frame的意思 command frame command phase的意思