11
4 Product function and operation
4.1 Usage requirements
4.1.1 The operation should according to the manual.
4.1.2 The dentists should have the knowledge of teeth position and average length
and the skill to operate the device.
4.1.3 A fully exposed access cavity to show the pulpal cabin.
4.1.4 A X-ray photo to show the whole length and root canal of the teeth.
4.1.5 The endo file should not be too big or too small to avoid cutting through the
apical foramen.
4.1.6 Mark an anatomized symbol on the diseased tooth and memorize it on the case
history. This symbol should be marked on the health bridge or on the tooth filled
integrated. The position of the mark should be on the incisal edge of the anterior
tooth or on the spire of the molars. For those bridge that's broken obviously, this
symbol should be on the tooth surface supported by the dentin instead of on the
suspended enamel.
4.1.7 The acute inflammation surrounding the apex has been gone and the infected
material has been cleaned. It is also necessary to get rid of the pulp and necrosis
tissue.
4.1.8 The following cases are not suited for a normal measurement:
a) The size of the root canal is big
Teeth with periapical pathosis root resorption, or root hypoplasia. In this case, the
Содержание DTE Dpex I
Страница 1: ......
Страница 5: ...2 Picture 1 ...
Страница 27: ...24 ...
Страница 28: ...25 ...
Страница 29: ...26 ...
Страница 33: ...ZMN WI 04 714 1 4 Edition ...