After the silicone rubber model is made in the mouth of the patient, it is believed that under normal circumstances, dentists will check the making of the impression to see whether the lower surface is intact? Are there any defects? What are the defects that need to be re moulded, and what are the defects that can be sent directly? Here, the editor will explain it in detail:
1、 The rate of such defects without tray is not high, and it is easy for clinicians to check. As long as there is silicone rubber in such cases, please do not send it out, and use the special tray provided by time angel to take the mold again.
2、 If the mold material is separated from the tray, if the demoulding position is not at the tooth and the area is small, it can be sent out after being fixed by glue. If it appears in the tooth or the demoulding area is large, it is necessary to take the silica gel again and send it out.
3、 Because of the characteristics of the initial impression material, it is difficult to ensure the clarity and accuracy of the tooth form after the removal of the impression. If the tooth form is not clear when the silicon offset impression is checked, especially when the gingival margin is fuzzy, it is also necessary to take the impression again.
4、 If the molars are not completely removed, the frequency of such defects is high. Clinicians can evaluate whether such defects need to be removed again by combining with the treatment plan. If the molar relationship is maintained and 1 / 2 of the last crown has been taken, it is not necessary to take it again. If the molar needs to be designed to move but not taken completely, please take the mold again. At the same time, when such defects occur, please also indicate whether the molar relationship is maintained in the entrusted processing sheet or the mid-term feedback form, so as to avoid giving the defect description feedback to the clinic due to the unclear scheme during the silica gel acceptance.
5、 In general, there are two kinds of color materials in the initial and final impression. In the clinical examination of silica gel, if the color separation of some parts is obvious, the probe can be used to check whether the edge transition is smooth. If the two materials are not well combined or steps are found, please take the mould again.
6、 Sometimes the shortage of tooth form is caused by the insufficient depth of impression bite or the insufficient amount of impression. When the clinician checks, he can evaluate whether to take it again according to the gingival marginal line. The defect less than 1 / 3 of a single tooth can be repaired in the later stage, but it can not be taken again.
Seven, bubble, cavity, impression bite through the phenomenon of these three are also more common defects, according to the defect of the tooth position to determine whether to retake. Generally, as long as it doesn't occur at the cutting angle and tooth tip, the smaller area can be trimmed later, and it doesn't need to be retaken.
Bubble
cavity
Bite through
8、 If there is obvious deformation on the impression surface of the dentition part, please take it again clinically. If there is any inconformity with the normal dental anatomy, please refer to the actual shape of the patient's mouth for confirmation. If the patient has deformed teeth, at the same time, please make sure that the teeth position is clearly photographed in the preparation of the teeth position in the entrusted processing sheet or in the oral photo provided by the company during the acceptance of silica gel Refer to relevant data to determine whether it is a defect.
9、 In case of uneven color mixing on the surface of the impression with incomplete curing, please check its hardness with a clinical probe. In case of incomplete curing, please take the silica gel again.
10、 If the removable denture is not removed, please remove the removable denture before removing the model. This item also needs to be removed again
Finally, if the defective half mouth silica gel does not need to be corrected, it can also be sent out without affecting the occlusion. Please indicate only the maxillary / mandibular correction in the entrusted processing sheet or the mid-term feedback form. When the silica gel is accepted, the defect can be evaluated with reference to the data. At the same time, please also ask the clinician to wash the teeth of the patient, and then take the silica gel model, so that the later appliance can better fit the tooth surface.
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