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Results for “DENTAL IMPRESSION MATERIALS”

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At least 397 records · Page 22Linked to original sources
PubMed1983

Secondary softening of modeling compound for copper band impressions.

A technique for secondary softening compound when making copper band/compound impressions was presented. The advantages of the technique include (1) increased working time; (2) greater precision, especially at the cervical part of the preparation; and (3) better temperature control.

Chemical Phenomena↗
PubMed1984

Using irreversible hydrocolloid to evaluate preparations and fabricate temporary immediate provisional restorations.

Two unique techniques that use irreversible hydrocolloid and an Omnivac matrix have been presented. The first technique is used to evaluate the adequacy and uniformity of the tooth preparation. The second technique is used to create a TIPR for the patient while the PIPR is being fabricated. The TIPR-PIPR system can be used to facilitate proper diagnosis, planning, and treatment; and it results in improved patient comfort, dentist efficiency, and increased control over the final restoration.

Colloids↗
PubMed1985

Irreversible hydrocolloid impressions for full-banded orthodontic patients.

A technique has been described to obtain intact accurate irreversible hydrocolloid impressions in patients who are in the process of full-banded orthodontic therapy. When this technique is used, the maxillary and mandibular casts are produced with sufficient accuracy to make a maxillary occlusal splint that requires minimal adjustment.

Colloids↗
PubMed1985

The influence of impression trays on the accuracy of stone casts poured from irreversible hydrocolloid impressions.

An investigation was conducted to determine which of four commonly used impression trays yields the best results when making irreversible hydrocolloid impressions. This objective was achieved by evaluating the comparative accuracy of stone casts obtained from irreversible hydrocolloid impressions made with trays of different characteristics. The following conclusions are drawn from this study. Some kind of distortion can be expected in irreversible hydrocolloid impressions with the use of any of the tested impression trays. The perforated trays (B and D) reproduce more accurately the distances along the length and the width of the arch than the nonperforated trays (A and C). The depth of the palatal vault (distance f-g) is reproduced most accurately by the Rim-lock nonperforated tray (A) followed closely by the stock perforated (B) and the custom nonperforated (C) trays. Under the conditions of this study, all the impressions had a tendency to be oversized except the impressions made with the stock perforated tray (B). Those impressions were slightly undersized for all but two measured distances. Clinically significant inaccuracies produced by any of the four tested impression trays were not found in this study.

Calcium Sulfate↗