In the present study the irreversible hydrocolloid
impressions were used to fabricate casts and functional form of the lingual frenum was recorded as was recorded by Hanan A Rahman et al10, BK Parimala11, Krishna Raj18 and Bissasu12 in their respective studies.
The primary impression was then made with irreversible hydrocolloid
While making an impression, the external auditory canal was blocked with a cotton plug and the impression was made by irreversible hydrocolloid
and with the gauge in between, and backing is done by quick-setting plaster to provide support for the impression (Figure 2).
First, two irreversible hydrocolloid
impressions of the upper jaw and two irreversible hydrocolloid
impressions of the lower jaw (Aroma Fine Plus, GC, Tokyo, Japan) were made for each participant.
In order to fabricate a maxillary IIO, a pick-up impression was taken with the existing obturator with irreversible hydrocolloid
(Kerr, USA) prior to implant surgery.
Impressions of the hand and legs of the donors were made using irreversible hydrocolloid
impression material in the same manner explained above and modeling wax was melted and poured into the impression material.
Several materials have been used to obtain the moulage impression, including plaster, reversible hydrocolloid, irreversible hydrocolloid
, and elastomeric materials such as polyvinylsiloxane and polysulfide rubber.
Three irreversible hydrocolloid
extended-pour products, Hydrogum 5 (Zhermack, Badia Polesine, Italy), Hydro Print Premium (Vigodent Coltene, Rio de Janeiro, Brazil), and Color Change (Cavex, Haarlen, Netherlands), were compared with the conventional irreversible hydrocolloid
Hydrogum (Zhermack, Badia Polesine, Italy) (Table 1).
Alginate is an elastic irreversible hydrocolloid
widely used for recording the impressions of dentulous arches, impressions for making models for diagnostic purposes, and for duplication of casts.
In this article, we describe what we believe is the only reported case of a near-total obstruction of the upper digestive tract caused by an irreversible hydrocolloid
. We also discuss our preferred methods of evaluation and management of foreign bodies in the upper digestive tract.
Keywords: Alginate Impression material, Irreversible hydrocolloid
, Impression faults.