Disc Prosthesis

When the surgical site is well healed and dimensionally stable, making an ocular prosthesis can begin. Before we begin, a thorough examination of the enucleated socket must be made to ensure proper healing and the absence of infection. The location of the implant, the movement of the bed of tissue, and the size and scope of the catch must be recorded.

Impressions

An impression of the socket can be with irreversible hydrocolloid. A tray can be manufactured using hard wax base warming on the fire and adapt to the contour of the area around the eye. A wax handle is attached using manipulation. The side of the fabric is marked with a hot spatula to allow for the retention of impression material. The patient sits upright, asked to look at a remote location, and instructed to hold his gaze in a direct position with eyes open while the impression is made. This procedure will ensure that the posterior surface of the enucleated socket and rectus muscles are in the same position relative to those of the eye remains.

The irreversible hydrocolloid is mixed using a half-measure extra hot water, offering a smooth, runny mix that will be fixed soon. The impression material is placed in a large syringe. The enlargement of the opening of the tip of the syringe will facilitate the expression of the impression material. The patient's eyelids open, irreversible hydrocolloid mixture is injected into the outlet, taking care to completely fill the socket trapping tiny pockets of air. The lids are then released, and some print material is expressed in the lids. The plateau, which has been coated with printing equipment, is placed on the eye and helped establish. When activated, the material in the making and over the lids can be removed in one piece. The patient is asked to open his eyes as wide as possible, and the impression is carefully removed. One must be careful not to tear the impression from the tray that represents the thin cover is opened. Before pouring the cast, this section of the print can be enhanced by placing a straight pin through the posterior surface. The print is inspected and the socket is checked for any residual irreversible hydrocolloid.

The impression is poured in two sections. A box is formed around the container with duct tape 3 inches. The first half of the iron is cast with a mixture of dental plaster with water slurries to accelerate the setting time. This procedure will prevent excessive water loss from the impression. The mixture is vibrating the print box and around the widest part of the socket printing. The impression is then placed in a cellar while stone sets. At least two grooves are cut into the surface of the first casting using a large round bur vulcanite. The stone is then lubricated with a separating medium and the second half of the impression is cast and returned to the cellar.

After the stone has set, the mold can be separated by removing the wax tray and impression material. With the help of a knife lab opening the lid of the mold is expanded to allow the melted wax to be poured into this without the wax solidify before the mold is filled. Dip mold in warm water for a few minutes and blot the excess water will allow the wax to flow and fill the mold without adhering to the stone.

Once the wax cooled, the mold is opened and the wax is recovered. The ridge of wax that represents the opening of the lid is lined with AWA.