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Impressions

Accu-Dent Accu Dent Impression System

·Irreversible hydrocolloid (hydrophilic) ·Two viscosities ·Non-slumping Non slumping ·Premeasured sealed packaging ·Syringe delivery ·Temperature controlled ·Unique tray design ·Single entry impression system

Accu-Dent I A D t Impression S t i System 1

For edentulous patients

Accu-Dent Accu Dent System 1 Impression System

Accu-Dent System 1 A D tS t Impression System

· System one Accu-gel materials are specially formulated to make impressions of edentulous arches dentate arches · The trays are specifically designed f this f for purpose · It features a syringe system that facilitates the delivery of impression material into the buccal and labial flange areas

Impressions for the maxillary edentulous arch ill d t l h

Syringe Gel S i G l

Use the "System 1" side of y the measuring vial to proportion the exact amount of water for the syringe gel

The syringe gel mixes quickly and smoothly

Syringe Gel

Remove the plunger and back load the syringe

Engage the plunger and press material into the syringe tip

Tray Gel

Again use the "System 1" System 1 side of the vial to measure the appropriate amount of water for the tra gel ater tray

Tray Gel y

Note that the tray g y gel appears dry at the start of mixing. Do not add water. water In several seconds it will develop into a creamy mix.

Loading the Tray

Rub the surface of the loaded tray material with water

Note th tray material i N t the t t i l is loaded heaviest in the anterior section of the tray

Loading th T L di the Tray

Apply a small amount of pp y material on the initial loading of the tray. This allows the material to be pressed into the retentive holes of the tray

After all the retentive holes have been engaged add the remaining material to the tray

Making the Impression

Begin injecting the material directly into the hamular notch area on one side of the arch

Continue injecting (keeping the tip of the syringe imbedded into the material) up to the labial frenum and stop

Making the Impression

Inject into the hamular notch of the opposite side and continue forward t the labial f d to th l bi l frenum

Making the Impression

Inject some material to anterior hard palate area

Note how the material "attaches (hydrophilic)" to the tissue and does not "drip (non-slumping)" drip (non-slumping)

Taking the Impression

Gently seat the tray in the patient's mouth (do not overseat"

As soon as material extrudes from the back of the tray "stop" seating

Border Molding

Gently hold the lower border of the upper lip and pull forward

Have patient slowly open wide

Border Molding

Gently massage the right and left cheeks of g the patient

Tray Removal

Carefully remove the impression by breaking the seal at th perpheral b d l t the h l borders (Do not remove impression by tugging on the handle of y gg g the tray) Thoroughly rinse impression of saliva

Tray Removal

Disinfect impression Di i f t i i using materials and techniques appropriate q pp p for irreversible hydrocolloid materials Support the impression using the Accu-dent tray holder (do not lay impression on counter) t )

Final Impression

Note the accuracy of the peripheral border registrations

Final Impression

In particular note the detailed registration of the hamular notch area

Border molded final maxillary impression

Impressions for the mandibular edentulous arch dib l d t l h

The mandibular Accu dent impression is not a Accu-dent border molded like the maxillary impression

The intent of the mandibular impression is to obtain a "fully extended impression" to facilitate the identification o t e anatomical a d a s that of the a ato ca landmarks t at will gu de the out e o guide t e outline of the denture border extensions

Tray Selection (distal rise)

Moderately resorbed ridges gradually incline to the ramus

This gradual incline (low distal rise) is reflected in the mandibular trays #25-29

Tray Selection (distal rise)

Severely resorbed ridges have a more abrupt incline to the ramus

This high distal rise is reflected in the mandibular trays #20-24

Tray Selection ( i ) T S l ti (size)

The "tray selection tool" facilitates th f ilit t the proper size i selection for the mandibular impression tray p y Measure approximately where the first molars are located on patients existing denture or on their ridge and select a tray that lines up to the center of the retentive holes of the tray

Making the Impression

The syringe gel material is first injected fi t fi t i j t d first over th the retromolar pad area and than pulled forward up to p p the midline area

Making th I M ki the Impression i

The opposite retromolar pad is covered and the material is pulled forward to meet the contra lateral contra-lateral side

Insert the loaded tray asking the patient to place their tongue between the lingual flanges of the tray

Fully t d d F ll extended mandibular dib l impression p

Fully extended mandibular impression options

If the anatomy is accurately identified and marked this impression can serve as th final impression the fi l i i

Fully extended mandibular impression options

....or this impression can p serve as preliminary impression for the fabrication of a custom impression tray

Fully extended mandibular impression options

....or this impression can serve to fabricate a interim denture that will be functionally relined several y weeks after delivery

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