Omnichroma Circulation Blocker When and Why I Use Them

As I’ve been utilizing OMNICHROMA Circulation extra routinely in each day dentistry, my confidence in its capabilities has elevated. I’m frequently striving to do the least invasive dentistry I presumably can and having direct composite materials that are versatile throughout the broad spectrum of procedures is exceedingly useful. In this weblog article, I’ll share why and the way I take advantage of OMNICHROMA, OMNICHROMA Flow, and BLOCKER Flow in posterior restorative instances.

Case 1

In this first case, there have been small to reasonably sized cavities on the occlusal surfaces of enamel 18 and 19 (Fig. 1 & 2). After eradicating the decay the darkish reactionary dentin on the pulpal flooring was fairly seen on 19 and only a small space on 18 (Fig. 3). Every time I see any discolored dentin, whether or not it’s from decay or earlier restorations staining the dentin, I take advantage of the BLOCKER Circulation as a base layer to dam out the darkness from exhibiting by way of within the remaining restoration (Fig. 4). The thickness of this layer relies upon the darkness of the realm. The darker it’s the thicker the BLOCKER layer will be. Nevertheless, the effectiveness of the BLOCKER Circulation is such that it doesn’t require a thickness that may attain the cavus face margin. Generally, I’ve to do that in a number of layers to maintain the curing depth of the fabric lower than 2 mm. However, normally, the ultimate thickness of the Blocker layer will vary between 0.5-3.0 mm. As soon as the BLOCKER Circulation is accomplished, then I can use OMNICHROMA and/or OMNICHROMA Circulation to complete layering the restoration (Fig. 5 & 6). In this case, I made a decision to make use of OMNICHROMA Circulation and did so in a number of layers as effectively by putting a bit of at a time on every cusp space as much as the cave surface margin. If the preparation was smaller, then I might’ve accomplished it in single or two layers solely. After remaining mild curing, I used an effective grit diamond bur to create occlusal anatomy after which polished it (Fig. 7 & 8).

Case 2

Within the second case, additionally on enamel 18 and 19, after the decay was eliminated, the dentin didn’t seem to have any darkness that required a layer of BLOCKER Circulation. So, in this case, I solely used OMNICHROMA Circulation in the identical method described above, layering it into every cavity preparation in two or three layers to handle shrinkage stresses (Fig. 9, 10, 11, 12, 13, & 14). I felt snug restoring fully with OMNICHROMA Circulation in these smaller restorations that weren’t deep or broad.

Case 3

The ultimate case exhibits an instance of restoring bigger cavities on enamel 18 and 19. Each of those enamel had current massive composites which had been failing (Fig. 15). After the outdated restorations had been eliminated, the pulpal flooring was fairly darkish from reactionary dentin (Fig. 16). After air abrasion and positioning of the sectional matrix system, selective acid etching was accomplished adopted by Microprime desensitizer and Tokuyama Common Bond (Fig. 17, 18, & 19). The distal proximal wall was first established utilizing OMNICHROMA (Fig. 20) after which the ring and sectional matrix had been eliminated for simpler entry for subsequent layering (Fig. 21). BLOCKER Circulation was then used to cowl the darkish pulpal flooring which was accomplished in two layers per tooth to keep away from every layer being too thick or broad for a single mild remedy (Fig. 22). On this case the OMNICHROMA BLOCKER Circulation layer was most likely about 1.0-1.5mm thick. OMNICHROMA was then used to fill the rest of the cavities in three or 4 layers per tooth (Fig. 23). I might have used OMNICHROMA Circulation however opted for OMNICHROMA this time due to the scale of the restorations and desired the upper energy of normal OMNICHROMA. Occlusal anatomy was then created with an effective diamond bur and composite polishers (Fig. 24 & 25).

In the abstract, I take advantage of BLOCKER Circulation as a pulpal flooring liner after I want to dam out any darkish areas of the preparation, reminiscent of darkish reactionary dentin, or when changing outdated amalgam fillings which have stained pulpal dentin. In smaller cavity preparations I’ll restore totally with OMNICHROMA Circulation. In bigger cavities, I’ll use OMNICHROMA.

Slide Legend:

1 – Preop occlusal view of enamel #18 and #19 with outdated failing composite fillings.

2 – Preliminary removal of outdated composite restorations revealing recurrent decay.

3 – Accomplished cavity preparations exhibiting darkish pulpal flooring the place reactionary dentin responded to the recurrent decay.

4 – Tooth #19 exhibits the BLOCKER Circulation utilized and lightweight cured together with a small layer of uncured OMNICHROMA Circulation throughout the lingual groove space crammed as much as the cave surface margin. The BLOCKER Circulation is seen on the pulpal flooring. Tooth #18 had already been crammed to completion with BLOCKER Circulation and OMNICHROMA Circulation.

5 – Tooth #19 crammed to completion with OMNICHROMA Circulation earlier than mild remedy.

6 – Tooth #19 crammed to completion with OMNICHROMA Circulation after mild remedy.

7 – Accomplished restoration after shaping and sharpening.

8 – Accomplished restoration after shaping and sharpening and after eradicating the rubber dam.

9 – Preop occlusal view of enamel #18 and #19 with decay in grooves.

10 – Tooth preparations after decay eliminated adopted by air abrasion.

11 – OMNICHROMA Circulation earlier than remedy.

12 – OMNICHROMA Circulation after remedy.

13 – Last restorations after remaining shaping and sharpening.

14 – Speedy submit op after eradicating rubber dam.

15 – Preop occlusal view of Tooth #18 and #19 with outdated failing composite restorations.

16 – Cavity preparations after removing outdated restorations and recurrent decay. The pulpal flooring was darkish from reactionary dentin.

17 – Sectional matrix was in place and selective acid etch approach was used.

18 – Microprime desensitizing agent scrubbed into pulpal flooring.

19 – Tokuyama Common Bonding Resin.

20 – OMNICHROMA positioned and lightweight cured on the distal proximal field of tooth #19.

21 – With the distal proximal wall now established, the part matrix system was eliminated to permit simpler entry to fill the rest of the cavity preparations.

22 – BLOCKER Circulation was added in two layers at 1mm or much less thickness till the darkish pulpal flooring was not exhibited by way of. In this case, teeth #18 and #19 had been about 1.5mm thick.

23 – OMNICHROMA was then sculpted and cured in incremental layers.

24 – The last layer of OMNICHROMA is in place and cured.

25 – Last submit op occlusal view with rubber dam

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