Omnichroma, Omnichroma Drift, Omnichroma Blocker Drift: When and Why I Use Them in Direct Posterior Composite Restorations


Learn Time:5 Minute, 22 2d

All content material equipped by way of Dr. Kevin M. Brown, DDS, AAACD

As I’ve been the usage of OMNICHROMA Drift extra automatically in day-to-day dentistry, my self assurance in its features has larger. I’m regularly striving to do the least invasive dentistry I perhaps can and having an immediate composite subject material this is flexible around the large spectrum of procedures is exceedingly useful. On this weblog article, I will be able to percentage why and the way I exploit OMNICHROMA, OMNICHROMA Drift, and BLOCKER Drift in posterior restorative instances.

Case 1

On this first case there have been small to average sized cavities at the occlusal surfaces of tooth 18 and 19 (Fig. 1 & 2). After doing away with the decay the darkish reactionary dentin at the pulpal flooring was once fairly visual on 19 and only a small space on 18 (Fig. 3). On every occasion I see any discolored dentin, whether or not it’s from decay or earlier restorations staining the dentin, I exploit the BLOCKER Drift as a base layer to dam out the darkness from appearing thru within the ultimate recovery (Fig. 4). The thickness of this accretion is determined by the darkness of the realm. The darker it’s the thicker the BLOCKER layer will wish to be. Then again, the effectiveness of the BLOCKER Drift is such that it doesn’t require a thickness that may succeed in the cavosurface margin. Now and again I’ve to do that in numerous layers to stay the curing intensity of the fabric not up to 2 mm. However typically, the general thickness of the Blocker layer will vary between 0.5-3.0 mm. As soon as the BLOCKER Drift is finished, then I will be able to use OMNICHROMA and/or OMNICHROMA Drift to complete layering the recovery (Fig. 5 & 6). On this case, I made up our minds to make use of OMNICHROMA Drift and did so in numerous layers as smartly by way of hanging a little bit at a time on each and every cusp space as much as the cavosurface margin. If the preparation was once smaller, then I might’ve executed it in a single or two layers handiest. After ultimate mild curing, I used a tremendous grit diamond bur to create occlusal anatomy after which polished it (Fig. 7 & 8).

Case 2

In the second one case, additionally on tooth 18 and 19, after the decay was once got rid of, the dentin didn’t seem to have any darkness that required a layer of BLOCKER Drift. So, on this case I handiest used OMNICHROMA Drift in the similar method described above, layering it into each and every hollow space preparation in two or 3 layers to control shrinkage stresses (Fig. 9, 10, 11, 12, 13, & 14). I felt relaxed restoring completely with OMNICHROMA Drift in those smaller restorations that weren’t deep or large.

Case 3

The overall case displays an instance of restoring greater cavities on tooth 18 and 19. Either one of those tooth had present massive composites which have been failing (Fig. 15). After the outdated restorations had been got rid of, the pulpal flooring was once fairly darkish from reactionary dentin (Fig. 16). After air abrasion and positioning of the sectional matrix gadget, selective acid etching was once finished adopted by way of Microprime desensitizer and Tokuyama Common Bond (Fig. 17, 18, & 19). The distal proximal wall was once first established the usage of OMNICHROMA (Fig. 20) and then the hoop and sectional matrix had been got rid of for more uncomplicated get right of entry to for next layering (Fig. 21). BLOCKER Drift was once then used to hide the darkish pulpal flooring which was once executed in two layers in step with enamel to steer clear of each and every layer being too thick or large for a unmarried mild treatment (Fig. 22). On this case the OMNICHROMA BLOCKER Drift layer was once most certainly about 1.0-1.5mm thick. OMNICHROMA was once then used to fill the rest of the cavities in 3 or 4 layers in step with enamel (Fig. 23). I can have used OMNICHROMA Drift however opted for OMNICHROMA this time as a result of the dimensions of the restorations and desired the upper power of normal OMNICHROMA. Occlusal anatomy was once then created with a tremendous diamond bur and composite polishers (Fig. 24 & 25).

In abstract, I exploit BLOCKER Drift as a pulpal flooring liner once I wish to block out any darkish spaces of the preparation, comparable to darkish reactionary dentin, or when changing outdated amalgam fillings that experience stained pulpal dentin. In smaller hollow space arrangements I will be able to repair absolutely with OMNICHROMA Drift. In greater cavities, I will be able to use OMNICHROMA.


Slide Legend:

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

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

3 – Finished hollow space arrangements appearing darkish pulpal flooring the place reactionary dentin replied to the recurrent decay.

4 – Enamel #19 displays the BLOCKER Drift carried out and light-weight cured in conjunction with a small layer of uncured OMNICHROMA Drift throughout the lingual groove space stuffed as much as the cavosurface margin. The BLOCKER Drift is visual at the pulpal flooring. Enamel #18 had already been stuffed to final touch with BLOCKER Drift and OMNICHROMA Drift.

5 – Enamel #19 stuffed to final touch with OMNICHROMA Drift earlier than mild treatment.

6 – Enamel #19 stuffed to final touch with OMNICHROMA Drift after mild treatment.

7 – Finished recovery after shaping and sprucing.

8 – Finished recovery after shaping and sprucing and after doing away with the rubber dam.

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

10 – Enamel arrangements after decay got rid of adopted by way of air abrasion.

11 – OMNICHROMA Drift earlier than treatment.

12 – OMNICHROMA Drift after treatment.

13 – Ultimate restorations after ultimate shaping and sprucing.

14 – Rapid put up op after doing away with rubber dam.

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

16 – Hollow space arrangements after removing of outdated restorations and recurrent decay. The pulpal flooring was once darkish from reactionary dentin.

17 – Sectional matrix in position and selective acid etch method was once used.

18 – Microprime desensitizing agent scrubbed into pulpal flooring.

19 – Tokuyama Common Bonding Resin.

20 – OMNICHROMA positioned and light-weight cured at the distal proximal field of enamel #19.

21 – With the distal proximal wall now established, the segment matrix gadget was once got rid of to permit more uncomplicated get right of entry to to fill the rest of the hollow space arrangements.

22 – BLOCKER Drift was once added in two layers at 1mm or much less thickness till the darkish pulpal flooring was once no longer appearing thru. On this case enamel #18 and #19 had been about 1.5mm thick.

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

24 – Ultimate layer of OMNICHROMA in position and cured.

25 – Ultimate put up op occlusal view with rubber dam got rid of.

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