Dr. Matthew Burton, DDS, is a seasoned dentist with intensive expertise in chairside observe. Pissed off with the constraints of present Class II matrix programs, he collaborated with Garrison to develop the Quad Matrix System, a novel method to simplifying and bettering the effectivity of advanced restorations. This modern system, born from his years of sensible expertise, addresses the challenges of conventional matrix placement, resulting in extra predictable outcomes and decreased chairside time.
Dr. Burton is a passionate educator, sharing his experience by means of persevering with schooling programs worldwide. He embraces technological developments in dentistry, together with digital scanning, 3D printing, and intraoral scanning, and emphasizes their sensible integration for enhanced affected person care.
Affected person is a 20-year-old male with failing composite restorations. He studies the restorations have been performed about two years in the past, and he retains getting meals caught when he eats. Scientific and radiographic examination reveals failing present Class II direct restorations. Open contacts have been current, together with chipped marginal ridge types. This was inflicting meals impaction, secondary caries, and gingival irritation/irritation. Moreover, there are a number of overhanging margins current, which irritate the gingival tissues and lure meals, leading to Class II restoration failure. For the reason that higher left was essentially the most delicate space for the affected person, we elected to start with #14–MO, #13–MO & #12–DO.
Affected person was anesthetized and failing composite restorations have been eliminated with a 856-016 diamond bur. The margins have been completed with a Meisinger Wonderful Flame. All contacts have been damaged. As is widespread with failing Class II composite restoration removing, the gingival tissue was very infected and irritated. You will need to get this below management for improved imaginative and prescient and entry to the restorative discipline.
A hemostatic paste, Traxodent, was positioned on the irritated gingival tissues for 3 minutes after which rinsed off.
Subject is now clear and the gingival tissues are below management for restoration placement. Discover the concave form to the mesial gingival margin of #14. These slight concavities are troublesome to seal and can lead to flash or contamination of the restorative discipline. Moreover, if you happen to take a look at this picture, together with the pre-op bitewing, you’ll discover the uneven margins on #12–DO and #13–MO. When performing back-to-back restorations, uneven margins are widespread and will be troublesome to securely wedge/seal each margins with a single wedge.
Vitrebond was positioned on the dentin of #12, 13, and 14. The tooth have been etched with 35% acid for 30 seconds and rinsed. The matrix bands and wedges have been positioned. Since #14 was an remoted (non-back-to-back), a 3D Fusion™ Matrix band was utilized. With the concave gingival margin form, an anatomical Quad Wedge was positioned (purple). This wedge accommodates a convex function, permitting concave formed gingival margins to be precisely sealed. Picture reveals a high quality seal on the gingival margin #14.
On the #12 and 13 back-to-back Class IIs, 3.5mm Garrison Agency Matrix Bands have been positioned. The Agency Matrix Bands guarantee correct matrix band contour for back-to-back conditions. A medium Quad Wedge (orange) was positioned. Discover how the splitting wing function of the Quad Wedge permits simultaneous seal of each margins (#12 and #13) with a single wedge.
Following matrix and wedge placement, Quad Rings have been positioned. The primary ring positioned was the Quad common ring (blue) in between #12 and 13. The common ring was positioned first, permitting the tall Quad ring (yellow) to take a seat over the shorter common ring. The Quad ring has an asymmetrical tip design. The “driver tip,” which is designated by the black arrow on high of the ring pad (see picture) is designed to interact in-between the splitting wings of the Quad wedge. This interplay is exclusive, and permits wonderful gingival seal, flash management, and make contact with formation. Moreover, the splitting Quad wedge and the Quad ring synergy create an setting for back-to-back Class II restorations to be positioned concurrently. As soon as the rings are in place, a dycal instrument was used to frivolously burnish the matrix bands to make sure a easy floor previous to restoration placement.
Probably the most distal restoration, #14, was accomplished first. Scotchbond (3M), Surefil SDR (Dentsply) and Filtek Supreme (3M) have been utilized within the restoration. Please be aware that ScotchBond was positioned on all tooth: #12, 13, and 14 at this stage.
Following polymerization of #14, the Quad ring on #14 was eliminated. This sequencing in quadrant direct dentistry helps make sure that you obtain satisfactory ring power separation when inserting a number of rings. Following removing of the tall Quad ring (yellow), simultaneous restoration placement within the back-to-back scenario #12–13 begins.
Surefil SDR (Dentsply) is positioned within the field, adopted instantly by heated Filtek Supreme (3M). This snowplow method ensures sealed gingival margins and inhibits air bubbles of the restoration materials on the margins. The Class II is become a Class I. Layering on this manner helps lower polymerization stress on the tooth being restored.
Ultimate layer of the Filtek Supreme (3M) is positioned within the occlusal portion of #12 and 13. Please be aware that the identical methodology (Class II to Class I with snowplow) was utilized for #14. All restorations are positioned. Following polymerization, the Common Quad ring (blue), matrix bands, and Quad wedges are eliminated. Minor occlusal and marginal sprucing is accomplished.
Ultimate restorations and remaining bitewing photos (taken to make sure a clear margin #14 mesial). Complete therapy time was 43 minutes. It was in the perfect curiosity of the scenario to permit time for the hemostatic agent to work, permitting wonderful marginal seal and clear operator visibility throughout matrix and wedge placement. This step is time effectively spent!