WEBVTT 00:00:00.000 --> 00:00:33.359 {"text":"

The temporary is removed. If necessary, any leftover temporary cement is removed from the preparation with a polishing brush and cleaning paste free of oil and fluoride (e.g. Proxyt fluoride-free<\/strong>). Subsequently, the preparation is dried with moisture-free and oil-free air. <\/p>","id":1} 00:00:33.359 --> 00:00:44.600 {"text":"

The occlusion is checked very carefully to prevent the restoration from fracturing. If necessary, proximal contacts are adjusted and polished with ceramic polishers. <\/p>","id":2} 00:00:44.600 --> 00:01:08.879 {"text":"

For optimum esthetic results, the shade of the restoration is checked with Variolink N Try-In<\/strong> pastes. After try-in, the paste is thoroughly removed with water spray and the restoration is dried with oil-free and moisture-free air.<\/p>","id":3} 00:01:08.879 --> 00:01:24.679 {"text":"

The restoration is etched with 5% hydrofluoric acid (e.g. IPS Ceramic Etching Gel<\/strong>) for 60 seconds or as directed by the manufacturer of the restorative materials. <\/p>","id":4} 00:01:24.679 --> 00:01:40.199 {"text":"

The restoration is throughly rinsed with water spray and dried with oil-free air. <\/p>\n","id":5} 00:01:40.199 --> 00:02:04.039 {"text":"

Monobond N<\/strong> is applied to the pretreated surfaces with a brush or microbrush and left to react for 60 seconds. Subsequently, it is dried with a vigorous stream of air.<\/p>","id":6} 00:02:04.039 --> 00:02:08.719 {"text":"

Relative isolation of the treatment field - preferably with OptraDam<\/strong> or alternatively with absorbent pads and a saliva ejector - is indispensible. <\/p>","id":7} 00:02:08.719 --> 00:02:37.639 {"text":"

The preparation is cleaned with a polishing brush and moisture-free and fluoride-free cleaning paste (e.g. Proxyt fluoride-free<\/strong>). Then it is rinsed with water spray. Subsequently, it is dried with air free of oil and moisture. Overdrying must be avoided. <\/p>","id":8} 00:02:37.639 --> 00:02:51.639 {"text":"

First N-Etch<\/strong> (37% phosphoric acid gel) is applied to the prepared enamel and then to the dentin (if available). The phosphoric acid is left to react for 15–30 seconds on enamel and for 10–15 seconds on dentin.<\/p>\n","id":9} 00:02:51.639 --> 00:03:11.719 {"text":"

Then the gel is thoroughly rinsed off for at least 5 seconds with a vigorous stream of water. Excess moisture is removed until the dentin surface looks slightly moist and shiny (wet-bonding). <\/p>","id":10} 00:03:11.719 --> 00:03:38.599 {"text":"

Syntac Primer<\/strong> is lightly brushed in the preparation. Syntac Primer should remain on the dentin for at least 15 seconds. Excess Syntac Primer is dispersed with air and thoroughly dried. It must not be rinsed off! <\/p>","id":11} 00:03:38.599 --> 00:04:05.479 {"text":"

Syntac Adhesive<\/strong> is applied and allowed to react for 10 seconds. Then the preparation is dried completely with an air syringe. It must not be rinsed off! <\/p>","id":12} 00:04:05.479 --> 00:04:26.119 {"text":"

Heliobond <\/strong>is applied and blown to a thin film.<\/p>\n

Heliobond is polymerized together with the luting material. <\/p>","id":13} 00:04:26.119 --> 00:04:32.719 {"text":"

Variolink N Base<\/strong> is applied directly to the preparation with a brush or spatula and\/or with the help of an applicator tip. If desired, it can be applied to the inner surface of the restoration.<\/p>","id":14} 00:04:32.719 --> 00:04:38.759 {"text":"

The restoration is seated and held in place using light constant pressure. <\/p>","id":15} 00:04:38.759 --> 00:04:44.199 {"text":"

Gross excess is removed with a suitable instrument (e.g. spatula, brush). Care must be taken to remove all excess in hard-to-reach areas (proximal, gingival margins). <\/p>","id":16} 00:04:44.199 --> 00:04:53.680 {"text":"

Pressure should be maintained on the restoration while it is tacked into place by light-curing a small area for 3-4 seconds (e.g. Bluephase N<\/strong>, 650 mW\/cm2<\/sup>, LOW-mode). Any excess is removed with a suitable instrument. <\/p>\n","id":17} 00:04:53.680 --> 00:04:59.720 {"text":"

Like all composites, Variolink N<\/strong> is subject to oxygen inhibition. In order to avoid this problem, it is advisable to cover the restoration margins with glycerine gel\/air block (e.g. Liquid Strip) immediately after the removal of excess cement.<\/p>","id":18} 00:04:59.720 --> 00:05:22.080 {"text":"

When a polymerization unit with light intensity of at least 800 mW\/cm2<\/sup> is used, the ceramic must be cured for 10 seconds per mm thickness and segment (e.g. Bluephase N<\/strong>, HIGH mode, 1,200 mW\/cm2<\/sup>). <\/p>\n","id":19} 00:05:22.080 --> 00:05:33.320 {"text":"

Liquid Strip<\/strong> is rinsed off and the rubber dam is removed. <\/p>","id":20} 00:05:33.320 --> 00:05:43.760 {"text":"

Proximal areas are adjusted with finishing and polishing strips. The occlusion and functional movements are checked and adjusted if necessary. The restoration margins are polished with polishers (e.g. OptraPol<\/strong>) or discs. <\/p>\n","id":21} 00:05:43.760 --> 00:06:05.440 {"text":"

A thin film of Fluor Protector <\/strong>is applied with a Vivabrush or brush and distributed evenly. The varnish is dried with an air syringe. <\/p>","id":22}