Captek

Emerging in the United States in recent years, Captek has introduced a new gold-porcelain repair technology in recent years, namely Captek repair technology. The technical features are: the fabrication of the metal base does not need to go through the steps of waxing, embedding, casting, etc., but is directly completed in the porcelain furnace. The production process in the technical room is relatively simple, and it has the advantages of traditional precious metal porcelain restorations. , such as: good biocompatibility, corrosion resistance, etc. Therefore, some scholars believe that the Captek restoration technique is a major advance in the gold-ceramic restoration technique.

Captek (Capillary Casting Technology) is produced by The Precious Chemicals Company Inc. It is a new technology of precious metal porcelain restoration that has emerged in recent years.

    For centuries, gold has been known as the best performing material in the fabrication of restorations. Captek technology combines all the advantages of high-purity gold without sacrificing the strength of low-purity gold dental materials, and is a new restoration technology. It is composed of P and G components, the first layer P is platinum-palladium alloy, and the second layer G is gold alloy. The first layer P is sintered to form a microscopic three-dimensional capillary network structure, and the second layer G is melted to fill the capillary gap of the P layer, and the two are fused to form a high-strength composite substrate.

Periodontal patients please ask your doctor for CAPTEK porcelain restorations

    CAPTEK is the result of more than 30 years of research by dentist Dr. Itzhak Shoher and technician Mr Whiteman. It has formed a dominant position in the world so far, and every technical test result exceeds the expected height value. This major scientific breakthrough enables dentists to bring aesthetic, natural, safe and long-lasting dental restorations to their patients while preserving the health of the gums. It is because of this miraculous effect that CAPTEK has dominated the dental world and is without a doubt the best choice doctors offer to their patients.

    As a doctor or patient, when you first see CAPTEK, you will understand why the dental community has been admiring this product. The unique biocompatibility of CAPTEK material, the highly close edge and the gold-ceramic bonding force, coupled with the special hand-kneaded gold and platinum bonding process, you can definitely feel the extraordinary effect of CAPTEK, which is also the reason is its greatest advantage.

    The black lines that appear at the gums in traditional metal porcelain are very troublesome. The precious metal base structure of CAPTEK maintains the original pure color of gold, making the gums so natural and healthy, and you will find that the effect is so different.

    The special composition of CAPTEK materials has been proven to have the same health effects on gums as natural teeth. Test results show that the use of CAPTEK porcelain can reduce pigmentation and plaque formation by 71%, and this is the only proven to reduce Material of harmful bacteria around the gums. *Some researchers and clinicians pointed out that CAPTEK porcelain can even play a role in the treatment of gingival diseases, especially after the periodontal disease is stabilized, CAPTEK porcelain can effectively control the generation of bacteria in the gingival sulcus.

    For patients with poor periodontal condition, even if periodontal treatment has been stabilized, do you still choose traditional restorations for patients? Have you ever thought that a perfect restoration is not only about appearance and function, but only health can last.

CAPTEK is made by hand, and the inner crown is composed of two materials, P layer (platinum palladium alloy layer) and G layer (gold layer). The difference with gold deposition is the content of gold, the combination and strength of gold-ceramic. Although the gold content of gold deposition is relatively high, the practical application of CAPTEK is more realistic, and some foreign high-tech processing lengths do not do gold deposition. The preparation requirements are full shoulder preparation, and the shoulder must be 90 degree or shallow concave.

    The production steps of Captek crown and bridge:

⑴. Prepare the model

A. Prepare the positive mold according to the conventional requirements, and the model is required to be smooth and free of undercuts;

B. Place the male mold in a narrow-necked bottle of appropriate size, and inject high-quality silicone (Capsil) at the same time, and place it for 35 minutes;

C. Take the model out of the hardened silicone, put the precise high-temperature refractory material into the new silicone mold female mold, and place it for 35 minutes to solidify;

D. Heat-treating the prepared refractory male mold, mark the crown edge with a red pencil on the treated refractory male mold, and let it stand for 15 minutes in the air.

⑵ basal crown preparation

A. Cut the Captke P material according to the ratio of 60% and 40%. Place the large piece on the lips of the refractory male mold. Slightly above the incisal margin upwards and slightly below the crown margin downwards;

B. Press the Captek P material with your thumb and appropriate gentle pressure to make it exactly conform to the shape of the model. Continue to place small pieces of Captek P material on the lingual side of the model. As with the previous operation, press the Captek P material with the index finger to make it fully fit the model, especially in the concave tongue, etc.; (the company has a special extension tool)

C. Use a knife and sort out the excess material of the two overlapping parts to ensure that there is no gap, and at the same time fill the cut-out excess material in the possible gap. Clean the crown edges of the model to make sure there is no excess material. Use a knife to trim the part of the material at the edge of the crown to a 90° angle. If the material at the edge is too thin or damaged, add more material in these areas, and the thickness of Captek P on the die should be the same. The excess material below the gingival margin should be retained until the crown is heat treated, and the crown after the above treatment can be heat treated.

(3) Coating Captek G material on the crown surface, Captek G contains 97.5% gold and 2.5% silver, after that, the crown is placed in a porcelain furnace to heat again. At this point, the gold begins to melt, while the Captek P structure remains relatively stable, and Captek P acts like a metal sponge to siphon and absorb liquid gold.

⑷ After the treatment is completed, polish the crown edge.

⑸ Coating Capbond gold mud.

⑹Conventional porcelain.

    CAPTEK bridges require cast welding. In the production of the bridge body, something similar to a snap ring should be made on both sides of the bridge body, and it should be set on the CAPTEK crown, and then finished by precision arc welding. I have received a 4X6X8 bridge in Shenyang, and I think this is almost the longest CAPTEA bridge in China. It’s a pity that the camera was out of power at that time, and such a classic case was not recorded.

    Requirements for the preparation of CAPTEK pontic abutments: the shoulder must be concave with a width of 1.0mm, the axial preparation should be close to 1.5mm, and the incisal or maxillofacial surface should be 1.5~2.0mm. Basically equal to all-ceramic preparation, if the preparation is insufficient, the strength will decrease.

    In foreign countries, the clinical price of this technology is about twice that of precious metals, and foreign manufacturers have also produced it.

    Personally, I am not optimistic about gold deposition and CAPTEK. In terms of strength and aesthetics, they have no advantages over all-ceramic and precious metal porcelain, and the processing fee is also ridiculously high. My opinion is that In-Ceram all-ceramic should be made if the occlusal conditions permit. Otherwise do precious metals.