{"title":"US No. 7686 Bur – Busch Finishing Taper Round Carbide, Made in Germany","description":"\u003cp\u003eThe \u003cstrong\u003eUS No. 7686\u003c\/strong\u003e is the American number for a round-end taper finishing bur with a 1.8 mm head (ISO size 018): a long tapered head with a rounded tip and many fine blades, for refining crown preparations and finishing composite margins. Busch \u0026amp; Co. manufactures it in Germany as \u003cstrong\u003eBusch No. 375R 018\u003c\/strong\u003e. Every US No. 7686 on this page is a genuine Busch instrument and ships from our US warehouse.\u003c\/p\u003e\u003ch2\u003eWhich US No. 7686 Do You Need?\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eUS No.\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eBusch No.\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eMaterial\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eCut\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eShank\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003eBest for\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;background:#f6f6f6;\"\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003ca href=\"\/products\/carbide-cone-round-finishing-bur-375r-018-fg-pack-of-2\"\u003e7686\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e375R 018\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCarbide\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFinishing\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFG\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCrown prep refinement, composite margins\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp style=\"font-size:13px;\"\u003eFG (friction grip, 1.6 mm shank, high-speed). See the \u003ca href=\"\/pages\/busch-bur-size-chart\"\u003eBusch Bur Size Chart\u003c\/a\u003e for head and shank dimensions.\u003c\/p\u003e\u003ch2\u003eClinical Uses of the US No. 7686\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown preparation:\u003c\/strong\u003e smoothing axial walls and chamfer margins on molars after diamond reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposite margins:\u003c\/strong\u003e finishing broad facial and proximal margins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnlay and inlay preparation:\u003c\/strong\u003e refining internal walls and cavosurface margins.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAt 1.8 mm the No. 7686 is the wider of Busch's two round-end taper finishers; the \u003ca href=\"\/collections\/us-7675-bur\"\u003eNo. 7675\u003c\/a\u003e is the 1.6 mm size.\u003c\/p\u003e\u003ch2\u003eSpeed and Technique\u003c\/h2\u003e\u003cp\u003eFinishing burs work at reduced pressure: use them with water spray in the high-speed handpiece and let the blade count produce the surface; heavy pressure only dulls them. Maximum recommended speeds for every Busch shape are in our \u003ca href=\"\/pages\/dental-bur-speed-chart\"\u003eDental Bur Speed Chart\u003c\/a\u003e, and reprocessing steps in the \u003ca href=\"\/pages\/dental-bur-sterilization-guide\"\u003eBur Sterilization Guide\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMade in Germany by Busch \u0026amp; Co.\u003c\/h2\u003e\u003cp\u003eBusch \u0026amp; Co. has manufactured rotary instruments in Engelskirchen, Germany since 1905. Every instrument on this page is a genuine Busch product, precision-ground on a concentric shank under ISO-certified quality management and guaranteed to arrive free of manufacturing defects under our \u003ca href=\"\/pages\/warranty\"\u003eBusch arrival guarantee\u003c\/a\u003e.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Busch number for a US 7686 bur?\u003c\/strong\u003e Busch No. 375R 018 in carbide, FG shank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is a No. 7686 bur?\u003c\/strong\u003e The No. 7686 has a 1.8 mm head diameter (ISO size 018) on a round-end taper finishing head, ISO shape 198, 8 mm long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e7675 or 7686?\u003c\/strong\u003e Same shape; choose by diameter. The 7675 (1.6 mm) for anterior and premolar margins, the 7686 (1.8 mm) for molar axial walls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Busch No. 7686 burs reusable?\u003c\/strong\u003e Yes. Carbide burs are cleaned, disinfected and sterilized between patients and replaced when they dull; the \u003ca href=\"\/pages\/dental-bur-sterilization-guide\"\u003eBur Sterilization Guide\u003c\/a\u003e gives the validated steps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated resources:\u003c\/strong\u003e \u003ca href=\"\/pages\/us-bur-numbers\"\u003eUS Bur Number Finder\u003c\/a\u003e · \u003ca href=\"\/pages\/bur-comparison-chart\"\u003eBur Comparison Chart\u003c\/a\u003e · \u003ca href=\"\/pages\/dental-bur-speed-chart\"\u003eSpeed Chart\u003c\/a\u003e · \u003ca href=\"\/pages\/dental-bur-glossary\"\u003eBur Glossary\u003c\/a\u003e · Nearby size: \u003ca href=\"\/collections\/us-7675-bur\"\u003eUS No. 7675\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"carbide-cone-round-finishing-bur-375r-018-fg-pack-of-2","title":"US No. 7686 Busch Carbide Finishing Taper (Cone) Round Bur | Busch No. 375R 018 – FG | Pack of 2","description":"\u003cp\u003eThe \u003cstrong\u003ecarbide taper (cone) round finishing bur\u003c\/strong\u003e from Busch \u0026amp; Co. GmbH (US No. 7686) is a precision-engineered rotary instrument designed for demanding restorative and prosthodontic procedures. Built to exacting standards in Germany, this bur delivers the consistent cutting performance and surface quality that clinicians depend on in daily practice.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eUS No.:\u003c\/strong\u003e 7686\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Carbide, Taper (Cone) Round, Finishing Bur\u003cbr\u003e\u003cstrong\u003eISO Classification:\u003c\/strong\u003e 500 314 198 072 018\u003cbr\u003e\u003cstrong\u003ePack:\u003c\/strong\u003e 2 burs per pack\u003cbr\u003e\u003cstrong\u003eShank:\u003c\/strong\u003e FG (Friction Grip)\u003c\/p\u003e\u003ch2\u003eKey Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown Preparation:\u003c\/strong\u003e The geometry of this \u003cstrong\u003ecarbide taper (cone) round finishing bur\u003c\/strong\u003e makes it well suited for shaping and refining crown preparations, enabling precise marginal definition and axial wall contouring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilling Treatment:\u003c\/strong\u003e Ideal for finishing and contouring restorative materials, ensuring smooth transitions and optimal surface texture following placement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose This Bur?\u003c\/h2\u003e\u003cp\u003eAs a \u003cstrong\u003ecarbide taper (cone) round finishing bur\u003c\/strong\u003e, this instrument offers superior hardness and edge retention compared to standard steel burs. The taper (cone) round form factor provides excellent access and control in both anterior and posterior regions, making it a versatile addition to any restorative tray setup. Manufactured in Germany, each bur reflects Busch \u0026amp; Co. GmbH's long-standing commitment to quality and precision in dental instrumentation.\u003c\/p\u003e\u003cp\u003eWhether used for crown preparation or filling treatment, the \u003cstrong\u003ecarbide taper (cone) round finishing bur\u003c\/strong\u003e provides the reliability and cutting consistency required for high-quality clinical outcomes. Sold in a convenient pack of 2.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/MadeInGermanySmall.png?v=1775134964\" alt=\"Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany\"\u003e\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the US number for this bur?\u003c\/strong\u003e Busch 375R 018 is US No. 7686, the 1.8 mm round-end taper finishing carbide. See our \u003ca href=\"\/collections\/us-7686-bur\"\u003eUS No. 7686\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shank type does this bur use?\u003c\/strong\u003e This bur features an FG (Friction Grip) shank, compatible with standard high-speed handpieces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many burs are included?\u003c\/strong\u003e Each pack contains 2 burs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the ISO classification?\u003c\/strong\u003e The ISO classification is 500 314 198 072 018.\u003c\/p\u003e","brand":"Busch \u0026 Co. GmbH","offers":[{"title":"Default Title","offer_id":50367868240158,"sku":"021582","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/files\/375r-base_6adf8f88-5ad2-4fe2-80cd-3ab8dfa5a4eb.png?v=1766501416"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1318\/5566\/collections\/375r-base_6adf8f88-5ad2-4fe2-80cd-3ab8dfa5a4eb.png?v=1790153340","url":"https:\/\/deutschedt.com\/collections\/us-7686-bur.oembed","provider":"Deutsche Dental Technologien","version":"1.0","type":"link"}