{"product_id":"wh-ws-91-45-degree-surgical-contra-angle-handpiece","title":"W\u0026H WS-91 45° Surgical Contra-Angle Handpiece (1:2.7 Increasing Speed)","description":"\u003cp data-start=\"101\" data-end=\"479\"\u003eThe WS-91 is a \u003cstrong data-start=\"116\" data-end=\"162\"\u003e45° angled surgical contra-angle handpiece\u003c\/strong\u003e designed to improve access and visibility in challenging posterior regions, particularly the premolar and molar areas. Long established as a preferred geometry for wisdom tooth surgery, the 45° head angle allows more ergonomic positioning and controlled cutting compared to straight or standard contra-angle designs.\u003c\/p\u003e\n\u003cp data-start=\"481\" data-end=\"869\"\u003eIn contrast to traditional air-turbine 45° handpieces, the WS-91 is an \u003cstrong data-start=\"552\" data-end=\"583\"\u003eE-type, motor-driven system\u003c\/strong\u003e, offering several clinical advantages: no airflow into the surgical site, no need to manage rear exhaust to avoid air embolism risk, and consistent power delivery without feathering. Constant torque from the electric motor supports smooth, predictable cutting throughout the procedure.\u003c\/p\u003e\n\u003cp data-start=\"871\" data-end=\"1083\"\u003eManufactured by \u003cstrong data-start=\"887\" data-end=\"928\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eW\u0026amp;H\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e, the WS-91 combines a dismantlable design, triple spray cooling, and multiple LED illumination options to support safe, efficient oral surgical workflows.\u003c\/p\u003e\n\u003ch3 data-start=\"1090\" data-end=\"1116\"\u003eClinical indications\u003c\/h3\u003e\n\u003cul data-start=\"1117\" data-end=\"1246\"\u003e\n\u003cli data-start=\"1117\" data-end=\"1132\"\u003e\n\u003cp data-start=\"1119\" data-end=\"1132\"\u003eHemisection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1133\" data-end=\"1163\"\u003e\n\u003cp data-start=\"1135\" data-end=\"1163\"\u003eExtraction of wisdom teeth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1164\" data-end=\"1246\"\u003e\n\u003cp data-start=\"1166\" data-end=\"1246\"\u003eSurgical procedures requiring improved access in the premolar and molar region\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1253\" data-end=\"1271\"\u003eKey features\u003c\/h3\u003e\n\u003cul data-start=\"1272\" data-end=\"1865\"\u003e\n\u003cli data-start=\"1272\" data-end=\"1321\"\u003e\n\u003cp data-start=\"1274\" data-end=\"1321\"\u003e45° angled head for superior posterior access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1322\" data-end=\"1359\"\u003e\n\u003cp data-start=\"1324\" data-end=\"1359\"\u003e1:2.7 speed-increasing gear ratio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1360\" data-end=\"1388\"\u003e\n\u003cp data-start=\"1362\" data-end=\"1388\"\u003ePush-button chuck system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1453\"\u003e\n\u003cp data-start=\"1391\" data-end=\"1453\"\u003eAccepts surgical burs and cutters with \u003cstrong data-start=\"1430\" data-end=\"1451\"\u003eFG shank Ø 1.6 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1454\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1456\" data-end=\"1508\"\u003eTriple spray cooling for effective heat management\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1509\" data-end=\"1570\"\u003e\n\u003cp data-start=\"1511\" data-end=\"1570\"\u003eDismantlable design for thorough cleaning and maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1571\" data-end=\"1645\"\u003e\n\u003cp data-start=\"1573\" data-end=\"1645\"\u003eElectric motor-driven operation for constant torque and smooth cutting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1646\" data-end=\"1685\"\u003e\n\u003cp data-start=\"1648\" data-end=\"1685\"\u003eNo air exhaust at the surgical site\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1686\" data-end=\"1739\"\u003e\n\u003cp data-start=\"1688\" data-end=\"1739\"\u003eErgonomic balance supporting fatigue-free working\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1740\" data-end=\"1816\"\u003e\n\u003cp data-start=\"1742\" data-end=\"1816\"\u003eHigh-quality stainless steel construction with scratch-resistant coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1817\" data-end=\"1865\"\u003e\n\u003cp data-start=\"1819\" data-end=\"1865\"\u003eThermo washer-disinfectable and sterilizable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1872\" data-end=\"1891\"\u003eVariant options\u003c\/h3\u003e\n\u003cp data-start=\"1893\" data-end=\"1914\"\u003e\u003cstrong data-start=\"1893\" data-end=\"1912\"\u003eWS-91 (Non-LED)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1915\" data-end=\"2151\"\u003e\n\u003cli data-start=\"1915\" data-end=\"1938\"\u003e\n\u003cp data-start=\"1917\" data-end=\"1938\"\u003e1:2.7, dismantlable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1939\" data-end=\"1969\"\u003e\n\u003cp data-start=\"1941\" data-end=\"1969\"\u003eNo integrated illumination\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1970\" data-end=\"2017\"\u003e\n\u003cp data-start=\"1972\" data-end=\"2017\"\u003eFG shank Ø 1.6 mm surgical burs and cutters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2018\" data-end=\"2042\"\u003e\n\u003cp data-start=\"2020\" data-end=\"2042\"\u003eTriple spray cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2043\" data-end=\"2082\"\u003e\n\u003cp data-start=\"2045\" data-end=\"2082\"\u003eMaximum drive speed: \u003cstrong data-start=\"2066\" data-end=\"2080\"\u003e50,000 rpm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2083\" data-end=\"2128\"\u003e\n\u003cp data-start=\"2085\" data-end=\"2128\"\u003eCoupling system: \u003cstrong data-start=\"2102\" data-end=\"2126\"\u003eISO 3964 (DIN 13940)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2129\" data-end=\"2151\"\u003e\n\u003cp data-start=\"2131\" data-end=\"2151\"\u003eW\u0026amp;H REF \u003cstrong data-start=\"2139\" data-end=\"2151\"\u003e30047000\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2153\" data-end=\"2196\"\u003e\u003cstrong data-start=\"2153\" data-end=\"2194\"\u003eWS-91 LG (mini LED+, self-generating)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2197\" data-end=\"2520\"\u003e\n\u003cli data-start=\"2197\" data-end=\"2220\"\u003e\n\u003cp data-start=\"2199\" data-end=\"2220\"\u003e1:2.7, dismantlable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2221\" data-end=\"2279\"\u003e\n\u003cp data-start=\"2223\" data-end=\"2279\"\u003eIntegrated \u003cstrong data-start=\"2234\" data-end=\"2247\"\u003emini LED+\u003c\/strong\u003e with self-contained generator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2280\" data-end=\"2338\"\u003e\n\u003cp data-start=\"2282\" data-end=\"2338\"\u003eDaylight-quality illumination independent of the motor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2339\" data-end=\"2386\"\u003e\n\u003cp data-start=\"2341\" data-end=\"2386\"\u003eFG shank Ø 1.6 mm surgical burs and cutters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2387\" data-end=\"2411\"\u003e\n\u003cp data-start=\"2389\" data-end=\"2411\"\u003eTriple spray cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2412\" data-end=\"2451\"\u003e\n\u003cp data-start=\"2414\" data-end=\"2451\"\u003eMaximum drive speed: \u003cstrong data-start=\"2435\" data-end=\"2449\"\u003e40,000 rpm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2452\" data-end=\"2497\"\u003e\n\u003cp data-start=\"2454\" data-end=\"2497\"\u003eCoupling system: \u003cstrong data-start=\"2471\" data-end=\"2495\"\u003eISO 3964 (DIN 13940)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2498\" data-end=\"2520\"\u003e\n\u003cp data-start=\"2500\" data-end=\"2520\"\u003eW\u0026amp;H REF \u003cstrong data-start=\"2508\" data-end=\"2520\"\u003e30048000\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2522\" data-end=\"2555\"\u003e\u003cstrong data-start=\"2522\" data-end=\"2553\"\u003eWS-91 L (motor-powered LED)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2556\" data-end=\"2928\"\u003e\n\u003cli data-start=\"2556\" data-end=\"2579\"\u003e\n\u003cp data-start=\"2558\" data-end=\"2579\"\u003e1:2.7, dismantlable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2580\" data-end=\"2626\"\u003e\n\u003cp data-start=\"2582\" data-end=\"2626\"\u003e\u003cstrong data-start=\"2582\" data-end=\"2624\"\u003emini LED+ powered via motor connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2627\" data-end=\"2694\"\u003e\n\u003cp data-start=\"2629\" data-end=\"2694\"\u003eDeveloped for use with \u003cstrong data-start=\"2652\" data-end=\"2692\"\u003eW\u0026amp;H EM-19 LC \/ EM-19 electric motors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2695\" data-end=\"2746\"\u003e\n\u003cp data-start=\"2697\" data-end=\"2746\"\u003eOptimized for Implantmed Plus SI-1015 workflows\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2747\" data-end=\"2794\"\u003e\n\u003cp data-start=\"2749\" data-end=\"2794\"\u003eFG shank Ø 1.6 mm surgical burs and cutters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2795\" data-end=\"2819\"\u003e\n\u003cp data-start=\"2797\" data-end=\"2819\"\u003eTriple spray cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2820\" data-end=\"2859\"\u003e\n\u003cp data-start=\"2822\" data-end=\"2859\"\u003eMaximum drive speed: \u003cstrong data-start=\"2843\" data-end=\"2857\"\u003e50,000 rpm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2860\" data-end=\"2905\"\u003e\n\u003cp data-start=\"2862\" data-end=\"2905\"\u003eCoupling system: \u003cstrong data-start=\"2879\" data-end=\"2903\"\u003eW\u0026amp;H EM-19 LC \/ EM-19\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2906\" data-end=\"2928\"\u003e\n\u003cp data-start=\"2908\" data-end=\"2928\"\u003eW\u0026amp;H REF \u003cstrong data-start=\"2916\" data-end=\"2928\"\u003e30049000\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2935\" data-end=\"2971\"\u003emini LED+ illumination options\u003c\/h3\u003e\n\u003cul data-start=\"2972\" data-end=\"3285\"\u003e\n\u003cli data-start=\"2972\" data-end=\"3118\"\u003e\n\u003cp data-start=\"2974\" data-end=\"3118\"\u003e\u003cstrong data-start=\"2974\" data-end=\"2988\"\u003eLG variant\u003c\/strong\u003e: self-generating mini LED+ with an integrated generator, delivering daylight-quality illumination without relying on the motor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3119\" data-end=\"3285\"\u003e\n\u003cp data-start=\"3121\" data-end=\"3285\"\u003e\u003cstrong data-start=\"3121\" data-end=\"3134\"\u003eL variant\u003c\/strong\u003e: mini LED+ powered directly through the EM-19 LC motor connection, providing optimal illumination when paired with the Implantmed Plus SI-1015 system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3287\" data-end=\"3398\"\u003eBoth LED options enhance visualization in deep posterior surgical sites where access and lighting are critical.\u003c\/p\u003e\n\u003ch3 data-start=\"3405\" data-end=\"3428\"\u003eTechnical summary\u003c\/h3\u003e\n\u003cul data-start=\"3429\" data-end=\"3736\"\u003e\n\u003cli data-start=\"3429\" data-end=\"3450\"\u003e\n\u003cp data-start=\"3431\" data-end=\"3450\"\u003eGear ratio: 1:2.7\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3451\" data-end=\"3470\"\u003e\n\u003cp data-start=\"3453\" data-end=\"3470\"\u003eHead angle: 45°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3471\" data-end=\"3504\"\u003e\n\u003cp data-start=\"3473\" data-end=\"3504\"\u003eDesign: surgical contra-angle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3505\" data-end=\"3538\"\u003e\n\u003cp data-start=\"3507\" data-end=\"3538\"\u003eBur system: FG shank Ø 1.6 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3539\" data-end=\"3564\"\u003e\n\u003cp data-start=\"3541\" data-end=\"3564\"\u003eCooling: triple spray\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3565\" data-end=\"3586\"\u003e\n\u003cp data-start=\"3567\" data-end=\"3586\"\u003eDismantlable: yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3587\" data-end=\"3672\"\u003e\n\u003cp data-start=\"3589\" data-end=\"3672\"\u003eCoupling system: ISO 3964 (DIN 13940) or W\u0026amp;H EM-19 LC \/ EM-19 (variant-dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3673\" data-end=\"3736\"\u003e\n\u003cp data-start=\"3675\" data-end=\"3736\"\u003eSterilization: thermo washer-disinfectable and sterilizable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"W\u0026H","offers":[{"title":"No Light","offer_id":46628007477425,"sku":"WH-30047000","price":2059.99,"currency_code":"USD","in_stock":true},{"title":"LED LG Self-Generating","offer_id":46628007510193,"sku":"WH-30048000","price":2479.99,"currency_code":"USD","in_stock":true},{"title":"LED+ L for Implantmed Plus","offer_id":46628007542961,"sku":"WH-30049000","price":2059.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5915\/8961\/files\/30047000_WS-91.jpg?v=1776520295","url":"https:\/\/www.xemax.com\/products\/wh-ws-91-45-degree-surgical-contra-angle-handpiece","provider":"Xemax Surgical Products, Inc.","version":"1.0","type":"link"}