{"product_id":"dentsply-waveone-gold-rotary-file-3-pk-primary-usa-code-wgprime21","title":"Dentsply - WaveOne Gold Rotary File 3\/Pk Primary - (USA code WGPRIME21)","description":"\u003cul id=\"ItemBullet\"\u003e\n\u003cli\u003ePrimary; 025 tip; 07 variable taper; for most root canals\u003c\/li\u003e\n\u003cli\u003eGOLD wire technology; greater flexibility; fatigue resistance\u003c\/li\u003e\n\u003cli\u003eReduced screwing effect vs rotary; shorter shaping time\u003c\/li\u003e\n\u003cli\u003eSingle-use pre-sterilized; 21mm; red handle color-coded\u003c\/li\u003e\n\u003cli\u003eReciprocating single-file; wider canal anatomy coverage\u003c\/li\u003e\n\u003cli\u003eQuantity: 3 per Pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp id=\"LongDesc\" class=\"richp\"\u003eDentsply WaveOne Gold Reciprocating Endodontic File, Primary, 21mm is used for single-file reciprocating canal shaping during root canal treatment where the Primary file's 025 tip diameter and 07 variable taper configuration makes it the recommended file for shaping the majority of root canals encountered in general dentistry and endodontic practice ? approximately 80% of cases can be shaped to completion using the Primary file alone as the single working file in the WaveOne Gold single-file reciprocating technique, without requiring progression through additional larger file sizes for cases with canal anatomies within the primary working range. The WaveOne Gold system's reciprocating movement uses unequal clockwise and counterclockwise angles to advance the file through the canal and disengage it from the canal wall alternately, producing a shaping motion that is fundamentally safer than continuous rotary motion by reducing the torsional load on the file during canal preparation and providing over four times the safety factor compared to equivalent multiple-file rotary preparation techniques.\n\nThe GOLD wire metallurgical technology of the WaveOne Gold file series provides the key physical property improvements that distinguish the WaveOne Gold from its WaveOne predecessor.\u003cbr\u003e\u003cbr\u003eThe GOLD heat treatment process of the NiTi alloy produces a file with significantly greater flexibility compared to conventionally processed NiTi files of equivalent diameter and taper, allowing the Primary file to follow severely curved canal trajectories with greater conformity to the canal's natural curvature and less straightening force applied to the canal wall during the shaping procedure. The GOLD wire technology also provides higher cyclic fatigue resistance ? the critical safety property for reciprocating and rotary files ? meaning the file can withstand more repeated flexion-tension cycles before metal fatigue failure occurs, reducing the risk of file separation during canal shaping particularly in curved canals where the highest cyclic fatigue stress accumulates.\n\nThe variable taper design from D1-D3 fixed and D4-D16 progressively decreasing provides the Primary file's characteristic cross-section profile that preserves more dentin in the coronal and middle thirds of the root compared to fixed-taper designs, supporting minimally invasive endodontic preparation that leaves more radicular dentin intact to preserve root strength. The reduced screwing effect of the WaveOne Gold reciprocating motion compared to standard continuous rotary systems minimizes the tendency of the file to inadvertently advance deeper into the canal than intended during the shaping sequence, providing better clinician control of file advancement during the preparation procedure.\n\nEndodontists and general dentists who perform root canal treatment using the WaveOne Gold single-file reciprocating technique find the Primary 21mm file the standard working file for the majority of their endodontic cases, covering the primary size range that accommodates most clinical canal anatomies encountered in their patient population.\u003cbr\u003e\u003cbr\u003eThe single-use pre-sterilized blister pack format ensures each file is used at maximum cutting efficiency for a single patient's canal preparation without the dulling and potential cross-contamination associated with reuse, with the red handle color coding confirming the Primary size identification at the endodontic tray setup.\n\nDentsply WaveOne Gold Reciprocating Endodontic File, Primary gives dental practices the recommended single-file for the majority of root canal cases in the WaveOne Gold system, with 025 tip and 07 variable taper, GOLD wire technology for greater flexibility and cyclic fatigue resistance, reduced screwing effect versus rotary systems, shorter shaping time, single-use pre-sterilized blister pack, red handle color-coded, 21mm working length, 3 per pack.\u003c\/p\u003e","brand":"Dentsply","offers":[{"title":"21 mm \/ Primary \/ Red","offer_id":47373805682866,"sku":"DE-A0753221G0P03","price":66.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/7747\/2690\/files\/125061_main.webp?v=1777662751","url":"https:\/\/beyond.frontierdental.com\/products\/dentsply-waveone-gold-rotary-file-3-pk-primary-usa-code-wgprime21","provider":"Beyond","version":"1.0","type":"link"}