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Description
Eighteeth®UltraX 超音波根管洗浄器 超音波エンドアクティベーターUltra X 45 kHz 1500 mAh LED2 1500 mAh 4. 5 Ultra X Ultra X23mm 302mm 45
Ultra X超音波エンドアクティベーター
特徴 超音波活性化デバイス 45 kHzの高周波 アプリケーションに基づいた複数の先端 1500 mAhの強力なバッテリー LEDインジケーター付きの2つの電力モード コントラアングルデザイン 軽量でエルゴノミック コードレス灌漑デバイス 1500 mAhのリチウムバッテリー バッテリーレベルインジケーター 4.5時間の連続作業 直接プラグ＆プレイのオプション
動作中 キャビテーション効果
これは、灌漑溶液中で数百万の気泡が形成されるプロセスです。これらの気泡は大きくなり、異なる方向に振動し、液体中で爆発して強力な清掃作業を生み出します。 音響流
これは、超音波波によって生成される液体の単方向の流れです。先端の動きによって音響乱流と呼ばれる特別な効果が生じ、根管内の液体の移動が加速されます。
指示 スメア層の除去
スメア層の効果的な除去と歯髄管の詰まり解消に効果的 デンチンチップの除去
超音波の振動により、残留したデンチンチップと組織の残骸が灌流剤と共に懸濁液を形成し、容易に除去されるようになります 生物膜の破壊
超音波のキャビテーションが生物膜を破壊し、根管内の細菌負荷を減少させるのに役立ちます 複雑な解剖学のクリーニング
超音波活性化は、灌流剤が未検出または未加工の根管解剖学（イストマス、フィン、側根管、根尖分岐など）に流入するのを助けます。また、蒸気ロックを除去するのにも役立ちます。
プロトコル 形状付けと仕上げ器具を使用して、必要なサイズまで根管を準備します。 選択した消毒剤と洗浄剤を選択して、根管の清掃、脱脂、消毒を行います。 Ultra Xを灌漑溶液なしで動作させないでください。 選択した長さとサイズのUltra Xチップを選択し、根管に収まるようにし、常に先端を根尖の2〜3mm短くしてください。 30秒間、短い上下のストロークで溶液を活性化します。根尖の2mmを超えないように注意してください。 デバイスを優しく使用し、圧力を加えたり、チップを根管内に固定したりしないでください。抵抗のポイントがある場合は、超音波チップを取り出してください。 灌流液を補充し、緩やかなデブリを除去するために吸引を使用してください。 サイクルを4〜5回繰り返します。 根管を完全に乾燥させ、選択した充填材で充填します。 常にゴムダムを使用して歯を隔離し、ヘッドギア
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 4
Nice looking
Size: 11, Color: Cognac Grainy
I normally wear an 11.5 (including other Marc Jacob’s- including this make from 2024). The shoes are a pretty soft leather. I had to return for a size 11 which feels slightly tight but now, through experience, I know will stretch. I wear these shoes almost every day in black or brown They look great. Note, these shoes (because all leather) wear out relatively quickly, especially the front. I keep a fake leather Pair (almost identical looking) which are not nearly as comfortable (I don’t take walks in them) but look better for dinners etc.
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Reviewed in the United States on October 22, 2025
★★★★★ 5
The "Lazy Professional" Look: Is Hands-Free Luxury Actually Real?
Size: 9.5, Color: Black Napa Leather
Living down here in Florida, my footwear needs are pretty specific. It’s hot, it’s humid, and I spent half my life rushing from the car into work or a meeting. I’ve reached that age where I value efficiency just as much as style—maybe more. I’ve been eyeing the Marc Joseph New York Hands-Free Slip-on Penny Loafers for a while, and after putting them through the wringer, here is the honest truth from someone who just wants to look sharp without the hassle.
The "Just Step-In" Reality
Look, the big selling point here is the "Hands-Free" tech. We’ve all seen the commercials for those athletic slip-ins, but finding that in a legitimate leather penny loafer is a different game. Does it work? Yes, surprisingly well. The heel counter is firm enough that it doesn’t collapse when you slide your foot in, but it doesn’t feel like a piece of plastic digging into your Achilles once you’re in. For those of us who are tired of bending over or hunting for a shoehorn every morning, this is a genuine quality-of-life upgrade.
The Florida Factor: Comfort and Style
The leather is actual calfskin (on most models), which is a must for the Florida heat. Synthetic shoes turn into a sauna within ten minutes, but these breathe reasonably well. The aesthetic is classic—it’s a "professor" shoe through and through. You can wear them with chinos and a blazer for work or throw them on with some nice jeans for a weekend lunch.
Inside, they’ve got a gel heel insert and a padded footbed. It’s not quite "walking on a cloud"—let’s not over-hype it—but it’s a massive step up from the hard, flat soles of traditional dress loafers. I’ve spent four hours on my feet lecturing, and my arches didn’t hate me by the end of the day.
The Sizing Gamble
Here’s where you need to be careful. The consensus from other guys (and my own experience) is that the sizing is a bit of a coin toss. They tend to run a little large and sometimes wide. If you have narrow feet, you might find the sides "gaping" or flaring out when you walk, which kills the sleek look. I’d recommend ordering a half-size down if you’re usually between sizes.
The Breakdown
The Pros:
True Hands-Free: You can actually put these on while holding a coffee and a briefcase. No hands needed.
Legit Materials: The calf leather feels premium and smells like the real deal.
Versatility: Perfectly bridges the gap between a "car shoe" and a formal loafer.
Comfort: The gel insert makes a noticeable difference for long-duration wear.
The Cons:
Sizing Inconsistency: They can run wide, leading to some "heel slip" if you don't get the perfect fit.
Break-in Period: The heel is stiff by design (to allow for the slip-on feature), so expect a day or two of minor stiffness.
Price Point: They aren't cheap, though often on sale.
Value for Money
Are they worth it? If you’re comparing them to high-end Italian brands that cost $500, these are an absolute steal. They look 90% as good for a fraction of the price. However, if you're used to $60 mall shoes, the jump to $150+ might feel steep until you realize you’re paying for the convenience of never having to touch your shoes to put them on. For a daily driver in a professional setting, the value is definitely there.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Step In Look Good
Size: 11.5, Color: Cognac Napa Leather
I am wearing these shoes as I write this review, and they look and feel great. I have a bit of a disability with drop foot on the right leg and bilateral neuropathy and have been wearing step in shoes for about 10 years. But the first company that introduced leather dress and casual shoes stopped making them and now only makes sport and casual shoes. So I have been searching for some that meet my need for shoes like this and this company has given me three pairs, so far. Easy to get into, comfortable to wear, and good looking. And they take polish very well, too. (Remember how to do that?). We may buy another pair or two in different styles as well.
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Reviewed in the United States on April 26, 2026
★★★★★ 4
Runs tight. Skinny and smaller than other brands.
Size: 8.5, Color: Brown
Comfy and lots of support. Cushiony. Beware: the brown I ordered runs small. Tighter than other brands.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Nice
Size: 9, Color: Black
Very comfortable. Worth the money
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Reviewed in the United States on June 1, 2026
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