Kirish: Tishlarini to'g'rilamoqchi bo'lgan yoshlar yoki talabalar uchun tobora ko'proq odamlar estetika uchun ko'rinmas alignerlarni (shaffof qavslar) tanlaydilar. Stomatologiya klinikalari odatda o'nlab braketlar to'plamini ishlab chiqaradi va har 1-2 haftada bittasini kiyadi. Vitse, tishlarning burchagini asta-sekin moslashtiring va nihoyat ortodontik davolanishga erishing. Biroq, siz o'nlab braketlarni kiyishingiz kerakligi sababli, bu biroz mashaqqatli va isrofgarchilikdir. Xo'sh, yaxshiroq texnik yechim bormi?
On February 10, 2022, the Antarctic Bear was informed that researchers from Germany, Egypt and the United Arab Emirates have developed a new type of 3D printed transparent dental appliance, which is different from the appliances currently on the market. It is made of shape memory polymer. It has a "4D" shape memory function.
The orthodontic device they developed uses Kline Europe's clear ClearX resin, 3D printed using a DLP process, that softens once placed in the user's mouth, allowing it to accommodate, grasp and reposition misaligned teeth. So far, the aligners are not only biocompatible, but have demonstrated the ability to predictably change properties over time, potentially becoming an ideal replacement for current clear braces.
△Researchers believe that their dental braces can greatly reduce the cost associated with the production of braces, picture from Prodways
4D tish braketlarining afzalliklari
Current appliances are made from different types of polymers, such as polyethylene materials, polyvinyl chloride, polyethylene terephthalate, polypropylene, polyester and polyurethane. The appliance works by controlling tooth movement by programming the deviation of the tooth's position from the actual tooth position. In most popular appliance systems on the market, each appliance can only move the teeth by {{0}}.2 to 0.3 mm, or 1 degree to 3 degree of rotation each time, and each appliance is worn for approximately 14 days before being replaced with the next one. Secondary appliance. Therefore, the correction cycle of teeth is long and the cost is high.
Ushbu qurilma uchun tadqiqotchilar ikkita asosiy kamchilikka e'tibor berishadi: an'anaviy materiallarning kamchiliklari va tish harakatining biologik jihatlari. Tish harakatini biologik tezlashtirish uchun ko'plab usullar joriy qilingan. Boshqa tomondan, yangi jihoz materiallarini joriy etish ham e'tiborni tortdi.
Shakl xotira polimerlari (SMP) yaqinda stomatologiyaga, ayniqsa ortodontik ilovalar uchun kiritilgan yangi materiallardan biridir. Ular tibbiy materiallarni qo'llash uchun katta imkoniyatlar yaratadi.
Toʻrt oʻlchovli chop etish (4D chop etish){0}}texnologiyasi shakl xotirasi materiallariga asoslangan 3D bosib chiqarishdir. Shubhasiz, 4D bosilgan qismlar ma'lum atrof-muhit sharoitida vaqt o'tishi bilan (to'rtinchi o'lchov) shaklini o'zgartirish qobiliyatiga ega. Shakl xotirasi polimer materiallari rivojlanishda davom etar ekan, mahsulot dizayni sanoatida yangi 4D bosib chiqarish ilovalari o'sishi kutilmoqda. Tadqiqotchilar ortodontik asboblarni ishlab chiqarishga 4D texnologiyasini olib kelishmoqda.
1-rasm: Moslashtirilgan matbaa xatosi (T) 21-tish, tekislagichni tekislash uchun 4D bosilgan tekislagich (A) va kulrang shina (S)
Tadqiqot materiallari, usullari va natijalari
Birinchidan, tadqiqotchilar qatron va akril tishlardan foydalangan holda maxsus tish modelini yaratdilar. Yuqori chap markaziy kesma (21-tish) jami 3 mm dislokatsiya bilan chiqib ketgan va modeldagi pushti mum ichiga solib harakatlanuvchi, qolgan tishlar esa smola bilan mahkamlangan (1-rasm).
The team then used a standard Asiga Max 3D printer and ClearX resin, which it claims is an ideal material for "modification aligners," to create six pairs of 4D-printed aligners.
Ushbu jihozlar tishlari noto'g'ri bo'lgan va issiq suvda namlangan modellarga qo'llaniladi. Ushbu jarayon davomida noto'g'ri joylashtirilgan tish atrofidagi mum yumshab, uni jihoz tomonidan shakllantirilishiga va keyin ma'lumotlarni olish uchun sovutilishiga imkon beradi. (Muayyan jarayon ancha murakkab, agar qiziqsangiz, asl matnni o'qing.)
Natijalar shuni ko'rsatdiki, shakl xotirasi moslamasi tishlarning 21 sezilarli harakatiga muvaffaqiyatli erishgan va izchil harakat Ortodontik o'lchash va simulyatsiya tizimida (OMSS) ham o'lchangan. Ammo mobil moslamaning 3.00mm koʻrsatkichiga erishilmadi, atigi 2.06-2.82 mm.ga erishildi. Shunday bo'lsa-da, natijalar qoniqarli bo'lib, bitta shaklli xotira qurilmasi tishning deyarli 10 ta an'anaviy asbob kabi harakatlanishiga erishdi.
Hozirgi vaqtda 4D bosib chiqarish moslamasi hali ham tadqiqot bosqichida va uni imkon qadar tezroq tijoratlashtirish kutilmoqda.
△ Orthodontic Measurement and Simulation System (OMSS) used to evaluate the efficacy of the team's 4D appliance
Tijoriy stomatologik 3D bosib chiqarish portlamoqda
So'nggi bir necha oy ichida stomatologiya sanoatida 3D bosib chiqarishning tobora ommalashib borishi ko'plab ishlab chiqaruvchilarni yangi materiallar va mashinalarni joriy etishga undadi, ularning har biri yuqori{1}}hajmli aligner ishlab chiqarishni osonlashtirish uchun mo'ljallangan. Yuqori daromadli bozorda dunyo ochildi.
Earlier this month, Desktop Health, the medical business unit of 3D printer manufacturer Desktop Metal, released a new line of Einstein dental systems. The machines feature "HyperPrint" technology, which is said to be 50 percent faster than EnvisionTEC's Envision One system, launched with FDA-cleared Flexcera Smile Ultra plus resin.
O'tgan yilning oxirida ish stoli LCD 3D printer ishlab chiqaruvchisi UNIZ ham NBEE qatronli 3D printerlarini jo'natishni boshladi. Stomatologlarning yuqori hajmdagi ishlab chiqarish ehtiyojlarini qondirish uchun maxsus ishlab chiqilgan ushbu tizim aligner modellari, protez tagliklari, tungi qo'riqchilar, jarrohlik yo'riqnomalari, tojlar va ko'priklar qo'llanilishini 3D bosib chiqarish uchun tezlik, sifat va qulaylikni birlashtiradi.
Prodways kabi kompaniyalar stomatologiya mijozlari uchun -o‘ta katta hajmdagi mahsulotlarni 3D bosib chiqarishni boshladilar. 2021-yil dekabr oyida kompaniya mashinalari yiliga milliongacha bo‘lgan plaginlarni ishlab chiqarish uchun foydalaniladigan yirik mijozni yetkazib berish topshirilganini ma’lum qildi.
The researchers' findings are detailed in their paper, titled "Potential Application of 4D Technology in Fabrication of Orthodontic Aligners."
