X

مقالات ارتودنسی

تاریخ انتشار: چهارشنبه 29 مهر 1394
لمینیت سرامیکی چیست؟

  لمینیت سرامیکی چیست؟

امتیاز: Article Rating

عملکردد آنها چگونه است ؟

شاید فکر کنید که چگونه یک لایه نازک سرامیک (پرسلن) که ماهیتا شکننده است می تواند سایش ها و ضربات را بدون اینکه بشکند تحمل کند. جواب در این حقیقت است که هر چند پرسلن شکننده است ,   وقتی به خوبی به دندان چسبانده شود و دندان هم آن را ساپورت و حمایت کند می تواند سطحی بسیار محکم و مقاوم ایجاد نماید.
آیا لمینیت ها با روکش های دندانی تفاوت دارند؟
هر چند هر دو در نتیجه نهایی و ایجاد شکل زیبا یکی هستند. اما معمولا وقتی تمامی سطح و دور دندان را تراش می دهیم تا پرسلن آن را کاملا در بربگیرد به آن روکش دندانی تا   crown می گویند احتیاج به برداشتن سطوح بیشتری از ساختمان دندان دارد.اما لمینیت فقط سطح جلو و رویی دندان را می پوشاند و به تراش کمتری نیاز دارد.

لمینیت ها چه مزایاییی دارند؟

آنها می توانند ظاهری بسیار طبیعی ایجاد نمایند و این امر به علت توانایی آنها در انعکاس نور ، تقریبا مشابه دندان طبیعی است ، مینای دندان نور را از خود عبور می دهد و وقتی نور به آن می خورد شکسته می شود و به لایه عاج زیرین آن خورده و انعکاس می یابد. این نفوذ و برگشت است که رنگ شیشه ای و شفافیت را به مینا می دهد. لمینیت نیز همین خاصیت را دارد. یعنی نور را از خود عبور می دهد و نور به سطح دندان خورده را انعکاس مییابد. بنابراین علاوه به اینکه شفاف است به مانند مینا رنگ لایه زیرین خود را (ابتدا با شکست) نشان می دهد. بدین خاطر است که اگر بخواهیم دندان بدرنگی را به رنگ بهتری جلوهدهیم در زیر لمینیت از چسب یاسمان با رنگ دلخواه استفاده می کنیم.

آنها در مقابل لکه های رنگی مقاوم هستند. از دیگر مزیت لمینت های پرسلن این است که لکه های رنگی به آنها نفوذ پیدا نمی کند و رنگ آنها به مرور زمان تغییر پیدا نخواهد کرد.

کاربرد ها و موارد تجویز لمینت (laminate )

همانطور که گفته شد از آنها برای ترمیم شکل و ظاهر دندانهایی که شکستگی یا سایش دارند و یا بد رنگ و بد شکل هستند استفاده می گردد. به طور مثال در ترمیم بدشکلی ها و نواقص کوچک دندانی. دندانهایی که سایش دارند یاشکستگی های جزیی دارند.
پوشاندن پرکردگی های قدیمی که رنگشان عوش شده است. پوشاندن لکه های مادرزادی یا محیطی دندان که به مینا نفوذ پیدا کرده اند. تغییر رنگ دندانهای جلو و ایجاد ظاهری بهتر و متفاوت از لمینیت همچنین می توان برای مختصر ردیف کردن و یا بستن فضاهای بین دندانی نیز خیلی بزرگ باشند استفاده از کامپوزیت یا همان ترمیم های همرنگ دندان تجویز می گردند.
 

در چه مواردی از لمینیت نباید استفاده کنیم؟

 در موارد و یا افرادی نباید از لمینیت چرسلن برای ترمیم استفاده شود. به عنوان مثال:
دندانهایی که از لحاظ ساختمانی احتیاج به افزایشی استحکام دارند.اگر مقدار زیادی از ساختمان دندان، به علت پوسیدگی یا شکستگی، از بین رفته باشد و یا دندانهایی که دارای پر کردگی های بزرگ می باشند. کاندید مناسبی برای لمینیت نیستند. در این موارد بهتر است دندانها روکشی کامل گردند.
دندانهایی که مینای آنها از بین رفته است. نظر به اینکه برای چسباندن موفق لمینیت ها احتیاج به مینای دندانی می باشد، بنابراین دندانهایی که مینای آنها از بین رفته کاندید مناسبی برای لمینیت نیستند و بهتر است روکش گردند.
در جایی که نیروی زیاد وارد می شود. کسانی که دندان قروچه دارند و یا دندانهای جلوی خود را بهم می سائیدو یا رابطه دندانهایشان طوری است که دندانهای جلو بصورت « نوک به نوک» یا «لبه به لبه» قرار می گیرند به علت اینکه اینگونه فشارها می توانند موجب کنده شدن و یا شکستن لمینیت گردند. نیز بهتر است به جای لمینیت از ترمیم های دیگر، بخصوص روکش استفاده کنند.

 

اشتراک گذاری
تصاویر
  • لمینیت سرامیکی چیست؟
ثبت امتیاز
نظرات
چهارشنبه, 13 بهمن,1400
Thanks for your whole labor on this blog. Gloria delights in setting aside time for internet research and it's simple to grasp why. Most of us know all relating to the lively tactic you make great tips and tricks through this web site and therefore cause contribution from people about this idea then my princess is undoubtedly learning a whole lot. Enjoy the remaining portion of the new year. You are always carrying out a good job.
جمعه, 15 بهمن,1400
I wanted to type a quick word to be able to appreciate you for all of the pleasant ways you are placing on this site. My rather long internet look up has at the end of the day been paid with excellent facts and strategies to share with my good friends. I would assume that many of us visitors are quite blessed to be in a very good network with so many lovely individuals with very helpful tactics. I feel quite blessed to have used your entire weblog and look forward to tons of more thrilling times reading here. Thank you once again for all the details.
یکشنبه, 17 بهمن,1400
I truly wanted to write a brief remark to say thanks to you for these nice facts you are sharing on this website. My time intensive internet look up has at the end of the day been honored with incredibly good points to write about with my classmates and friends. I 'd state that that most of us website visitors are definitely endowed to live in a perfect site with so many brilliant individuals with useful concepts. I feel very fortunate to have used your entire web site and look forward to really more amazing times reading here. Thanks a lot once more for a lot of things.
ﺳﻪشنبه, 19 بهمن,1400
I and my pals appeared to be examining the excellent strategies located on the website while all of a sudden came up with a horrible feeling I never thanked the website owner for those secrets. Most of the boys became consequently thrilled to see all of them and have in effect in fact been making the most of these things. We appreciate you being considerably thoughtful and also for considering this kind of tremendous topics millions of individuals are really desperate to know about. Our own honest regret for not expressing appreciation to you sooner.
جمعه, 22 بهمن,1400
I would like to point out my gratitude for your generosity in support of all those that must have guidance on this important situation. Your special dedication to getting the solution all over had been definitely productive and has made guys and women much like me to reach their aims. Your own helpful hints and tips means a whole lot a person like me and substantially more to my office colleagues. With thanks; from each one of us.
یکشنبه, 24 بهمن,1400
I simply had to thank you very much yet again. I'm not certain what I would've used in the absence of the pointers revealed by you over my subject. It actually was a very horrifying circumstance in my circumstances, but noticing your specialized avenue you managed it took me to weep over delight. Now i'm happy for your guidance and in addition sincerely hope you know what a great job your are putting in training people today using a blog. Most likely you haven't got to know all of us.
ﺳﻪشنبه, 26 بهمن,1400
I am only commenting to let you be aware of of the brilliant experience my princess found browsing the blog. She learned a good number of details, most notably what it's like to possess a marvelous coaching spirit to get certain people just know precisely various multifaceted issues. You actually surpassed our own desires. Thanks for offering such productive, dependable, edifying and as well as unique tips on that topic to Lizeth.
پنجشنبه, 28 بهمن,1400
I intended to compose you that very small observation in order to give thanks as before over the pretty solutions you have contributed in this case. It has been quite generous with people like you to offer without restraint all that a number of people could possibly have offered for an ebook to help with making some money on their own, most importantly given that you could possibly have done it in case you wanted. The things likewise served to become a great way to realize that someone else have the identical dream just as my own to know the truth very much more when it comes to this problem. I believe there are several more fun moments in the future for those who read carefully your blog.
جمعه, 29 بهمن,1400
I definitely wanted to type a small comment to say thanks to you for those stunning tactics you are sharing on this site. My particularly long internet search has at the end been honored with high-quality know-how to write about with my partners. I would assert that many of us website visitors actually are undoubtedly fortunate to exist in a fabulous site with very many outstanding people with valuable tactics. I feel really privileged to have come across the website and look forward to tons of more cool times reading here. Thank you once again for a lot of things.
دوشنبه, 02 اسفند,1400
My wife and i got really thrilled that Peter managed to do his preliminary research while using the precious recommendations he discovered while using the weblog. It is now and again perplexing just to possibly be giving freely things which often others may have been trying to sell. Therefore we grasp we need the website owner to appreciate because of that. All of the illustrations you have made, the easy web site navigation, the relationships you can help create - it's many incredible, and it's really helping our son and us reason why the issue is excellent, which is certainly unbelievably vital. Thanks for everything!
پنجشنبه, 05 اسفند,1400
A lot of thanks for your own efforts on this web site. Ellie takes pleasure in getting into research and it's really obvious why. We all hear all relating to the compelling manner you provide powerful things via your blog and in addition encourage participation from others on that content while our favorite princess is without question understanding a whole lot. Take pleasure in the rest of the new year. You are performing a glorious job.
شنبه, 07 اسفند,1400
I am writing to make you be aware of what a amazing experience my friend's princess had browsing your web page. She mastered a lot of pieces, including what it is like to possess a very effective giving style to get other people with ease thoroughly grasp selected extremely tough topics. You actually did more than people's expected results. Thank you for delivering the important, trustworthy, explanatory as well as easy tips about this topic to Evelyn.
ﺳﻪشنبه, 10 اسفند,1400
I as well as my friends happened to be looking through the best points found on the blog and so suddenly got a horrible feeling I had not expressed respect to the site owner for those tips. All of the people became so happy to learn all of them and have in effect sincerely been having fun with them. I appreciate you for turning out to be indeed thoughtful and also for settling on these kinds of decent areas millions of individuals are really wanting to be informed on. My sincere apologies for not expressing gratitude to earlier.
پنجشنبه, 12 اسفند,1400
I simply wished to thank you so much once again. I am not sure what I would've created in the absence of the type of aspects revealed by you on my subject matter. It had become a real distressing issue in my opinion, however , looking at a specialised form you managed the issue took me to cry for delight. I'm just grateful for this advice and in addition wish you recognize what a great job that you are doing educating many others via your webblog. More than likely you haven't encountered all of us.
شنبه, 14 اسفند,1400
I have to voice my gratitude for your kind-heartedness for men and women that must have help on this important content. Your special commitment to passing the message all over became certainly insightful and have really helped employees much like me to realize their ambitions. The informative tutorial implies so much a person like me and extremely more to my peers. Regards; from each one of us.
یکشنبه, 15 اسفند,1400
I'm also writing to make you know what a really good experience my friend's child gained viewing the blog. She figured out a lot of pieces, which included what it's like to have an incredible coaching mood to get many others quite simply gain knowledge of selected impossible topics. You truly did more than readers' expectations. Thank you for displaying those great, dependable, revealing and even easy tips on that topic to Ethel.
ﺳﻪشنبه, 17 اسفند,1400
Thank you so much for giving everyone remarkably wonderful chance to read in detail from this blog. It can be very amazing and as well , full of a lot of fun for me personally and my office mates to search your site minimum three times in 7 days to study the newest items you have got. And lastly, we are always happy with all the tremendous guidelines you serve. Selected 1 ideas on this page are absolutely the simplest I have ever had.
پنجشنبه, 19 اسفند,1400
I intended to draft you a little observation to finally thank you so much the moment again with your stunning pointers you've contributed above. This has been simply remarkably generous with you to make freely exactly what many people would have offered for sale for an e-book in order to make some profit on their own, principally considering the fact that you might well have done it if you ever decided. Those thoughts in addition acted to be the good way to comprehend other people online have the identical keenness really like my very own to understand good deal more pertaining to this condition. I believe there are millions of more pleasurable situations up front for people who look into your site.
یکشنبه, 22 اسفند,1400
I and my buddies have been examining the great information on the blog then immediately I had an awful feeling I never thanked the web blog owner for them. Those ladies became for that reason joyful to study all of them and have in effect sincerely been enjoying these things. I appreciate you for genuinely considerably helpful and for pick out these kinds of marvelous subjects millions of individuals are really eager to understand about. My honest apologies for not expressing appreciation to earlier.
ﺳﻪشنبه, 24 اسفند,1400
I and my guys have been following the nice helpful hints from your website while immediately I got a horrible feeling I had not thanked you for those strategies. These ladies were definitely stimulated to see all of them and have seriously been loving these things. Appreciation for genuinely very helpful as well as for pick out this sort of important tips most people are really desperate to know about. My sincere apologies for not saying thanks to you earlier.
ارسال نظر جدید

نام

ایمیل

وب سایت

Choosing The Most Beneficial Handbag To Formulate Your Body Type Considering the many materials that are available for handbags, leather remains the most popular particular. A leather handbag can be put to several different uses and yet work out just perfect like them. If you want to for one handbag material that suits all kinds of personalities then 1 of three be the leather handbag. 14th Century: The 14th century could be the first time any kind of written word was found about purse. The Egyptians wore them as a standing symbol in a leather or animal skin pouch that was worn inside the waist. Each pouch was either embroidered or has jewels sewn on it's. They may appear like a great solution, but bags with straps the actual body produces you more harm than fine. The eagle eyed thief is more likely with an noticed the bag as compared to the strap, meaning so it doesn't allow the preventative you would hope. What's more, it means really should anyone got down to steal it they'll read more than they bargained whenever you're dragged along with it, may possibly lead for you being damaged. Clutch Handbag - This can be a handbag provides no strap or handles and is often a bit smaller and used for formal anniversaries. You can fit the essentials in there and look elegant while out on the town or on that special date. A photo handbag as an activity that unique - mostly - to acquire to use more often of time each working day. It is also a subtle statement - both fashion-wise and relationship-wise - which allows her to flaunt either her relationship with a good other (that is if ever the photo handbag is of her and her beloved partner) or even a picture of her young child. Last except for the least; let us take a look at what is the ideal size on a bridal handbag. Will you be while using handbag only as an accessory just for the sake of wedding reception pictures or will it rest beside your chair all along with the event? What exactly is the standby time with the bridal handbag? Is it just for show or you want to keep some handy late deal touch up stuff for emergencies? Generally, brides keep some makeup accessories like lipstick, eyeliner, lip gloss, hand mirror, tissues, pins etc of handbags. The greatest do come in useful a few point point or some other on this day. So depending upon your requirements, the measurements of your bridal handbag will vary from a small palm size purse along with medium stylish bag. Threads ought not to be hanging out or stitched all your place. Even though messy stitches are found only on the inside of a handbag, an actual Dolce and Gabbana handbag does donrrrt you have faulty stitches anywhere. The economy is so competitive and also need every edge you're able to get. Overlook to don't to information of acceptable you reflect. Follow these tips on selecting the perfect handbag to take on work to do interview and walk into the interview with full confidence! wide handbag, leather handbag Here you can buy Handbags Replica :
gucci replica 1:1 louis vuitton backpack replica Louis Vuitton outlet Espana fake Louis Vuitton shoes imitation sac louis vuitton louis vuitton wallet replica replica louis vuitton luggage hermes birkin replica hermes birkin replica replica designer scarves Louis Vuitton pas cher louis vuitton bumbag replica louis vuitton wallet replica replica louis vuitton luggage Louis vuitton false online replica louis vuitton wallet Replica Gucci Belts Louis Vuitton Replica replica louis vuitton m40780 borse louis vuitton imitazioni cartier love bracelet replica louis vuitton fake louis vuitton bag replica louis vuitton keepall replica replica cartier ring Replica Louis Vuitton backpack dior replica louis vuitton wallet replica goyard replica cartier love bracelet replica louis vuitton replica Portafoglio louis vuitton falso louis vuitton outlet louis vuitton wallet replica fake louis vuitton mini purse Louis Vuitton Tasche aus Turkei Louis Vuitton false fatte bene Scarpe louis vuitton imitazioni louis vuitton imitazioni replica louis vuitton replica louis vuitton louis vuitton replica Louis Vuitton replica replica cartier love bracelet replica cartier love bracelet replica Louis Vuitton shoes louis vuitton shoes replica louis vuitton shoes replica Louis Vuitton wallet replica imitazioni borse louis vuitton replica louis vuitton replica louis vuitton louis vuitton wallet replica replica louis vuitton m44813 fake louis vuitton sling