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Invisalign : My Experience | Jennifer Marie
Invisalign : My Experience | Jennifer Marie
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How does Invisalign work?
How does Invisalign work?
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Braces vs. Invisalign Teen: My Switch!
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INVISALIGN: full, detailed review! Process, pain, cost, cleaning, pros and cons, tips
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Our Invisalign Journey - #1
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My Invisalign Journey!
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Invisalign Clear Braces Vs Metal Braces @Hodgetwins
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Teeth Whitening & Invisalign Experience!
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My Invisalign Journey! (One Month) How-to, tips, pain, miscellaneous
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Can You Makeout With Invisalign?
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MY INVISALIGN experience - Before & After
MY INVISALIGN experience - Before & After
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DIENTES HERMOSOS! Invisalign: Precio, Resultados y Preguntas Frecuentes!
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Invisalign - O aparelho invisível
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❤ Invisalign® Update #2! ❤
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How Invisalign Works and How To Care For Your Aligners To Speed Up Treatment
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Overview of invisalign treatment
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From Wikipedia, the free encyclopedia
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Align Technology
Type Public
Traded as ALGN
Industry Orthondic
Founded 1997
Founders Zia Chishti and Kelsey Wirth
Headquarters San Jose, California, United States
Key people Thomas Prescott, Chief Executive Officer
Products Invisalign, iTero Scanner and Orthocad products
Revenue $560 million[1]
Employees 3,200[1]
Website www.aligntech.com

Invisalign is an alternative to wire braces that uses transparent, incremental aligners to adjust teeth. It is manufactured by Align Technology, a multinational medical device company headquartered in San Jose, California. The Invisalign treatment process involves taking a mold of the patient's teeth that is scanned in order to create a computerized model. Using the doctor's treatment plan, the computer model creates stages between the current and desired teeth positions that are used to create molds for individual aligners.

The company was founded in 1997. The Invisalign product was approved by the Food and Drug Administration in 1998. $140 million in venture capital was raised from 1997 to 2000 and another $130 million was raised in an initial public offering in 2001. The founders left the company and started Orthoclear in 2005, which resulted in several legal disputes. By 2012, there had been two million Invisalign patients and most dentists and orthodontists in North America had been trained on the Invisalign system.

History[edit]

Origins[edit]

The idea for Invisalign was conceived by Zia Chishti, a computer scientist that noticed after his teeth moved from not wearing a retainer, putting the clear plastic retainer back on was able to move them back.[2][3] He developed a computer program that could replace braces by designing incremental retainers.[3] Chishti and a fellow Stanford student, Kelsey Wirth, co-founded Align Technology in 1997[3] in a garage in Palo Alto, California.[4] The Invisalign system was approved by the Food and Drug Administration in 1998[2][5] and began to be sold in the U.S. in 1999.[6][7]

Establishment[edit]

Orthodontists were resistant to adopting Invisalign at first, in particular because the founders had no orthodontic credentials or expertise, but the product became popular among consumers.[2] In 2000 Align Technology planned a $31 million television advertising campaign that The New York Times said would be “the most aggressive consumer advertising plan the dental profession has ever seen.”[8] The company raised about $140 million in funding over four rounds from 1997 to 2000.[3][8][9] $130 million in additional funding was raised in 2001 through an initial public offering on NASDAQ.[3][10] By 2001, 75 percent of the 8,500 orthodontists in North America had been trained on the Invisalign system.[3][11] That same year, Align Technology made Invisalign available to general dentists following a class-action lawsuit that alleged making the system available only to orthodontists resulted in unfair competition for dentists.[3][11]

In the early 2000s, Align Technology was spending nearly all of its revenues on marketing and advertising. It was losing about $18 million per year.[12][13] Cofounders Wirth and Chishti resigned from Align Technology in 2001 and 2003 respectively,[5] with Thomas Prescott replacing Chishti as CEO in March 2002. Prescott re-focused the company on North America and cut the marketing budget to about one-third its original size.[12][13]

In 2005, Chishti and others created competitor OrthoClear.[5] This resulted in a legal dispute regarding alleged patent infringement by OrthoClear[14] and a series of lawsuits whereby both Align and OrthoClear alleged the other had engaged in false advertising, defamation and trademark infringement, among other things. The “longstanding round of bitter litigation” was settled in 2006.[5][15] Align paid OrthoClear $20 million and OrthoClear agreed to end its operations.[14]

The Invisalign system grew from 80,000 patients in 2002 to 175,000 in 2004. It won several awards for stereolithography, medical design and fast-growth. Align Technology was profitable for the first time in 2003. In 2005 the company expanded into Japan[12] and acquired General Orthodontic, an orthodontics firm that supported doctors prescribing the Invisalign system.[1][12] Later that year the Harvard School of Dental Medicine began requiring that its orthodontic graduate students complete Invisalign certification before they graduate.[12] By 2008 more than 500,000 patients had used Invisalign,[16] which grew to two million by 2012.[1]

Recent developments[edit]

In 2007 the Academy of General Dentistry approved Align Technology's Program Approval for Continuing Education (PACE) program.[1] The company also created the AlignTech Institute, which provides educational resources to doctors.[17] In 2009, Align Technology began to require that doctors prescribing Invisalign complete at least ten cases per year and ten hours of training in order to maintain their Invisalign provider status. In January 2010, 20,000 doctors had their certification suspended for not meeting the requirements, but a class action lawsuit regarding providers that paid for training under the original rules resulted in some certifications being re-instated.[18] In March 2011, Align Technology acquired, Cadent System, Inc., a dentist firm, for $190 million.[19]

Align Technology[edit]

As of 2012, 92 percent of Align Technology's revenues were from sales of Invisalign, 76 percent of which came from the US market.[1] The company also produces iTero scanner products and OrthoCAD digital services.[1] It supports several different types of Invisalign treatment plans. In addition to the default "Full" version, there is a Teen version with wear indicators and replacements for lost aligners. An Assist version provides additional tools and services to assist the doctor and several Express versions have fewer aligners at a lower cost for minor adjustments.[1] Align Technology also produces retainers used after treatment under the Vivera brand.[1]

The Invisalign Express 10, which uses 10 aligners, was introduced in 2005.[20] The Vivera brand retainers were developed in 2007 and Invisalign Teen was released the following year.[1] Invisalign 1.5 was released in 2009. It was followed by Invisalign G3 in 2010 and G4 in 2011. Invisalign G3 and G4 were designed for more complex treatments. An Invisalign Express 5 version, which uses 5 aligners, was introduced in 2012.[14] In February 2014, Align Technology released a G5 product designed to treat deep bites.[21]

Support, software engineering, pre-production and administrative functions are done from Align Technology's headquarters in California. The manufacturing of Invisalign aligners is performed in Mexico[3] and treatment plans are created in Costa Rica. Align Technology also operates separate subsidiaries in Hong Kong and Australia that sell Invisalign in their respective markets.[17] Align Technology provides training and certification to doctors,[6][22] as well as equipment and aligners related to the Invisalign system.[1]

Treatment process[edit]

A 3D representation of a patient's teeth in the Invisalign software

Once a dentist or orthodontist decides that a patient is a candidate for Invisalign,[3] treatment begins with the doctor taking x-ray, photographs, a bite registration and polyvinyl siloxane impressions of the patient's teeth and gums. Additionally, the dentist or orthodontist completes a six-page form with a diagnosis and treatment plan.[2][4][6][23] Dental impressions are sent to Align Technology and scanned using a computerized tomography scanner which creates a digital 3D representation of the patient's teeth.[4][6] Computer technicians move the teeth to the desired location in a software program called Treat, which creates stages between the current and desired teeth positions for individual aligners.[6][23][24] About six to forty-eight aligners may be needed depending on the patient, with each aligner moving teeth up to .33 millimeters.[2][25][26]

A computer graphic representation of the projected teeth movements is provided to the doctor and patient in a software program called ClinCheck for approval or modification before aligners are manufactured.[2][6][24] The aligners are modeled using CAD-CAM (computer-aided-design and computer-aided-manufacturing) software and manufactured using a rapid prototyping technique called stereolithography.[4][6] The molds for the aligners are built in layers using a photo-sensitive liquid resin that cures into a hard plastic when exposed to a laser.[4] The aligners are made from an elastic thermoplastic material that applies pressure to the teeth to move into the aligner's position.[24][27][28] Patients that need a tooth rotated or pulled down may have a small tooth-colored[29] composite attachment bonded onto certain teeth.[24] More attachments can make the aligners less aesthetically pleasing.[6][16] Reproximation, (also called interproximal reduction or IPR and colloquially, filing or drilling), is sometimes used at the contacts between teeth to allow for a better fit.[30][31]

Each aligner is intended to be worn 20 hours a day for two-to-three weeks.[9][25] On average the treatment process takes 13.5 months.[32] Refinements may be ordered by the doctor during the treatment process.[16] The aligner is removed for brushing, flossing and eating.[7] Once the treatment period has concluded, the patient is advised to continue wearing a retainer at night for the foreseeable future.[16]

When the Invisalign system was first developed, many of the aligner manufacturing processes were done by hand and computer technicians had to modify each tooth in the computerized model individually.[4]

Comparison to wire braces[edit]

A woman wearing Invisalign

The main disadvantages of Invisalign in comparison to conventional braces are cost and technical limitations in handling complex cases.[33] In a typical case, conventional braces treatment may cost $4,000, while Invisalign would be $5,600 and insurance may cover $1,000 of either treatment.[3] The primary advantages of Invisalign is that they are more visually appealing[34] and comfortable.[35][36] It is also easier to eat, brush and floss with a removable device.[34][35] For orthodontists and dentists, Invisalign makes it easier to track treatment progress in a virtual model, but more difficult to adjust treatment after the aligners have already been manufactured.[32]

References[edit]

  1. ^ a b c d e f g h i j k Align Technology, Inc. SWOT Analysis. (2013). 1-8.
  2. ^ a b c d e f Basavaraj Subhashchandra Phulari (June 30, 2013). History of Orthodontics. JP Medical Ltd. ISBN 978-93-5090-471-8. 
  3. ^ a b c d e f g h i j Coughlan, Anne; Julie Hennessy, Invisalign: Orthodontics Unwired, Kellogg School of Management  }
  4. ^ a b c d e f Tuncay, Orhan (2006). The Invisalign System. Quintessence Publishing Co, Ltd. ISBN 1850971277. 
  5. ^ a b c d "OrthoClear, Align end lengthy legal fight". Silicon Valley Business Journal. September 28, 2006. Retrieved January 9, 2013. 
  6. ^ a b c d e f g h Thomas Rakosi; Thomas M. Graber (2010). Orthodontic and Dentofacial Orthopedic Treatment. Thieme. ISBN 978-3-13-127761-9. 
  7. ^ a b Isaacs, Barbara (February 25, 2001). "Good riddance to metal-mouth misery". Knight Ridder. Retrieved January 9, 2013. 
  8. ^ a b Feder, Barnaby J. (18 August 2000). "Orthodontics Via Silicon Valley; A Start-Up Uses Computer Modeling And Venture Capital to Reach Patients". The New York Times. p. 1. 
  9. ^ a b Liedtke, Michael (September 23, 2000). "Using new software, dentists straighten teeth without braces". Associated Press. Retrieved January 9, 2014. 
  10. ^ Liedtke, Michael (January 26, 2001). "Align Technology Raises $130 Million in IPO". Associated Press. Retrieved January 9, 2014. 
  11. ^ a b Bush, Jewel (August 14, 2001). "Stealth Braces". NYT Regional Newspapers. Retrieved January 9, 2013. 
  12. ^ a b c d e Gretchen, Antelman (2008). International Directory of Company Histories 94. St. James Press. pp. 15–18. ISBN 1-55862-615-8. 
  13. ^ a b Lau, Gloria (May 3, 2004). "It has a bracing impact on patients; Align Technology". 
  14. ^ a b c Benesh, Peter (March 19, 2007). "No More Mouthfuls of Metal". Investor's Business Daily. Retrieved January 9, 2013. 
  15. ^ "Align Technology and OrthoClear end Litigation". Ortho Tribune. October 16, 2006. Retrieved January 7, 2013. 
  16. ^ a b c d Sultan, Aisha (January 21, 2008). "Braces offer ‘invisible’ fix". St. Louis Post-Dispatch. Retrieved January 9, 2014. 
  17. ^ a b Jack W. Plunkett (March 1, 2009). Plunkett's Companion to the Almanac of American Employers 2009: Mid-Size Firms. Plunkett Research, Ltd. p. 134. ISBN 978-1-59392-126-2. 
  18. ^ Rasmussen, March (March 2011), Invisalign Agrees to Settlement in Class Action Lawsuit, American Dental Association, retrieved March 25, 2014 
  19. ^ "Restructuring Roundup: Align to close New Jersey facility, will cut 119 jobs". Medical Device Daily. September 9, 2011. 
  20. ^ "Medical Devices; Pricing simplified for Invisalign". Science Letter. December 27, 2005. 
  21. ^ "Treatment of deep bite malocclusions". BDJ 216 (5): 260–260. 2014. doi:10.1038/sj.bdj.2014.164. ISSN 0007-0610. 
  22. ^ Robert R. Edwab (2003). Essential Dental Handbook: Clinical and Practice Management Advice from the Experts. PennWell Books. p. 412. ISBN 978-0-87814-624-6. 
  23. ^ a b Bishop A, Womack R, and Derakhshan M. (Sep-Oct 2002)., An esthetic and removable orthodontic treatment option for patients: Invisalign, The Dental Assistant: 14 
  24. ^ a b c d Birte Melsen (3 February 2012). Adult Orthodontics. John Wiley & Sons. pp. 353–. ISBN 978-1-4443-5574-1. 
  25. ^ a b Bush, Jewel (August 14, 2001). "Stealth Braces". NYT Regional Newspapers. Retrieved January 9, 2013. 
  26. ^ Kravitz, Neal D.; Kusnoto, Budi; BeGole, Ellen; Obrez, Ales; Agran, Brent (2009). "How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign". American Journal of Orthodontics and Dentofacial Orthopedics 135 (1): 27–35. doi:10.1016/j.ajodo.2007.05.018. ISSN 0889-5406. 
  27. ^ Cowley, Daniel (August 1, 2012), Effect of Gingival Margin Design on Retention of Thermoformed Orthodontic Aligners, University of Nevada, retrieved March 11, 2014 
  28. ^ Alexander, Justin (2012), Effect of Reducing the Incremental Distance of Tooth Movement per Aligner while Maintaining Overall Rate of Movement on Self-Reported Discomfort in Invisalign Patients, Saint Louis University, retrieved March 11, 2014 
  29. ^ Joffe, L. (2003). "Invisalign(R): early experiences". Journal of Orthodontics 30 (4): 348–352. doi:10.1093/ortho/30.4.348. ISSN 1465-3133. PMID 14634176. 
  30. ^ Humber, PV. (2008), A Snapshot of Invisalign, Aesthetic Dentistry Today 2 (1): 85–88, retrieved 2011-01-28 
  31. ^ Boyd RL (August 2008), Esthetic orthodontic treatment using the invisalign appliance for moderate to complex malocclusions, Journal of Dental Education 72 (8): 948–67, PMID 18676803, retrieved January 28, 2011 
  32. ^ a b Fogel, Joshua; Janani, Raymond (2010). "Intentions and behaviors to obtain Invisalign". Journal of Medical Marketing 10 (2): 135–145. doi:10.1057/jmm.2009.50. ISSN 1745-7904. 
  33. ^ Shalish, M.; Cooper-Kazaz, R.; Ivgi, I.; Canetti, L.; Tsur, B.; Bachar, E.; Chaushu, S. (2011). "Adult patients' adjustability to orthodontic appliances. Part I: a comparison between Labial, Lingual, and Invisalign". The European Journal of Orthodontics 34 (6): 724–730. doi:10.1093/ejo/cjr086. ISSN 0141-5387. 
  34. ^ a b Kuncio, Daniel et al., D.; Maganzini, A.; Shelton, C.; Freeman, K. (2006), Invisalign and Traditional Orthodontic Treatment Postretention Outcomes Compared Using the American Board of Orthodontics Objective Grading System, Angle Orthodontist 77 (5): 864–869, doi:10.2319/100106-398.1, PMID 17685783 
  35. ^ a b Joffe, L. (2003), Current Products and Practice Invisalign: early experiences, Journal of Orthodontics 30 (4): 348–352, doi:10.1093/ortho/30.4.348, PMID 14634176 
  36. ^ Akhlaghi A, et al. (2007), Outcome of Invisalign and traditional orthodontic treatment using PAR index, J Dent Res 77 
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