Development of a digital fabrication device for the manufacture of removable dentures

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BACKGROUND: Digital technologies such as those used to manufacture complete removable dentures have become widely popular in the field of dentistry. The fabrication of an accurate, monolithic removable denture where the teeth and base are made using subtractive or additive technologies is crucial.

AIM: The aim of the current study was to develop a device that permits manufacture of removable dentures using digital technologies.

MATERIAL AND METHODS: The article describes modern methods of manufacturing complete removable dentures.

RESULTS: With the help of digital technologies, it was possible to obtain a monolithic prosthesis made of plastic, eliminating inaccuracies in the positioning of teeth during placement in the basis of the prosthesis, as well as to connect the basis of the prosthesis and teeth using acrylic plastic. Additionally, a brief description of the basic tools and materials necessary for this technique have also been provided.

CONCLUSION: The advantages of digitally manufacturing complete removable dentures include high accuracy, absence of overbite, high speed, and minimal shrinkage. These benefits allow us to conclude that the use of digital protocols for the manufacture of complete removable dentures is essential in order to achieve favorable treatment outcomes that meet the expectations of the doctor and the needs of the patient.

作者简介

Matvey Terechov

RUDN University

Email: matter25@mail.ru

postgraduate student

俄罗斯联邦, Moscow

Viktoriya Semenova

RUDN University

Email: dr.vsemenova@yandex.ru
俄罗斯联邦, Moscow

Samvel Apresyan

RUDN University

编辑信件的主要联系方式.
Email: dr.apresyan@gmail.com
ORCID iD: 0000-0002-3281-707X

MD, Dr. Sci. (Med.), Professor, dentist

俄罗斯联邦, Moscow

Alexander Stepanov

RUDN University

Email: stepanovmd@list.ru
ORCID iD: 0000-0002-6543-0998

MD, Dr. Sci. (Med.), Professor, dentist

俄罗斯联邦, Moscow

Pavel Kravets

RUDN University

Email: pashatex83@gmail.com

dental technician

俄罗斯联邦, Moscow

参考

  1. Apresyan SV. Digital planning of orthopedic dental treatment. Russian Dental Journal. 2019;23(3–4):158–164. (In Russ). doi: 10.18821/1728-2802-2019-23-3-4-158-164
  2. Steinmassl PA, Klaunzer F, Steinmassl O, et al. Evaluation of Currently Available CAD/CAM Denture Systems. Int J Prosthodont. 2017;30(2):116–122. doi: 10.11607/ijp.5031
  3. Srinivasan M, Cantin Y, Mehl A, et al. CAD/CAM milled removable complete dentures: an in vitro evaluation of trueness. Clin Oral Investig. 2017;21(6):2007–2019. doi: 10.1007/s00784-016-1989-7
  4. Radford DR, Juszczyk AS, Clark RK. The bond between acrylic resin denture teeth and the denture base: recommendations for best practice. Br Dent J. 2014;216(4):165–167. doi: 10.1038/sj.bdj.2014.99
  5. Clements JL, Tantbirojn D, Versluis A, Cagna DR. Do denture processing techniques affect the mechanical properties of denture teeth? J Prosthet Dent. 2018;120(2):246–251. doi: 10.1016/j.prosdent.2017.10.02
  6. Goodacre BJ, Goodacre CJ, Baba NZ, Kattadiyil MT. Comparison of denture tooth movement between CAD-CAM and conventional fabrication techniques. J Prosthet Dent. 2018;119(1):108–115. doi: 10.1016/j.prosdent.2017.02.009
  7. Lee S, Hong SJ, Paek J, et al. Comparing accuracy of denture bases fabricated by injection molding, CAD/CAM milling, and rapid prototyping method. J Adv Prosthodont. 2019;11(1):55–64. doi: 10.4047/jap.2019.11.1.55
  8. Meneghihi A, Mazzarella S, Di Franco A. Full upper and lower duplicate dentures using Vertysystem Furbo. GAP Australasian-Dentist-May. June 2019. P. 82–84.
  9. Patent RUS №2722458/ 01.06.2020 Byul, №16, MPK:A61C13/00. Apresyan SV, Kravets PL. “Ustroystvo dlya izgotovleniya zubnykh protezov”: № 2020107773 (In Russ).
  10. Vertysystem.com [Internet]. [cited: 2021 Dec 20]. Доступ по ссылкe: https://www.vertysystem.com/us/assets/kit-vertysystem-full-denture_en.pdf
  11. Trasformersystem.com [Internet]. All-in Spacer Package Descrition. [cited: 2021 Dec 20]. Available from: http://www.trasformersystem.com/all-in-en/
  12. Kurlyandskiy VY. Guide to practical classes in orthopedic dentistry. Third edition. Moscow: Medicine; 1973. (In Russ).
  13. Lebedenko IY, Kalivrajiyan ES, Ibragimov TI. Manual of orthopedic dentistry. Prosthetics in the complete absence of teeth. Moscow: Medicine; 2005. (In Russ).

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2. Fig. 1. Verticulator for the manufacture of removable dentures in digital manufacturing technology

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3. Fig. 2. Verticulator for the manufacture of removable dentures in digital manufacturing technology with an additional platform

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4. Fig. 3. Virtual image of the prototype of a removable denture in the Exocad program

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5. Fig. 4. Polymer prototype of a removable denture made by 3D printing

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6. Fig. 5. Virtual placement of teeth in the Exocad program

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7. Fig. 6. The milled basis of the prosthesis made of a polymer of a red-pink polymer, the color corresponding to the color of the gum

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8. Fig. 7. The polymer prototype of the prosthesis is fixed in a verticulator for replication

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9. Fig. 8. Permanent prosthesis made using the developed device

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