The analysis of innovative manufacturing method of complete removable dentures

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BACKGROUND: The optimization of the digital protocol in the manufacture of complete removable dentures to obtain milled dentures with design close to those modeled using computer-aided design and computer-aided manufacturing software is an urgent problem in dental prosthetics.

AIM: To analyze the manufacturing of complete removable dentures and demonstrate the results of in vitro studies of prostheses obtained according to the developed protocol using the Kravets verticulator and prostheses in which the bases are bonded to the teeth with resins of cold and hot polymerization.

MATERIALS AND METHODS: With digital technologies, using the proposed modernized Wieland Digital Denture (Ivoclar Vivadent) protocol, 10 bases and 10 corresponding dentitions were obtained by milling, according to pre-made templates obtained using 3D printing. Then, five samples were bonded with cold cure resin using the verticulator, and five samples were made with hot cure resin and verticulator.

RESULTS: On most of the tooth treated with hot cure resin, the interlayer between the structures of the base and dentition was not observed, or interlayers had a thickness of 80±4 microns. The thickness of the interlayer of the cold curing specimens was 273±25 microns. Pores are not observed for plastic bonded specimens, both cold and hot cured.

CONCLUSION: The proposed method allows the use of digital technologies to obtain a monolithic plastic prosthesis, which eliminates inaccuracies in tooth positioning, during placement in the base of the prosthesis, and bind the base of the prosthesis and teeth using hot-curing acrylic plastic.

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作者简介

Matvei Terekhov

Peoples’ Friendship University of Russia

编辑信件的主要联系方式.
Email: matter25@mail.ru
ORCID iD: 0000-0003-3498-0855
SPIN 代码: 7472-9031

Postgraduate Student

俄罗斯联邦, Moscow

Samvel Apresyan

Peoples’ Friendship University of Russia

Email: dr.apresyan@gmail.com
ORCID iD: 0000-0002-3281-707X
SPIN 代码: 6317-9002

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

俄罗斯联邦, Moscow

Aleksandr Stepanov

Peoples’ Friendship University of Russia

Email: stepanovmd@list.ru
ORCID iD: 0000-0002-6543-0998
SPIN 代码: 5848-6077

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

俄罗斯联邦, Moscow

参考

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  2. Apresyan SV, Stepanov AG, Antonik MM, et al. Kompleksnoe tsifrovoe planirovanie stomatologicheskogo lecheniya (prakticheskoe rukovodstvo). Apresyan SV, editor. Moscow: Mozartika; 2020. (In Russ).
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2. Fig. 1. Surface profile of the sample of cold curing.

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3. Fig. 2. Surface of tooth 1.6 on one of the surfaces of the cold polymerization sample at ×150 magnification.

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4. Fig. 3. Surface of tooth 1.7 on one of the surfaces of the cold polymerization sample at ×150 magnification.

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5. Fig. 4. Connection thickness of the bond layer in the tooth area 1.6 of the sample using hot polymerization resin.

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