The use of temporary individual polymer implants in a biological object (sheep) with fixation by dental implants and bone screws. Report

Trauma, facial skeleton injuries, and the removal of neoplasms can lead to defects in the cranio-maxillofacial region and uncontrolled tissue constriction. This greatly limits the possibilities for reconstructive surgery and complicates further treatment. Standard and personalized titanium-based and titanium alloy-based metal structures are commonly used. Biodegradable materials for internal fixation are rarely used due to unpredictable resorption times and reduced strength characteristics. The purpose of a temporary/permanent individual polymer maxillofacial implant is to replace (eliminate) defects in the facial skeleton and dentition after trauma, inflammatory processes, congenital pathology, surgical treatment of craniofacial cancer, tooth loss, and extreme jaw atrophy. This article presents a protocol and results of using temporary individual polymer implants (VIPI) on.

1. Dikov Y.Y., Sobolevskiy V.A., Kropotov M.A., Ivashkov V.Y. Application of 3D-modeling in 3D-printing for the lower jaw reconstruction. Head and Neck Tumors (HNT). 2015;5(1):22–26. (In Russ.) https://doi.org/10.17650/2222-1468-2015-1-22-26.

2. Chiapasco M., Biglioli F., Auteliano L. Clinical outcome of dental implants placed in fibula-free flaps used for the reconstruction of maxillo-mandibular defects following ablation for tumors or osteoradionecrosis. Clin. Oral. Impl. Res. 2006; 17:220–228.

3. L. Rasmusson, J Abtahi. Bisphosphonate associated osteonecrosis of the jaw: an update on pathophysiology, risk factors, and treatment. International journal of dentistry, 2014. http://dx.doi.org/10.1155/2014/471035.

4. Yoshimura H, Matsuda S, Ohba S, Minegishi Y, Nakai K, Fujieda S, Sano K. Stereolithographic model-assisted reconstruction of the mandibular condyle with a vascularized fibular flap following hemimandibulectomy: Evaluation of morphological and functional outcomes. Oncol Lett. 2017;14(5):5471–5483. https://doi.org/10.3892/ol.2017.6909.

5. Pellegrino G, Tarsitano A, Basile F, Pizzigallo A, Marchetti C. Computer-aided rehabilitation of maxillary oncological defects using zygomatic implants: a defect-based classification. J Oral Maxillofac Surg. 2015;73(12):2446.e1-.e11. https://doi.org/10.1016/j.joms.2015.08.020.

6. Qassemyar Q, Assouly N, Temam S2, Kolb F. Use of a three-dimensional custom-made porous titanium prosthesis for mandibular body reconstruction. Int J Oral Maxillofac Surg. 2017 Oct;46(10):1248–1251. Doi: 10.1016/j.ijom.2017.06.001. Epub 2017 Jun 22.

7. Fratzl P. Structure and mechanical quality of the collagen –mineral nano-composite in bone. J MaterChem. 2004;14:2115–2123.

8. Dr.W.-D. Grimm, M. Ploger, I. Schau, M.A. Vukovic, E.V. Shchetinin, А.B. Akkalaev, R.A. Avanesian, S.V. Sirak. Сomplex, three-dimensional reconstruction of critical size defects following delayed implant placement using stem cell-containing subepithelial connective tissue graft and allogenic human bone blocks for horizontal alveolar bone augmentation: a case report as proof of clinical study principles // Medical news of North Сaucasus. – 2014. – Т. 9. – № 2. – Р. 125–127. DOI: 10.14300/mnnc.2014.09037.

9. Modified indexing for the immediate interim restoration of a dental implant / Jose Mauricio dos Santos Nunes Reis, Filipe de Oliveira Abi-Rached, Cassio Rocha Scardueli, Ligia Antunes Pereira Pinelli // the journal of prosthetic dentistry. – 2014. – Vol. 112(2). – P. 369–372.

10. Alexander Dolgolev, Igor Reshetov, Dmitry Svyatoslavov, Mikhail Sinelnikov, Konstantin Kudrin, Vladimir Dub, Vladimir Put, Vladimir Anikin. Experimental Biointegration of a Titanium Implant in Delayed Mandibular Reconstruction. Journal of Personalized Medicine. 2020,10(1),6. https://doi.org/10.3390/jpm10010006.

11. Put V.A., Dolgalyev A.A., Usatov D.A., Gladyshev M.V., Basin E.M., Polshina V.I., Semerikov D.Yu., Choniasvili D.Z. Possibilities of additive technologies in directed tissue regeneration and implantation in a patient with a mandibular defect. Clinical case. Medical Alphabet No. 30(2023), Dentistry Volume No. 4, pp. 12–16. https://doi.org/10.33667/2078-5631-2023-30-51-55.