retracted
Dentistry
doi: 10.25005/2074-0581-2018-20-2-3-170-175
ELIMINATION OF MANDIBULAR DEFECTS BY ENDOPROSTHESIS CREATED BY TECHNOLOGY OF ADDITIVE STEREOLITHOGRAPHY

M.Sh. Mirzoev1, M.N. Shakirov2, D.I. Khushvakhtov1, R.N. Dzhonibekova3, E.G. Grigoryev4

1Department of Maxillofacial Surgery with Pediatric Dentistry, Institute of Postgraduate Education in Healthсare of the Republic of Tajikistan, Dushanbe, Republic of Tajikistan
2Department of Maxillofacial Surgery and Dentistry of the Siberian State Medical University, Tomsk, Russian Federation
3Department of Maxillofacial Surgery, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan
4Division of Radiation Diagnostics, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russian Federation

Objective: Improving the technology of creating and manufacturing individual implantation designs in maxillofacial surgery based on stereolithographic stimulation.

Methods: The study is based on the analysis of the results of treatment of 12 patients aged 17-40 years with different pathologies of the mandibular bone structures: adamantinoma – 5 (41.7%), posttraumatic deformities – 2 (16.6%) and bisphosphonate-related and radiation-related necrosis of the lower jaw – 5 (41,7%). Both clinical and laboratory methods of examination of all patients were carried out according to the traditional scheme, and as a radiologic study, we chose CT in the 3D printer mode. Its indices allowed creating an additive technology of reproduction and manufacturing of a stereolithographic model of the maxillofacial bones. On these models, taking into account the volume, size of the defect and its individual characteristics, a wax composite was prepared, and then prepared a design of an endoprosthesis made of nickel-titanium alloy.

Results: The results of surgical interventions in 12 patients who underwent substitution of mandible defects were performed using implant structures based on CT data in a 3D printer mode using stereolithographic models, showed their high efficiency. All the operated patients had a primary wound healing in the postoperative period, earlier restoration of the volume of the lower jaw movement, which is confirmed by clinical and electromyographic studies of the function of the masticatory muscles of the operated zone.

Conclusion: The use of individual implant structures to replace bone defects of the lower jaw, created in the 3D printer mode on stereolithographic models, allows to shorten the operation time and fully restore the lost anatomical and aesthetic disorders of the maxillofacial area.

Keywords: Adamantinoma, implantation structure, nickel-titanium alloy, endoprostheses, stereolithography, 3D printer.

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Authors' information:

Mirzoev Mansurdzhon Shomilovich,
Candidate of Medical Sciences, Head of the Department of Maxillofacial Surgery with Pediatric Dentistry, Institute of Postgraduate Education in Healthcare of the Republic of Tajikistan

Shakirov Mukhamedzhan Nigmatovich,
Doctor of Medical Sciences, Professor of the Department of Maxillofacial Surgery and Dentistry of the Siberian State Medical University

Khushvakhtov Dodardzhon Izzatovich,
Candidate of Medical Sciences, Assistant of the Department of Maxillofacial Surgery with Pediatric Dentistry, Institute of Postgraduate Education in Healthcare of the Republic of Tajikistan

Dzhonibekova Roziya Nadzhmuddinovna,
Candidate of Medical Sciences, Head of the Department of Maxillofacial Surgery, Avicenna Tajik State Medical University

Grigoryev Evgeniy Gennadievich,
Candidate of Medical Sciences, Senior Researcher, Division of Radiation Diagnostics, Tomsk National Research Medical Center, Russian Academy of Sciences

Conflicts of interest: No conflict

Address for correspondence:

Mirzoev Mansurdzhon Shomilovich

Candidate of Medical Sciences, Head of the Department of Maxillofacial Surgery with Pediatric Dentistry, Institute of Postgraduate Education in Healthcare of the Republic of Tajikistan

734026, Republic of Tajikistan, Dushanbe, Somoni Ave., 59

Tel.: (+992) 919 172701

E-mail: mirzoev_1965@bk.ru

Materials on the topic:
  1. A PRACTICAL APPLICATION OF ADDITIVE MANUFACTURING TECHNOLOGY IN ORTHODONTIC TREATMENT: CASE PRESENTATION
  2. EVALUATION OF THE AESTHETIC RESULT OF A SINGLE DENTAL IMPLANT PROSTHETICS
  3. APPLICATION OF TOUCHLESS METHODS FOR MAKING ENTRIES IN DENTAL RECORDS
  4. EVALUATION OF FITTING ACCURACY OF METAL FRAMEWORKS OF FIXED DENTURES DEPENDING ON THEIR LENGTH
  5. Use a cu stom-mad e CAD probe holders for periodontal microcircu lation assessment by laser Doppler flowmetry
  6. ELECTRON MICROSCOPIC PROPERTIES OF A NEW ANTIMICROBIAL NANODRUG BASED ON COPPER-CALCIUM HYDROXIDE COMPOUND
  7. SOCIAL SURVEY ON PERIODONTAL CARE OUTPATIENT VISITS RATE
  8. TITANIUM CLAMPS WITH MODIFIED SURFACE AND THEIR APPLICATION FOR MANDIBLE OSTEOSYNTHESIS
  9. STUDY OF QUALITY OF LIFE OF DENTAL PATIENTS USING IMMEDIATE PROTHESES IN THE POST-EXTRACTION PERIOD BEFORE IMPLANTATION
  10. CLINICAL AND X-RAY INDICES OF PERIODONTAL AND PERIAPICAL TISSUES OF ENDONTICAL HEALED TOOTH IN PATIENTS WITH ENDODONTO-PERIODONTAL COMPLICATIONS

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