Background. Dental implantation is one of the most predictable methods of oral rehabilitation in partially and completely edentulous patients, but its long-term outcomes depend not only on local anatomical conditions and surgical technique, but also on systemic mineral metabolism. The dissertation used for this article demonstrates that young and middle-aged patients with tooth loss often have decreased vitamin D3 levels combined with impaired bone remodeling and altered laboratory parameters that may affect osseointegration. Previous research mainly focused on postmenopausal women and patients with clinically manifest osteoporosis, whereas similar metabolic disturbances in younger adults remain underestimated. Objective. To assess the role of laboratory markers of mineral metabolism and hormonal status as factors associated with dental implant outcomes in young and middle-aged patients with vitamin D3 deficiency. Materials and methods. The article was prepared on the basis of the clinical section of a doctoral dissertation devoted to rehabilitation of patients with tooth loss associated with mineral metabolism disorders in vitamin D3 deficiency. The examination protocol included clinical assessment, imaging methods and laboratory evaluation of vitamin D3, osteogenesis markers, hormonal profile, calcium-phosphorus metabolism and routine biochemical parameters. Clinical endpoints included the postoperative course, inflammatory peri-implant complications, features of osseointegration and the overall success of implant treatment. Results. The dissertation data show that young and middle-aged patients with tooth loss frequently have serum vitamin D3 levels below 20 ng/ml and may demonstrate laboratory signs of mineral metabolism disturbances before implantation. Timely referral to an endocrinologist, individualized correction of vitamin D3 deficiency and consideration of laboratory status in surgical planning improve treatment predictability and make it possible to achieve implant success in 97.4% of cases. Adverse outcomes were associated not so much with implantation itself as with underdiagnosed and uncorrected metabolic disturbances affecting bone remodeling and peri-implant tissue stability. Conclusion. Extended laboratory screening including 25(OH)D, hormonal profile and bone turnover markers should be considered an important component of preoperative assessment in young and middle-aged patients undergoing implant-supported rehabilitation. An interdisciplinary approach involving both the dentist and the endocrinologist improves risk stratification and may increase the long-term effectiveness of implant treatment.

Keywords: dental implantation, vitamin D3, 25(OH)D, laboratory markers, mineral metabolism, osseointegration, peri-implantitis.

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Dyachkova E.Yu., Kazumova A.B., Barabash A.V. Laboratory Markers Of Mineral Metabolism And Outcomes Of Dental Implantation In Young And Middle-Aged Patients With Vitamin D3 Deficiency. Dentistry: Theory and Practice, 2026, vol. 4, no. 1, pp. 5–12. https://doi.org/10.65324/dtp005

Transverse maxillary deficiency associated with posterior crossbite is one of the most common dentofacial deformities. Orthodontic treatment modalities such as rapid palatal expansion and rapid maxillary expansion are widely used to correct this condition. After the completion of skeletal maturation, non-surgical palatal expansion results predominantly in dental movement within the alveolar process rather than true skeletal expansion. This may lead to numerous complications, including molar extrusion and periodontal problems. Therefore, combined surgical and orthodontic treatment is considered a more effective and safer approach for correcting transverse discrepancies in adult patients. Segmental Le Fort I osteotomy and surgically assisted rapid maxillary expansion are the most commonly employed surgical techniques for the treatment of transverse maxillary discrepancies.

Keywords: surgically assisted rapid maxillary expansion, pterygomaxillary disjunction osteotomy, complications, age-related limitations, dentistry.

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Sipkin A.M., Karachunskij G.M., Smirnov A.M., Ambaryan T.A. Surgically Assisted Rapid Maxillary Expansion (SARME): Key Aspects, Complications, and Technique. Dentistry: Theory and Practice, 2026, vol. 4, no. 1, pp. 13–18. https://doi.org/10.65324/dtp006

Background. Dental implantation is the gold standard for rehabilitation of patients with partial and complete tooth loss. The surface condition of implants is a key determinant of long-term survival — both at placement (in terms of roughness and biocompatibility) and at late stages when inflammatory complications arise. Laser technologies occupy a prominent place among methods of implant surface modification and decontamination. Objective. To analyze data on the use of different laser types for primary dental implant surface treatment and decontamination in peri-implantitis, and to assess the pattern of micro-relief damage at various laser parameters. Materials and methods. An in vitro experimental study was conducted using scanning electron microscopy (SEM) of dental implant surfaces (Straumann, Astra Tech, Osstem, Alpha Bio) following exposure to a diode laser «LSP-IRE-Polyus» (970 nm) and a Nd:YAG laser at power settings of 1 W and 2 W. Surface damage was graded on a 0–5-point scale. Results. The 970 nm diode laser at 1 W caused no damage to any of the studied implant surfaces (0 points), comparable to the pre-experimental intact surface. At 2 W, minor micro-relief disruptions (1–2 points) were detected only in Osstem and Alpha Bio implants. In contrast, the Nd:YAG laser at 1 W caused severe surface damage to all implants (2–5 points), including complete micro-relief disruption, delamination, and visible cracks. At 2 W, the damage was catastrophic. Conclusion. The 970 nm diode laser at 1 W provides effective bactericidal action with minimal implant surface damage and can be recommended for clinical use in peri-implantitis treatment. The Nd:YAG laser at equivalent parameters is not recommended due to significant structural surface damage.

Keywords: dental implant, laser surface treatment, diode laser, Nd:YAG laser, peri-implantitis, osseointegration, scanning electron microscopy.

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Dyachkova E.Yu., Kazumova A.B., Stroganova V.D. Use of Xenogeneic Collagen Gel for the Increase of Soft Tissue Volume in the Oral Cavity. Dentistry: Theory and Practice, 2026, vol. 4, no. 1, pp. 19–25. https://doi.org/10.65324/dtp007

Gingival Immediate implantation with immediate prosthetic loading in the aesthetic zone is a complex clinical task requiring high planning precision and soft tissue augmentation. Aim to present a clinical case of successful functional and aesthetic rehabilitation of a patient with complete destruction of tooth 1.1 and an unsatisfactory restoration of tooth 2.1 using a full digital protocol (CBCT, intraoral scanning, 3D planning, navigation stent), immediate implant placement with bicortical fixation, and immediate loading with provisional restorations. A 52-year-old female patient underwent atraumatic extraction of teeth 1.1 and 2.1 following preoperative planning. Straumann Bone Level implants (3.3×16 mm) were placed using a navigation stent with bicortical fixation into the nasal cortical plate. High insertion torque (45 N·cm) enabled the immediate loading protocol. Socket augmentation and soft tissue grafting using a de-epithelialized connective tissue graft from the maxillary tuberosity were performed. One week later, a screw-retained PMMA provisional restoration was placed out of occlusion. After 4 months, definitive monolithic zirconia restorations were inserted. At the 2-year follow-up, stable bone levels, absence of recession, stable interproximal papillae, and complete patient satisfaction were observed. The presented digital protocol with immediate loading and soft tissue augmentation provides predictable long-term aesthetic and functional outcomes in the anterior region.

Keywords: immediate implantation, immediate loading, digital protocol, navigational surgery, connective tissue graft, zirconia dioxide, dentistry.

For citation
Kazumova A.B., Sudiev S.A., Dyachkova E.Yu. A Comprehensive Rehabilitation Clinical Case Using Immediate Implantation, Immediate Loading and a Full Digital Protocol (2-Year Follow-Up). Dentistry: Theory and Practice, 2026, vol. 4, no. 1, pp. 26–32. https://doi.org/10.65324/dtp008