Mariana Iordanova Dimova-Gabrovska

Prof. Dr. Mariana Iordanova Dimova-Gabrovska


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
16 April 2024 in Prosthesis
Verified
Journal Article
Open access
PDF file
Dobromira ShopovaDobromira Shopova
Dobromira Shopova
Anna MihaylovaAnna Mihaylova
Anna Mihaylova
AYAntonia Hristova Yaneva
Antonia Hristova Yaneva
DBDesislava Bakova
Desislava Bakova
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
Dental implant utilization has emerged as a contemporary strategy for rectifying dental arch anomalies. However, the effective management of potential complications is paramount. Peri-implantitis, characterized by inflammation and bone resorption around dental implants, resembles periodontitis but specifically affects implant sites. Restoring lost peri-implant tissues poses a multifaceted challenge, with bioprinting methods showing promise as a viable solution. Three-dimensional bioprinting represents a forefront advancement in tissue engineering, traditionally focusing on scaffolds, cells, and signaling pathways. This systematic review aims to aggregate and synthesize data concerning bioprinting’s application in peri-implantitis treatment. Adhering to PRISMA guidelines, the review conducted an extensive literature search across PubMed, Scopus, Google Scholar, and ScienceDirect. Importantly, the search timeframe was not limited, reflecting the scarcity of available information on the subject. Bioprinting advancements offer auspicious avenues for refining treatment modalities, prompting clinicians to explore optimal solutions for establishing ideal anatomical conditions. In essence, this systematic review underscores 3D bioprinting’s potential in peri-implantitis management, highlighting its pivotal role in contemporary dental medicine and its capacity to reshape clinical approaches toward achieving optimal outcomes.

4 May 2024 in Applied Sciences
Verified
Journal Article
Open access
PDF file
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
TUTodor Uzunov
Todor Uzunov
AGAngela Gusiyska
Angela Gusiyska
Dobromira ShopovaDobromira Shopova
Dobromira Shopova
ITIva Taneva
Iva Taneva
SRStefan Rangelov
Stefan Rangelov
Provisional fixed partial dentures represent a critical phase in dental treatment, necessitating heightened mechanical durability, particularly in comprehensive and extended treatment plans. Strengthening these structures with various reinforcing materials offers a method to enhance their resilience. Utilizing a three-point testing methodology on standardized trial specimens allows for a comparative assessment of various materials and reinforcement techniques for pre-prosthetic applications. This study aims to validate and assess the significance of integrating different reinforcing materials into standardized test bodies. The study focuses on test specimens comprising three types of unreinforced laboratory and clinical polymers for provisional constructions (n = 6)—heat-cured PMMA (Superpont C+B, Spofa Dental, Czech Republic), CAD-CAM prefabricated PMMA (DD temp MED, Dental Direkt, Germany), CAD-CAM printing resin (Temporary CB Resin, FormLabs, USA), self-polymerizing PEMA (DENTALON plus, Kulzer, Germany), light-polymerizing composite (Revotek LC, GC, Japan), and dual-polymerizing composite (TempSpan, Pentron, USA). Additionally, laboratory polymers are evaluated in groups with five types of reinforcing filaments (n = 15)—Glass Fiber (Fiber Splint One-Layer, Polydentia, Switzerland), Polyethylene thread (Ribbond Regular 4.0 mm, Ribbond Inc., USA), triple-stranded chrome-cobalt wire for splinting 015″ (Leone S.p.a., Italy), Aesthetic ligature wire 012″ (Leone S.p.a., Italy), and Glass Fiber coated with light-cured composite 8.5 × 0.2 mm (Interlig, Angelus, Brazil). Analysis of the data using Generalized Linear Models (GLMs) reveals that the experimental bodies, produced via the subtractive digital method using PMMA (DD temp MED, Dental Direkt GmbH, Germany) as the polymer and glass filaments as the reinforcement, exhibit superior mechanical properties, particularly when pre-wetted with Interlig liquid composite (Angelus, Brazil).

31 October 2024 in Applied Sciences
Verified
Journal Article
Open access
PDF file
AGAngela Gusiyska
Angela Gusiyska
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
NNNikoleta Nikolova
Nikoleta Nikolova
In contemporary dental practice, clinicians have a variety of materials and options for restoring single teeth compromised by carious or non-carious diseases. According to studies and new concepts in biomimetic restorative dentistry, indirect ceramic restorations will play an increasingly important role in daily practice. We follow up and evaluate clinically three times over a 10-year period on eighty-six indirect restorations (n = 86) of lithium disilicate e.Max Press (Ivoclar, Schaan, Liechtenstein) in 32 patients. Restorations are evaluated in the 2nd, 5th, and 10th years after the fixation. Four of the restorations studied (n = 86) had to be replaced at year 5 follow-up because of fracture (failure rate: 4.65%; Kaplan–Maier). There are no restorations with bulky, cohesive fractures. Lithium disilicate ceramic restorations provide a good treatment alternative for a 5- to 10-year period of observation, and they can be successfully applied in dental practice in 91.73% to 98.84% of cases. Advancements in digital dentistry, including the use of intraoral scanners and CAD/CAM technology, are set to further refine the precision and efficiency of indirect restorations for distal teeth, enabling quicker turnaround times and improved fit. Additionally, ongoing developments in biomaterials promise to enhance the durability and biocompatibility of these restorations, potentially leading to better long-term success rates and patient satisfaction. The goal of this clinical study was to look at how well biomimetic ceramic overlays and onlays made of lithium disilicate held onto teeth with a IV-generation adhesive system for 10 years. The study also looked at how well the edges of the teeth adjusted and how strong the teeth were overall.

2 March 2026 in European Journal of Translational Myology
Verified
Journal Article
Open access
PDF file
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
The condition of the masticatory system and, accordingly, chewing efficiency can be judged from the data obtained on the maximum bite force. It is known that the strength of the masticatory muscles, the biomechanics of the jaw, teeth and supporting bone, the reflex mechanisms, the nervous system and the mandibular joint are leading factors in determining the maximum masticatory force (1). Dellavia et al. (2) studied the electromyographic activity of the masticatory muscles in patients with fixed prosthesis on four implants (All-on-Four®) and the results obtained have a practical contribution. The hypothesis of the importance of the type of prosthetics on muscle activity is rejected. No significant differences in muscle strength were found between prosthetic patients and the control group. The authors noted a change in muscle activity only in patients with prosthetic treatments with a removable maxillary prosthesis, which they believe is due to a not very good neuromuscular coordination. The strength of the muscles involved in chewing function can also be examined by other modern digital systems that numerically record the force expressed in newtons (N) (3, 4, 5). The aim of the study - to approve a clinical work protocol and to obtain significant data on the muscle strength of the tongue, mm. masseteri and musculus orbicularis oris in patients with bruxism. The study included 35 patients with bruxism aged 35-65 years, and it was carried out at the Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria. Patients with intact dentition and without signs and symptoms of bruxism and related craniomandibular dysfunctions were used as a control group. The force in Newtons was measured using the diagnostic system "OMFT Myo-scan" (Netherlands). The object of observation is the compression of the lips; the strength of the tongue (tongue extension); the strength of mm. masseteri (contraction strength) and musculus orbicularis oris. The results obtained allowed to systematize and test in practice a protocol for conducting the study in patients with bruxism. Initial data indicate the need to conduct in-depth studies among a larger number of patients, in order to determine the reference limits of the strength in patients with bruxism and to compare the results with clinically healthy patients. In conclusion, the analysis of maximum bite force is key in the assessment of masticatory function and the state of the masticatory system. Contemporary methods significantly facilitate the diagnosis of functional disorders and contribute to the optimization of the therapeutic approach in prosthetic dentistry.

16 October 2026 in Education Sciences
Verified
Journal Article
Open access
PDF file
DKDimitar Kirov
Dimitar Kirov
ILIlia Liondev
Ilia Liondev
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
TUTodor Uzunov
Todor Uzunov
ANAleksandar Naydenov
Aleksandar Naydenov
Ivet DzhondrovaIvet Dzhondrova
Ivet Dzhondrova
Digital technologies are becoming increasingly embedded in undergraduate dental curricula, with the potential to support learning and skills development. This scoping review mapped recent evidence on the implementation and educational applications of contemporary digital technologies in undergraduate dental education. A literature search was conducted in PubMed, Scopus, and Web of Science to identify studies published between 2021 and 2025. The review was conducted in accordance with the PRISMA-ScR reporting guidelines and included studies investigating digital technologies in undergraduate dental education. A total of 24 studies met the inclusion criteria. The identified technologies included virtual reality and simulation-based learning systems, digital and 3D-printed educational models, digital assessment and feedback systems, web-based learning platforms, artificial intelligence applications, CAD/CAM technologies, and digital clinical devices. Across the included studies, the reported educational outcomes most commonly concerned practical performance, knowledge acquisition, student engagement, self-assessment, and satisfaction, with many studies focusing on short-term preclinical or learner-reported outcomes. Virtual simulation and digital assessment systems were the most extensively investigated technologies. The available evidence suggests that digital technologies may support undergraduate dental education when used as adjuncts to conventional teaching methods. However, the effectiveness of specific blended-learning models requires direct comparative evaluation. Future research should prioritize longitudinal and methodologically rigorous studies examining long-term knowledge retention, clinical competence, educational quality, and the transfer of acquired skills to professional practice.

15 July 2025 in Materials
Verified
Journal Article
Open access
PDF file
SYSpartak Yanakiev
Spartak Yanakiev
MDMariana Iordanova Dimova-Gabrovska
Mariana Iordanova Dimova-Gabrovska
The dimensional accuracy of 3D-printed edentulous jaw models is critical for successful prosthetic treatment outcomes. This study investigated the accuracy of 3D-printed working models of a completely edentulous jaw through comparative analysis of digital images generated by three laboratory scanners. A reference plaster model of a mandibular edentulous arch was digitized and used to produce ten resin models via digital light processing (DLP) technology. Each model was scanned using three different laboratory scanners: AutoScan-DS-EX, AutoScan-DS-EX Pro(H), and Optical 3D Scanner Vinyl. Digital comparison was performed using specialized software, evaluating the root mean square (RMS) deviation and percentage of values within an acceptable deviation range ±0.05 mm. All printed models showed significant deviations from the reference model (p < 0.05), with RMS values ranging from 109.2–139.7 µm and acceptable deviation percentages ranging from 29.34 to 32.31%. The mean precision RMS value was 66.37 µm. The mean intraclass correlation coefficient of 0.544 indicated moderate precision. Optical 3D Scanner Vinyl demonstrated the highest consistency, while AutoScan-DS-EX Pro(H) showed maximum variability. No statistically significant differences were found between scanners (p = 0.075). While the investigated scanners demonstrated reliable performance and sufficient accuracy, the additive manufacturing process introduced clinically significant deviations, highlighting the importance of verification between printed models and their digital originals before proceeding with clinical stages. Clinical practice should prioritize scanning systems with advanced software algorithms over those with superior hardware specifications alone.