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2011-present, Department of Maxillofacial Surgery, Medical University of Lodz, head 2008-2011, Clinical Department of Maxillofacial Surgery, Medical University of Lodz, head 2006-2008, Department of Craniomaxillofacial Surgery, Medical University of Lodz, associate professor 1994-2006, Department of Maxillofacial Surgery, Medical University of Lodz, assistant professor 1993-1994, postgraduate internship, Institute of Dentistry at Medical University of Lodz, intern trainee The first who introduced ultrahigh molecular weight polyethylene to orbital reconstruction. It was performed in personalized CAD/CAM custom techniques: (2014) Computer-aided orbital wall defects treatment by individual design ultrahigh molecular weight polyethylene implants. doi:10.1016/j.jcms.2013.05.015. He invented new types of plates for mandible condyle osteosynthesis, headless compressive low profile screws for ORIF mandibular heads as titanium (Ti6Al7Nb) as resorbable magnesium (MgYREZr), and developed a classification of mandibular condylar fractures that preserves the actual representation of high condylar neck fractures: doi:10.1016/j.jcms.2013.11.003, doi:10.1007/s00784-019-02842-y, doi:10.1016/j.bjoms.2017.04.013, doi:10.1007/s00784-018-2459-1.
Project Goal: PhD thesis for Bartosz Bielecki-Kowalski
Current Stage: during realization
Project Goal: Inkubatora Innowacyjności
Current Stage: completed
Project Goal: Diamentowy Grant
Current Stage: completed
Project Goal: Department statut activity
Current Stage: during realization
Project Goal: PhD thesis for Marcin Elgalal
Current Stage: completed
Project Goal: Manager
Current Stage: completed
Project Goal: Manager
Current Stage: completed
Project Goal: performer
Current Stage: completed
Project Goal: Manager
Current Stage: completed
Project Goal: performer
Current Stage: completed
Project Goal: Manager
Current Stage: completed
Project Goal: PhD thesis for Marcin Kozakiewicz
Current Stage: completed
Venous lake (VL) is a common lesion resulting from the enlargement of thin-walled veins surrounded by a thick wall of fibrous tissue. Photocoagulation is becoming one of the basic methods for treating small vascular lesions. The aim of this study was an application of texture analysis (TA) and fractal dimension analysis (FDA) to evaluate VL treatment. Twenty-three VLs were included in the study. We used a 980 nm diode laser, 6 W, 100 ms pulse mode with a 50% duty cycle. The total dose of energy was in a range from 80 J to 600 J. We used the difference of intensity algorithm for FDA and microcontrast and a co-occurrence matrix for TA. A complete therapeutic effect was achieved in 83%, and in 9%, scar formation was observed after three months. No healing was observed in 4%, and there was partial healing in 4%. No differences in FD were observed between the lesions after three months and the healthy mucosa. The fractal dimension and microcontrast of a vascular lesion are mutually coupled. FDA and TA is a useful and objective method of assessing treatment effects for venous lakes. The non-contact mode of the 980 nm diode laser is an effective and safe method for treating a VL.
Mateusz Trafalski; Marcin Kozakiewicz; Kamil Jurczyszyn. Application of Fractal Dimension and Texture Analysis to Evaluate the Effectiveness of Treatment of a Venous Lake in the Oral Mucosa Using a 980 nm Diode Laser—A Preliminary Study. Materials 2021, 14, 4140 .
AMA StyleMateusz Trafalski, Marcin Kozakiewicz, Kamil Jurczyszyn. Application of Fractal Dimension and Texture Analysis to Evaluate the Effectiveness of Treatment of a Venous Lake in the Oral Mucosa Using a 980 nm Diode Laser—A Preliminary Study. Materials. 2021; 14 (15):4140.
Chicago/Turabian StyleMateusz Trafalski; Marcin Kozakiewicz; Kamil Jurczyszyn. 2021. "Application of Fractal Dimension and Texture Analysis to Evaluate the Effectiveness of Treatment of a Venous Lake in the Oral Mucosa Using a 980 nm Diode Laser—A Preliminary Study." Materials 14, no. 15: 4140.
Mechanical properties of orthodontic wires can have a very significant impact both on the resistance of the entire appliance to the oral cavity conditions and directly on the effectiveness of the therapy. Striving to achieve repeatability of mechanical characteristics of orthodontic wires of a given type should be an obligatory condition in their production. To achieve it, these components should be thoroughly analyzed using various mechanical tests. Twenty-four steel and nickel-titanium orthodontic wires from four different manufacturers were examined. Each wire was subjected to fractal dimension analysis and texture analysis. The two sides of each wire were compared against each other, as well as in terms of variation in the surface area for each wire type made by different manufacturers. Most wires showed significant variation in fractal dimension and texture, both when comparing two sides of the same wire and between individual wires of a given type made by a single manufacturer. When conducting research and clinically using orthodontic wires made of Ni-Ti alloys and stainless steel, it should be assumed that the surface of orthodontic wires shows a significant degree of variation, and wires of the same type from the same manufacturer may differ significantly in this respect.
Michał Sarul; Marcin Kozakiewicz; Kamil Jurczyszyn. Surface Evaluation of Orthodontic Wires Using Texture and Fractal Dimension Analysis. Materials 2021, 14, 3688 .
AMA StyleMichał Sarul, Marcin Kozakiewicz, Kamil Jurczyszyn. Surface Evaluation of Orthodontic Wires Using Texture and Fractal Dimension Analysis. Materials. 2021; 14 (13):3688.
Chicago/Turabian StyleMichał Sarul; Marcin Kozakiewicz; Kamil Jurczyszyn. 2021. "Surface Evaluation of Orthodontic Wires Using Texture and Fractal Dimension Analysis." Materials 14, no. 13: 3688.
Orthodontists correct dental malocclusion, but major facial skeleton deformations (skeletal malocclusion) are often subject to surgical correction. Several speech pathologies are associated with both of the occlusal anomalies mentioned above. The majority of articulation disorders and primary functions cannot be improved without skeletal correction. This study aimed to investigate the outcome of the multimodal and logopaedics treatment of Polish adults affected by skeletal malocclusion and speech-language pathology. A total of 37 adults affected by skeletal Class II and III malocclusion were included, along with the relationship between the malocclusion and speech deficiency (20 phonemes tested) in the subjects before and after surgical correction. The impact of surgery on pronunciation improvement and types of Polish phonemes most often misarticulated by Polish adults were also examined. Patients underwent combined treatment and received a full speech pathology examination. The treatment improved speech (p< 0.05), but the study did not prove that a specific surgery type was associated with pronunciation improvement. Some patients were provided with speech therapy during childhood, yet most had some minor difficulties with lip and tongue movements. Palatal, alveolar (p< 0.05), fricatives (p< 0.05), and labiodental consonant pronunciation (p< 0.05) improved. The surgical correction of malocclusion leads to better articulation of Polish consonants in adults and improves some primary functions.
Anna Lichnowska; Marcin Kozakiewicz. The Logopedic Evaluation of Adult Patients after Orthognathic Surgery. Applied Sciences 2021, 11, 5732 .
AMA StyleAnna Lichnowska, Marcin Kozakiewicz. The Logopedic Evaluation of Adult Patients after Orthognathic Surgery. Applied Sciences. 2021; 11 (12):5732.
Chicago/Turabian StyleAnna Lichnowska; Marcin Kozakiewicz. 2021. "The Logopedic Evaluation of Adult Patients after Orthognathic Surgery." Applied Sciences 11, no. 12: 5732.
Functional and esthetic final reconstruction of the cleft maxilla is still challenging. Current reconstructive and augmentation techniques do not provide sufficient bone and soft tissue support for the predictable rehabilitation with dental implants due to presence of maxillary bone critical size defects and soft tissue deficiency, scaring and poor vascularity. In this article the protocol for the use of 3D virtual surgical planning and microvascular tissue transfers for the reconstruction and rehabilitation of cleft maxilla is presented. Twenty-five patients (8 male/17 female) aged 14–41 years old with cleft-associated critical size defects were treated by 3D-virtual planned microvascular tissue transfers taken either from fibula, iliac crest, radial forearm, or medial femoral condyle. Follow-up lasted 1–5 years. No significant bone resorption (p > 0.005) nor volume loss of the graft was observed (p = 0.645). Patients received final permanent prosthetic reconstruction of the anterior maxilla based on 2–5 dental implants, depending on the defect severity. This is the first study presenting the use of virtual planning in the final restoration of the cleft maxilla with microvascular tissue transfers and dental implants. Presented protocol provide highly functional and aesthetic results.
Krzysztof Dowgierd; Rafał Pokrowiecki; Maciej Borowiec; Zuzanna Sokolowska; Martyna Dowgierd; Jan Wos; Marcin Kozakiewicz; Łukasz Krakowczyk. Protocol and Evaluation of 3D-Planned Microsurgical and Dental Implant Reconstruction of Maxillary Cleft Critical Size Defects in Adolescents and Young Adults. Journal of Clinical Medicine 2021, 10, 2267 .
AMA StyleKrzysztof Dowgierd, Rafał Pokrowiecki, Maciej Borowiec, Zuzanna Sokolowska, Martyna Dowgierd, Jan Wos, Marcin Kozakiewicz, Łukasz Krakowczyk. Protocol and Evaluation of 3D-Planned Microsurgical and Dental Implant Reconstruction of Maxillary Cleft Critical Size Defects in Adolescents and Young Adults. Journal of Clinical Medicine. 2021; 10 (11):2267.
Chicago/Turabian StyleKrzysztof Dowgierd; Rafał Pokrowiecki; Maciej Borowiec; Zuzanna Sokolowska; Martyna Dowgierd; Jan Wos; Marcin Kozakiewicz; Łukasz Krakowczyk. 2021. "Protocol and Evaluation of 3D-Planned Microsurgical and Dental Implant Reconstruction of Maxillary Cleft Critical Size Defects in Adolescents and Young Adults." Journal of Clinical Medicine 10, no. 11: 2267.
Treating oncologic patients remains a challenge for surgeons aiming to provide patients with safe margins of resection while maintaining the highest possible quality of life. The latter, in the case of malignancies, requires using sophisticated methods of reconstruction. Thus, we present a case of a 75-year-old patient treated in our department with a rare neoplasm in the region of the temporomandibular joint—a myxofibrosarcoma that was mimicking an inflammatory lesion. The patient underwent two surgeries—firstly alloplasty of the TMJ due to the suspicion of an inflammatory lesion, lately extended to the resection of glenoid fossa and subtemporal fossa contents when the mandible was reconstructed using UHMW-PE (ultra-high molecular weight polyethylene). The patient was also referred for adjuvant radiotherapy and has remained disease-free for over 96 months with very good aesthetics and function of the mandible. The presented case highlights not only the need for increased oncologic awareness but also the possible use of UHMW-PE as a reconstruction material in the broad resection of the maxillofacial region.
Dawid Zagacki; Krzysztof Sztychny; Marta Tyndorf; Robert Bibik; Dominik Sygut; Marcin Kozakiewicz. Myxofibrosarcoma Mimicking Inflammatory Lesion of Temporomandibular Joint—Case Presentation. Applied Sciences 2021, 11, 4373 .
AMA StyleDawid Zagacki, Krzysztof Sztychny, Marta Tyndorf, Robert Bibik, Dominik Sygut, Marcin Kozakiewicz. Myxofibrosarcoma Mimicking Inflammatory Lesion of Temporomandibular Joint—Case Presentation. Applied Sciences. 2021; 11 (10):4373.
Chicago/Turabian StyleDawid Zagacki; Krzysztof Sztychny; Marta Tyndorf; Robert Bibik; Dominik Sygut; Marcin Kozakiewicz. 2021. "Myxofibrosarcoma Mimicking Inflammatory Lesion of Temporomandibular Joint—Case Presentation." Applied Sciences 11, no. 10: 4373.
Open reduction and internal fixation (ORIF) is becoming increasingly common in treatment of the condylar process, including mandible head fractures. This approach significantly improves the results in terms of anatomical reduction of bone fragments, and shortens the treatment time, allowing for early functional recovery. The success of ORIF is largely determined by the stability of the osteosynthesis. The stabilization effect depends on the screw type and length of the plate used, in addition to the diameter and length of the screws used. The aim of this study was to determine the largest possible screw length that can be used in ORIF of the mandibular condyle considering the variable bone thickness. A total of 500 condyles were examined using computer tomography (CT)-based 3D models in Caucasians. For all models, three measurements were made in the frontal projection in places typical for the stabilization of osteosynthesis plates in the fractures of the condylar process: the base, the top, and the sigmoid notch. In addition, one measurement of the mandible head was made in the place of the greatest width. The results showed that 8 mm screws should be used in the region of the condylar base as the longest anatomically justified screw, whereas in the area of a sigmoid notch only 1.5–2 mm screws should be used. Measurements in the area of the neck top revealed statistically significant differences in the measurements between the sex of patients, with average differences below 1 mm (p < 0.05). In this area, the maximal length of the screw was found to be 10 mm. In mandibular head fractures, the use of long screws is extremely important due to the desired effect of fragment compression. Statistically significant differences were found in the measurement results between women and men. The maximal screw length for bicortical fixation was found to be 22 mm in men and 20 mm in women. In post-traumatic patients, the ability to obtain a clear measurement is often limited by a deformed anatomy. Taking into account the fact that the fracture stability is influenced by both the plate length and the length of the fixation screws, an assessment of the standard measurement values in a cohort group will improve the quality of the surgical fixations of the fractures.
Bartosz Bielecki-Kowalski; Marcin Kozakiewicz. Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data. Applied Sciences 2021, 11, 3371 .
AMA StyleBartosz Bielecki-Kowalski, Marcin Kozakiewicz. Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data. Applied Sciences. 2021; 11 (8):3371.
Chicago/Turabian StyleBartosz Bielecki-Kowalski; Marcin Kozakiewicz. 2021. "Choice of Screws for Fixation of Mandibular Condyle Fractures Guided by Anthropometric Data." Applied Sciences 11, no. 8: 3371.
There is no publication concerning tongue-tie (TT) in adults, surprisingly. It is generally known that TT is mainly diagnosed in newborns and infants. It seems unlikely that TT does not cause functional disorders in adults, especially considering that TT has been present in organism since childhood. Thus, there is insufficient information about the influence of TT on adults′ speech production. The purpose of this study was the functional evaluation of lingual frenotomy on tongue mobility and speech in the adult Polish population. Methods: Methods were based on visual observation and examination of the oral cavity accompanied by visual and auditory examination of articulation. Χ2 test, Kruskal–Wallis, analysis of variance (ANOVA), and Student’s t-test were used for statistical analyses. Conclusions: Tongue-tie is a serious condition in adults. Implementing surgical procedures to treat it improves the tongue′s mobility in every direction and improves speech clarity. The frenotomy should be implemented in patients suffering from malocclusion because the equilibrium of all the face muscles and skeleton is often disturbed and may lead to unstable functional effects of orthodontic and orthognathic treatment.
Anna Lichnowska; Marcin Kozakiewicz. The Effectiveness of Frenotomy on Speech in Adults. Applied Sciences 2021, 11, 2727 .
AMA StyleAnna Lichnowska, Marcin Kozakiewicz. The Effectiveness of Frenotomy on Speech in Adults. Applied Sciences. 2021; 11 (6):2727.
Chicago/Turabian StyleAnna Lichnowska; Marcin Kozakiewicz. 2021. "The Effectiveness of Frenotomy on Speech in Adults." Applied Sciences 11, no. 6: 2727.
Modern treatment in the field of head and neck surgery aims for the least invasive therapy and places great emphasis on restorative treatment, especially in the case of injury and deformation corrective surgery. More and more often, surgeons use CAD/CAM (Computer-Aided Design and Computer-Aided Manufacturing) tools in their daily practice in the form of models, templates, and computer simulations of planning. These tools are based on DICOM (Digital Imaging and Communications in Medicine) files derived from computed tomography. They can be obtained from both fan-beam (FBCT) and cone-beam tomography (CBCT) acquisitions, which are subsequently segmented in order to transform them into a 1-bit 3D model, which is the basis for further CAD processes. Aim: Evaluation of differences in the dimensions of mandible condyle models in fan- versus cone-beam computer tomography for surgical treatment purposes. Methods: 499 healthy condyles were examined in CT-based 3D models of Caucasians aged 8–88 years old. Datasets were obtained from 66 CBCT and 184 FBCT axial image series (in each case, imaging both mandible condyles resulted in the acquisition of 132 condyles from CBCT and 368 condyles from FBCT) and were transformed into three-dimensional models by digital segmentation. Eleven different measurements were performed to obtain information whether there were any differences between FBCT and CBCT models of the same anatomical region. Results: 7 of 11 dimensions were significantly higher in FBCT versus lower in CBCT (p < 0.05).
Bartosz Bielecki-Kowalski; Marcin Kozakiewicz. Assessment of Differences in the Dimensions of Mandible Condyle Models in Fan- versus Cone-Beam Computer Tomography Acquisition. Materials 2021, 14, 1388 .
AMA StyleBartosz Bielecki-Kowalski, Marcin Kozakiewicz. Assessment of Differences in the Dimensions of Mandible Condyle Models in Fan- versus Cone-Beam Computer Tomography Acquisition. Materials. 2021; 14 (6):1388.
Chicago/Turabian StyleBartosz Bielecki-Kowalski; Marcin Kozakiewicz. 2021. "Assessment of Differences in the Dimensions of Mandible Condyle Models in Fan- versus Cone-Beam Computer Tomography Acquisition." Materials 14, no. 6: 1388.