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Papers by Natallia Zhuravleva

Research paper thumbnail of Clinical implications of the ossified pterygospinous ligament

International Journal of Anatomical Variations, 2016

The aim of the present study was to assess neurological symptoms in patients with ossified pteryg... more The aim of the present study was to assess neurological symptoms in patients with ossified pterygospinous ligament detected in vivo using the cone beam computed tomography (CBCT). Three CBCT scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on the Planmeca ProMax® 3D Max unit using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT sections were analyzed. One case of entrapment of the lingual nerve by the ossified pterygospinous ligament was observed. In two other cases ossification of the pterygospinous ligament was not accompanied by any neurological symptoms. Calcification of the pterygospinous ligament can be detected in vivo using CBCT. Sometimes it may affect the lingual nerve producing symptoms of neuralgia. When combined with a broad lateral plate of the pterygoid process, it may restrict the access to structures located in the infratemporal fossa.

Research paper thumbnail of Bifid mandibular canal

Stomatologiya, 2018

Удвоение канала нижней челюсти-НЧ (нижнечелюстного канала)-вариант его анатомического строения. О... more Удвоение канала нижней челюсти-НЧ (нижнечелюстного канала)-вариант его анатомического строения. О нем имеется упоминание в национальном руководстве по хирургической стоматологии и челюстно-лицевой хирургии [1], а также в ряде научных статей, авторы которых обнаружили дополнительный канал(ы) на анатомических препаратах [2, 3]. Частота выявления нескольких каналов НЧ при анализе ортопантомограмм (ОПМГ)-0,08-0,95% [4]. Конусно-лучевая компьютерная томография (КЛКТ) выявляет наличие раздвоенного канала в 15,6-64,6% случаев [5-7]. В соответствии с классификацией M. Naitoh и соавт. [5] различают 4 типа канала (рис. 1). Цель исследования-описать варианты топографии каналов НЧ, выявляемые с помощью КЛКТ. Материал и методы Необычные варианты хода канала НЧ были выявлены как случайные находки при исследовании на КЛКТ челюстно-лицевой области пациентов, которые обращались в медицинские центры Минска в период 2015-2017 гг. за стоматологической помощью. Авторы исследования не ставили перед собой задачу определить частоту встречаемости удвоения канала НЧ в популяции. Рентгенологическое исследование проводилось на аппарате Galileos GAX5 («Sirona Dental Systems, Bensheim», Germany). Анализ полученных данных проводился по традиционной методике, предусматривающей по

Research paper thumbnail of Mandibular Canal Course Using Cone Beam Computer Tomography

Bulletin of Problems Biology and Medicine, 2018

Research paper thumbnail of Сross-Sectional Anatomic Study of Direct Positional Relationships Between Mandibular Canal and Roots of Posterior Teeth Using Cone Beam Computed Tomography

Journal of Oral Research, 2018

Objectives: To establish the frequency of the various types of direct contacts of the root apices... more Objectives: To establish the frequency of the various types of direct contacts of the root apices with the wall of the mandibular canal and to determine gender differences in number of such contacts in a selected Belarusian population using cone beam computed tomography. Methodology: One hundred and two cone beam computed tomography scans were analyzed to classify the types of contact and three-dimensional relationship between the mandibular teeth and the mandibular canal. Results: The direct contact between the teeth and the mandibular canal was observed in 63.7% of patients. Overall 300 roots of 189 teeth were in direct contact with the mandibular canal: 9.3% were second premolars, 14.7% were first molars, 33.8% were second molars and 50.0% were third molars. There were no statistically significant differences in the number of teeth with direct contact with the mandibular canal between males and females. Conclusion: The direct contact of the root apices with the mandibular canal was most often found in the second and third molars. The root apices of the third molars had the greatest variability of location relatively to the mandibular canal.

Research paper thumbnail of Study of the mandibular incisive canal anatomy using cone beam computed tomography

Surgical and Radiologic Anatomy, 2016

PurposeThe aim of this study was to identify the range of individual variability in dimensions an... more PurposeThe aim of this study was to identify the range of individual variability in dimensions and topography of the mandibular incisive canal (MIC) in vivo.MethodsOne hundred cone beam computed tomography (CBCT) scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on Galileos GAX5 using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT images were analyzed.ResultsThe MIC was visualized in 92% of CBCT images. It was detected in the first premolar root region in 93% of cases, and only in 21% of cases it reached the central incisors root area. The MIC started prior to the mental foramen opening with formation of the anterior mental loop in 48% of cases. The MIC started at the level of the mental foramen or close to it in 52% of cases. The degree of MIC visibility and its internal vertical diameter decreases when it comes closer to the midline of the mandible. The distance from the roots of teeth to the upper wall of MIC increases in the mesial direction, while the position of MIC in relation to the base of the mandible remains virtually unchanged.ConclusionsThe MIC can appear in a different length and can reach the level of the root of the central mandibular incisor. Individual topography of MIC should be determined during the preoperative radiological examination and surgical procedures in the anterior region of the mandible.

Research paper thumbnail of Topography of the inferior alveolar nerve in human embryos and fetuses. An histomorphological study

Journal of Oral Research, 2017

The aim of this study is to establish the position of the inferior alveolar nerve in relation to ... more The aim of this study is to establish the position of the inferior alveolar nerve in relation to the Meckel's cartilage, the anlage of the mandibular body and primordia of the teeth, and also to trace the change in nerve trunk structure in the human prenatal ontogenesis. Serial sections (20µm) from thirty-two 6-12 weeks-old entire human embryos and serial sections (10µm) of six mandibles of 13-20 weeks-old human fetuses without developmental abnormalities were studied. Histological sections were impregnated with silver nitrate according to Bilshovsky-Buke and stained with hematoxylin and eosin. During embryonic development, the number of branches of the inferior alveolar nerve increases and its fascicular structure changes. In conclusion, the architecture of intraosseous canals in the body of the mandible, as well as the location of the foramina, is predetermined by the course and pattern of the vessel/nerve branching in the mandibular arch, even before the formation of bony trabeculae. Particularly, the formation of the incisive canal of the mandible can be explained by the presence of the incisive nerve as the extension of the inferior alveolar nerve. It has also been established that Meckel's cartilage does not participate in mandibular canal morphogenesis.

Research paper thumbnail of Imaging of accessory buccal foramina using cone-beam computed tomography: case reports

European journal of anatomy, 2017

Rare variations of several additional foramina of the mandible and their combinations were visual... more Rare variations of several additional foramina of the mandible and their combinations were visualized in the dry mandible and in vivo using Cone-Beam Computed Tomography images. One accessory mental foramen (AMF) was located at the root apex of the right second premolar upward from the mental foramen (MF), almost in the middle between the base of the mandible and the alveolar ridge. The second AMF was detected between the first and second left premolars downward from the MF. Two separate foramina in the buccal cortical plate of each half of the dry mandible located along a horizontal line were classified as the mental and mandibular incisive canal foramina. In all presented cases other additional foramina were identified. They were located on the buccal and/or lingual surface of the mandibular body.

Research paper thumbnail of Clinical implications of the ossified pterygospinous ligament

International Journal of Anatomical Variations, 2016

The aim of the present study was to assess neurological symptoms in patients with ossified pteryg... more The aim of the present study was to assess neurological symptoms in patients with ossified pterygospinous ligament detected in vivo using the cone beam computed tomography (CBCT). Three CBCT scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on the Planmeca ProMax® 3D Max unit using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT sections were analyzed. One case of entrapment of the lingual nerve by the ossified pterygospinous ligament was observed. In two other cases ossification of the pterygospinous ligament was not accompanied by any neurological symptoms. Calcification of the pterygospinous ligament can be detected in vivo using CBCT. Sometimes it may affect the lingual nerve producing symptoms of neuralgia. When combined with a broad lateral plate of the pterygoid process, it may restrict the access to structures located in the infratemporal fossa.

Research paper thumbnail of Bifid mandibular canal

Stomatologiya, 2018

Удвоение канала нижней челюсти-НЧ (нижнечелюстного канала)-вариант его анатомического строения. О... more Удвоение канала нижней челюсти-НЧ (нижнечелюстного канала)-вариант его анатомического строения. О нем имеется упоминание в национальном руководстве по хирургической стоматологии и челюстно-лицевой хирургии [1], а также в ряде научных статей, авторы которых обнаружили дополнительный канал(ы) на анатомических препаратах [2, 3]. Частота выявления нескольких каналов НЧ при анализе ортопантомограмм (ОПМГ)-0,08-0,95% [4]. Конусно-лучевая компьютерная томография (КЛКТ) выявляет наличие раздвоенного канала в 15,6-64,6% случаев [5-7]. В соответствии с классификацией M. Naitoh и соавт. [5] различают 4 типа канала (рис. 1). Цель исследования-описать варианты топографии каналов НЧ, выявляемые с помощью КЛКТ. Материал и методы Необычные варианты хода канала НЧ были выявлены как случайные находки при исследовании на КЛКТ челюстно-лицевой области пациентов, которые обращались в медицинские центры Минска в период 2015-2017 гг. за стоматологической помощью. Авторы исследования не ставили перед собой задачу определить частоту встречаемости удвоения канала НЧ в популяции. Рентгенологическое исследование проводилось на аппарате Galileos GAX5 («Sirona Dental Systems, Bensheim», Germany). Анализ полученных данных проводился по традиционной методике, предусматривающей по

Research paper thumbnail of Mandibular Canal Course Using Cone Beam Computer Tomography

Bulletin of Problems Biology and Medicine, 2018

Research paper thumbnail of Сross-Sectional Anatomic Study of Direct Positional Relationships Between Mandibular Canal and Roots of Posterior Teeth Using Cone Beam Computed Tomography

Journal of Oral Research, 2018

Objectives: To establish the frequency of the various types of direct contacts of the root apices... more Objectives: To establish the frequency of the various types of direct contacts of the root apices with the wall of the mandibular canal and to determine gender differences in number of such contacts in a selected Belarusian population using cone beam computed tomography. Methodology: One hundred and two cone beam computed tomography scans were analyzed to classify the types of contact and three-dimensional relationship between the mandibular teeth and the mandibular canal. Results: The direct contact between the teeth and the mandibular canal was observed in 63.7% of patients. Overall 300 roots of 189 teeth were in direct contact with the mandibular canal: 9.3% were second premolars, 14.7% were first molars, 33.8% were second molars and 50.0% were third molars. There were no statistically significant differences in the number of teeth with direct contact with the mandibular canal between males and females. Conclusion: The direct contact of the root apices with the mandibular canal was most often found in the second and third molars. The root apices of the third molars had the greatest variability of location relatively to the mandibular canal.

Research paper thumbnail of Study of the mandibular incisive canal anatomy using cone beam computed tomography

Surgical and Radiologic Anatomy, 2016

PurposeThe aim of this study was to identify the range of individual variability in dimensions an... more PurposeThe aim of this study was to identify the range of individual variability in dimensions and topography of the mandibular incisive canal (MIC) in vivo.MethodsOne hundred cone beam computed tomography (CBCT) scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on Galileos GAX5 using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT images were analyzed.ResultsThe MIC was visualized in 92% of CBCT images. It was detected in the first premolar root region in 93% of cases, and only in 21% of cases it reached the central incisors root area. The MIC started prior to the mental foramen opening with formation of the anterior mental loop in 48% of cases. The MIC started at the level of the mental foramen or close to it in 52% of cases. The degree of MIC visibility and its internal vertical diameter decreases when it comes closer to the midline of the mandible. The distance from the roots of teeth to the upper wall of MIC increases in the mesial direction, while the position of MIC in relation to the base of the mandible remains virtually unchanged.ConclusionsThe MIC can appear in a different length and can reach the level of the root of the central mandibular incisor. Individual topography of MIC should be determined during the preoperative radiological examination and surgical procedures in the anterior region of the mandible.

Research paper thumbnail of Topography of the inferior alveolar nerve in human embryos and fetuses. An histomorphological study

Journal of Oral Research, 2017

The aim of this study is to establish the position of the inferior alveolar nerve in relation to ... more The aim of this study is to establish the position of the inferior alveolar nerve in relation to the Meckel's cartilage, the anlage of the mandibular body and primordia of the teeth, and also to trace the change in nerve trunk structure in the human prenatal ontogenesis. Serial sections (20µm) from thirty-two 6-12 weeks-old entire human embryos and serial sections (10µm) of six mandibles of 13-20 weeks-old human fetuses without developmental abnormalities were studied. Histological sections were impregnated with silver nitrate according to Bilshovsky-Buke and stained with hematoxylin and eosin. During embryonic development, the number of branches of the inferior alveolar nerve increases and its fascicular structure changes. In conclusion, the architecture of intraosseous canals in the body of the mandible, as well as the location of the foramina, is predetermined by the course and pattern of the vessel/nerve branching in the mandibular arch, even before the formation of bony trabeculae. Particularly, the formation of the incisive canal of the mandible can be explained by the presence of the incisive nerve as the extension of the inferior alveolar nerve. It has also been established that Meckel's cartilage does not participate in mandibular canal morphogenesis.

Research paper thumbnail of Imaging of accessory buccal foramina using cone-beam computed tomography: case reports

European journal of anatomy, 2017

Rare variations of several additional foramina of the mandible and their combinations were visual... more Rare variations of several additional foramina of the mandible and their combinations were visualized in the dry mandible and in vivo using Cone-Beam Computed Tomography images. One accessory mental foramen (AMF) was located at the root apex of the right second premolar upward from the mental foramen (MF), almost in the middle between the base of the mandible and the alveolar ridge. The second AMF was detected between the first and second left premolars downward from the MF. Two separate foramina in the buccal cortical plate of each half of the dry mandible located along a horizontal line were classified as the mental and mandibular incisive canal foramina. In all presented cases other additional foramina were identified. They were located on the buccal and/or lingual surface of the mandibular body.