Implementation of Neuromuscular Dentistry Principles in Rehabilitation of Patients With Complete Adentia

Shkarin³

et al. 2022

Self Cite

This work is a summary of results obtained through clinical, radiological, and photometric studies involving 90 people (aged 18-25) with physiological types of bite. The first stage of the study implied an assessment of the face main anatomical structures location (chin, lips and jaws) relative to the conventionally accepted and proposed lines (planes) of the teleroentgenogram and face profile images. At the second stage, the patients were divided into three groups featuring different types of dental arches – mesotrusive (n=33), protrusive (n=30) and retrusive (n=27), depending on the incisor angle of the antagonizing medial incisors. Almost all patients of Group 1 were observed to have the upper lip touching the nasal line passing through the n (nasion) and the sn (subnasale) points, the lower lip receding backwards and the occlusal relationships falling within the age norm, while the average incisor angle being 135.24±3.09°. In most patients of Group 2, the upper and lower lips were located forward from the nasal line, while the occlusal relationships matched the age norm, and the average incisor angle was 116.24±3.02°. In Group 3, the patients’ upper and lower lips were located behind the nasal line, the occlusal relationships corresponding to the age norm and the average incisor angle making up 146.24 ± 3.34°. The obtained data expand the vision of the upper and lower lip facial topography for various dental arches, and are of applied importance when it comes to assessing the aesthetic profile of soft facial tissues, as well as the data in question can serve the criteria to evaluate the rehabilitation effectiveness in patients with dental pathology in view of their individual maxillofacial features.

Section: Introductionmentioning

confidence: 99%

Specific Features of X-Ray Anatomy and Profilometry in People With Different Types of Facial Skeleton

Дмитриенко¹,

Shkarin³

et al. 2022

Self Cite

“…The normal variability of morphological features of the human craniofacial region, as well as the structure and the patterns of their development are of reasonable research and applied interest for experts in the area of clinical dentistry, orthodontics, maxillofacial surgery, neurosurgery, and ophthalmology [21,49,54]. The constitutionally meaningful features of the facial section taken as objects for in-depth study within aesthetic dentistry include: the gnathic type of the face (meso-, dolicho-, brachygnathic); the type of the facial skeleton growth (neutral, horizontal, vertical); the masticatory muscles thickness and spatial orientation; the morphological (angle) and morphometric features of the mandible (condylar width, angular width) [4,15,22,28,33,37,39]. Analysis of orthodontic treatment outcomes in patients with maxillary system issues, which is aimed at ensuring proper morphometric, functional and aesthetic balance, is performed in various aspects: the evaluation of the anatomical and functional status of the maxillofacial area, of the occlusion, and of aesthetic effect achieved [5,9,14,16,24,31,41,52,58].…”

Section: Introductionmentioning

confidence: 99%

X-Ray Cephalometric Features of Nasal and Gnathic Sections in Different Facial Skeleton Growth Types

Domenyuk¹,

Shkarin³

et al. 2022

Based on the results obtained through studying head lateral teleroentgenograms of 68 patients (aged 18−25) with a full set of permanent teeth and physiological occlusion, a method was developed, which allows exploring the angular parameters of the nasal (n-cond-sn) and gnathic (sn-cond-gn) face sections. In view of the type of the face gnathic part growth, the patients were divided into three groups: Group 1 (n=27) included patients with a neutral type of face growth and a mandibular angle of 119°−123°. Group 2 (n=22) were patients featuring a vertical type of the face gnathic part growth with a mandibular angle exceeding 123°. In patients of Group 3 (n=19), the mandibular angle was below 119° along with the horizontal type of the face gnathic part growth. Patients with physiological occlusion were found to have the nasal part angular parameters (n-cond-sn) relatively stable at different types of jaw growth: neutral type, 29.85±0.22°; vertical type, 30.01±0.22°; horizontal type, 29.96±0.29°, respectively. The angular parameters of the face gnathic part (sn-cond-gn) are variable and were identified based on the type of face growth, whereas the dimensional parameters in case of the vertical growth type (33.02±0.26°) exceed similar indices in people who featured the neutral (30.04±0.28°) and horizontal (26.92±0.29°) growth types. The angular parameters obtained for the nasal (n-cond-sn) and gnathic (sn-cond-gn) parts of the face can be employed as stable reference points when assessing the jaw growth types in patients with physiological occlusion, detecting facial features with maxillofacial anomalies and deformities (both congenital and acquired), and serve as a criterion pointing at the effectiveness of prosthetic and orthodontic treatment.

“…5 | due to its high prevalence causes a significant risk of developing multiple organ pathology. There is clinical evidence pointing at the fact that an increase in the UCTD signs falls on the "critical" period of the child's physical evolution (age of [11][12][13][14][15] due to the active growth phase, whereas the "immaturity" of connective tissue leads to morphological and functional issues affecting organs and body systems, while contributing to the development of secondary (associated) pathological conditions, including those involving the dental system [7,24,37].…”

Section: Introductionmentioning

confidence: 99%

“…The current stage of progress in certain sections of clinical dentistry reveals a significant increase in the role of anthropometric, morphological, radiological, laboratory diagnostic and functional research methods when it comes to solving the most urgent issues. In periodontology, in particular, a combined use of clinical and paraclinical research methods allows objective diagnostics and developing a strategy for comprehensive treatment of impairments affecting periodontal tissue [6,[15][16][17]19,25,[31][32][33][34][41][42][43]45].…”

Section: Introductionmentioning

confidence: 99%

Periodontal Tissue Morphology in Children With Abnormal Occlusion and Connective Tissue Dysplasia Syndrome

Domenyuk¹,

Дмитриенко³

et al. 2022

Self Cite

The study involved an analysis of the data gum biopsies obtained through light microscopy and polarization microscopy in order to identify pathomorphological features and the collagen Type I & Type III ratio in 56 children with occlusion issues, periodontal diseases and various undifferentiated connective tissue dysplasia (UCTD). 32 healthy children with intact periodontium served as a control group. For the histological examination of gum biopsies, the respective sections were stained with hematoxylin and eosin, while Picro-Sirius Red Stain Kit reagents were used to assess the Type I and Type III collagen distribution in the gum connective tissue. The image processing was performed in the ImageJ 1.47 software, while when analyzing the color histograms, the ratio of the red pixels (Type I collagen) and the green pixels (Type III collagen) was identified. The Type I/III collagen ratio (1.41±0.09) in children with chronic catarrhal gingivitis, occlusion issues and a “prominent” degree of UCTD was found to be significantly lower (p≤0.05) the similar ratio observed in patients with clinically healthy periodontium (2.01±0.09), as well as in patients with “mild” and “moderate” UCTD (1.63 ± 0.17) with homogeneous clinical and morphological dental manifestations. The effectiveness of the developed comprehensive dental treatment program for periodontal issues in children with abnormal occlusion associated with UCTD, including conservative anti-inflammatory treatment, pharmacological correction and orthodontic treatment, is justified by an increase in the amount of mature Type I collagen, a decrease in the developing immature Type III collagen, and inflammation in the periodontal tissues. A sufficient degree of maturity and differentiation of connective tissue was also achieved.