Functional State of Mastication Muscles in Patients During Treatment of Lower Jaw Defects with Implants

2020 ◽  
Vol 12 (01) ◽  
Keyword(s):  
Functional State ◽  
Lower Jaw ◽  
Jaw Defects

FUNCTIONAL DISORDERSOF THE SALIVARY GLANDS IN PATIENTS WITH COMPRESSION AND DISLOCATION DYSFUNCTION OF THE TEMPOROMANDIBULAR JOINT AND THEIR CORRECTION

2021 ◽  
Vol 74 (7) ◽  
pp. 1695-1698
Author(s):  
Oleg V. Rybalov ◽  
Pavel I. Yatsenko ◽  
Olga Yu. Andriyanova ◽  
Elena S. Ivanytska ◽  
Maria A. Korostashova
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Functional State ◽  
Oral Fluid ◽  
Healthy Individuals ◽  
Parotid Glands ◽  
Posterior Teeth ◽  
Fluid Content ◽  
Lower Jaw ◽  
Before And After

The aim: Is to assess the functional state of parotid glands and general secretion in patients with compression, dislocation dysfunction of TMJ, to correct the revealed disorders. Materials and methods: We examined 46 patients with dysfunction of TMJ. Examination included TMJ zonography and salivary glands sonography. We studied the general and parotid secretion, transparency, viscosity, pH of the oral fluid and the secretions of the parotid glands before and after treatment. The treatment of dysfunction and hyposialosis included the repositioning of the articular heads of the lower jaw in the correct anatomical position, the use of a repositioning plate on the posterior teeth at the compression side of the articular head, bougienage of the duct of the parotid gland, administration of 10% magnesium-mineral solution of bischofite into the gland. Results: In patients with TMJ dysfunction, a significant decrease in the oral fluid content was noted before treatment. The saliva transparency was reduced, the viscosity was increased, the pH was slightly acidic. A study, which was carried out a month after completion of the course of treatment showed that all the studied parameters corresponded to those in healthy individuals. Conclusions: The study confirmed that in compression and dislocation dysfunction of TMJ, there are disorders of the functional state of the salivary glands.

Assessment of the quality of life of patients with total jaw defects

2021 ◽  
Vol 1 (38) ◽  
pp. 36-40
Author(s):  
A. A. Sletov ◽  
D. V. Mikhalchenko ◽  
A. V. Zhidovinov ◽  
A. S. Serbin ◽  
K. A. Aleshanov ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Maxillofacial Surgery ◽  
Control Group ◽  
Special Device ◽  
Postoperative Rehabilitation ◽  
Lower Jaw ◽  
Common Causes ◽  
Group Rehabilitation ◽  
Jaw Defects

Cancer of the lower jaw is one of the most common causes of the development of total defects. There are many indices and indicators to assess the quality of life of patients with this pathology, but they do not fully describe the features of their postoperative rehabilitation. The question of developing an evaluation criterion for the introduction of a special device in patients with subtotal defects of the lower jaw remains open.Material and methods. In the period from 2010 to 2021, 100 patients with subtotal defects of the lower jaw, aged 30 to 65 years old, who are being treated in the Department of Maxillofacial Surgery at the Department of Maxillofacial Surgery of the GBUZ SKKKB, were interviewed. All patients were divided into 2 groups of 50 people each. In the main rehabilitation was carried out using a special device to optimize the biomechanics of the lower jaw, in the control group, rehabilitation was carried out without one. The article presents the results of assessing the quality of life, which were carried out using a special questionnaire.Conclusions. This questionnaire makes it possible to assess the standard of living of patients using a special device at the stages of rehabilitation.

scholarly journals RESULTS OF THE ELECTROMYOGRAPHIC STUDY OF MASSETERS IN PATIENTS WITH HYPERMOBILITY OF HEADS OF THE MANDIBLE BY STANDARD TREATMENT AND USING TRANSCRANIAL ELECTRICAL STIMULATION

2018 ◽  
Vol 25 (5) ◽  
pp. 93-97
Author(s):  
A. N. Sidorenko ◽  
R. A. Sidorenko ◽  
T. V. Tarasova ◽  
T. P. Starchenko
Keyword(s):  
Temporomandibular Joint ◽  
Functional State ◽  
Standard Treatment ◽  
The State ◽  
Traditional Treatment ◽  
Lower Jaw ◽  
Physiological Dormancy ◽  
Transcranial Electrostimulation ◽  
Masseter Muscles ◽  
Bioelectric Potentials

Aim. This research was designed to study the functional state of masseters in patients with hypermobility of heads of the mandible by the traditional treatment and using transcranial electrostimulation.Materials and methods. There was conducted the examination and treatment of 80 patients with hypermobility of heads of the mandible. All patients were divided into two groups: the 1st group (n=20) received standard treatment, the second group (n=60) received traditional treatment with the inclusion of myogymnastics, massage in the temporomandibular joint area, transcranial electrostimulation, use of the apparatus of A. Sidorenko that limits the movement of the lower jaw. The control group included 10 volunteers without the pathology in the temporomandibular joint. The masseters were studied by an electromyography method before the treatment, in 1 month and in 6 months after the treatment using the computer and Miokom electromyograph. The obtained results were processed with use of the "Statistica Statsoft" program version 6.1 and "Microsoft Excel 2010".Results. The analysis of the amplitude of bioelectric potentials of the masseters made it possible to establish that when using transcranial electrostimulation and the proposed intraoral apparatus of Sidorenko AN, limiting the amplitude of mouth opening, in 6 months after the end of the treatment in patients with hypermobility of the lower jaw the increased bioelectrical activity of the masseters in the state of relative physiological dormancy disappeared, the amplitude of their contractions (93.2%) normalized.Conclusion. The results of the electromyographic study of temporal and masseter muscles made it possible to conclude that use of the transcranial electrostimulation and the intraoral apparatus of Sidorenko AN, limiting the movement of the lower jaw, has a positive effect on the functional state of the muscular apparatus in patients with hypermobility of the mandible heads. In the state of relative physiological dormancy the bioelectric potentials of the temporal and masseter muscles decrease, the amplitude of the bioelectric potentials while chewing and maximum compression of the jaws increases. 

Prx1andPrx2are upstream regulators of sonic hedgehog and control cell proliferation during mandibular arch morphogenesis

Development ◽  
2001 ◽  
Vol 128 (15) ◽  
pp. 2929-2938 ◽  
Author(s):  
Derk ten Berge ◽  
Antje Brouwer ◽  
Jeroen Korving ◽  
Mark J. Reijnen ◽  
Estia J. van Raaij ◽  
...  
Keyword(s):  
Sonic Hedgehog ◽  
Control Cell ◽  
Oral Epithelium ◽  
Mandibular Arch ◽  
Lower Jaw ◽  
Jaw Abnormalities ◽  
And Control ◽  
Jaw Defects ◽  
Insight Into ◽  
Upstream Regulators

The aristaless-related homeobox genes Prx1 and Prx2 are required for correct skeletogenesis in many structures. Mice that lack both Prx1 and Prx2 functions display reduction or absence of skeletal elements in the skull, face, limbs and vertebral column. A striking phenotype is found in the lower jaw, which shows loss of midline structures, and the presence of a single, medially located incisor. We investigated development of the mandibular arch of Prx1−/−Prx2−/− mutants to obtain insight into the molecular basis of the lower jaw abnormalities. We observed in mutant embryos a local decrease in proliferation of mandibular arch mesenchyme in a medial area. Interestingly, in the oral epithelium adjacent to this mesenchyme, sonic hedgehog (Shh) expression was strongly reduced, indicative of a function for Prx genes in indirect regulation of Shh. Wild-type embryos that were exposed to the hedgehog-pathway inhibitor, jervine, partially phenocopied the lower jaw defects of Prx1−/−Prx2−/− mutants. In addition, this treatment led to loss of the mandibular incisors. We present a model that describes how loss of Shh expression in Prx1−/−Prx2−/− mutants leads to abnormal morphogenesis of the mandibular arch.

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