[Experimental design of the lower jaw functional loading for implant-supported restoration in unfavorable clinical conditions].

The Aim Of The Study: Was to create a finite element design to evaluate the masticatory stress distribution on the full fixed prosthesis with three supporting implants and the mandibular bone in the conditions most closely resembling the real ones.

Materials And Methods: The geometric design was created with the results of a CBCT of a real patient. The transfer of the DICOM into STL format was carried out in the Mimics Medical 21 program, in which the author's splinting device for the implant was designed.

[Study of the effect of the occlusal surface of a natural tooth and fixed partial dentures supported by dental implants on the stress distribution by finite element analysis].

Objective: To study the effect of the occlusal surface of a natural tooth, cement-retained and screw-retained fixed partial dentures supported by dental implants and the coefficient of friction on the stress distribution in the peri-implant bone at maximum and minimum principal stresses.

Material And Methods: Study of maximum and minimum principal stresses in models with natural teeth and artificial crowns supported by dental implants, taking into account the coefficient of friction using the finite element analysis.

Results: In models represented by fixed partial dentures supported by dental implants and a natural tooth, the maximum tensile stresses arise in the cortical bone in the cervical region of the artificial crown, and the maximum compressive stresses occur both in the cortical layer in the cervical region of the artificial crown and in the cervical region of the tooth.

Factors associated with age of first sex among women screened for an observational contraceptive vaginal ring study in Kisumu, Kenya, 2014.

Sex at an early age can have later life negative health outcomes. Insights on early sexual activity may help in the development of future health-promotion products and interventions related to pregnancy and sexually transmitted infections (STIs) prevention. Among Kenyan women participating in a contraceptive vaginal ring study, we determined: (1) the proportion with first sex at ≤15 years (early sex) and (2) factors associated with early sex.

[Influence of morphological parameters of natural teeth and fixed partial dentures supported by dental implants on the time of occlusion].

Objective: To study the effect of morphological parameters of natural teeth and fixed partial dentures supported by dental implants on the time of occlusion.

Material And Methods: The study of the morphological parameters of the first right upper and lower molars of natural teeth and fixed partial dentures supported by dental implants in the positions of the first molars of the upper and lower jaws, followed by determination of the relationship between the obtained data and the occlusion time using mathematical and statistical analysis.

Results: The study of the morphology of the occlusal surface of natural teeth and fixed partial dentures supported by dental implants did not reveal significant differences in the results of measuring the distances between the cusps of the upper and lower first molars, both natural teeth and fixed partial dentures supported by dental implants.

[Development of an expert assessment of the quality of dental care].

The article proposes a methodology for creating an assessment of the quality of dental care based on the use of the method of analysis of hierarchies and the theory of fuzzy logic. Approbation of the methodology was carried out on the assessment of the quality of dental services for the manufacture of metal-ceramic crowns. When conducting a new assessment, you can achieve a reduction in the time of its conduct by 6 times, increasing the number of evaluation criteria by 2 times and get results with a confidence factor (=0.