142
In more severe forms of fluorosis, it is necessary to carry out differential
diagnostics with various lesions of a non-carious and carious nature: a wedge-
shaped defect, medium and superficial caries, erosions, etc.
References:
1.
Семенов
В
.
М
., and
Т
. II.
Дмитраченко.
«Самостоятельная работа
студентов медицинских университетов как неотъемлемый принцип
подготовки высококвалифицированного специалиста»
.
Главный редактор:
проф. АТ Щастный Редакционная коллегия: проф. НЮ Коневаюва,О.А.
Сыродоева, проф.
(2017): 122.
2. Melkumyan, Timur V., et al. “Treatment of Class II Caries Lesions with
Application of Packable and Conventional Resin Composites: Clinical and
Experimental Study”. International Journal of Biomedicine 10.1 (2020): 66-69.
MODERN ENDODONTICS AND FACTORS INFLUENCING
THE PROGNOSIS OF ENDODONTIC TREATMENT
Pardayeva N.
student of group 305
-
С
faculty of pediatric dentistry
Scientific director: Mukimova Kh.O.
Assistant of the
Department of Faculty
Therapeutic Dentistry, Tashkent state
dental Institute, Uzbekistan
Endodontics is considered one of the most successful areas in dentistry.
With careful cleaning, shaping, debridement and obturation of the root canal
system, it is possible to achieve a successful outcome in the initial treatment in
approximately 94% of cases. With repeated endodontic treatment without signs
of apical periodontitis, this is possible in 89-96 %, and if they are present,
in 60-74%. At the current stage of endodontics, the size of the periapical lesion is
not the main factor in the decision to conservative endodontic treatment or
surgical removal of the lesion.
Due to the availability of instruments, equipment and treatment methods,
endodontic intervention should ideally end successfully. But when analyzing the
results of treatment, a number of publications noted that an unfavorable outcome
is noted even in the case of “well-treated canals”. In the current literature,
a successful long-term prognosis of endodontic treatment is associated with
intra- and extra-root factors.
Intraradicular factors include the complexity of endodontic anatomy,
infection, diversity of microflora in the root canal system, its resistance and ability
to organize into a biofilm. Non- root causes include extraradicular infection, "true"
cysts, the presence of endo- periodontal lesions, root resorption, the reaction of
periapical tissues to a foreign div (of endogenous or exogenous origin) and
iatrogenic factors (arising in the process of preparation, irrigation of the root
143
canal), toxic and irritating properties of the drugs used. Several of these
etiological factors often lead to the development of an inflammatory process in
the periodontium. Each of them can influence the outcome of endodontic
treatment.
Nevertheless, the failure of conservative treatment is still recommended to
be considered as the development of an infectious process. To eliminate intra-root
factors, the use of mechanical preparation, irrigation, the use of acoustic systems,
preparations based on calcium hydroxide is recommended. However, the complex
anatomy of root canals has a greater influence on the effectiveness of the treatment
than the applied treatment technique. Under conditions of careful implementation
of preparation and irrigation protocols, more than 42% of the root space wall
surface remains untreated, especially in the middle and apical thirds.
The diversity of microflora is confirmed by the isolation of bacterial DNA,
PCR diagnostics. Their associations, differences in composition during primary
and repeated endodontic treatment, the ability of non-pathogenic
microorganisms to maintain infection in root canals by isolating growth factors of
pathogenic microflora, the synthesis and disintegration of biofilm, the main mass
of which is located in the apical delta, were determined. The biofilm is
characterized by the presence of a polysaccharide matrix, various
microorganisms, impermeability to most irrigants. In inaccessible areas of the
root canal, hydrodynamic irrigation can destroy the biofilm.
The study of the antibacterial effect against E. faecalis of calcium hydroxide
paste, 0.05% chlorhexidine and 0.2/0.4% IKI with dentin, hydroxyapatite (as its
main inorganic component) and bovine serum albumin showed that the decrease
in the antibacterial activity of the studied preparations occurs in various ways.
mechanisms. Dentin has the potential to inhibit all study drugs, depending on
concentration and contact time. Calcium hydroxide was particularly sensitive to
inorganic and organic components. The antibacterial effect of 0.2/0.4%
potassium iodide solution of iodine on E. faecalis was not at all inhibited by less
than 28 mg of dentin, and was virtually unaffected. hydrosyappatite or bovine
serum albumin. In addition to the generally accepted mechanical and chemical
means, the intracanal use of physical factors has been introduced into the clinical
practice of endodontic treatment.
Monographs dedicated to endodontics cover the use of acoustic treatment,
ozone, vacuum, photoactivated disinfection, laser irradiation of the root canal,
high- frequency electrical impulses, the use of galvanic current. The advantages
and effectiveness of intracanal use of laser systems in modern dentistry have been
proven. Non-contact procedure, ablation effect, useful in smear layer removal,
safety of various spectral modes, antimicrobial activity in combination with a
photosensitizer and nanoparticles silver. Along with the advantages of laser
treatment, there is a need to increase the root canal from 50 to 70 sizes, it is
possible to break off in the channel of the fiber guide, which cannot be removed,
and the high cost of equipment is noted. After the penetration of ions through the
lateral tubules and root dentin into the apical periodontium was experimentally
144
proven, the effectiveness of „ Svit medicine and biology”, number 4 2011 rik 130
of many methods for the treatment of complicated caries using direct current in
the complex of etiotropic and pathogenetic therapy.
This uses the ability of galvanic current to move ions in channels of any
shape and diameter, regardless of their degree of patency, exposure from the
anode or cathode to impregnate root canals, it is possible to install a galvanic cell
in the channel, use the sorbent AUVM "Dnepr" MN as an electrode, silver – copper
conductor placed in Teflon insulation as a modern alternative to the resorcinol-
formalin method.
The greatest study and confirmation of clinical effectiveness was received
by electrophoresis of iodine preparations according to the method of L.R. Rubin
(1951) in the treatment of pulpitis and periodontitis, affecting the microflora and
reparative processes in periodontal tissues, reducing the duration of treatment.
References:
1.
Усманова, Шоира Равшанбековна, and Днлрабо Давлатназаровна
Давлатова. «Разработка критериев прогнозирования ранних нарушений
дисфункции эндотелиоцитов используя саливарные показатели»
.
ИНТЕРНАУКА 18.194 часть 1 (2021): 88.
2.
Юсупалнходжаева, С. X., et al. «Оптимизация оценки эффективности
эндодонтического лечения при сочетанных поражении пародонта»
.
ББК
51: 160.
3. Shukurova U.A., and
О
.
Е
. Bekjanova.
«
Correlation between cytokines of
oral liquid and blood serum in different forms of lichen planus
»
. Geneva
theoretical and practical forum of free topics. 2015.
OPTIONS FOR USING RUBBER DAM
Saidova D.,
2nd year student, Faculty of Dentistry
Research supervisor: Tilyakov K. A.,
assistant of the Department of Traumatology and Orthopedics,
Samarkand State Medical University, Uzbekistan
The relevance of research:
The use of rubber dam in dentistry in the first
place due to the need for high-quality isolation of the working field. However, the
use of cofferdam as isolation alone does not reflect real possibilities of this
material in practice.
Purpose ofthe study:
Visualization of methods for using latex and liquid
cofferdam. Also the work is aimed at preparing students to use this system,
consolidating the knowledge of already qualified employees, as well as generating
interest in the further development of methods for applying this element in
dentistry.
Materials and methods.
Cofferdam, forceps, perforator, template, frame,
clasps, dental floss, liquid rubber dam, materials for restoration, teflon tape.
