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Vol 25, No 6 (2021)

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Experimental and Theoretical Investigation

Quality of life of patients with complete loss of teeth and the psychometric properties of the OHIP-20 DG questionnaire. Part 3. Investigation of latent variables

Muslov S.A., Ruzuddinov N.S., Arutyunov S.D., Chizhmakov E.A., Moiseev S.I., Maslak A.A., Pivovarov A.A., Platonova M.S.


BACKGROUND: In the rehabilitation of patients with complete loss of teeth, an important aspect is the study of their quality of life (QL) as an indicator reflecting the effectiveness of treatment.

AIM: Use latent variables and control their magnitude to control the development or suppression of symptoms in patients.

MATERIAL AND METHODS: Within the framework of the modern theory of latent variables, the study examined the QL of patients with complete loss of teeth at various stages of dental orthopedic treatment.

RESULTS: The average relative error of the forward and reverse conversion of the “polytomic score indicators, i.e., latent variables,” was 3.69%, which indicated a very high accuracy of measurements of latent variables. The QL estimates obtained by different methods were in good agreement with each other, and the Pearson correlation coefficients were 0.991, 0.999, and 0.982 before and after prosthetics. The characteristic curves of the questionnaire items were close to the experimental score indicators (p <0.05). The parameters of the latent variables at various stages of treatment were calculated using the Kolmogorov–Smirnov criterion, which showed that their distributions were normal, and the medians moves in different directions, which corresponded to an increase in QoL during treatment and adaptation. The interpretation of latent variables is proposed: θi is the resistance (“reserve level”) of the body of the i-th patient before prosthetics or the effectiveness of treatment and adaptation after prosthetics; βj presents the severity and intensity of pathogenic factors in the development of the j-th symptom, and Pij is the probability of the removal of the j-th symptom in the i-th patient.

CONCLUSION: It has been established that by identifying and measuring latent variables, as well as controlling their magnitude, we can control the level of development or suppression of symptoms in patients.

Russian Journal of Dentistry. 2021;25(6):483-493
pages 483-493 views

Quality of life of patients with complete loss of teeth and psychometric properties of the OHIP-20 DG questionnaire. Part 4. Evaluation of the parameters using a nonlinear principal components analysis by the CatPCA algorithm

Muslov S.A., Nokhrin D.Y., Arutyunov S.D., Chizhmakov E.A., Pivovarov A.A., Platonova M.S.


BACKGROUND: The study researched the structure of the OHIP-20 DG questionnaire, which was compiled from the questions of the validated international special questionnaire OHIP-49, to assess the patients’ quality of life depending on their mouths’ organs and tissue with the help of сategorical principal component analysis.

PURPOSE OF THE STUDY: Reduce the original set of variables to an uncorrelated variables that carry the bulk of the information contained in the original set.

MATERIAL AND METHODS: To determine the connections between the scales of the quality of life (QoL) questionnaire OHIP-20 DG and to assess the factor validity of the latter, data reduction with generalization procedure was conducted by the method of nonlinear principal component using the CatPCA algorithm.

RESULTS: All scores from 0 to 4 were smoothed by a second-degree polynomial spline with three internal knots and ranking as a discretization method. To determine the number of necessary and sufficient components, Cattell’s scree plot and broken stick criteria were used. Calculations were performed using the IBM SPSS Statistics package (version 20), graphical constructions in the KyPlot (version 6.0), and PAST (version 4.06) packages.

CONCLUSION: The factor structure of the questionnaire was explored using CatPCA algorithm of nonlinear principal component analysis. The analysis confirmed the factor validity of the OHIP-20 DG questionnaire, but found two weak structural elements that are not related to the QoL, but most likely have a connection with the psychosocial aspects of patients’ health. Comparison of the questionnaires’ initial scores with their quantification values revealed the nonlinearity of patients’ perception of most of the questionnaire items. Which allows for a broader interpretation of the patterns of patients’ perception of QoL and further improvement of the questionnaire.

Russian Journal of Dentistry. 2021;25(6):495-503
pages 495-503 views

Sensitivity of parodontopatogens to the cell juice of Siberian fir (microbiological investigation)

Romanov A.S., Ragulin A.V., Olesov E.E., Tsarev V.N., Olesova V.N.


BACKGROUND: Search for new effective means of preventing inflammatory complications in the state of peri-implant tissues is relevant; in particular, products from coniferous greens produced by the Solagift company (Tomsk) are of interest. The “bioeffective cell juice of the Siberian fir,” the 100% carbon dioxide extract of Siberian fir (water fraction), stands out among them. Fir cell juice is recommended for enhancing immunity, preventing inflammatory diseases of the upper respiratory tract, and treating several pathological conditions. Fir juice contains vitamin C, carotene, polyphenolic compounds, flavonoids, iron, magnesium, copper, manganese, zinc, and maltol–iron chelate complex (a natural antioxidant).

AIM: This microbiological study aimed to examine the sensitivity of periodontal pathogens to “bioeffective cell juice of Siberian fir” of various concentrations.

MATERIAL AND METHODS: A number of periodontal pathogens were cultivated in the presence of “bioeffective Siberian fir cell juice” in the following proportions: 1:5, 1:10, and 1:15. Incubation for up to 3 days was conducted in a reverse-spinner RTS-1 bioreactor (BioSan, Latvia) with automatic analysis of the optical density (OD) of the culture at a wavelength (λ) of 850 nm. OD was measured in McFarland units (mcf). The assessment of culture growth control was based on the analysis of the growth phases of periodontal pathogens: adaptive (lag phase), exponential (log phase), stationary, and withering away. The following clinical isolates of microorganisms were used: Streptococcus constellatus, Staphylococcus aureus, Fusobacterium nucleatum, and Aggregatibacter actinomycetemcomitans.

RESULTS: The microbiological study of the sensitivity of periodontal pathogens (such as S. constellatus, S. aureus, F. nucleatum, and A. actinomycetemcomitans) to “bioeffective cell juice of Siberian fir” showed a growth slowdown of microorganisms in the presence of fir juice and inhibition of the growth of a culture of periodontal pathogens when co-cultivated with fir juice. A significant decrease in the OD of cultures of all studied periodontal pathogens was observed at a fir juice concentration of 1:10 and 1: 5. At these concentrations, there was no growth of S. aureus culture, and the degree of decrease in the average OD of other periodontal pathogens reached 27.1% (A. actinomycetemcomitans), 31.8% (F. nucleatum), and 33.6% (S. constellatus).

Russian Journal of Dentistry. 2021;25(6):505-510
pages 505-510 views

Clinical Investigation

Possibilities of sialendoscopy in the diagnosis and treatment of various diseases of the salivary glands

Аfanasyev V.V., Abdusalamov M.R., Kurbanov S.M.


BACKGROUND: Diagnosis and treatment of diseases of the salivary glands remain challenging to dental and maxillofacial surgeons. The development of new therapies remains an urgent task.

The goal is to increase the effectiveness of diagnosis and treatment of patients with various diseases of the salivary glands.

MATERIAL AND METHODS: Sialendoscopy was performed to diagnose and treat 61 patients with various diseases of the salivary glands. The age of the patients ranged from 20 to 94 years; there were 34 women and 27 men. General, specific, and special research methods were used for the preliminary diagnosis.

RESULTS: Sialendoscopy allows the diagnosis or confirms previously established diagnoses of various neoplastic diseases of the salivary glands in 91% of the patients. In 77% of the patients, sialendoscopy was used to completely remove the salivary stones.

CONCLUSION: Sialendoscopy can be an additional method of diagnosis and treatment of non-tumor diseases of the salivary glands and an auxiliary method of diagnosis and treatment during and after lithotripsy of salivary stones.

Russian Journal of Dentistry. 2021;25(6):511-516
pages 511-516 views

Highly selective nonsteroidal anti-inflammatory drugs in the prevention of postoperative pain symptoms

Iordanishvili A.K., Shvetsov M.M.


BACKGROUND: Patients often visit healthcare institutions for the treatment of various diseases, which are accompanied by painful symptoms. Nonsteroidal anti-inflammatory drugs (NSAIDs) are used for the prevention and relief of pain symptoms in surgical and trauma departments, providing good clinical results and analgesic effects.

AIM: This study aimed to evaluate the effectiveness of etoricoxib at various dosages for the prevention of pain symptoms after complex removal of the lower wisdom teeth.

MATERIAL AND METHODS: The patients were 108 (67 men and 41 women) young people (18–32 years old) who underwent a complex removal of an impacted and/or dystopic lower wisdom tooth for orthodontic indications. During the clinical study, the patients were divided into five groups depending on the use and dosage of the highly selective NSAID etoricoxib.

RESULTS: In the clinical study, etoricoxib was used at dosages of 30, 60, 90, and 120 mg to prevent pain in 108 patients aged 18–32 years who underwent complex removal of the lower wisdom teeth according to orthodontic parameters. For these purposes, it is effective and sufficient to use the drug at a dosage of 60 mg. Etoricoxib also prevented the occurrence of infectious and inflammatory postoperative complications, such as alveolitis, and provided better patient tolerance to the surgical intervention.

CONCLUSION: This clinical study on the effectiveness of etoricoxib at various dosages for the prevention of pain symptoms after removal the lower wisdom tooth showed the effectiveness of 60 mg, which should be taken 60–90 min before surgery and in the next 2–3 days in the morning. Etoricoxib not only provided a significant reduction in pain intensity in the postoperative period but also prevented the occurrence of infectious and inflammatory postoperative complications and enabled better patient tolerance to the surgical intervention. Etoricoxib dosages of 90 mg and 120 mg are not advisable for the prevention of pain symptoms in surgical dentistry. Such dosages are necessary for complex treatment of dental diseases, accompanied by a chronic pain syndrome.

Russian Journal of Dentistry. 2021;25(6):517-522
pages 517-522 views

Change of parodontological status under influence surge of aluminum production

Ismoilov A.A., Yusupov Z.Y., Ashurov G.G.


BACKGROUND: At present aluminum industry is one of leading branches of the economy of the Republic of Tajikistan. The ecological situation in condition of the modern industrialization and urbanization leaves to want best. Bad conditions of the labor render the negative influence upon tissues of the oral cavity, promotes more expressing intensity of the diseases of oral cavity. Specified aspects and define urgency of persisting studies.

AIM: The value of the influence of risk’s factor of aluminum production on condition of parodontology status.

MATERIAL AND METHODS: Conducted the complex dentistry examination with deepened study of parodontology status of 250 workman’s male of Tajik aluminum plant at the age from 30 to 50 years and checking group from 230 persons similar age-sexual sign, not having contact with bad factors of aluminum production. At examination of the oral cavity used the standard method of World Health Organization.

RESULTS: Analysis the results of clinical and epidemiological examination of aluminum plant’s worker allowed to reveal high prevalence of parodontal diseases. In the main group this factor formed 100% under importance of 89.7±3.76% — in checking.

CONCLUSIONS: In the main group established high level of importance of the index hygiene of oral cavity that is indicative of bad hygiene and insufficient level of motivations to its realization.

Russian Journal of Dentistry. 2021;25(6):523-528
pages 523-528 views

Complex orthodontic treatment of patients with constricted upper jaw using piezo corticotomy

Losev F.F., Arsenina O.I., Braylovskaya T.V., Popova N.V., Sherstobitov V.A., Makhortova P.I.


BACKGROUND: The question of choosing upper jaw expansion methods is relevant because of the high prevalence of upper jaw narrowing, which occurs in 7.9% and 9.9% of patients aged 12–18 and 18–50 years, respectively.

AIM: This study aimed to increase the efficiency of orthodontic treatments of patients with constricted upper jaw who refused volumetric surgical interventions.

MATERIAL AND METHODS: The results of the combined treatment of patients with narrow maxilla during the period of permanent bite are presented. The combined treatment consisted of orthodontic treatment using palatal expanders in combination with piezo corticotomy. Twenty patients with narrowing and deformity of the upper jaw were treated using this protocol, which was selected according to the results of cone-beam computed tomography in accordance with the stage “C” of the formation of the median palatal suture (mean age, 18.5 years). Orthodontic treatment was performed using tooth-borne and bone-borne palatal expanders.

RESULTS: The successful upper jaw expansion at the skeletal level was achieved in all the treated cases. The choice of the proposed method of treatment of adult patients with maxillary constriction was based on the analysis of the formation of the medial palatal suture and individual assessment of bone density.

CONCLUSION: The proposed method of upper jaw expansion allows the expansion of the upper jaw not at the dental but at the skeletal level.

Russian Journal of Dentistry. 2021;25(6):529-538
pages 529-538 views

Clinical efficiency of the technique for restoring the contact surfaces of the posterior teeth considering the age features

Permyakova A.V., Nikolayev A.I., Monakhova A.N., Petrova E.V.


BACKGROUND: Esthetic restoration methods of the posterior teeth using composite materials currently used in dentistry can only be used to create contact in a shape of a point, which does not correspond to the age characteristics of the teeth of adult patients.

AIM: This study aimed to develop and introduce into the dental practice methods for creating and precise positioning of contact pads with size and location that correlated with the patient’s age.

MATERIAL AND METHODS: The quality of restorations of the contact surfaces of the teeth and contact points were assessed considering age characteristics. A total of 289 direct composite restorations of class II (Black) defects that were performed during the treatment of dental caries in 178 patients aged 20–59 years were conducted. The characteristics of 162 Black class II composite restorations performed with modeling contact pads/surfaces using contact formers were compared with the characteristics of 127 Black class II composite restorations performed using the traditional restoration technique.

RESULTS: In the study groups (restorations created using contact formers) 7 days after treatment, restorations were completely in line with the clinical requirements (4 of 4 points) according to the criteria for assessing the quality of the contact surfaces of the teeth and contact pads: 98.3%±1.02% of restorations; after 12 months, 92.5%±2.07%; after 24 months, 74.8%±3.41% of the investigated composite dental restorations. In the comparison groups, the values were as follows: 16.3%±3.28% of restorations (p <0.005); after 12 months, 11.3%±2.81% (p <0.005); and after 24 months, 9.8%±2.64% (p <0.005).

CONCLUSION: The clinical application of the developed technique of contact area modeling during posterior teeth caries treatment, taking into account the age characteristics and using the contact adapter of the original design, makes it possible to improve the quality of the restoration of the contact surfaces of the teeth, contact areas, interdental embrasures, and anatomy of the interdental spaces in general.

Russian Journal of Dentistry. 2021;25(6):539-547
pages 539-547 views

Comprehensive interdisciplinary principle of diagnostics and treatment of oral mucosa lesions in psoriasis

Silantieva E.N., Yunusova E.I., Ruvinskaya G.R.


BACKGROUND: Psoriasis on the oral mucosa is not often diagnosed by practicing dentists, as it occurs in 2–3% of patients. Various factors are of primary importance in the occurrence and development of this pathology.

AIM: This study aimed to present a clinical case of psoriasis lesions in the oral mucosa to determine a set of interdisciplinary diagnostic and therapeutic measures for combined lesions of the skin and oral mucosa in patients with psoriasis.

MATERIAL AND METHODS: Changes in the mucous membrane of the tongue in a patient with psoriasis vulgaris is described. The manifestations in the oral cavity were identified as ICD-10-L40.0X.

RESULTS: A combination of diagnostic and therapeutic measures is presented with simultaneous manifestations of the disease on the skin and in the oral cavity.

CONCLUSION: The presented clinical example demonstrates the need for a comprehensive interdisciplinary examination and consultation with doctors of different specialties. For differential diagnosis and determination of the disease course, prognosis, and main research methods, it is necessary to perform histological examination of the biopsy of the pathological site of the oral mucosa, and if necessary the skin, and autofluorescence stomatoscopy of the oral mucosa and tongue. The described diagnostic and therapeutic measures will contribute not only to stopping the disease recurrence but also to reducing the level of stress, carcinophobia, and thereby improve the quality of life of the patients.

Russian Journal of Dentistry. 2021;25(6):549-554
pages 549-554 views

Clinical effectiveness of a new collagen-based drug with lincomycin for the prevention and treatment of jaw alveolitis

Tarasenko S.V., Muravev N.V., Khurkhurov B.R., Ershova A.M., Ippolitov E.V.


BACKGROUND: Alveolitis is the most common complication that occurs after tooth extraction. Among preventive and therapeutic methods, pharmacological agents for the dry socket treatment have been proposed. However, the “gold standard” for the prevention and treatment of alveolitis has not been defined.

AIM: The study aimed to conduct a comparative analysis of the effectiveness of a collagen sponge with lincomycin and an iodoform tampon for the prevention of the development and treatment of alveolitis.

MATERIAL AND METHODS: The study included 75 patients with jaw alveolitis and patients with teething disorders and chronic periodontitis who underwent planned tooth extraction. The patients were divided into two groups: group 1 underwent a socket revision, whereas group 2 had a tooth extraction. The patients of each group were divided into two subgroups: subgroup A used a collagen sponge with lincomycin and subgroup B used an iodoform tampon. The intensity of pain syndrome, severity of mucosal hyperemia, and collateral edema were assessed, and the epithelialization time of the sockets was recorded.

RESULTS: The clinical study of the effectiveness of a collagen sponge with lincomycin in comparison with an iodoform tampon demonstrated some advantages of a collagen sponge, including a more comfortable postoperative period, mild pain, less pronounced edema and hyperemia, epithelialization of the extracted teeth sockets 1.5 days earlier.

CONCLUSION: For the prevention and treatment of alveolitis, especially in patients in whom the use of iodine compounds is contraindicated, the use of “Alvanes” collagen sponge with lincomycin is preferable to an iodoform tampon.

Russian Journal of Dentistry. 2021;25(6):555-561
pages 555-561 views

Help a Practical Doctor

Damage to the zygomatic-orbital complex: Characteristics of treatment methods and complications

Grebnev G.A., Iordanishvili A.K., Sviridenko A.D., Krasikov A.V.


BACKGROUND: Modern methods of restorative and reconstructive surgery have made it possible to improve the results of treatment of patients with defects in the zygomatic-orbital complex; however, achieving good long-term treatment results continues remains difficult. The study presented a description of the methods of surgical treatment of defects and deformities of the zygomatic-orbital complex. The study made it possible to identify the advantages and disadvantages of the previously proposed methods and to assess the volume and characteristics of complications associated with specific methods. The surgical method of treatment was defined as the treatment of diseases by separating and connecting tissues during a surgical operation.

AIM: This study aimed to identify the main methods of surgical treatment of defects and deformities of the zygomatic-orbital complex, describe the most common of them, and determine the frequency and type of complications associated with each method.

MATERIAL AND METHODS: The study was based on the results of a retrospective analysis of 9605 case histories of patients treated at the Clinic of Maxillofacial Surgery and Surgical Dentistry of the Military Medical Academy named after S.M. Kirov from 2014 to 2020. Of these patients, 715 had facial injuries 335 had midface injuries, and 189 had injuries of the zygomatic-orbital complex.

RESULTS: The study interviewed 10 oral and maxillofacial surgeons who scored (1–5, most uncomfortable to see no improvement) the seven most popular materials in the clinic based on nine characteristics. Of the 189 patients who received treatment, late (not earlier than 6 months) complications were detected in 31 (16.4%) patients, which were divided into three groups: (A) fractures of the zygomatic-orbital complex with slight displacement of fragments, (B) subtotal fractures with the formation of defects and deformations, and (C) total defects and deformations.

CONCLUSION: There is no consensus as to how many fixation points are needed in the treatment of MJ fractures. Generally, the number of unstable fragments determines the number of fixation points in direct proportion. A recent meta-analysis showed that a 3-point fixation had greater fracture stability up to 3 months postoperatively compared with a 2-point fixation, but the level of evidence was low.

Russian Journal of Dentistry. 2021;25(6):563-572
pages 563-572 views


Experimental validation of laser radiation with a wavelength of 445±40 nm for the use in clinical practice

Romanenko N.V., Tarasenko S.V.


In many countries of the world, many preclinical studies have been carried out to study the effect of wave radiation of navy blue (400–440 nm) and blue (445–480 nm) colors on living and inanimate objects. In the available foreign literature, there are both complementary discoveries and contradictory results. The article presentes the conducted studies, the results of which reveal the high potential of laser radiation with wavelenght of 445±40 nm.

Russian Journal of Dentistry. 2021;25(6):573-582
pages 573-582 views

Memory pages

The scientific heritage of Professor V.I. Luk’yanenko, Colonel of medical service is an important page of the national maxillofacial surgery and stomatology (To the 100th anniversary of his birth)

Iordanishvili A.K.


BACKGROUND: A great contribution to the development of the maxillofacial surgery and stomatology in the second half of XX century was made by a prominent Russian maxillofacial surgeon, participant of the Great Patriotic War 1941–1945, Doctor of Medicine, professor, colonel of medical service Vladimir Isidorovich Luk’yanenko.

The study aimed to present the contribution of Professor V.I. Luk’yanenko to the theory and practice of maxillofacial surgery and dentistry.

Russian literature in the field of dentistry and maxillofacial surgery that mentions the merits of Professor Luk’yanenko and his monographs, textbooks, and scientific articles served as the material for the article.

Professor Lukianenko contributed significantly to the development of many scientific problems of dentistry and maxillofacial surgery. He was an innovator in traumatology of maxillofacial region, purulent maxillofacial surgery, periodontology, and therapeutic dentistry. Many of his editions, developments, and suggestions are still used in his daily educational and pedagogical work and are the reference books for dentists and maxillofacial surgeons of military medical and medical institutions of the country.

The scientific heritage of Prof. V.I. Luk’yanenko is a valuable contribution to the development of the maxillofacial traumatology, purulent surgery, and sections of stomatology. He has done much in the field for the improvement of surgical methods of treatment of facial bone fractures, osteomyelitis of the jaws, maxillary phlegmon, and periodontitis and diagnosis and treatment of pulpitis.

Russian Journal of Dentistry. 2021;25(6):583-588
pages 583-588 views

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