Influence of Swimming Training Session on Selected Saliva Components in Youth Swimmers.

Exercise may induce many changes in biochemical parameters of the saliva. Thanks to non-invasive access, saliva can be used as a diagnostic material in physical activity monitoring. The aim of the study was comparison of selected salivary components in swimmers before and after training session. 40 male subjects aged 12-15, out of whom 30 were competitive swimmers and 10 control were involved in the study. Salivary samples were collected from all subjects in the morning, and in the afternoon; from the swimmers, they were also collected before and after the workout. Salivary flow rate-V, pH, total protein-P, alpha-amylase-Amy, salivary peroxidase-SPO, cortisol-C, total antioxidant status-TAS, sialic acid (free-FSA, bound-GSA, total-TSA), calcium-Ca, magnesium-Mg were measured. The swimmers assessed the workout intensity of training session using the RPE Foster's scale. The circadian rhythm pattern of some salivary components and differences after training were found. In swimmers after the morning exercise significant increase of P (0.83 ± 0.27 vs. 1.10 ± 0.58 g/L), Amy (64.91 ± 70.86 vs. 87.07 ± 92.46IU/L), Ca (3.83 ± 1.33 vs. 4.99 ± 2.24 mg/L), Mg (0.52 ± 0.32 vs. 0.73 ± 0.34 mg/L), TAS (0.64 ± 0.27 vs. 0.72 ± 0.26 mmol/L) and decrease V (0.47 ± 0.37 vs. 0.36 ± 0.22 mg/min), C (5.86 ± 5.00 vs. 3.54 ± 5.07 µg/ml) were found. After the afternoon training significant increase of pH (7.13 ± 0.33 vs. 7.27 ± 0.24), Amy (111.53 ± 120.13 vs. 130.91 ± 161.14IU/L), Ca (3.72 ± 1.34 vs. 4.61 ± 1.58 mg/L), Mg (0.48 ± 0.28 vs. 0.60 ± 0.39 mg/L), TSA (5.64 ± 3.78 vs. 6.10 ± 3.08 mg/L), GSA (3.00 ± 3.06 vs. 3.38 ± 2.26 mg/L), and decrease of V (0.63 ± 0.63 vs. 0.49 ± 0.39 ml/min) were noticed. Before training in the morning in the swimmers significantly higher of V (0.47 ± 0.37 vs. 0.26 ± 0.15 mg/min), TAS (0.64 ± 0.27 vs. 0.40 ± 0.16 mmol/L), and lower pH (7.01 ± 0.46 vs. 7.53 ± 0.33), P (0.83 ± 0.27 vs. 1.86 ± 1.28 g/L), Amy (64.91 ± 70.86 vs. 146.56 ± 114.45IU/L) compared to the control were found. In the afternoon in swimmers before training session significantly lower pH (7.13 ± 0.33 vs. 7.53 ± 0.49) and Amy (111.53 ± 120.13 vs. 170.98 ± 107.72IU/L) in comparison to the control were noticed. The RPE scores were negatively correlated with V (rho = -0.500, p = 0.05 and pH (rho = -0.382, p = 0.03) measured after the morning session and after the afternoon training with V (rho = -0.570, p = 0.01) and Ca (rho = -0.401, p = 0.08). The levels of salivary flow rate, alpha amylase, cortisol, calcium, magnesium were associated with swimming training session, and showed circadian variation without a significant effect on their responses to exercise.

The impact of socioeconomic status, general health and oral health on Health-Related Quality of Life, Oral Health-Related Quality of Life and mental health among Polish older adults.

BACKGROUND: The study aims to evaluate the impact of socioeconomic status, general health and oral health parameters on Health-Related Quality of Life (HRQoL), Oral Health-Related Quality of Life (OHRQoL) and mental health in elderly urban residents of South-Western Poland. METHODS: The 500 residents of Wroclaw, aged 65 and older provided demographic and personal information as well as their medical history. A patient's oral condition were determined based on the clinical oral examination.Quality of Life was assessed using Euro-Quality of Life (EQ-5D), Oral Health Impact Profile-14 (OHIP-14) and Patient Health Questionnaire (PHQ-9).The association between exposure (socioeconomic status, general health and oral health) and outcome (HRQoL, OHRQoL and mental health variables) were analyzed with the use of four models: P - Poisson model, NB-Negative Binomial model, ZIP - Zero Inflated Poisson model, ZINB - Zero Inflated Negative Binomial model. RESULTS: The best model turned out to be the ZINB model, in which a negative binomial distribution in the count equation is assumed. In this model, only 13 independent variables had a significant effect on HRQoL, OHRQoL, and mental health. HRQoL assessed with the EQ-5D is significantly influenced by: living conditions 0.133 (95% CI: 0.001, 0.267, p = 0.049), income -0.348 (95%CI: -0.466, -0.230, p < 0.001), diabetes mellitus 0.437 (95%CI: 0.250, 0.624, p < 0.001), myocardial infarction 0.454 (95% CI: 0.151, 0.757, p = 0.003), stroke 0.543 (95%CI: 0.094, 0.992, p = 0.018) and renal disease 0.466 (95% CI: 0.206, 0.726, p < 0.001). Factors negatively affecting OHRQOL are: the need for oral treatment 0.278 (95%CI: 0.104, 0.452, p = 0.002), the number of missing teeth 0.053 (95%CI: 0.039, 0.067, p < 0.001) and gender 0.271 (95%CI: 0.015, 0.527, p = 0.038) and age -0.025 (95%CI: -0.042, -0.008, p = 0.003). An important factor influencing the level of depression assessed by the PHQ-9 questionnaire may be the material condition -0.225 (95%CI: -0.349, -0.101, p < 0.001). It should be emphasized that living with other people may be a factor that significantly increases the probability of avoiding the occurrence of depression symptoms. CONCLUSION: The study concerning elderly residents of the macroregion in Poland found the impact of socioeconomic, general health and oral health parameters on Health-Related Quality of Life, Oral Health-Related Quality of Life and mental health. Research on the quality of life of the elderly at the local level allowed to assess the factors linked to quality of life of older adults.

Gender-wise comparison of oral health quality of life and its relationship with oral health parameters among elderly from Wroclaw, south-west Poland.

BACKGROUND: In recent years, there has been an increase of aging population with longer life expectancy in females. This study aims to compare some oral health parameters and quality of life in the elderly. METHODS: The survey involved 500 urban residents (Wroclaw, Poland) aged 65 and older, of both gender. Socio-demografic data were assessed by self-reported questionnaire. Clinical examination included oral health assessment by the World Health Organization criteria with extension and oral dryness (Chalacombe scale). Quality of Life (QoL) was evaluated using Euro-Quality of Life, Oral Health Impact Profile-14 and Patient Health Questionnaire-9, which were validated for the Polish population. The relationship strength between psychometric scale scores and sociodemographic and clinical factors was determined by calculating Spearman's linear correlation coefficient values and regression coefficient values. RESULTS: There was no gender-wise differences in oral health parameters, except for a higher number of decayed teeth in males (DT 1.9±3.2 vs 1.2±2.4; p = 0.34). Oral dryness was diagnosed significantly more frequently in females then males (36.9% vs. 25.5%; p = 0.076). The males were significantly more likely to have high treatment needs (36.1% vs. 26.9%; p = 0.032) and they required urgent dental treatment (7.2% vs. 2.8%; p = 0.022). There were no significant differences in terms of QoL evaluated by EQ-5D, EQ-5D VAS or OHIP-14 questionnaires between males and females (0.832±0.194 vs 0.855±0.197, 67.9±10.9 vs 66.1±18.6, 7.2±12.9 vs 8.5±14.0, respectively; p > 0.05). However, females presented the higher severity of depressive symptoms measured by the PHQ-9 questionnaire (4.0±4.1 vs. 2.8±3.8; p<0.001). CONCLUSION: It can be concluded that the independent predictors which significantly affect the high QoL scores on the EQ-5D scale were found to be female gender, age below 75, high or middle income, independence in daily life, a low number of comorbidities, lack of oral treatment needs.

Resin Composite Materials for Chairside CAD/CAM Restorations: A Comparison of Selected Mechanical Properties.

OBJECTIVE: The aim was to evaluate the flexural strength, flexural modulus, microhardness, Weibull modulus, and characteristic strength of six resin composite blocks (Grandio Blocs-GR, Tetric CAD-TE, Brilliant Crios-CR, Katana Avencia-AV, Cerasmart-CS, and Shofu Block HC-HC). METHODS: Flexural strength and flexural modulus were measured using a three-point bending test and microhardness using the Vickers method. Weibull analysis was also performed. RESULTS: The materials showed flexural strength ranging from 120.38 (HC) to 186.02 MPa (GR), flexural modulus from 8.26 (HC) to 16.95 GPa (GR), and microhardness from 70.85 (AV) to 140.43 (GR). Weibull modulus and characteristic strength ranged from 16.35 (CS) to 34.98 (TE) and from 123.45 MPa (HC) to 190.3 MPa (GR), respectively. CONCLUSIONS: GR, TE, and CR presented significantly higher flexural strength, modulus, Weibull modulus, and characteristic strength than the others.

Association of parental-reported vitamin D supplementation with dental caries of 3-year-old children in Poland: a cross-sectional study.

OBJECTIVE: The study aimed to assess the association between parental-reported vitamin D supplementation and caries in a national sample of 3-year-olds in Poland. MATERIALS AND METHODS: A total of 1900 children, representing all provinces of Poland, were invited. The questionnaires concerned vitamin D supplementation, socio-demographics, and oral health behaviours. Based on dental examination, caries scores (dmft/dmfs), prevalence of early childhood caries (ECC) and severe ECC (S-ECC) were calculated. The Spearman's correlation, linear regression and logistic regression were used to assess the association between various factors and caries (p < 0.05). RESULTS: A total of 1638 children were tested. Of this number, 99.1% infants were supplemented with vitamin D. Supplementation had been continued seasonally in 55.2% children. ECC/S-ECC prevalence were significantly lower in children receiving vitamin D (ECC 38.3% vs. 44.7%, OR = 0.77; S-ECC 20.5% vs. 27.1%, OR = 0.69; p < 0.05). Mean dmft/dmfs were lower in those with supplementation (1.54 ± 2.72 vs. 2.24 ± 3.55; 2.40 ± 5.56 vs. 3.72 ± 7.56, respectively; p < 0.001). After controlling for confounding factors, supplementation was not significantly associated with caries; only dt/ds were still associated. Maternal education, sweetened beverages before bedtime, bottle use were significantly associated with S-ECC. CONCLUSIONS: Lower caries prevalence was observed in those with vitamin D supplementation. The association between parental-reported vitamin D and ECC/S-ECC was not significant in Polish children. Decayed teeth and supplementation were still associated. Dietary habits can modify the association with caries. CLINICAL RELEVANCE: There may be an association between vitamin D supplementation and lower caries in children. Parents should supplement their children during periods of significant growth and development.

Selected salivary parameters in children with idiopathic nephrotic syndrome: a preliminary study.

BACKGROUND: Disturbances in the levels of serum constituents occurring in chronic renal diseases can be reflected in the saliva composition. The aim of this study was to assess some selected salivary components in children suffering from idiopathic steroid-sensitive nephrotic syndrome (iNS). METHODS: A case-control study was performed on iNS and healthy participants. In unstimulated mixed saliva, pH, buffer capacity, total protein, α-amylase, peroxidase, calcium, magnesium, inorganic phosphate, fluoride, urea, uric acid and salivary flow rate were measured. Oral condition was assessed using dmft, DMFT, API and GI indices, usage of fluoride specimens and frequency of tooth brushing. Statistical analysis was performed by Shapiro-Wilk, Brown-Forsythe, Student's t, ANOVA, Tukey's and Pearson's chi-square tests, Pearson's and Spearman's correlations, logistic regression and receiver operating characteristic (ROC) curve analysis. RESULTS: The study involved 94 participants of both genders aged 4-17 (47 cases in relapse or remission phase of iNS and 47 controls) who were treated in the clinic of pediatric nephrology or outpatient dental clinic. Neither group differed in the number of caries-affected primary and permanent teeth, gingival condition or use of fluoride specimens. The iNS group presented lower levels of magnesium (0.41 ± 0.34 vs. 0.60 ± 0.38 mg/dL, P < 0.05) and fluoride (0.15 ± 0.10 vs. 0.21 ± 0.10 ppm, P < 0.01) and higher contents of urea (35.19 ± 15.55 vs. 25.21 ± 10.78 mg/dL, P < 0.01) and uric acid (2.90 ± 1.23 vs. 2.34 ± 1.04 mg/dL, P < 0.05) than the controls. In the iNS participants with relapse, a higher peroxidase activity and lower magnesium content than in the remission phase were found. ROC analysis showed a weak discriminatory power of these salivary constituents for the differentiation of participants with and without disease (accuracy from 66.0 to 67.0%, area under the ROC curve (AUC) from 0.638 to 0.682) and the relapse and remission phases (accuracy 70.2% and 68.1% and AUC 0.717 and 0.675, respectively). CONCLUSIONS: Levels of urea, uric acid, magnesium and fluoride in saliva can be associated with the course of iNS. Salivary levels of peroxidase and magnesium can be related to the phase of the disease. However, the measurements of these parameters cannot be useful as a noninvasive tool in diagnosing iNS and the phase of the disease.

Factors Associated with Early Childhood Caries in Polish Three-Year-Old Children.

PURPOSE: To assess the prevalence and associated factors with early childhood caries (ECC) in a Polish population. MATERIALS AND METHODS: A cross-sectional study was carried out involving 656 three-year-old preschool children of both sexes. Data were collected through oral examination of the children and a questionnaire self-reported by their parents. The questionnaire contained information on sociodemographic aspects, feeding and oral hygiene practices, dental care utilisation and dental health knowledge. Associations between ECC and caries-related factors were analysed with use of bivariate and multivariate logistic regression and Mann-Whitney U test. RESULTS: ECC was diagnosed in 64.0% children from the rural area and 46.6% from the urban one, more often in boys (57.7%) compared to girls (49.5%) and S-ECC in 37.1%, 24.2%, 31.5% and 27.5%, respectively. The associations between caries experience and living in a rural area, male sex, education level and oral health-related knowledge of a parent, tooth brushing frequency, nocturnal bottle-feeding and feeding with sweet beverages at the age over 12 months, consumption of sweetened within the first 2 years of age and drinking of sweet beverages once a week at bivariate level were found. In the final model of the logistic multivariate regression analysis, seven variables were associated with ECC experience. They revealed the probability in decreasing order: living in a rural area (odds ratios (OR) = 1.90); feeding the child during the first 2 years with sweetened food (OR = 1.77); nocturnal drinking of sweet beverages by the >12-month-old child (OR = 1.73); education level of parent (OR = 1.53); gender - male (OR = 1.48); nocturnal bottle-feeding of the over-12-month child (OR = 1.44); and frequency of tooth brushing (OR = 1.41). CONCLUSION: The most prominent risk factors for ECC were living in a rural area, consumption of sweetened foods within the first 2 years of age and nocturnal drinking of sweet beverages by the over 12-month-old child.

Oral health conditions in children with idiopathic nephrotic syndrome: a cross-sectional study.

BACKGROUND: Nephrotic syndrome is one of the chronic illnesses in the pediatric age group. The aim of this study was to assess the oral health of patients with steroid-sensitive idiopathic nephrotic syndrome (iNS). METHODS: A case-control study was performed on iNS patients and healthy from May 2018 to April 2019. Dental caries was assessed by the World Health Organization criteria, developmental defects of enamel by the mDDE index, oral hygiene by the OHI-S and API, and gingival condition by the GI. Oral health behavior was recorded using a standardized questionnaire including tooth brushing, fluoride prevention, dietary habits and utilization of dental care. Additionally, Streptococcus mutans (SM) and Lactobacillus spp. (LB) bacteria in saliva were assessed using the CRT bacteria test. Statistical analysis comparing oral health parameters was carried by Pearson's chi-squared, Fisher's exact, Shapiro-Wilk verified by Student's t or Mann-Whitney U tests. RESULTS: The study included 94 participants of both sexes at the age of 4 to 17 years (47 cases and 47 controls) who were treated in Clinic of Pediatric Nephrology or outpatients' dental clinic in Wroclaw, Poland. The iNS patients compared to the controls revealed some lower caries experience (83.0% vs 95.7%) and number of caries affected primary and/or permanent teeth (4.6 ± 3.5 vs 6.0 ± 4.1), a significantly lower number of filled primary and/or permanent teeth (1.1 ± 1.6 vs 3.5 ± 3.0, P < 0.001) and higher incidence of enamel hypoplasia (31.9% vs 4.3%, P < 0.001). The numbers of the iNS patients with high level of SM and LB were similar to the controls. The iNS patients had a higher OHI-S score (1.89 ± 1.59 vs 1.05 ± 1.02, P < 0.010) and a higher GI score (0.7 ± 1.0 vs 0.3 ± 0.6, P = 0.050). Moreover, they less frequently brushed their teeth twice a day (78.8% vs 93.6%, P = 0.026) and more frequently consumed three or more snacks daily (53.2% vs 23.4%, P = 0.002). CONCLUSIONS: The iNS patients despite the poor oral hygiene revealed lower caries experience but smaller number of restored caries-affected teeth, more severe gingivitis and more frequently teeth affected by enamel hypoplasia.

Does image file transfer, exposure time and optimization algorithm affect digital intraoral radiographs?

BACKGROUND: The transfer of digital radiographic images is widely practiced. Digital image processing can influence the perception of image quality. The question arises as to how exposure, internal image adjusting algorithms and image file transfer affect the optical density of digital radiographs. OBJECTIVES: To evaluate the influence of exposure time, optimization and file transfer on digital radiographs. MATERIAL AND METHODS: Calibration patterns were formed and a series of digital radiograms were recorded under standardized conditions. The radiographs were exported and then imported into the same software. Three groups of radiographs were analyzed: A - images originally performed and recorded in the software; B - images imported after exporting an optimized image; and C - images imported after exporting an image without optimization but with measurements of the density of the marked regions of interest. RESULTS: An increase of the exposure time decreases optical density. The optimization algorithm increases contrast and decreases differences between exposure times. Long exposures affect the visibility of objects with low optical density. After importing the images in Group B, there was a risk of using the optimization algorithm twice. When optimization was not performed, there were no differences between Groups B and A. In Group C, there was no risk of doubling the optimization algorithm. CONCLUSIONS: The transfer of digital radiographs can exert an influence on the optical density values. To avoid the risk of image distortion, files should be exported without image optimization.

Excessive computer use as an oral health risk behaviour in 18-year-old youths from Poland: A cross-sectional study.

Background: Many studies have indicated that the excessive use of computers (more than 3 hr/d) might be associated with an unhealthy life-style. Aim: The aim of this study was to evaluate the relationship between excessive computer use with the condition of the teeth and periodontium and the oral health behaviour of 18-year-olds. Design: Cross-sectional studies, using a questionnaire, were carried out on 1,611 18-year-olds from Poland. The questionnaire contained questions about socioeconomic status and information about health-related behaviour. The condition of their teeth and gingivae were clinically assessed. Results: Excessive (>3 h/d) computer use was reported by 492 (31%) of participants, who had an increased frequency of unfilled cavities (1.97 vs. 2.27, p = .047) and a higher risk of oral hygiene neglect (e.g., using dental floss 41% vs. 34%, p = .009). Excessive computer use was also seen to be associated with poor dietary habits. Individuals who declared excessive computer use also had a higher risk of gingival bleeding (35% vs. 29%, p = .009). Conclusion: In the group studied, excessive computer use by adolescents constituted a risk factor for neglect of oral hygiene, poor dietary choices, and failure to benefit from oral health care. Therefore, these aspects should be included in the risk assessment of oral disease and incorporated into educational programs that promote a healthy lifestyle.

Oral Health in Polish Fifteen-year-old Adolescents.

PURPOSE: To assess caries prevalence and periodontal condition in adolescents in Poland and investigate the factors related to oral health. MATERIALS AND METHODS: A national survey was carried out among 615 15-year-olds of both sexes living in urban and rural areas. Subjects were selected via cluster sampling. The mean DMFT and its components, the tooth distribution pattern of caries and percentage of subjects with gingival bleeding and gingival pockets were analysed. The information regarding sociodemographic, oral hygiene and nutritional variables was collected via questionnaire to evaluate their relationships with caries and periodontal parameters. The t-test, bivariate and multivariate logistic analyses were conducted to evaluate the differences and dependent variables of caries prevalence and gingivitis. RESULTS: Caries prevalence was 94.0%, and DMFT was 5.75 ± 3.74. Higher DMFT, DT and MT values were found in rural areas. 50% of the subjects carried about 75% of the total caries burden. Severe caries (DMFT ≥7) was associated with toothbrushing less than twice a day, not using a fluoridated dentifrice, frequent consumption of snacks and absence of pit-and-fissure sealants. The prevalence of gingival bleeding was 37.4% and shallow pockets 2.8%, which were higher in males and rural areas. Gingival bleeding was associated with toothbrushing less than a twice a day, not using dental floss and consumption of fresh fruits and vegetables less than once a week. CONCLUSION: The prevalence of oral diseases in Poland is very high. Additional strategies must be implemented to promote oral health early on to improve oral hygiene practices and nutritional habits.

Does oral dryness influence quality of life? Current perspectives in elderly dental care.

BACKGROUND: The oral condition can functionally, socially and psychologically influence the quality of life. Oral dryness often occurs in the elderly due to the presence of systemic diseases and medications, which favors the development of many lesions and complaints, including dental caries, candidiasis, retention of full removable denture, taste disturbance and it enforces a change in nutrition. OBJECTIVES: The aim of this study was to assess the impact of oral dryness on oral health-related quality of life in older subjects. MATERIAL AND METHODS: Five hundred subjects of both genders, aged 65 and over (mean 74.4 ±7.4) were involved in the study. Oral dryness was evaluated clinically with use of the Challacombe scale (CODS, Clinical Oral Dryness Score). The oral health-related quality of life was assessed by the Oral Health Impact Profile scale (OHIP-14). RESULTS: Oral dryness occurred in 32.8% of subjects, most often on a mild level (29.6%). The average value of the OHIP-14 scale was 8.01 ±13.59. The regression analysis demonstrated a significant association between oral dryness and two domains of the OHIP-14 scale, i.e. functional limitation (p < 0.01) and psychological disability (p < 0.05). CONCLUSIONS: Oral dryness is substantially related to the oral health-related quality of life, which indicates the necessity of monitoring oral dryness as part of routine dental care.

Knowledge of antibiotics and antimicrobial resistance amongst final year dental students of Polish medical schools-A cross-sectional study.

INTRODUCTION: Antimicrobial resistance has been one of the biggest global concerns. Dentists constitute an important group of antibiotic prescribers, and it was shown that their therapeutic decisions are not always rational. In this paper, we present knowledge of antibiotics prescription rules and antimicrobial resistance amongst graduating dentistry students from all dentistry faculties of medical universities in Poland, who will soon join the group of antibiotics prescribers. MATERIALS AND METHODS: A questionnaire consisting of 28 questions was developed. The survey was conducted in May-June 2015. RESULTS: The study group comprised a total of 752 students. About 54% expressed the opinion that dentists overprescribe antibiotics. One-tenth thought that they can be used for the treatment of flu (7%) and common cold (11%). Respondents pointed to amoxicillin (46%) and clindamycin (44%) as the first-choice treatment of dentoalveolar abscess, if medically indicated. More than half of the students (58%) suggested using doxycycline and metronidazole in aggressive periodontitis in an individual allergic to penicillin. The vast majority of students (97%) indicated that penicillins and cephalosporins were suitable for treatment of dental infections in pregnant women. The majority of participants (82%) said that rheumatic disease, chronic immunosuppression, chronic kidney failure and a history of infective endocarditis required a prophylactic administration of antibiotics before or during endodontic treatment. CONCLUSIONS: The research showed variable levels of understanding of antibiotics use amongst dental students in medical universities in Poland. Our results emphasise the need to educate dental students further regarding antibiotics and risks related to antibiotic misuse, especially in dental practice.

Prevalence of traumatic dental injuries in Polish 15-year-olds.

BACKGROUND: Traumatic dental injuries (TDIs) can occur at any age. They may cause health, functional, esthetic, and psychological problems, negatively affecting quality of life. OBJECTIVES: The objective of this study was to assess the prevalence, causes, treatment, and risk factors of TDIs among Polish adolescents. MATERIAL AND METHODS: As part of a cross-sectional national monitoring survey concerning the oral health condition and its determinants in the Polish population, 992 15-year-olds of both sexes were examined. The subjects were the residents of the urban and rural areas of 10 from a total of 16 provinces of the country. Caries-affected teeth were assessed according to the World Health Organization (WHO) criteria, and caries prevalence and the decayed, missing or filled teeth (DMFT) index values were calculated. Traumatic dental injuries were assessed with the use of the WHO criteria, modified for retrospective evaluation. The details of clinically diagnosed TDI were supplemented by a questionnaire and an interview. RESULTS: Overall, TDIs occurred in 22.0% of the subjects, similarly often in urban and rural areas (23.0% and 20.9%, respectively; p = 0.439), and more frequently in males than in females (26.2% and 18.2%, respectively; p = 0.002). The most common damage was crown fracture (46.2%), followed by luxation (43.9%) and avulsion (9.9%). Among the traumatized teeth, 73.8% received crown fracture restorations, 29.6% root canal treatment, and 17.5% were splinted due to luxation or avulsion. The most common cause of TDIs were accidental falls - 96.3%, including playing sports (27.1%), the other referred to violence/fight (3.7%). Nearly 14% of the accidents took place at school. The likelihood of TDI experience in males was 1.59-fold higher than in females. Males revealed a 2.76-fold higher probability of TDI incidence during participation in sports activities. Other predictors of TDIs were a low level of education of the mother, a poor socioeconomic status and a high DMFT score. CONCLUSIONS: A relatively high prevalence of TDIs in Polish 15-year-olds calls for effective planning and intervention to prevent the occurrence of the injuries and their aftereffects.

Oral health condition and occurrence of depression in the elderly.

Depression is a common disorder among the elderly; however, it is not a standard element of the ageing process. Depression can affect oral health as a result of neglecting oral hygiene procedures, cariogenic nutrition, avoidance of necessary dental care which leads to an increased risk of dental caries and periodontal disease.Assessment of the relationship of oral health parameters with depression.500 subjects aged ≥65 (mean 74.4 ±â€Š7.4) were involved in the study. Dental condition (decay-missing-filled index [DMFT], number of missing teeth [MT], removable denture wearing, teeth mobility), periodontal condition (bleeding on probing [BoP], pocket depth [PD], loss of attachment), oral dryness (the Challacombe Scale) and depression according to the Patient Health Questionnaire-9 (PHQ-9) scale were assessed.Depression on a minimal level was detected in 60.2% of the subjects, mild-in 22.2%, moderate-in 6.0% and moderately-in 2.6%. The mean of the PHQ-9 scale was 3.56 ±â€Š4.07. Regression analysis showed a positive relationship of the PHQ-9 value with DMFT, the number of MT, oral dryness and with age. No correlation was observed between other examined oral health indicators, such as periodontal condition (BoP, PD, clinical attachment level), periodontitis, removable denture wearing a PHQ-9.The results of our study have shown that among people aged 65 and over, the severity of depression increases with a higher number of MT, the number of decayed teeth, as well as prevalence of oral dryness.

Comparison of oral health condition in Polish adolescents within 7 years.

BACKGROUND: There is some increase in the risk of oral diseases in adolescence, as in this period of life, individuals become more independent regarding the consumption of sugary food and beverages, and they can be reluctant to apply oral hygiene procedures systematically. Therefore, adolescence is a period of life that needs special attention. OBJECTIVES: The objective of this study was to compare some oral health parameters and oral health-related behaviors of 15-year-olds within the past 7 years. MATERIAL AND METHODS: In 2008 and 2015, nationwide surveys on oral health condition involving 15-year-olds were carried out in Poland. Sampling and clinical examinations were performed according to the World Health Organization (WHO) criteria, which were extended with a questionnaire concerning pro-health behaviors. RESULTS: Caries prevalence and severity turned out to be a constant, as neither a significant reduction in the proportion of caries-affected adolescents (94.0% vs 94.0%) nor in the decayed, missing and filled teeth (DMFT) (5.96 vs 5.65), DT, FT, and significant caries (SiC) index values was found, except for a decline in MT (0.17 vs 0.07; p < 0.05). The periodontal condition revealed deterioration, since some increase in the percentage of adolescents with gingival bleeding (34.2% vs 37.4%), shallow pockets (0 vs 2.8%) and loss of attachment (0 vs 1.3%), and a decrease in the mean number of sound sextants (4.85 vs 4.21; p < 0.01) were noticed. Moreover, fewer adolescents declared brushing their teeth at least twice a day (77.8% vs 66.7%; p < 0.001). CONCLUSIONS: The high and constant prevalence of caries and deterioration of the periodontal condition indicate a significant burden on the oral health of adolescents. To improve this situation, the implementation of proper age-oriented oral health programs is needed.

The mechanical properties of human dentin for 3-D finite element modeling: Numerical and analytical evaluation.

BACKGROUND: The FEM is often used in investigations of dentin loading conditions; however, its anisotropy is mostly neglected. OBJECTIVES: The purpose of the study was to evaluate the anisotropy and the elastic properties of an equivalent homogenous material model of human dentin as well as to compare isotropic and anisotropic dentin FE-models. MATERIAL AND METHODS: Analytical and numerical dentin homogenization according to Luciano and Barbero was performed and E-modulus (E), Poisson's ratios (v) G-modulus (G) were calculated. The E-modulus of the dentin matrix was 28.0 GPa, Poisson's ratio (v) was 0.3; finite element models of orthotropic and isotropic dentin were created, loaded and compared using Ansys® 14.5 and CodeAster® 11.2 software. RESULTS: Anisotropy of the dentin ranged from 6.9 to 35.2%. E-modulus and G-modulus were as follows: E1 = 22.0-26.0 GPa, E2/E3 = 15.7-23.0 GPa; G12/G13 = 6.96-9.35 GPa and G23 = 6.08-8.09 GPa (highest values in the superficial layer). In FEM analysis of the displacement values were higher in the isotropic than in the orthotropic model, reaching up to 16% by shear load, 37% by compression and 23% in the case of shear with bending. Strain values were higher in the isotropic model, up to 35% for the shear load, 31% for compression and 35% in the case of shear with bending. The decrease in the volumetric fraction and diameter of tubules increased the G and E values. CONCLUSIONS: Anisotropy of the dentin applied during FEM analysis decreased the displacements and strain values. The numerical and analytical homogenization of dentin showed similar results.

Application of Chitosan and Propolis in Endodontic Treatment: A Review.

Chitosan and propolis are natural substances that can be commonly found in the environment. Chitosan is one of the several cationic polysaccharides found in nature. It is a natural biopolymer transformed from chitin which is a product of crustacean shells. Propolis is produced by honeybees through mixing the secretions of their hypopharyngeal glands with the digested product of resins collected from plants. Due to their excellent chemical and biological properties, chitosan and propolis arouse keen interest in dental science, including endodontics. There are various possibilities for applying propolis and chitosan based medicaments in endodontic treatment of root canals, and what is particularly emphasized is their potential effectiveness against resistant microorganisms such as E. faecalis and C. albicans, as well as biocompatible to the periapical tissues in comparison with the most commonly used agents. They aim at microflora which is difficult to eliminate, and their medicinal properties, including anti-inflammatory, antifungal and antiseptic properties, make them suitable for use in endodontic treatment. Due to the potential side effects of commonly used synthetic drugs and other safety related reasons, natural alternatives for endodontic usage are continuously explored and tested. The paper presents the possibilities of applying propolis and chitosan in endodontic treatment on the basis of chosen articles published in recent years.

Oral Health and Quality of Life in Old Age: A Cross-Sectional Pilot Project in Germany and Poland.

BACKGROUND: The process of ageing influences all dimensions of social life and personal well-being, but the influence of health on different dimensions of quality of life (QoL) among the elderly is rarely examined. OBJECTIVES: The aim of the pilot study is to test the feasibility of a comprehensive study design to evaluate general and dental health as well as QoL in a bi-national sample. In addition, this pilot study should allow for the exploration of potential interactions between QoL, socioeconomic, health and oral health variables. MATERIAL AND METHODS: Individuals aged 64 years and older (n = 100) from university dental clinics of the Wroclaw Medical University, Poland (n = 50) and of the University Hospital in Dresden, Germany (n = 50) were examined. The oral health status of participants was assessed by clinical examination. Socio-demographic, environmental and general health status were evaluated during the medical interview. General quality of life (GQoL) was assessed by an overall question with a visual analogue scale (VAS) from -5 (worst) to +5 (best). Health-related quality of life (HRQoL) and oral health-related quality of life (OHRQoL) were measured with the EQ-5D and OHIP-14 questionnaires. Statistical analyses comprised Pearson's c2 test, Wilcoxon test, linear regression model for statistical analysis and different multivariate linear regression analyses. RESULTS: For the GQoL-VAS-Score the results for QoL measurements were 1.22 ± 2.62 (x± SD), for EQ-5D-Score 7.45 ± 2.25 (x± SD), and for OHIP-14-ADD-Score 11.04 ± 13.56 (x± SD). Differences between Polish and German populations were observed. CONCLUSIONS: The study design proved to be feasible for a senior population. The overall GQoL question, EQ-5D and OHIP-14 were regarded as appropriate instruments. Subjective and objective (oral) health measures showed differences between Germany and Poland. For methodological reasons, these differences are not generalizable, but of value for study hypotheses in larger samples.

Salivary lactate dehydrogenase and aminotransferases in diabetic patients.

Diabetes mellitus (DM) is a group of metabolic diseases resulting from impaired insulin secretion and/or action. DM is characterized by hyperglycemia that can lead to the dysfunction or damage of organs, including the salivary glands.The aim of this study was to compare the levels of salivary lactate dehydrogenase (LDH), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) in diabetic patients.The study was approved by the Bioethics Committee of Wroclaw Medical University (Poland). The study comprised 90 adults of both sexes, aged 21 to 57 years. The patients were divided into 3 groups: type 1 diabetics (D1), type 2 diabetics (D2), and a healthy control group (C). Each group consisted of 30 age- and sex-matched subjects. Total protein (P, by Lowry method), LDH, AST, ALT (with Alpha Diagnostics kits), and salivary flow rate were measured in unstimulated mixed saliva. The level of glycosylated hemoglobin (HbA1c) was measured with DCA 2000 Reagent Kit. The obtained data were analyzed using the Mann-Whitney U test and the Spearman rank at a significance level of P < 0.05 with the use of STATISTICA 9.0 software.In comparison with C, D1 presented a significantly higher activity of LDH (P < 0.001), AST (P < 0.001), and ALT (P < 0.01), whereas D2 indicated higher levels of LDH (P < 0.001) and ALT (P < 0.05) compared with C. Comparing D1 to D2, approximately 3-fold higher activity of AST (P < 0.01) and approximately 4.5-fold higher activity of ALT (P < 0.01) was observed.Higher levels of salivary LDH, AST, and ALT in D1 compared with D2 and C confirm that salivary glands of D1 might be attributed to autoimmunological damage associated with the pathomechanism of DM.