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1.
Afr Health Sci ; 20(2): 597-604, 2020 Jun.
Article En | MEDLINE | ID: mdl-33163020

BACKGROUND: Saliva is a complex secretion produced daily by the salivary glands. Saliva consists mainly of water, enzymes, ions and amino acids and performs several important functions in oral health. OBJECTIVE: The aim of this study was to investigate the flow rate and concentrations of amylase and total proteins in the saliva of hospitalized patients due to AIDS complications. METHODS: Ninety-three men and women (20-64 years of age) were divided into two groups (46 HIV-infected patients and 47 controls) and had salivary flow rate and levels of amylase enzyme and total proteins evaluated. RESULT: The mean salivary flow rate was lower in individuals with HIV when compared to controls (P < 0.05). No significant difference between amylase enzyme levels and total proteins were observed in the saliva of patients with HIV infection when compared to controls. CONCLUSION: Individuals with HIV / AIDS infection (in hospital treatment) suffer no interference in levels of amylase and total salivary proteins, but they have significantly reduced salivary flow.


HIV Infections/complications , HIV Seropositivity/complications , Saliva/metabolism , Salivary Proteins and Peptides/metabolism , Salivation/physiology , Xerostomia/complications , alpha-Amylases/metabolism , Adolescent , Adult , Aged , Amylases/analysis , Amylases/metabolism , Anti-HIV Agents/therapeutic use , Antiretroviral Therapy, Highly Active/adverse effects , Case-Control Studies , Female , HIV Infections/blood , HIV Infections/drug therapy , HIV Seropositivity/drug therapy , Humans , Male , Middle Aged , Salivary Glands/metabolism , Salivary Proteins and Peptides/analysis , Secretory Rate/drug effects , Secretory Rate/physiology , Xerostomia/etiology , Young Adult , alpha-Amylases/analysis
2.
BMC Oral Health ; 20(1): 190, 2020 07 06.
Article En | MEDLINE | ID: mdl-32631313

BACKGROUND: In the last years an increased interest in the use of salivary parameters in connection with caries experience and caries prediction has been shown. In schoolchildren investigations are known, where the relationship between caries prevalence and salivary parameters has been assessed, but in the adolescent population studies are scarce. The aim of the study was evaluate of the association among salivary parameters, oral health status and caries experience in adolescents in Mexico. METHODS: A cross-sectional study was conducted on 256 (DMFT≥5) and 165 (DMFT< 5) 12-to- 14-year-old adolescents. From all the adolescents, unstimulated mid-morning saliva samples were collected, after which the salivary flow rate was calculated, and the salivary pH and buffer capacity was measured. The caries was evaluated via the application of the DMFT score. Clinical variables such as oral hygiene and dental calculus were examined in the adolescent's oral cavity. The adolescents provided data on their personal characteristics by completing a questionnaire, while socioeconomic data were collected from their parents. Descriptive, bivariate and logistic regression model analyses were performed. RESULTS: The prevalence of caries was 61.1% (DMFT≥5) in permanent dentition, with 72.7% of subjects presenting poor oral hygiene. The mean levels of salivary flow rate, pH, and buffer capacity was significantly lower (p < 0.05) in adolescents with caries score of DMFT≥5 than in those with caries score of DMFT < 5. Salivary flow and buffer capacity were higher in boys than in girls. The logistic regression model applied showed that adolescents with a salivary flow rate < 1 ml per min were more likely to present caries [OR = 1.58 (CI95% 1.04-2.40); p = 0.033] than adolescents with a flow rate ≥ 1 ml per-min, and that, for each unit of increased pH, the probability of presenting caries reduced by 76% [OR = 0.24 (CI95% 0.10-0.55); p = 0.001]. CONCLUSION: Significant association was found in salivary flow rate, pH and buffer capacity in adolescents with caries (DMFT≥5). In addition to differences of these parameters by sex, the results suggest saliva parameters may act as indicators of caries in adolescents.


Dental Caries/epidemiology , Oral Health , Oral Hygiene , Saliva/physiology , Salivary Glands/metabolism , Secretory Rate/physiology , Adolescent , Buffers , Child , Cross-Sectional Studies , DMF Index , Dental Caries/metabolism , Female , Humans , Male , Mexico/epidemiology , Prevalence
3.
Acta Odontol Scand ; 78(3): 229-235, 2020 Apr.
Article En | MEDLINE | ID: mdl-31729277

Objective: The aim was to study prevalence of xerostomia, hyposalivation and quality of life among caries active younger adults.Materials and methods: A questionnaire regarding oral and general health, xerostomia and quality of life was mailed to 134 caries active (CA) and 40 caries inactive (CI) patients, 25-50 years of age (mean age 39.9 ± 6.2 years) treated at a Swedish Public Dental Service clinic, regarding oral and general health, xerostomia and quality of life. Caries data and unstimulated whole salivary flow rates were obtained from dental records.Results: The overall response rate was 69%. Dental records confirmed that CA patients had more decayed teeth over time than CI patients (p < .001). The CA group reported worse oral health (p < .001) and general health (p < .01), more xerostomia (p < .001) and lower salivary flow rate (p < .01) compared to CI patients. Xerostomia was inversely related to unstimulated whole salivary flow rates as well as to oral and general health (p < .01). There were no differences between groups in quality of life.Conclusion: Younger caries active adult patients reported significantly more xerostomia and hyposalivation compared to caries inactive patients. Xerostomia and hyposalivation were inversely related to perceptions of oral and general health, but not to quality of life.


Dental Caries/epidemiology , Oral Health/statistics & numerical data , Quality of Life , Secretory Rate/physiology , Xerostomia/epidemiology , Adult , Dental Caries/etiology , Dental Caries/psychology , Humans , Middle Aged , Prevalence , Retrospective Studies , Saliva/metabolism , Self Report , Sweden , Xerostomia/psychology
4.
Orv Hetil ; 159(40): 1637-1644, 2018 Oct.
Article Hu | MEDLINE | ID: mdl-30277415

INTRODUCTION AND AIM: To determine whether the continuous use of gel-type denture adhesives influence the unstimulated whole saliva, the palatal and labial saliva flow rates, and to assess the possible changes of subjective orofacial sicca symptoms. METHOD: 28 maxillary complete denture wearing patients (average age: 70 ± 10 years) were investigated. A gel-type denture adhesive was administered to the patients for regular use during the 3 weeks of examination. A questionnaire of 16 questions was used to evaluate subjective orofacial sicca symptoms. Unstimulated whole saliva was determined by the spitting method, palatal and labial saliva flow rates were measured by the Periotron® device with filter paper discs at the initial, first, second and third weeks. STATISTICAL ANALYSIS: The following tests were used: subjective values - χ2-test; flow rates - ANOVA, paired Student's t-test. RESULTS: According to the questionnaire, the ratio or severity of xerostomia did not change. A significant increase in the subjective feeling of "saliva thickness" could be detected (p = 0.027), but the other subjective parameters remained unchanged. Palatal saliva flow rates decreased significantly by week 3 (week 0: 4.21 ± 3.96 µl/cm2/min; week 3: 2.21 ± 2.30 µl/cm2/min; p = 0.024). On the other hand, there was no significant change in the unstimulated whole saliva (week 0: 0.37 ± 0.36 ml/min; week 3: 0.39 ± 0.35 ml/min) and labial saliva (week 0: 3.99 ± 3.75 µl/cm2/min; week 3: 2.58 ± 3.39 µl/cm2/min) flow rates. CONCLUSIONS: The regular use of denture adhesives did not influence xerostomia and the majority of subjective orofacial sicca symptoms, but may cause a subjective feeling of "increased saliva thickness" and reduce palatal minor salivary gland flow rates among complete maxillary denture wearers. Orv Hetil. 2018; 159(40): 1637-1644.


Saliva/metabolism , Salivary Glands, Minor/metabolism , Sjogren's Syndrome/metabolism , Aged , Aged, 80 and over , Denture, Complete , Female , Humans , Male , Middle Aged , Salivary Glands, Minor/physiopathology , Salivation , Secretory Rate/physiology , Xerostomia/etiology
5.
Adv Clin Exp Med ; 27(9): 1247-1252, 2018 Sep.
Article En | MEDLINE | ID: mdl-30024660

BACKGROUND: Patients with xerostomia have difficulties using dentures. Application of denture adhesives (DAs) can improve the stabilization of prostheses. OBJECTIVES: The aim of the study was to determine the retention capability of complete maxillary dentures in patients with xerostomia, determined with and without the use of prosthetic DAs. MATERIAL AND METHODS: This study evaluated the retention force of prostheses in a group of 60 patients diagnosed with xerostomia. Completely edentulous patients were classified into groups and all used the same kind of DAs during the study. The evaluation was performed 1, 3 and 6 h after application. RESULTS: All patients had poor retention of maxillary dentures without DAs. Maxillary denture retention was much better when DAs were used. The majority of the DAs used were most effective in terms of retention after 1 h. Denture adhesives in the form of glue had the best retention in this study of patients with xerostomia. CONCLUSIONS: The results of the present study revealed the impact of DAs on average retention forces in complete maxillary denture patients with xerostomia. Patients affected by a reduced secretion of saliva have difficulties using prosthetics. In some cases, such use becomes impossible because of a complete lack of retention. The application of DAs could be a solution in these cases. Denture adhesives in glue form had the best retention during the study for patients with xerostomia.


Adhesives/chemistry , Denture Retention/methods , Denture, Complete, Upper , Saliva/metabolism , Salivary Glands, Minor/physiopathology , Secretory Rate/physiology , Xerostomia/complications , Humans , Jaw, Edentulous/physiopathology , Patient Satisfaction , Xerostomia/physiopathology
6.
Arch Oral Biol ; 92: 90-95, 2018 Aug.
Article En | MEDLINE | ID: mdl-29778624

OBJECTIVE: Although the "mouthwatering" to sight, smell, or thought of food is commonly accepted in food and nutrition research, the concept of mouthwatering and human salivary flow conditioning is not well accepted in salivary research. The objective of this study was to revisit whether human salivary flow could be classically conditioned to a previously neutral stimulus. DESIGN: Sour candy or a non-food control in opaque containers were presented to healthy participants (n = 8). Simple images were consistently paired with container contents. Participants viewed the images for 15 s, then opened the containers and ate (candy) or did not eat (non-food control) the contents. This was repeated 14 times (7 of each stimulus). Order was semi-randomized to ensure one candy and one non-food were presented as the first two and last two stimuli. Saliva was collected with cotton dental rolls during these presentations (first two and last two) after viewing the image for 15 s, but before opening the container. RESULTS: Participants were successfully conditioned to increase salivary flow in response to the image that predicted candy, as demonstrated by greater weight of saliva in response to 1) the candy-paired image than the non-food-paired image, and 2) the candy-paired image at the end of the first visit compared with the beginning (when the image had no meaning). However, the effect was attenuated during the second visit. CONCLUSIONS: We demonstrate classical conditioning of human salivary flow is achievable, but the effect may not persist to a second visit.


Candy , Conditioning, Operant , Salivation/physiology , Secretory Rate/physiology , Taste/physiology , Adolescent , Adult , Cues , Female , Humans , Male , Middle Aged
7.
J Intern Med ; 284(3): 270-281, 2018 09.
Article En | MEDLINE | ID: mdl-29664160

BACKGROUND: Hyponatremia is a common feature of acute illness and associated with increased mortality. This may be explained by a stress-mediated activation of the vasopressin system with an increase in free-water reabsorption. OBJECTIVES: To investigate whether the association between hyponatremia and mortality could be explained by activation of the vasopressin system. METHODS: We prospectively enrolled adult, medical patients seeking emergency care in three centres in Switzerland, France and the United States. We investigated associations between admission plasma sodium and copeptin, a stable portion of the vasopressin-precursor peptide, with 30-day mortality. We performed uni- and multivariate regression analysis. RESULTS: Of 6962 included patients, 18% had hyponatremia (sodium ≤135 mmol L-1 ), which doubled their risk for mortality compared to patients with normonatremia (8.3% vs. 3.8%). This association was confirmed in a multivariate-adjusted logistic regression analysis [adjusted odds ratio (OR) 1.47, 95% CI 1.12-1.93, P = 0.005]. Vasopressin levels, mirrored by copeptin, were also increased in nonsurvivors and strongly associated with mortality (adjusted OR 3.42, 95% CI 2.76-4.25, P < 0.001). The association between hyponatremia and mortality remained unchanged when adding copeptin levels to the regression model (fully adjusted OR 1.53, 95% CI 1.16-2.00, P = 0.002). CONCLUSION: This prospective study including medical patients upon emergency room admission found hyponatremia as well as an activation of the vasopressin system to be independently associated with mortality. This suggests that stress- and vasopressin-independent mechanisms are responsible for the association of low sodium levels with mortality.


Acute Disease/mortality , Hyponatremia/blood , Hyponatremia/mortality , Vasopressins/blood , Adult , Aged , Cohort Studies , Correlation of Data , Cross-Cultural Comparison , Emergency Service, Hospital , Female , France , Glycopeptides/blood , Humans , Male , Middle Aged , Prospective Studies , Risk , Secretory Rate/physiology , Sodium/blood , Switzerland , United States
8.
Clin Oral Investig ; 22(9): 3121-3127, 2018 Dec.
Article En | MEDLINE | ID: mdl-29520470

OBJECTIVE: This aimed to assess the potential role of chronic stress in saliva secretion, xerostomia, and oral health in a population attending a saliva clinic. MATERIALS AND METHODS: Data of 114 patients who met the inclusion criteria and completed all questionnaires were analyzed in this study. Participants completed several validated questionnaires, including the Perceived Stress Scale, the Oral Health Impact Profile (OHIP-14), Xerostomia Inventory (XI), and Bother xerostomia Index (BI). Subsequently, the unstimulated, chewing-stimulated, and citric acid-stimulated saliva secretion rates were determined gravimetrically. Data were evaluated using Spearman's correlation analysis and the Mann-Whitney U test. RESULTS: A significant correlation was observed between perceived stress and XI score (r = 0.312, p = 0.001), as well as between perceived stress and BI score (r = 0.334, p = 0.001). Stress levels also were significantly associated with OHIP-14 scores (r = 0.420, p < 0.001), but an association between experienced stress and salivary flow rate could not be established. CONCLUSION: In this population, perceived chronic stress seems to be related to several aspects of dry mouth, including the perception of dry mouth, suffering from dry mouth, and the impact on quality of life. These effects were independent of the use of psychotropic medication. No actual reduction in salivary flow was found. Further studies to explore the causal linkage of stress with xerostomia seem warranted. CLINICAL RELEVANCE: Perceived chronic stress seems to be related with several aspects of dry mouth. This finding might be relevant in future prevention and treatment of xerostomia.


Salivation/physiology , Stress, Psychological/physiopathology , Stress, Psychological/psychology , Xerostomia/physiopathology , Xerostomia/psychology , Adolescent , Adult , Aged , Aged, 80 and over , Child , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Quality of Life , Risk Factors , Secretory Rate/physiology , Surveys and Questionnaires
9.
Caries Res ; 51(1): 1-6, 2017.
Article En | MEDLINE | ID: mdl-27846621

Salivary flow rate, pH, and buffering capacity are associated with dental caries, but studies from the cystic fibrosis (CF) literature are inconclusive regarding these salivary factors and caries. The aim of this study was to evaluate these factors and their associations with dental caries in individuals with CF. Unstimulated whole saliva was collected from individuals aged 6-20 years at Seattle Children's Hospital CF Clinic, USA (n = 83). Salivary flow rate was measured in milliliters per minute. Salivary pH was assessed using a laboratory pH meter. Buffering capacity was assessed by titration with HCl. The outcome measure was caries prevalence, defined as the number of decayed, missing, or filled primary and permanent tooth surfaces. Spearman's rank correlation coefficient and the t test were used to test for bivariate associations. Multiple variable linear regression models were used to (1) run confounder-adjusted analyses and (2) assess for potential interactions. There was no significant association between salivary flow rate or buffering capacity and caries prevalence. There was a significant negative association between salivary pH and caries prevalence, but this association was no longer significant after adjusting for age. There was no significant interaction between salivary flow rate and buffering capacity or between antibiotic use and the 3 salivary factors. Our results indicate that unstimulated salivary factors are not associated with dental caries prevalence in individuals with CF. Future studies should investigate other potential saliva-related caries risk factors in individuals with CF such as cariogenic bacteria levels, salivary host defense peptide levels, and medication use.


Cystic Fibrosis/epidemiology , Dental Caries/epidemiology , Saliva/chemistry , Saliva/metabolism , Secretory Rate/physiology , Adolescent , Child , Cross-Sectional Studies , DMF Index , Female , Humans , Hydrogen-Ion Concentration , Linear Models , Male , Prevalence , Risk Factors , United States/epidemiology , Young Adult
10.
Braz Oral Res ; 30(1): e106, 2016 Oct 10.
Article En | MEDLINE | ID: mdl-27737360

Oral complications of RA may include temporomandibular joint disorders, mucosa alterations and symptoms of dry mouth. The aim of this study was to evaluate the salivary gland function of subjects with rheumatoid arthritis (RA) comparing it to healthy controls. Subjects with other systemic conditions known to affect salivary functions were excluded. A questionnaire was applied for the evaluation of xerostomia. Resting and chewing-stimulated salivary flow rates (SFR) were obtained under standard conditions. There were 145 subjects included of the study (104 RA and 38 controls). About 66.7% of the RA subjects and 2.4% in control group presented xerostomia. The median resting SFR were 0.24 ml/min for RA subjects and 0.40 mL/min for controls (p = 0.04). The median stimulated SFR were 1.31 mL/min for RA subjects and 1.52 ml/min for controls (p = 0.33). No significant differences were found between resting and stimulated SFR of RA subjects not using xerogenic medications and controls. There was significantly higher number of subjects presenting hyposalivation in the RA group than among controls, even when subjects using xerogenic medications were eliminated from the analysis. In conclusion, hyposalivation and xerostomia were more frequent among RA subjects not using xerogenic medication than among controls, although there were no significant differences in the median SFR between groups.


Arthritis, Rheumatoid/drug therapy , Arthritis, Rheumatoid/physiopathology , Salivary Glands/drug effects , Salivary Glands/physiopathology , Xerostomia/chemically induced , Adult , Aged , Aged, 80 and over , Antirheumatic Agents/adverse effects , Case-Control Studies , Female , Humans , Male , Middle Aged , Salivary Glands/metabolism , Salivation/drug effects , Salivation/physiology , Secretory Rate/drug effects , Secretory Rate/physiology , Sex Factors , Statistics, Nonparametric , Surveys and Questionnaires , Young Adult
11.
Acta Odontol Scand ; 74(7): 576-583, 2016 Oct.
Article En | MEDLINE | ID: mdl-27565888

OBJECTIVE: The antimicrobial substances in saliva contribute to the maintenance of both oral health and overall health of the body. Therefore, the associations among immunoglobulin A (IgA), lactoferrin and lysozyme flow rates in the saliva of children, and their relationships with the physical attributes and lifestyle factors of children, were examined. MATERIALS AND METHODS: Saliva was collected from 90 children who visited the Kanagawa Dental University Hospital Pediatric Dentistry, and questionnaires were completed by guardians. IgA, lactoferrin and lysozyme concentrations were measured in the saliva samples using enzyme-linked immunosorbent assays (ELISAs). RESULTS: The IgA flow rate in saliva increased as age, height and weight increased. A correlation was found between lactoferrin and lysozyme flow rates. When the antimicrobial substance flow rates in the saliva were divided into two groups of 22 children each based on the highest and lowest quartiles, children with either a low or high IgA flow rate also had a high or low lactoferrin flow rate, respectively. The same pattern was observed for lactoferrin and lysozyme flow rates. CONCLUSIONS: There is a high probability that the IgA flow rate in the saliva of children reflects and corresponds to the developmental status of immune function as the child ages and increases in height and weight. The flow rates of lactoferrin and lysozyme were correlated in children. In addition, regarding lifestyle factors, the duration of sleep and lactoferrin flow rate were also related.


Immunoglobulin A, Secretory/metabolism , Lactoferrin/metabolism , Muramidase/metabolism , Saliva/metabolism , Salivary Proteins and Peptides/metabolism , Adolescent , Age Factors , Anti-Infective Agents/analysis , Anti-Infective Agents/metabolism , Body Height , Body Weight , Child , Child, Preschool , Cross-Sectional Studies , Feeding Behavior , Female , Humans , Immunoglobulin A, Secretory/analysis , Lactoferrin/analysis , Life Style , Male , Muramidase/analysis , Oral Health , Saliva/immunology , Salivary Proteins and Peptides/analysis , Secretory Rate/physiology , Sleep/physiology
12.
Clin Nurse Spec ; 30(5): E12-23, 2016.
Article En | MEDLINE | ID: mdl-27509571

AIMS AND OBJECTIVES: The study was conducted to determine the effect of chewing gum during hemodialysis on dry mouth and its symptoms. BACKGROUND: The imposition of fluid restriction and the use of medications that reduce saliva production may lead to dry mouth. DESIGN: This study is a randomized, controlled, single-blind, crossover experimental study. METHODS: The subjects consisted of 61 hemodialysis patients recruited from 4 dialysis centers in southern Turkey. The data were collected using a Patient Identification Form, a Form for Assessing the Symptoms of Dry Mouth, and a Patient Follow-up Form. Saliva samples were obtained for analysis of flow rates. RESULTS: The salivary flow rates of the patients increased during the first hour on the day when gum was chewed, and this increase was statistically significant. However, no significant difference was found between the salivary flow rates at the 0- and 4-hour time points on the day when gum was chewed (P > .05). In addition, the salivary pH values were in the normal range on both days, although the pH values tended to be more acidic on the day when gum was not chewed. CONCLUSIONS: Overall, it was found that chewing gum for 15 minutes each hour during a hemodialysis session did not increase the saliva amount, maintain the pH value of the saliva within a normal range, or control dry mouth symptoms.


Chewing Gum , Renal Dialysis/adverse effects , Saliva/chemistry , Salivation/physiology , Secretory Rate/physiology , Xerostomia/etiology , Xerostomia/therapy , Adult , Aged , Aged, 80 and over , Cross-Over Studies , Female , Humans , Hydrogen-Ion Concentration , Male , Mastication/physiology , Middle Aged , Single-Blind Method , Time Factors , Turkey
13.
Arch Oral Biol ; 69: 7-12, 2016 Sep.
Article En | MEDLINE | ID: mdl-27187143

OBJECTIVE: Unstimulated whole saliva (UWS) sialometry uses the spitting method to assess occurrence of hyposalivation. This study compares the UWS flow rates in volunteers sitting in a laboratory or in a clinical setting, in order to evaluate the influence of environment on salivary secretion. DESIGN: 25 healthy volunteers were recruited and divided into two groups to perform UWS sialometry under the two different settings (T1). Eleven weeks later, the participants repeated the same test (T2). At a unique time point and under the clinical setting, 18 patients complaining of xerostomia also performed the UWS sialometry; these values were used as control to corroborate findings. RESULTS: Different scenarios - laboratory one vs. clinical one - did not affect measurements of mean UWS flow rates. Both intra- and inter-individual variabilities, reported as standard error of the mean (SEM) and within-subject variance (WSV), resulted below the threshold of 0.1g/min. A significant difference was found between UWS flow rates from healthy volunteers and those from patients with xerostomia (p<0.05). Test/retest reliability showed a moderate correlation of datasets collected at the two time points from healthy volunteers (T1 vs. T2, 11 weeks later): under laboratory and clinical settings, Pearson's coefficients of correlation were r=0.62 and r=0.32, respectively. CONCLUSIONS: Type of environment did not influence UWS sialometry via spitting method, which appeared reliable for intra-day analysis of the salivary flow rate, although prone to physiological variations over time.


Saliva/metabolism , Adolescent , Adult , Environment , Female , Humans , Male , Saliva/physiology , Salivation/physiology , Secretory Rate/physiology , Xerostomia/diagnosis , Xerostomia/physiopathology , Young Adult
15.
Eur J Paediatr Dent ; 17(1): 53-6, 2016 Mar.
Article En | MEDLINE | ID: mdl-26949240

AIM: The aim of this study was to evaluate enamel defects (EDs), recurrent aphthous stomatitis (RAS) and salivary findings in Eastern Turkish children with coeliac disease (CD), and to compare the results with healthy children. STUDY DESIGN: 70 children (35 CD patients and 35 healthy patients) aged between 5 to 15 years were included in this study. Intraoral examination was performed; saliva specimens were collected for analysis. Oral health conditions, tooth brushing frequency, saliva pH level, flow rate and buffering capacity were recorded. Kruskal-Wallis test was used for comparison of DMFT and dft index. Chi-squared test was used for the data of oral health status. The significance level was set at p = 0.05. RESULTS: EDs were seen in 54.3% (19 patients) of the CD patients and more frequently than the controls (p < 0.05). Regarding RAS, 31.4% (11 patients) of the CD patients and none of control group had aphthous ulcers (p < 0.05). Salivary flow rate and buffering capacity were lower in CD patients (p < 0.05). CONCLUSION: The oral examination could be a significant contribution to the detection of CD. Especially paediatric dentists can play an important role in the early diagnosis and may help paediatricians about CD.


Celiac Disease/complications , Dental Caries/etiology , Dental Enamel/pathology , Saliva/physiology , Stomatitis, Aphthous/etiology , Adolescent , Buffers , Child , Child, Preschool , DMF Index , Dental Plaque Index , Female , Humans , Hydrogen-Ion Concentration , Male , Oral Hygiene Index , Secretory Rate/physiology , Toothbrushing/statistics & numerical data
16.
Article En | MEDLINE | ID: mdl-27017403

OBJECTIVE: This pilot study tested the effects of submandibular and sublingual gland stimulation by interferential current stimulation (IFCS), a noninvasive mode of electrical stimulation. STUDY DESIGN: Three groups were enrolled in this study: 20 young adults, 19 older adults, and 21 patients with dry mouth. Four electrodes were attached to the submandibular area, and the secreted saliva was collected by using Salivette cotton rolls (Sarstedt K. K., Tokyo, Japan) for 15 minutes, either with or without IFCS. Patients were randomly chosen to receive IFCS. Each subject rated pain and discomfort on the Visual Analogue Scale (VAS) after each experiment. Saliva chromogranin A levels were measured as a stress marker. To compare data between conditions with and without IFCS, a two-sample Student t test analysis was performed. RESULTS: Saliva flow was slightly increased in those in the dry mouth group receiving IFCS compared with those who did not receive IFCS (approximately 130%). However, no such difference was found in the young and older adult groups. There was no significant difference in the VAS values of pain and discomfort or in the stress marker levels between patients who received or did not receive IFCS in the three groups. CONCLUSIONS: IFCS delivered to submandibular and sublingual glands may promote saliva secretion in persons who suffer from dry mouth in a manner that does not induce pain or physical stress.


Electric Stimulation Therapy , Saliva/metabolism , Xerostomia/therapy , Adult , Aged , Biomarkers/analysis , Chromogranin A/analysis , Female , Humans , Male , Middle Aged , Pilot Projects , Saliva/chemistry , Salivation/physiology , Secretory Rate/physiology , Sublingual Gland/physiopathology , Submandibular Gland/physiopathology , Treatment Outcome , Xerostomia/physiopathology
17.
Acta Clin Croat ; 55(3): 390-395, 2016 09.
Article En | MEDLINE | ID: mdl-29045101

Elderly people, especially those institutionalized in long-term care facilities, are at risk of various oral diseases. The aim of the study was to determine the incidence of hyposalivation and colonization/oral fungal infection of oral cavity with yeasts, as well as dental status in institutionalized and non-institutionalized elderly. The study included 280 institutionalized and 61 non-institutionalized elderly people. Salivary flow rate, oral colonization with yeasts/oral infection and dental status were assessed and compared between the groups. The institutionalized elderly had a significantly lower salivary flow rate (p=0.035). Oral colonization with yeasts was more frequently found in institutionalized elderly (p<0.001) as compared with non-institutionalized elderly. A negative correlation was found between decreased salivary flow rate and oral yeast colonization and oral fungal infection in both the institutionalized (rs=-0.58; p<0.05) and non-institutionalized (rs=-0.52; p<0.05) groups. A significant difference in DMFT index was observed between the two groups (p<0.001). A negative correlation between decreased salivary flow rate and dental status was found in both the institutionalized (rs=-0.22; p<0.05) and non-institutionalized (rs=-0.56; p<0.05) groups. The results revealed a significantly higher level of hyposalivation and oral yeast colonization and poorer dental status in the institutionalized group as compared with the non-institutionalized group of elderly people.


Candidiasis, Oral/epidemiology , Institutionalization/statistics & numerical data , Mouth Diseases/microbiology , Mouth Mucosa/microbiology , Saliva/microbiology , Aged , Burning Mouth Syndrome/microbiology , Croatia/epidemiology , Female , Humans , Male , Mouth Diseases/epidemiology , Nursing Homes/statistics & numerical data , Oral Health , Secretory Rate/physiology , Taste Disorders/microbiology
18.
J Dent Res ; 95(1): 74-9, 2016 Jan.
Article En | MEDLINE | ID: mdl-26377569

Dental caries is a multifactorial disease that can be conceptualized as an interaction between genetic and environmental risk factors. The aim of this study is to examine the effects of AMELX, CA6, DEFB1, and TAS2R38 gene polymorphism and gene-environment interactions on caries etiology and susceptibility in adults. Genomic DNA was extracted from the buccal mucosa, and adults aged 20 to 60 y were placed into 1 of 2 groups: low caries risk (DMFT ≤ 5; n = 77) and high caries risk (DMFT ≥ 14; n = 77). The frequency of AMELX (+522), CA6 (T55M), DEFB1 (G-20A), and TAS2R38 (A49P) single-nucleotide polymorphisms was genotyped with the polymerase chain reaction-restriction fragment length polymorphism method. Environmental risk factors examined in the study included plaque amount, toothbrushing frequency, dietary intake between meals, saliva secretion rate, saliva buffer capacity, mutans streptococci counts, and lactobacilli counts. There was no difference between the caries risk groups in relation to AMELX (+522) polymorphism (χ(2) test, P > 0.05). The distribution of CA6 genotype and allele frequencies in the low caries risk group did not differ from the high caries risk group (χ(2) test, P > 0.05). Polymorphism of DEFB1 (G-20A) was positively associated, and TAS2R38 (A49P) negatively associated, with caries risk (χ(2) test, P = 0.000). There were significant differences between caries susceptibility and each environmental risk factor, except for the saliva secretion rate (Mann-Whitney U test, P = 0.000). Based on stepwise multiple linear regression analyses, dental plaque amount, lactobacilli count, age, and saliva buffer capacity, as well as DEFB1 (G-20A), TAS2R38 (A49P), and CA6 (T55M) gene polymorphism, explained a total of 87.8% of the variations in DMFT scores. It can be concluded that variation in CA6 (T55M), DEFB1 (G-20A), and TAS2R38 (A49P) may be associated with caries experience in Turkish adults with a high level of dental plaque, lactobacilli count, and age and when saliva buffer capacity is low.


Dental Caries/etiology , Gene-Environment Interaction , Adult , Amelogenin/genetics , Bacterial Load , Buffers , Carbonic Anhydrases/genetics , Case-Control Studies , DMF Index , Dental Caries/genetics , Dental Caries Susceptibility/genetics , Dental Plaque Index , Feeding Behavior , Gene Frequency/genetics , Genotype , Humans , Lactobacillus/isolation & purification , Middle Aged , Polymorphism, Genetic/genetics , Polymorphism, Single Nucleotide/genetics , Receptors, G-Protein-Coupled/genetics , Saliva/metabolism , Salivary Proteins and Peptides/genetics , Secretory Rate/physiology , Streptococcus mutans/isolation & purification , Taste/genetics , Toothbrushing/statistics & numerical data , Young Adult , beta-Defensins/genetics
19.
J Oral Rehabil ; 43(5): 340-7, 2016 May.
Article En | MEDLINE | ID: mdl-26662207

Previous studies have identified various factors related to masticatory performance. This study was aimed to investigate variations and impacts of factors related to masticatory performance among different occlusal support areas in general urban population in Japan. A total of 1875 Japanese subjects (mean age: 66·7 years) were included in the Suita study. Periodontal status was evaluated using the Community Periodontal Index (CPI). The number of functional teeth and occlusal support areas (OSA) were recorded, and the latter divided into three categories of perfect, decreased and lost OSA based on the Eichner Index. Masticatory performance was determined by means of test gummy jelly. For denture wearers, masticatory performance was measured with the dentures in place. The multiple linear regression analysis showed that, when controlling for other variables, masticatory performance was significantly associated with sex, number of functional teeth, maximum bite force and periodontal status in perfect OSA. Masticatory performance was significantly associated with number of functional teeth, maximum bite force and periodontal status in decreased OSA. In lost OSA, masticatory performance was significantly associated with maximum bite force. Maximum bite force was a factor significantly influencing masticatory performance that was common to all OSA groups. After controlling for possible confounding factors, the number of functional teeth and periodontal status were common factors in the perfect and decreased OSA groups, and only sex was significant in the perfect OSA group. These findings may help in providing dietary guidance to elderly people with tooth loss or periodontal disease.


Dentition , Diet , Jaw, Edentulous, Partially/physiopathology , Mastication/physiology , Periodontitis/physiopathology , Tooth Loss/physiopathology , Aged , Aging/physiology , Bite Force , Denture, Partial, Fixed/statistics & numerical data , Female , Guideline Adherence , Health Surveys , Humans , Japan/epidemiology , Jaw, Edentulous, Partially/epidemiology , Male , Nutritional Requirements , Periodontal Index , Periodontitis/epidemiology , Prospective Studies , Saliva/metabolism , Secretory Rate/physiology , Tooth Loss/epidemiology , Urban Population
20.
J Clin Pediatr Dent ; 40(1): 36-43, 2016.
Article En | MEDLINE | ID: mdl-26696105

OBJECTIVE: To evaluate a CAMBRA based therapeutic and preventive model for high caries risk children in a pediatric dentistry clinic set-up. STUDY DESIGN: A total of 100 systemically healthy children aged 4-8 years with dmft/DMFT ≥ 5 and/or ≤ 20% magnitude of cariogram sector 'chance to avoid new cavities' were enrolled. The program comprised of following components i.e. caries risk assessment, customized preventive interventions (Motivational interviewing and counseling, oral prophylaxis, fluoride varnish, fissure sealants) and restorative procedures. The recall intervals were scheduled on the basis of caries risk i.e. every 1 month (≤ 40% chance to avoid new cavities) and 3 months (≥ 41% chance to avoid new cavities). The primary outcome measure was 'new carious lesions' at 12 months following achievement of 'termination levels' i.e. ≥ 41% magnitude of 'chance to avoid new cavities.' The secondary outcome measures were changes in cariogram parameters at termination and duration needed to achieve termination levels. RESULTS: The program showed 97% success rate as 3/100 subjects developed new carious lesions at 12 months follow up. Highly significant (p<0.001) favorable shift was achieved in cariogram parameters at termination. Termination levels were achieved in 2.71 ± 4.854 months. CONCLUSIONS: The present CAMBRA based program with customized intervention and recall schedules showed favorable results.


Comprehensive Dental Care , Dental Caries Susceptibility , Dental Caries/prevention & control , Bacterial Load , Cariostatic Agents/therapeutic use , Child , Child, Preschool , Counseling , DMF Index , Dental Caries Activity Tests , Dental Plaque Index , Dental Prophylaxis , Dental Restoration, Permanent/methods , Feeding Behavior , Fluorides, Topical/therapeutic use , Follow-Up Studies , Humans , India , Motivational Interviewing , Oral Hygiene , Periodontal Index , Pit and Fissure Sealants/therapeutic use , Prospective Studies , Risk Assessment , Saliva/metabolism , Saliva/microbiology , Secretory Rate/physiology , Streptococcus mutans/isolation & purification , Treatment Outcome
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