scholarly journals Salivary Flow Rate Before, During and After Insertion of Complete Denture in Different Age Group: a Comparative study

2021 ◽  
Vol 3 (2) ◽  
pp. 53-59
Author(s):  
Dibya Devkota ◽  
Suraj Ram Bhakta Mathema ◽  
Laxman Bhusal
Keyword(s):  
Flow Rate ◽  
Salivary Flow ◽  
Study Data ◽  
Complete Denture ◽  
Salivary Flow Rate ◽  
Complete Dentures ◽  
Flow Rates ◽  
Mean Values ◽  
Group A ◽  
The Mean

Background: Increase in salivary flow accompanying complete denture insertion is a well-known phenomenon. Complete dentures act as a mechanical stimulant, increasing salivary flow after insertion. This study compares unstimulated and stimulated salivary flow rates before, during, and after insertion of a complete denture in different age groups.Method: Forty subjects meeting inclusion criteria were selected. Unstimulated saliva was collected first. Stimulation was produced by chewing paraffin wax and collected of saliva in a graduated container. This procedure was carried out before insertion, during insertion, 24 hours after, and 7 days after insertion of complete dentures. The study data were entered, edited, and coded in Microsoft Excel. The unstimulated and stimulated salivary flow rate was compared at different time intervals.Result: Unstimulated salivary rate was lowest before denture insertion with mean values of 0.27ml/minute. The highest flow rate was recorded during denture insertion (mean values of 0.60 ml/minute). The mean unstimulated salivary flow rate 24 hours after denture insertion was higher than 7 days after denture insertion. The mean stimulated salivary rate was lowest before denture insertion (mean values of 0.59 ml/minute). The highest flow rate was recorded during denture insertion (mean values of 0.93 ml/minute). There was a declining trend in salivary flow rate after denture insertion i.e. 0.86 ml/minute to 0.75ml/min after 24 hours and 7 days of denture insertion. A gradual decrease in salivary flow rate with an increase in age was noted but the association of age with salivary flow rates was not statistically significant.Conclusion: There was an increase in both unstimulated and stimulated salivary flow rate after insertion of complete denture and age does not affect salivary flow rates before, during (immediately after), 24 hours after, and 7 days after denture insertion.

Studies on Fluoride Concentrations in Human Submandibular/Sublingual Saliva and their Relation to Flow Rate and Plasma Fluoride Levels

1989 ◽  
Vol 68 (2) ◽  
pp. 146-149 ◽  
Author(s):  
A. Oliveby ◽  
F. Lagerlof ◽  
J. Ekstrand ◽  
C. Dawes
Keyword(s):  
Flow Rate ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Flow Rates ◽  
Impression Material ◽  
Collection Device ◽  
Unstimulated Saliva ◽  
The Mean ◽  
Gustatory Stimulation ◽  
Highly Correlated

Submandibular/sublingual saliva and blood were collected from five subjects after ingestion of 1 mg fluoride as NaF. An individual collection device, made from a silicone impression material, was used to collect the saliva in 10-minute samples, before and during 2 hr after the fluoride intake. In two separate experiments on each individual, submandibular/sublingual saliva was collected continuously at different flow rates: without stimulation and with gustatory stimulation. Blood was also collected at intervals throughout the experiments. The concentration of fluoride in the submandibularlsublingual saliva was less than that in the plasma but independent of salivary flow rate. The ratio between the saliva and plasma fluoride concentrations at the peak of the mean plasma fluoride concentrations was 0.55 ± 0.13 and 0.69 ± 0.11 in the experiments on unstimulated and stimulated salivary flow rate, respectively. The total amount of the ingested fluoride dose that was excreted through the submandibular/sublingual glands during 130 min was highly correlated with the salivary flow rate. The fraction of the ingested fluoride dose excreted in 2 hr was 0.04 ± 0.02% in the unstimulated saliva and 0.15 ± 0.09% in the stimulated saliva.

scholarly journals Effects of flow rate, duration of stimulation and mineralocorticoids on the electrolyte concentrations of mandibular saliva from the red kangaroo (Macropus rufus)

1986 ◽  
Vol 126 (1) ◽  
pp. 315-339
Author(s):  
A. M. Beal
Keyword(s):  
Flow Rate ◽  
Sodium Concentration ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Sodium Potassium ◽  
Flow Rates ◽  
Red Kangaroo ◽  
Flow Dependency ◽  
The Mean ◽  
Spontaneous Secretion

Mandibular saliva was collected at eight flow rates ranging between 0.052 +/− 0.0059 (S.E. of mean) and 4.294 +/− 0.0717 ml min-1 from anaesthetized red kangaroos receiving ipsilateral intracarotid infusions of acetylcholine. The concentrations of sodium (4.04 +/− 0.759 to 75.9 +/− 4.64 mmol l-1) and chloride (51.2 +/− 2.46 to 85.0 +/− 6.90 mmol l-1) and the osmolality (99.7 +/− 4.88 to 178.9 +/− 13.50 mosmol kg-1) were positively correlated with salivary flow rate over most or all of the flow range, whereas the concentrations of potassium (50.3 +/− 2.03 to 19.7 +/− 3.16 mmol l-1), calcium (5.43 +/− 1.696 to 1.26 +/− 0.055 mmol l-1), magnesium (259.8 +/− 49.3 to 19.0 +/− 1.88 mumol l-1), hydrogen ions (457.7 +/− 107.3 to 69.3 +/− 5.64 nmol l-1) and phosphate (2.22 +/− 0.171 to 0.27 +/− 0.040 mmol l-1) were negatively correlated with flow rate. Salivary bicarbonate concentration (15.6 +/− 1.76 to 21.9 +/− 1.83 mmol l-1) showed little flow dependency except possibly at high levels of stimulation. Spontaneous secretion was not observed during anaesthesia. During continuous stimulation of flow at two rates (0.5 and 2.0 ml min-1) for periods of 90 min, rest transients were observed for sodium, potassium, calcium, chloride and phosphate in the initial sample and the sodium concentration rose by 17–56% during the first 60 min of steady-state flow and stimulation. Indications that the gland was capable of responding rapidly to changes in endogenous mineralocorticoid levels were confirmed by intracarotid infusion of aldosterone at 80 micrograms h-1. With the mean salivary flow rate lying between 1.3 and 1.4 ml min-1, the salivary Na+/K+ ratio began to fall at 45–60 min of aldosterone infusion and after 4 h of infusion had fallen to 0.62 +/− 0.116. Administration of deoxycorticosterone acetate (DOCA) for 21 days at 0.25 or 0.3 mg kg-1 12 h-1 caused a further lowering of the Na+/K+ ratio to 0.09 +/− 0.013 at similar flow rates. Biopsy showed this increase to be associated with a moderate level of hypertrophy of the intralobular ducts of the gland. Two types of intralobular duct were identified on the basis of glycogen granulation after DOCA administration.(ABSTRACT TRUNCATED AT 400 WORDS)

scholarly journals Effect of a newly developed pastille on the salivary flow rate in subjects with dry mouth symptoms: a randomized, controlled, monocentric clinical study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S. Bielfeldt ◽  
D. Wilhelm ◽  
C. Neumeister ◽  
U. Schwantes ◽  
K. -P. Wilhelm
Keyword(s):  
Surface Tension ◽  
Flow Rate ◽  
Gum Arabic ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Dry Mouth ◽  
Main Ingredient ◽  
Control Product ◽  
Swallowing Problems ◽  
The Mean

Abstract Background Xerostomia is associated with several diseases and is a side effect of certain drugs, resulting from reduced saliva secretion. Often, aged and sometimes younger people suffer from (idiopathic) xerostomia. Chewing gum and sucking pastilles may relieve symptoms of xerostomia by increasing the salivary flow rate due to the mechanical effect of sucking and gustatory stimulation. Swallowing problems and the urge to cough or experiencing a tickling sensation in the throat might be alleviated through a reduction in dry mouth symptoms. We investigated whether a pastille containing four polysaccharides increased the salivary flow rate and relieved the symptoms of dry mouth. Methods Participating subjects with xerostomia were randomized into two equally balanced treatment groups. Subjects received the pastille on Day 1 and a control product (Parafilm®) on Day 3, or vice versa. Unstimulated saliva was collected every 2.5 min for 0–10 min. Stimulated saliva was collected after subjects sucked the pastille or the control product. The salivary flow rate was determined gravimetrically, and, in parallel, the feeling of dry mouth was assessed using a visual analog scale. Saliva surface tension was measured in pooled saliva samples (0–5 min of sampling). Additionally, in stimulated saliva from six subjects who sucked the pastille, the presence of the main ingredient—gum arabic—was examined by Raman spectroscopy. Results Chewing the pastille significantly increased the mean salivary flow rate by 8.03 g/10 min compared to the mean changes after chewing the control product (+ 3.71 g/10 min; p < 0.0001). The mean score of dry mouth was significantly alleviated by the pastille (− 19.9 ± 17.9 mm) compared to the control product (− 3.3 ± 18.1 mm). No difference between the two products was seen regarding the saliva surface tension. Gum arabic was present in the saliva of all investigated subjects for up to 10 min after sucking the pastille. Conclusions The pastille was well tolerated and effective in increasing the salivary flow rate and reducing mouth dryness after sucking. These results were in line with the detection of the main ingredient, gum arabic, in saliva for up to 10 min after sucking the pastille. Trial registration German Register Clinical Trials (Deutsches Register Klinische Studien, DRKS) DRKS-ID: DRKS00017393, Registered 29 May 2019, https://www.drks.de/drks_web/navigate.do?navigationId=trial. HTML&TRIAL_ID = DRKS00017393.

Association of Salivary Lipids and Early Childhood Caries in an Indian Subpopulation: A Preliminary Study

2019 ◽  
Vol 43 (6) ◽  
pp. 393-397
Author(s):  
Akhilesh Sharma ◽  
Mudunuri Sindhuja ◽  
Priya Subramaniam
Keyword(s):  
Flow Rate ◽  
Early Childhood Caries ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Total Lipids ◽  
Group Iii ◽  
Group I ◽  
The Mean ◽  
Preliminary Study ◽  
Group Ii

Aim: This preliminary study aimed to estimate and correlate the relationship between salivary flow rate and levels of salivary triglycerides, cholesterol and total lipids in children with and without early childhood caries. Study design: Ninety children aged 3 – 6 years were divided into three groups of 30 each based on their decayed missing filled tooth (dmft) score, group I (dmft score = 0), group II (dmft score ≥4 and ≤ 9) and group III (dmft scores ≥ 10). Whole unstimulated saliva was collected in a sterile graduated cup over a period of 5 minutes and was quantitatively analyzed for levels of salivary triglycerides, cholesterol and total lipids. Data obtained was subjected to statistical analysis by one way ANOVA, Post-Hoc tukey and Pearson’s correlation test. Results: Salivary flow rate was 1.20±0.36, 1.01±0.37 and 0.86±0.31 ml/min in group I, II and III respectively. The mean levels of salivary triglycerides in group I, II and III was 3.57±0.43mg/ml, 6.11±1.70mg/ml and 6.03±1.73 mg/ml, respectively. The mean levels of salivary total lipids were higher in group II and III, ie 22.51±2.87 mg/ml and 22.68±2.54 mg/ml respectively. The mean level of salivary cholesterol was highest in group III (8.03±2.91 mg/ml). Salivary triglycerides and total lipids showed a significant positive correlation with dmft scores of children (p≤ 0.001). Salivary cholesterol also had a positive association with dental caries experience of children but was not significant. There was a negative correlation between salivary flow rate and levels of salivary triglycerides, cholesterol and total lipids. Conclusion: Children with ECC (group II and III) had lower salivary flow rate and higher levels of salivary triglycerides and total lipids compared to caries free children (group I). Levels of salivary cholesterol did not differ between caries free and children with ECC.

Association Between Salivary Flow Rate and the Use of Systemic Medication Among 76-, 81-, and 86-year-old Inhabitants in Helsinki, Finland

1992 ◽  
Vol 71 (12) ◽  
pp. 1875-1880 ◽  
Author(s):  
T.O. Narhi ◽  
J.H. Meurman ◽  
A. Ainamo ◽  
J.M. Nevalainen ◽  
K.G. Schmidt-Kaunisaho ◽  
...  
Keyword(s):  
Flow Rate ◽  
Age Groups ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Flow Rates ◽  
Systemic Medication ◽  
Younger Age ◽  
Significant Difference ◽  
The Difference ◽  
Saliva Flow

The aim of this study was to examine salivary flow rate and its association with the use of medication in a representative sample of 76-, 81-, and 86-year-old subjects, totaling 368. In this study, 23% (n = 80) of the subjects were unmedicated. From one to three daily medications were used by 47% (n = 168) and more than four medications by 30% (n = 104). The most commonly used medications were nitrates, digitalis or anti-arrhythmic drugs (47.7%), analgesics and antipyretics (32.6%), and diuretics (29.5%). The mean number used daily was significantly higher in 86-year-olds than in the two younger age groups (p < 0.01). No significant differences in this respect were found between genders. Among the unmedicated subjects, 76-year-olds had significantly higher stimulated salivary flow rates than did the 81-year-olds (p < 0.05). Unmedicated women showed significantly lower unstimulated (p < 0.01) and stimulated flow rates than did men (p < 0.05). Stimulated salivary flow rate was also significantly higher in the 76-year-old medicated subjects than in the medicated 86-year-old subjects (p < 0.05). No statistically significant differences were found in unstimulated salivary flow rates among the three age groups. Medicated women showed significantly lower unstimulated salivary flow rates than men (p < 0.001), although the difference in stimulated saliva flow was not significant. A statistically significant difference in unstimulated and stimulated salivary flow rates was found between unmedicated persons and those who took from four to six, or more than seven, prescribed medications daily.

Comparison of Whole Saliva Flow Rates and Mucin Concentrations in Healthy Caucasian Young and Aged Adults

1992 ◽  
Vol 71 (6) ◽  
pp. 1275-1278 ◽  
Author(s):  
M. Navazesh ◽  
R.A. Mulligan ◽  
V. Kipnis ◽  
P.A. Denny ◽  
P.C. Denny
Keyword(s):  
Flow Rate ◽  
Salivary Flow ◽  
Young Group ◽  
Salivary Flow Rate ◽  
Flow Rates ◽  
Aged Group ◽  
Whole Saliva ◽  
Saliva Flow

Unstimulated and chewing-stimulated whole saliva samples were obtained from 42 healthy Caucasians; 21 were between 18 and 35 years of age, and 21 between 65 and 83 years of age. The unstimulated salivary flow rate was significantly lower in the aged group, but the stimulated flow rate was significantly higher in the aged than in the young group. Both groups showed significantly increased flow during salivary stimulation. MG1 and MG2 concentrations in unstimulated and stimulated saliva samples were significantly lower in the aged group. There were no significant correlations between salivary flow rates and MG1 and MG2 concentrations.

scholarly journals Variations of salivary flow rates in Brazilian school children

2006 ◽  
Vol 20 (1) ◽  
pp. 8-12 ◽  
Author(s):  
Sandra Regina Torres ◽  
Marcio Nucci ◽  
Estevão Milanos ◽  
Renata Pessoa Pereira ◽  
Alessandra Massaud ◽  
...  
Keyword(s):  
Public Schools ◽  
Health Status ◽  
Flow Rate ◽  
School Children ◽  
Medical Records ◽  
Salivary Flow ◽  
Salivary Flow Rate ◽  
Healthy Individuals ◽  
Flow Rates ◽  
Whole Saliva

The salivary flow rate (SFR) in healthy individuals may vary according to different factors. There is a scarcity of studies from different geographical areas that analyze SFR variations in children. The aim of this study was to verify stimulated salivary flow rate (SFR) variations in 6 to 12-year-old children, from four different public schools of Rio de Janeiro and correlate these data to gender, age, type of dentition, and health status. Clinical data were taken from the children's medical records that were kept at those schools. Oral examination and sialometry were performed in every child. Salivary flow rate was obtained by chewing-stimulated whole saliva under standard conditions. There were significant differences in SFR according to age (p = 0.0003). Six and 12-year-old children showed the lowest SFR, and when they were excluded from the analysis, no significant differences were found (p = 0.21). There were also significant differences in SFR among children from different public schools (p = 0.0009). The gender did not show any correlation to SFR, even when children were stratified by age (p = 0.36). Correlation between SFR and deciduous, mixed or permanent dentition was not found as well. These results show that the analyzed clinical variables did not seem to influence SFR in this children population.

scholarly journals Salivary flow, amylase, and total protein in hospitalized patients with HIV infection / AIDS complications

2020 ◽  
Vol 20 (2) ◽  
pp. 597-604
Author(s):  
Núbia Carina de Oliveira ◽  
Thayse Caroline de Oliveira ◽  
Vanessa Cavassin Klamas ◽  
Mateus Anhaia Ventura ◽  
Adryano Arana Kamei ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Flow Rate ◽  
Salivary Flow ◽  
Hospitalized Patients ◽  
Salivary Flow Rate ◽  
Salivary Proteins ◽  
Hospital Treatment ◽  
Total Proteins ◽  
The Mean ◽  
Proteins And Peptides

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. Results: The mean salivary flow rate was lower in individuals with HIV when compared to controls (P < 0.05). No signifi- cant 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. Keywords: Saliva; Salivation; Alpha-Amylases; Salivary Proteins and Peptides; Xerostomia.

scholarly journals Salivary Flow Rates of Nigerian Patients with Chronic Kidney Disease: A Case-control Study

2015 ◽  
Vol 16 (4) ◽  
pp. 264-269 ◽  
Author(s):  
Elijah Olufemi Oyetola ◽  
Foluso John Owotade ◽  
Gbemisola Adewumi Agbelusi ◽  
Olawumi Fatusi ◽  
Abubakar Sanusi ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Flow Rate ◽  
Case Control Study ◽  
Salivary Flow ◽  
Case Control ◽  
Salivary Flow Rate ◽  
Flow Rates ◽  
Control Study ◽  
Blood Creatinine

ABSTRACT Aims and objectives The study determined the relationship between chronic kidney disease (CKD) and changes in salivary flow and the complications of reduced salivary flow among African subjects with CKD compared with the controls. Materials and methods One hundred and eighty patients, 90 CKD and 90 controls were recruited, interviewed and examined. Stimulated and unstimulated saliva collection was done with standardized spitting method. Urinalysis and blood creatinine levels were determined and glomerular filtration rate (GFR) of each patient was calculated from the blood creatinine using Cockcroft and Gault formula. Statistical analysis was done using STATA 11 software. Results The mean stimulated and unstimulated whole salivary flow rate among CKD subjects were 4.07 ± 1.91 and 2.34 ± 0.99 ml/5 min respectively and is significantly lower than that of the controls which were 8.05 ± 3.95 ml/5 min and 3.82 ± 2.27 ml/5 min for stimulated and unstimulated flow rates. Oral signs of reduced salivary flow were found in 80% of CKD patients. The commonest oral finding was taste abnormalities others are burning sensation, halitosis and difficulty in mastication. Conclusion Patients with CKD had reduced stimulated and unstimulated salivary flow rate. Reduced salivary flow was associated with oral lesions in majority (80%) of CKD patients, the commonest finding being taste abnormalities. How to cite this article Oyetola EO, Owotade FJ, Agbelusi GA, Fatusi O, Sanusi A, Adesina OM. Salivary Flow Rates of Nigerian Patients with Chronic Kidney Disease: A Case-control Study. J Contemp Dent Pract 2015;16(4):264-269.

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