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Quintessence Publishing: Journals: OHPD


Oral Health & Preventive Dentistry

Edited by Anton Sculean, Poul Erik Petersen, Avijit Banerjee

ISSN (print) 1602-1622 • ISSN (online) 1757-9996


Spring 2007
Volume 5 , Issue 1

Pages: 73-78
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Study of the Buffering Capacity, pH and Salivary Flow Rate in Type 2 Well-Controlled and Poorly Controlled Diabetic Patients

Bernardi, Maria Josť / Reis, Alessandra / Loguercio, Alessandro Dourado / Kehrig, Ruth / Leite, Mariana Ferreira / Nicolau, Josť

Purpose: This study measured the flow rate, pH and buffering capacity of saliva from well- and poorly metabolically controlled Type 2 diabetic patients in three cities of the southern part of Brazil, compared with healthy individuals from the same cities. Materials and Methods: Whole saliva was collected by mechanical stimulation and buffering capacity and glucose level were measured. Blood was collected after 12 hours fasting and glucose and glycosylated haemoglobin concentrations were determined. The data were analysed by one-way ANOVA and Student-Newman-Keuls (α = 0.05). Results: The flow rate was lower in the Type 2 diabetic patients, regardless of whether they were well or poorly metabolically controlled, compared with healthy individuals (p < 0.05). Salivary glucose concentration was higher in both diabetic patient groups, i.e. well and poorly metabolically controlled, than in the control (p < 0.05). Conclusion: The metabolic control of hyperglycaemia was not sufficient to improve the salivary flow rate or the salivary glucose concentration. Keywords: buffering capacity, flow rate, pH, saliva, Type 2 diabetes

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