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Evaluating the physicochemical properties and inorganic elements of saliva in caries-free and caries-active children. An in vivo study
 

Type:  Articles

Pubblication date:  06/2012

Authors:  T. Tayab1, K. Rai2, A. V. Kumari3

Language:  English

Institution:  1Senior Lecturer, Department of Pedodontics & Preventive Dentistry MR Ambedkar Dental College & Hospital, Bangalore, India 2Professor, Department of Pedodontics & Preventive Dentistry AB Shetty Dental College, Mangalore, India 3Professor & Head, Department of Pedodontics & Preventive Dentistry Sri Ramachandra Dental College & Hospital, Chennai, India

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Saliva; Flow rate, Salivary volume; Buffer capacity; pH; Electrolytes; Dental caries.

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Title:  Evaluating the physicochemical properties and inorganic elements of saliva in caries-free and caries-active children. An in vivo study

Abstract:  Aim The purpose of this investigation is to evaluate the physicochemical properties of saliva, such as salivary flow rate, volume, pH and buffer capacity and the levels of salivary sodium, potassium, calcium and phosphate ions in caries-free and caries-active children. Materials and methods The present study included 100 healthy children aged 7-12 years belonging to a rural population from Thiruvallur district (in Chennai, India), who were divided into Group I caries-free and Group I caries-active children, of 50 children each. Unstimulated saliva was collected by draining method and flow rate and volume were determined. The samples were then analysed for pH and buffering capacity using a manual pH meter. Sodium, potassium, and calcium concentration were analysed by Flame Photometer. Phosphates were analysed by Fiske and Subbarow’s colorimetric method. Data were then statistically analysed using the Student’s t-test (unpaired). Results The results revealed that when all these parameters were compared among the caries-free and caries-active children, the flow rate, volume, pH and buffering capacity were slightly reduced in the caries-active group and this was statistically significant, whereas the calcium, potassium and sodium concentrations were increased in the caries-free group in a statistically significant manner. Conclusion Within the limitation of this study, we can conclude that alterations in the physicochemical properties of saliva such as increased salivary flow rate, volume, calcium, sodium and potassium concentrations play a major role in the development of resistance to caries.

 
 
 
 
 
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