Dental calculus in relation to idiopathic calcium renal stone

الملخص EN

Background : dental calculus is a form of calcification process that occur in the oral cavity and due to its similar structural composition with calcium renal stone, so dental calculus formation may increase in those patients with calcium renal stone.

This study conducted to evaluate if there is a relation between dental calculus accumulations with calcium renal stone formation by investigating the relations of oral hygiene and gingival health status with urinary and salivary physical properties and constituents then comparing the results with healthy looking subjects.

Materials and Methods : Thirty patients with idiopathic calcium renal stone selected as study group with an age range (25-30) years and 30 gender and age matched healthy looking persons selected as control.

Plaque Index of Silness and Loe and Calculus Index component of Simplified Oral Hygiene Index of Green and Vermillion recorded oral cleanliness while Gingival Index of Loe and Silness recorded gingival health status.

Urinary and stimulated salivary samples collected and chemically analyzed to determine the concentrations of calcium, phosphorus, magnesium and urinary creatinine.

The pH and buffer capacity of saliva also estimated in this study.

Results : higher mean values of Plaque, Calculus and Gingival Indices scores recorded among study group with high significant differences compared control one, positive high significant correlation recorded between dental plaque with calculus accumulations among study group, higher mean values of salivary pH and buffer capacity recorded within study group with high significant difference compared control one, positive significant correlation recorded between calculus accumulation with salivary pH among study group, high significant elevation in the concentration of salivary phosphorus while high significant reduction in salivary magnesium concentration recorded within study group compared control one, significant correlations recorded between calculus accumulation with urinary constituents.

Conclusion : presence of significant correlations between dental calculus accumulations with calcium renal stone formation, so special oral health preventive programs are needed for those patients.