Clinical study monitoring the pH on tooth surfaces in patients with and without erosion.
The aim of this study was to compare tooth surface pH after drinking orange juice or water in 39 patients with dental erosion and in 17 controls. The following investigations were carried out: measurement of pH values on selected tooth surfaces after ingestion of orange juice followed by ingestion of water (acid clearance), measurement of salivary flow rate and buffering capacity. Compared with the controls, patients with erosion showed significantly greater decreases in pH after drinking orange juice, and the pH stayed lower for a longer period of time (p < 0.05). Saliva parameters showed no significant differences between the two patient groups except for a lower buffering capacity at pH 5.5 in the erosion group.
Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland. adrian.lussi@zmk.unibe.ch
A
A
Lussi
M
M
von Salis-Marincek
C
C
Ganss
E
E
Hellwig
Z
Z
Cheaib
T
T
Jaeggi
D000328:Adult; D019540:Area Under Curve; D001628:Beverages; D002021:Buffers; D016022:Case-Control Studies; D019343:Citric Acid / Q000378:metabolism; D016001:Confidence Intervals; D003743:Dental Enamel / Q000737:chemistry*; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008657:Metabolic Clearance Rate; D012463:Saliva / Q000737:chemistry / Q000378:metabolism; D012636:Secretory Rate; D014077:Tooth Erosion / Q000378:metabolism* / Q000473:pathology*
D002021:Buffers; D019343:Citric Acid