Premium
PLAQUE PH IN CARIES‐ACTIVE AND INACTIVE SUBJECTS MODIFIED BY SUCROSE AND FLUORIDE, WITH AND WITHOUT BICARBONATE‐PHOSPHATE
Author(s) -
TURTOLA L O,
LUOMA H
Publication year - 1972
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1972.tb00299.x
Subject(s) - sucrose , ingestion , chemistry , distilled water , bicarbonate , sodium bicarbonate , dental plaque , phosphate , fluoride , food science , dentistry , biochemistry , chromatography , medicine , inorganic chemistry , organic chemistry
– Plaques were grown for 3 d by 16 caries‐active and 17 caries‐inactive subjects. During the growth, the subjects consumed tablets containing sucrose (C), sucrose with a 3% supplement of NaHCO 3 + KH 2 PO 4 combination (BP, mole ratio 9 82/1), sucrose with the NaHCO 3 + KH 2 PO 4 +10 parts/10 6 fluoride as NaF (BPF) or 10 parts/10 6 F as NaF alone in the sucrose (F). Ten tablets of the respective qualities were consumed within 30 min in the experimental sessions. Plaque samples were taken before, during and after ingestion of the tablets and suspended in a small volume of distilled water. The pH dropped immediately after the start of ingestion of the sucrose, remained practically at the decreased level during ingestion, and after ingestion dropped even more in the caries‐active plaques. Throughout the experiment, these plaques showed a lower average pH than the caries‐inactive. The BPF additive elevated significantly the pH of the caries‐active plaques from the respective sucrose values and the BP values, both during and after ingestion. The BP additive elevated the plaque pH only during ingestion and the F additive had no significant influence.