Effect of pH and titratable acidity on enamel and dentine erosion

Objectives The relative effect of pH and titratable acidity on tooth erosion remains unclear. We determined the effect of both properties on in vivo salivary pH recovery and on enamel and dentine early erosion in situ. Methods Solutions simulating acidic beverages with different pHs (2.5 or 3.5) and...

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Bibliographic Details
Published in:Clinical oral investigations 2022-09, Vol.26 (9), p.5867-5873
Main Authors: Fernández, Constanza E., Brandao, Ana Carolina S., Bícego-Pereira, Eloá C., Del Bel Cury, Altair A., Cury, Jaime A., Tenuta, Livia M. A.
Format: Article
Language:English
Subjects:
Acidity
Beverages
Citric acid
Dental enamel
Dentistry
Enamel
Etching
Medicine
Original Article
pH effects
Saliva
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Summary:Objectives The relative effect of pH and titratable acidity on tooth erosion remains unclear. We determined the effect of both properties on in vivo salivary pH recovery and on enamel and dentine early erosion in situ. Methods Solutions simulating acidic beverages with different pHs (2.5 or 3.5) and titratable acidities (0, 25, or 100 mM citric acid) were tested. In an in vivo study ( n  = 20 participants), the salivary pH was determined before, during, and up to 2 min after exposure to the tested solutions. In situ, 12 participants exposed enamel and root dentine slabs to the tested solutions simulating a beverage consumption; early erosion was assessed by percentage of surface hardness loss (%SHL). Groups were compared by ANOVA ( p  
ISSN:1436-3771
1432-6981
1436-3771
DOI:10.1007/s00784-022-04544-4