transparent gif


Ej inloggad.

Göteborgs universitets publikationer

Dental plaque pH and ureolytic activity in children and adults of a low caries population

Författare och institution:
Linnea Appelgren (Institutionen för odontologi); Anna Dahlen (Institutionen för odontologi); Cecilia Eriksson (Institutionen för odontologi); N. Suksuart (-); Gunnar Dahlén (Institutionen för odontologi)
Publicerad i:
Acta Odontologica Scandinavica, 72 ( 3 ) s. 194-201
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
Objectives. The aim of this study was to evaluate the plaque pH level and ureolytic activity among children and adults of Karen Hill tribes. Methods. Thirty-four children aged 6-10 years and 46 adults aged 20-38 years were interviewed regarding oral hygiene practices, sucrose intake and betel chewing. Caries experience (DMFT and DT), calculus, bleeding on probing (BoP) and Plaque index (PlI) were registered. Ureolytic activity in supragingival plaque was tested at two interproximal sites (11/12 and 41/42) with the rapid urease test (RUT). Registration of plaque pH was performed at two interproximal sites (15/ 16 and 31/41) before, during and 30 min after rinsing with an urea solution (0.25%). Four interproximal plaque samples (one from each quadrant) per individual were collected to test the bacterial composition using the checkerboard technique. Results. Children and adults had similarly low DMFT and DT values. Children had a higher baseline pH and a higher ureolytic activity in the maxilla (p < 0.05) compared with adults. A significant correlation (r(2) = 0.63) was found between baseline pH and urease activity in the mandibular anterior teeth. Caries-free individuals had a higher baseline pH compared with caries active individuals in the anterior mandibular region (p < 0.01). The microbiological composition was characterized by an anaerobic low acidiogenic microbiota. Conclusions. Dental plaque pH is related to the ureolytic activity, which explains the low acidogenic plaque microflora and the low caries levels in the Karen population.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Klinisk medicin ->
calculus, caries, Karen population, oral microflora, pH, ureolytic activity, DNA-DNA HYBRIDIZATION, ORAL BACTERIA, STREPTOCOCCUS-MUTANS, CALCULUS, DISEASE, INVITRO, UREA
Postens nummer:
Posten skapad:
2014-04-25 15:28

Visa i Endnote-format

Göteborgs universitet • Tel. 031-786 0000
© Göteborgs universitet 2007