Influence of chlorhexidine and zinc oxide in calcium hydroxide pastes on pH changes in external root surface
Braz. oral res. (Online)
;
33: e005, 2019. tab
Article
Dans Anglais
| LILACS
| ID: biblio-989474
ABSTRACT
Abstract The objective of this study was to assess the influence of chlorhexidine (liquid and gel) and zinc oxide in calcium hydroxide (CH) pastes on root pH in simulated external resorption. One hundred human anterior teeth with a single root canal were selected. After decoronation and root canal instrumentation, the specimens were divided into 4 experimental groups and 1 control group (without intracanal paste) CH + saline (CH+S), CH + 2% chlorhexidine liquid (CH+ CHX), CH + 2% chlorhexidine gel (CH+ CHXg), and CH + 2% chlorhexidine gel + zinc oxide (CH+ CHXg+ZnO). pH was measured using a microelectrode at 3 and 24 h, and 1, 2, 3, and 4 weeks after inserting intracanal pastes. Data were analyzed statistically using an ANOVA and Tukey's test (p < 0.05). The CH+CHXg+ZnO group had the highest pH values throughout (p<0.05). The CH+S and CH+ CHX groups had the highest pH values after 1 week and the CH+ CHXg group after 2 weeks. CH+ CHXg maintained the highest pH until the fourth week compared with CH+ CHX (p < 0.05). The control group remained at a neutral pH at all evaluated times. It can be concluded that chlorhexidine solution or gel maintained the alkaline pH of CH, and chlorhexidine gel allowed a slower decrease in pH over time. CH+ CHXg+ZnO showed the highest pH values and was an effective intracanal medication for maintaining alkaline root pH in the area of resorption.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Liquides d'irrigation endocanalaire
/
Racine dentaire
/
Oxyde de zinc
/
Hydroxyde de calcium
/
Chlorhexidine
Type d'étude:
Études d'évaluation
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Braz. oral res. (Online)
Thème du journal:
Dentisterie
Année:
2019
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade Estadual de Campinas/BR
/
Universidade Federal da Paraiba/BR
/
Universidade Fedral da Paraíba/BR
/
Universidade do Estado do Rio de Janeiro/BR
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS