Differences in fracture resistance after root canal irrigation using guava leaf extract (Psidium guajava L.) and lime juice (Citrus aurantifolia)

After root canal treatment, teeth are at higher risk of fracture than vital teeth; the cause is multifactorial, both iatrogenic and non-iatrogenic. Guava often usedbecause leaves have been proven to treat various diseases. contain active ingre-dients, including tannins, flavonoids, essential oils saponins.Lime processed by community as a fresh drink, such warm lime juice. Lime fruit has useful ingredients oils, citric acid, amino acids saponins. The aim this study was analyze differences in resistance after irrigation between 60% GL extract 100% This laboratory experiment using extracts GL, LJ, maxillary central incisor with post-test only control group design, which tested statistically one-way Anova followed post hoc test. Fracture averaged 45.07±9.80; while LJ is40.86±12.71; differ 4,280. It concluded that there no significant difference degree LJextract groups irriga-gation materials.