جستجوی مقالات مرتبط با کلیدواژه "obturation material" در نشریات گروه "پزشکی"

This case report highlights the successful management of a cystic apical lesion associated with root resorption through nonsurgical endodontic retreatment, utilizing calcium-enriched mixture (CEM) cement as an obturating biomaterial. A 35-year-old woman presented with mild discomfort in the mandibular right first molar (#46), with radiographic evidence of a well-defined radiolucent lesion at the apex of the mesial root. The tooth had a history of previous failed endodontic treatment with poor root canal obturation, indicating internal root resorption. Nonsurgical endodontic retreatment was performed, and the canals were filled/sealed with CEM cement. Follow-up radiographs showed a gradual reduction in the size of the cystic lesion. At 54 months, complete bone healing of the cystic apical lesion was evident. This case report provides clinical evidence supporting the potential efficacy of nonsurgical endodontic retreatment using CEM cement in managing certain cystic apical lesions, offering a promising alternative to traditional surgical enucleation, even in cases with inflammatory root resorption. Further research is needed to validate the long-term efficacy of this approach in larger patient populations.

We aimed to compare solubility between zinc oxide eugenol and zinc oxide eucalyptus.

One hundred and twenty standardized plastic ring molds were constructed and filled with zinc oxide eugenol and zinc oxide eucalyptus. The specimens were allowed to dry for 24 hours and then weighed to the nearest 0.0001 g. Then divided randomly into three groups and immersed in distilled water for 1, 7, and 21 days. Then samples were removed from the solution and allowed to dry for 24 hours. Then they were weighed again, the percentage of weight loss was then determined as solubility. Data analyzed by two-way repeated measures ANOVA and the Tukey’s post-hoc test using MedCalc 20.104.

Zinc oxide eucalyptus solubility is more than zinc oxide eugenol. All tests of between-subjects effects and withinsubjects effects showed statistically significant differences (P < 0.001).

The 1st day results showed solubility of not more than 3% following storage in distilled water which meet the requirements of ISO 6876, where both zinc oxide-eugenol (ZOE) (0.05%) and zinc oxide eucalyptus (0.15%) satisfied these criteria.