RESUMO
Context: There is a possibility of dentinal crack formation in primary teeth after root canal preparation using rotary files. Aims: To evaluate and compare the effect of ProTaper-Gold and Kedo-S rotary files on crack formation after root canal preparation in primary molars. Settings and design: A total of 120 freshly extracted mandibular primary molars (6-9 years) were randomly divided into three groups of 40 each: ProTaper-Gold, Kedo-S, and Hand H-files, respectively. Materials and methods: The roots were covered with a snuggly fitting surgical glove and stabilized in the teeth slot of a silicone mold of mandibular mixed dentition. Dental casts were obtained in a mixture of plaster of paris and sawdust. A screw system was incorporated in the cast for stabilization of the cast into the phantom head. All the root canals were instrumented in a standard operating position till 1 mm short of the radiographic apex. All roots were then stained and sectioned perpendicular to the long axis at the furcation level and 2 mm below the furcation to obtain one section per tooth. Sections were examined under a stereomicroscope at 25× magnification for any crack formations and recorded. Data were analyzed using Wilcoxon signed-rank and Kruskal-Wallis tests (p = 0.05). Results: The total number of cracks in terms of percentage following the use of ProTaper Gold, Kedo-S, and H-files were 35, 10, and 0%, respectively, on the upper surface and 15, 5, and 0% on the lower surface. Within the group, there was a statistically significant difference in ProTaper-Gold (p = 0.001). Conclusion: The use of ProTaper-Gold resulted in a greater number of dentinal cracks compared to Kedo-S and H-files. How to cite this article: Patil MB, Mandroli PS, Jalannavar P, et al. Dentinal Microcracks after Root Canal Preparation in Primary Root: An In Vitro Evaluation of ProTaper Gold and Kedo-S Rotary File Systems. Int J Clin Pediatr Dent 2023;16(5):692-697.
RESUMO
AIM: To report the surgical complications of Ascaris lumbricoides infestation in children. MATERIALS AND METHODS: This is a retrospective study and cases of intestinal ascariasis managed conservatively were excluded. RESULTS: Sixteen children presented with Ascariasis sequelae, which included ileal volvulus (n=5), perforations (n=4), intussusception (n=1), biliary ascariasis (n-1) and impacted multiple worm boluses (n=5). Plain abdominal radiographs showed pneumoperitoneum (3), cigar bundle appearance (3) and multiple air and fluid levels (13). Sonography showed floating worms with free fluid (2), sluggish peristalsis and moderate free fluid (7) and intestinal worm bolus (11). The surgical procedures included milking of worms (in all), bowel resection (6), closure of perforation (3) and manual reduction of intussusception (1). Biliary ascariasis was managed conservatively and the progress monitored with sonography. There were 3 deaths all of whom had intestinal volvulus, bowel necrosis and toxemia. CONCLUSION: Sonography can be helpful in diagnosing the presence of worms, its complications and in evaluating response to treatment. Early surgical intervention in those with worm bolus, peritonism, and volvulus may salvage bowel and reduce mortality.
