Evaluation of the clinical efficiency of rotary and manual files for root canal instrumentation in primary teeth pulpectomies: A comparative randomized clinical trial

Abstract

Aim: To evaluate and compare the instrumentation time, obturation time, quality of obturation, and clinical and radiological success of pulpectomized teethfollowing root canal preparation of primary molars with rotary and manual file system. Methods: A total of 150 primary molars requiring pulpectomy were selected from children aged four to seven years. These teeth were divided into three groups of 50 teeth each. In Groups 1, 2, and 3, cleaning and shaping were carried out with Kedo-S pediatric rotaryfiles, HERO Shaper rotary files, and manual NiTi K-files, respectively. Obturation was carried out with zinc oxide eugenol cement and an engine-driven Lentulo spiral. The instrumentation and obturation times were recorded. A radiographic assessment of thequality of the root filling was carried out immediately after obturation. Finally, the pulpectomized teeth were clinically and radiographically evaluated over a two-year period. Results: The mean instrumentation times for Groups 1, 2, and 3 were 14.56 ± 2.89 min, 17.93 ± 3.51 min, and 29.00 ± 2.08 min, respectively. The mean obturation times for Groups 1, 2, and 3 were 8.11 ± 1.7 min, 7.93 ± 1.3 min, and 9.64 ± 17.61 min, respectively. The mean difference in the quality of obturation was not statistically significant in primary molars instrumented with Kedo-S pediatricand HERO Shaper rotary file systems (p = 0.16). However, this mean difference was significant when compared between primary molar instrumented with rotary file systems and manual NiTi files (p = <0.001). At two years, the clinical success rate was 100% and the radiological success rates were 95.3%, 97.9%, and 89.5% in Groups 1, 2, and 3, respectively. Conclusions: The rotary file systems took significantly less instrumentation and obturation time than the manual NiTi files. There were no significant differences in obturation quality or success rates after two years.

Iatrogenic Incidents in Primary Molar Pulpectomy: A Case Series Report and Literature Review

“…The extrusion of filling materials beyond the root apex and file separation during primary tooth pulpectomy have the potential to cause inflammation and irritate the epithelial rest of the underlying permanent tooth, and can cause the development of an inflammatory cystic lesion in the permanent tooth germ [32][33][34]. Because these events can have an unfavorable effect, such as underdevelopment of the subsequent permanent tooth, the affected deciduous teeth should be extracted, and marsupialization should be performed on the inflamed area.…”

The effect of coronal pre-flaring and root canal irrigant on apex locators’ accuracy: an in-vitro study

“…29 The coronal preflaring of root canals provides many advantages during meticulous cleaning and shaping procedures, such as facilitating the insertion of manual and/or rotary files into the apical third of the root canals by removing cervical dentin interferences. 30 In addition, coronal flaring improved the flow of the irrigating solution within the root canal, minimizing the risk of bacterial invasion into the periapical tissue and reducing the risk of canal debris and irrigant extrusion during the root canal preparation procedure. 31,32 In recent years, a growing body of evidence has suggested a correlation between the type of root canal irrigating solution used and the success of coronal pre-flaring efficacy.…”

Farkli İrri̇gasyon Si̇stemleri̇ni̇n Kanal İçi̇ İlaçlarin Uzaklaştirilmasina Etki̇si̇ni̇n İncelenmesi̇

“…7 Intracanal medicaments used in RET cannot be completely removed from the root canal with current irrigation methods and solutions. 5,[8][9][10] A wide variety of techniques and irrigation solutions have been used to remove antibiotic paste from mature permanent tooth root canals. 11,12 However, there has been limited research attention on the removal of triple antibiotic paste from the root canal of immature teeth with different irrigation systems.…”