A smart rotary technique versus conventional pulpectomy for primary teeth: A randomized controlled clinical study

Comparative Evaluation of Instrumentation Time and Quality of Obturation amongst Pediatric Rotary Endodontic System: An In Vivo Study

Aim

This study assesses the instrumentation time and quality of obturation of three pediatric rotary endodontic systems-GT nickel-titanium (NiTi) (Prime Pedo), controlled memory (CM) NiTi (Pro-AF-Baby Gold) and NiTi-titanium oxide (NiTi-TiO) (Kedo SG Blue).

Materials and methods

A total of 60 children aged 4-8 were chosen at random for the study based on inclusion criteria that required pulpectomy in any of the primary molars and were separated into three groups of 20 samples, each based on the file system employed. The instrumentation time during the preparation of the canal is recorded using a stopwatch. An expert dentist was blinded to the instrumentation type and showed the periapical radiograph, which he or she graded depending on the quality of the obturation by categorizing it as underfill, optimal fill, or overfill. The observations were then recorded, tabulated, and statistically analyzed for the results.

Results

The least amount of instrumentation time was needed for NiTi-TiO (group III) files, followed by NiTi-CM (group II) and NiTi-GT (group I). NiTi-TiO (group III) has the most optimally filled and least underfilled obturations among the three rotary endodontic systems mentioned. Also, NiTi-TiO (group III) and NiTi-CM (group II) have the least similar overfilled obturations when compared with NiTi-GT (Group I).

Conclusion

We conclude that NiTi-TiO needed the least amount of instrumentation time and generated the maximum optimally filled obturations based on our observations.

Clinical significance

Pediatric rotary endodontic systems are more convenient to use and reduce chairside time; thus, their use in children with behavior control issues might be more suitable.

How to cite this article

Kohli A, Chhabra J, Sharma K, et al. Comparative Evaluation of Instrumentation Time and Quality of Obturation amongst Pediatric Rotary Endodontic System: An In Vivo Study. Int J Clin Pediatr Dent 2023;16(2):338-343.

Modified Conventional Root Canal Shaping Technique in Primary Teeth: An In Vivo Study

Aim and objective

The purpose of the study was to compare the efficiency of modified conventional root canal shaping technique versus conventional shaping technique in primary teeth.

Materials and methods

A total of 184 primary root canals (2 groups of 92 canals each) with two-thirds of root length were selected and randomly allocated into two different shaping techniques, i.e., Group I: conventional root canal shaping technique, Group II: modified root canal shaping technique. The quality of obturation (Coll and Sadrain, 1996) and presence or absences of voids were assessed by using radiographs. The recorded data was statistically analyzed.

Results

Significant difference was seen between conventional and modified conventional techniques in underfilled and optimally filled canals.

Conclusion

This modified cleaning and shaping technique can be considered as alternative to conventional instrumentation technique, as it improves quality of obturation and decreases the number of voids.

How to cite this article

Reddy ER, Raju SS, Sandipamu T, et al. Modified Conventional Root Canal Shaping Technique In Primary Teeth: An In Vivo Study. Int J Clin Pediatr Dent 2022;15(S-1):S8-S11.

Rotary versus Manual Instrumentation for Root Canal Preparation in Primary Teeth: A Systematic Review and Meta-Analysis of Clinical Trials

Objectives

The aim of this systematic review was to assess the scientific evidence on the effect of rotary versus manual instrumentation for root canal preparation in primary teeth.

Materials and Methods

Search terms were selected based on Medical Subject Headings (MeSH) and non-MeSH terms. Electronic database search of English published literature was performed in March 2020 within the following databases: Scopus, Cochrane, PubMed, and Embase. The risk of bias of selected studies was assessed by means of Cochrane collaboration tool. The heterogeneity level among the included studies was measured by I ² index. For statistical analysis of instrumentation time, standard mean difference (SMD) of continuous data was analyzed with 95% confidence intervals (95% CIs) using the fixed-effects model. A random-effects model was used for analysis of odds ratio (OR) to assess the probability of optimal fill, underfill, and overfill obturations. Forest plots were applied to show the results and to estimate the effectiveness of rotary instrumentation.

Results

Seven articles were selected for this review. The SMD in rotary techniques was 1.79 min less than manual techniques (95% CI: -2.56--1.03 min) and had a significant P = 0.001. The OR of optimum quality was calculated to be 3.53 (95% CI: 1.79-6.97) in the rotary technique at P = 0.254.

Conclusions

Within the limitations of this review, it can be asserted that rotary files decrease the instrumentation time and increase the rates of optimally filled canals in primary teeth. However, these files do not decrease the risk of underfilling and overfilling compared to manual files.

Technology Incorporation in Primary Teeth Endodontics: Case Reports

Background

Radical pulp therapy is an important and a relatively frequent procedure in pediatric dental offices.

Aim

This study presents two clinical cases of pulpectomies in deciduous teeth using electronic apex locator and rotary instrumentation.

Case descriptions

In Case 1, pulpectomy was performed in a deciduous incisor with diagnosis of pulp necrosis in a 3-year-old patient using an electronic apical locator and manual instrumentation. In Case 2, it was performed in a primary molar with diagnosis of irreversible acute pulpitis in a 9-year-old patient with the use of electronic apical locator and rotational instrumentation. The used technologies contributed to favorable final result of the endodontic treatments in deciduous teeth in both cases.

Conclusion

The incorporation of technology to the endodontic treatment of primary teeth favored the gain of time and conicity of the root canal preparation. However, studies still need to be performed to consolidate the technique.

Clinical significance

Endodontic treatment of primary teeth still generates much discussion about the materials and techniques employed. The use of electronic apical locator and rotational instrumentation is successful treatment alternatives for teeth with pulp necrosis, with the advantage of limiting clinical time and presenting a favorable outcome.

How to cite this article

Gomes LAS, Oliveira AA, de Campos Neves ATS, et al. Technology Incorporation in Primary Teeth Endodontics: Case Reports. Int J Clin Pediatr Dent 2020;13(2):180–185.