Evaluation of Apically Extruded Debris Using Continuous Rotation, Reciprocation, or Adaptive Motion

Şen, Özgür Genç; Bilgin, Burcu; Koçak, Sibel; Sağlam, Baran Can; Koçak, Mustafa Murat

doi:10.1590/0103-6440201801967

Cited by 14 publications

(10 citation statements)

References 27 publications

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“…Data regarding apical extrusion of debris with the use of TF remains scarce. Even though the manufacturer claims that the instrument movement within the root canal is gentle for dentin and does not promote extrusion of debris, our study showed results that were similar to observations made by other teams [ 12 , 30 ], who observed higher values for extrusion when adaptive motion was used. Nevertheless, the amounts remain small and statistically insignificant.…”

Section: Discussionsupporting

confidence: 90%

Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

2021

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(1) Background: Apical extrusion of debris is an example of a complication that may arise during root canal treatment, and it has been proven to be an unavoidable occurrence during endodontic treatment by numerous authors. Even though it may not hinder the long-term outcome of treatment, it may lead directly to increased levels of postoperative pain and, therefore, lower levels of patient acceptance and satisfaction. The aim of the study was to assess the weight of apically extruded debris during root canal preparation with instruments that use different movement kinematics (rotary, reciprocating, and adaptive motion); (2) Methods: The study was performed using the Myers and Montgomery model. Sixty human premolar teeth were inserted into preweighed Eppendorf tubes and randomly classified into three groups. After manual glide-path preparation, teeth in each group were instrumented to working length set 1 mm short of the anatomical apex using the standard sequence provided by the manufacturers (for Group 1: ProTaper Next X1 & X2; for Group 2: WaveOne Gold Primary, for Group 3: Twisted Files SM1-SM3). Root canals were irrigated with 1 mL of 0.9% NaCl solution between each file insertion. The tubes with collected debris were stored in an incubator at 70 °C for 5 days in order to evaporate the liquid component. Measurement of the weight of extruded debris was performed by subtracting the preinstrumentation from the postinstrumentation weight of the tubes. The results were analyzed with Kruskal–Wallis ANOVA, with significance level set at 0.05; (3) Results: The weight of extruded debris was 0.337 mg (SD = 0.148) for Group 1, 0.305 mg (SD = 0.201) for Group 2, and 0.348 mg (SD = 0.135) for Group 3. (4) Conclusions: Engine-driven root canal preparation with the use of instruments ProTaper Next, WaveOne Gold and Twisted Files that use different movement kinematics (rotary, reciprocating, and adaptive motion) was associated with apical extrusion of debris to a similar extent.

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Section: Discussionsupporting

confidence: 90%

Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

2021

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“…Bidistilled water was used for the irrigation of root canal to avoid potentially misleading results from the crystallization of sodium hypochlorite. 32 The method proposed by Myers and Montgomery 20 was used to evaluate debris extrusion. This testing model did not include a material such as floral foam in the simulation of the resistance of periapical tissues.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Different Torque Settings on the Amount of Apically Extruded Debris During Rotary Instrumentation

Altunbaş

Toyoğlu

2020

Cumhuriyet Dental Journal

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Objectives: This in vitro study was designed to evaluate the effect of lowand high-torque settings on the amount of apically extruded debris during canal preparation with the ProTaper Universal (PTU) system. Materials and Methods: Forty extracted mandibular premolars were selected and randomly divided into two groups (n=20). Each root canal was prepared according to the manufacturer's instructions, using SX, S1, S2, F1, F2, and F3 at low-torque settings and high-torque settings. The apically extruded debris was collected into preweighed Eppendorf tubes. The weight of extruded debris was determined, and data were analyzed using the Mann-Whitney U test at a significance level of p<0.05. Results: No significant difference was observed between the groups (p>0.05). The PTU system produced the higher mean extrusion value at hightorque settings. Conclusions: Under the conditions of this study, as no difference among the different torque settings in terms of the amount of extruded debris were noted, it is possible to suggest that clinicians should choose the most appropriate settings for each case in clinical practice.

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“…Instrumentation techniques may possess a significant effect on post-operative pain (18). In the present study, only the rotary instrumentation with Protaper Next files was used, which result in a small extrusion of debris in the apical region (17) and could be related to the few reports of pain between the sessions.…”

Section: Endodontic Treatment In Young Molarmentioning

confidence: 93%

“…Becoming important to introduce the mechanical instrumentation the protocol using Ni-Ti files for undergraduate clinical training, all the teeth enrolled in this study were instrumented with Protaper Next® system, which has fast learning curve, good cyclic fatigue resistance (16). Additionally, fewer extrusion of apical debris has been observed with this protocol (17). Two years of clinical training significantly reduces the occurrence of inadequate obturation on treatments performed by dental students (7).…”

Section: Endodontic Treatment In Young Molarmentioning

confidence: 99%

Effect of Endodontic Sealer in Young Molars Treated by Undergraduate Students - A Randomized Clinical Trial

et al. 2020

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The progression of caries in permanent molar teeth of young patients, frequently result in endodontic treatment. This randomized blinded clinical trial assessed the effect of two endodontic sealers (Sealer 26 and AH Plus) on the incidence of pain and apical repair after endodontic treatment of young molar teeth, and secondly identify factors associated with the outcomes. Endodontic treatment was performed by undergraduate students in molar teeth (n=69) of young patients (n=54) at the Endodontic and Restorative Public Extension Clinic Service. Protaper Next was used and the endodontic sealers were allocated which were restored with direct composite resin. Two primary clinical outcomes - apical repair and postoperative pain, were assessed after 12 and 24 months for blinded operators. Description of incidence rates and mixed-model regression using Generalized Estimation Equations (GEE). After 2 years 69 molar teeth of 54 patients were evaluated. No effect of the endodontic sealer was observed irrespective of period of evaluation. Apical repair incidences and asymptomatic teeth were, respectively, 90.5 and 89.3, 96.8 and 90.0% during 1 and 2 years of follow-up. Failed apical repair was associated with unsatisfactory pulpectomy (p=0.003) and periapical conditions (p=0.007) as well as their interaction (p=0.016). None of these independent variables was able to predict the occurrence of pain in both periods. Prognosis of apical repair is dependent on the initial conditions. Endodontic treatment of young molars associated with composite resin restorations performed by undergraduate students have satisfactory results after 2 years and was effective to prevent the risk of permanent teeth loss.

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Evaluation of Apically Extruded Debris Using Continuous Rotation, Reciprocation, or Adaptive Motion

Cited by 14 publications

References 27 publications

Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

The Influence of Different Torque Settings on the Amount of Apically Extruded Debris During Rotary Instrumentation

Effect of Endodontic Sealer in Young Molars Treated by Undergraduate Students - A Randomized Clinical Trial

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