ProGlide Group Research Articles

A COMPARATIVE STUDY OF THE AMOUNT OF APICALLY EXTRUDED DEBRIS AFTER USING DIFFERENT TYPES OF GLIDE PATH FILES

INTRODUCTION: During root canal preparation; irrigants, dentin chips, pulp tissue and microorganisms may be extruded into the periradicular tissues which may cause postoperative pain and complications. OBJECTIVES: The aim of this study was to compare the amount of apically extruded debris in mesio-buccal canals of 30 extracted human mandibular molars instrumented with One-Shape file after preparing a proper glide path using G-files, ProGlider and K-files. MATERIALS AND METHOD: This study was conducted on the mesio-buccal roots of 30 human mandibular molars with curvature of 20 to 35 degrees. All specimens were divided into three groups according to the type of instrument used for glide path management. Group (1): manual instrumentation with K-files (#10, 15), Group (2): G-files: (G1: #0.12mm, G2: #0.17mm), and Group (3): ProGlider: single use rotary file. All teeth were instrumented using One-Shape file. Debris extruded apically from the teeth were collected into pre-weighed Eppendorf tubes. Three consecutive weights were obtained for each tube and the mean value was obtained. The weight of extruded debris was calculated as the difference between the pre and post instrumentation weights of the tubes. RESULTS: The highest amount of debris was found in the k-file group while the lowest amount with ProGlider group with significant differences between them. Moreover, significant difference was found between ProGlider and G -file while there was no significance between G-file and K -file groups. CONCLUSIONS: All techniques showed debris extrusion, although the use of NiTi rotary instruments may be rather beneficial.

In vitro comparison of the cyclic fatigue resistance of HyFlex EDM, One G, and ProGlider nickel titanium glide path instruments in single and double curvature canals.

ObjectivesIt was aimed to compare the cyclic fatigue resistances of ProGlider (PG), One G (OG), and HyFlex EDM (HEDM) nickel titanium glide path files in single- and double-curved artificial canals.Materials and Methods40 PG (16/0.02), 40 OG (14/0.03), and 40 HEDM (10/0.05) single-file glide path files were used in the present study. Sixty files were subjected to cyclic fatigue test by using double-curved canals and 60 files by using single-curved canal (n = 20). The number of cycles to fracture (NCF) was calculated and the length of the fractured fragment (FL) was determined by a digital micro-caliper. Twelve pieces of fractured files were examined with scanning electron microscope to determine fracture types of the files (n = 2). The NCF and the FL data were analyzed using one-way analysis of variance and post hoc Tukey test using SPSS 21 software (p < 0.05).ResultsIn all of the groups, NCF values were significantly lower in double-curved canals when compared to single-curved canals (p < 0.05). For both of single- and double-curved canals, NCF values of HEDM group in apical and coronal curvatures were found to be significantly higher than NCF values of PG and OG groups (p < 0.05). In both of single- and double-curved canals, NCF value of PG group was found significantly higher than OG group (p < 0.05).ConclusionsWithin the limitations of this study, HEDM glide path files were found to have the highest cyclic fatigue resistance in both of single- and double-curved canals.

Scouting Ability of 4 Pathfinding Instruments in Moderately Curved Molar Canals

IntroductionGlide path preparation has been recommended as a mandatory clinical step to ensure the safe usage of nickel-titanium (NiTi) rotary instruments. This study aimed to evaluate the effectiveness and fracture rate of 4 pathfinding NiTi rotary instruments in mechanically negotiating moderately curved molar canals. MethodsModerately curved maxillary (n = 120) and mandibular (n = 120) molars were randomly distributed into 4 experimental groups (n = 60, 30 maxillary and 30 mandibular molars) according to the instrument used for glide path preparation: ScoutRace 10/.02 (FKG Dentaire, La Chaux-de-Fonds, Switzerland) (800 rpm and 1-Ncm torque), ProDesign 25/.01 (Easy Equipamentos Odontológicos, Belo Horizonte, MG, Brazil) (350 rpm and 1-Ncm torque), Mtwo 10/.04 (VDW, Munich, Germany) (280 rpm and 1.2 Ncm torque), or ProGlider 16/.02 (Dentsply Maillefer, Ballaigues, Switzerland) (300 rpm and 5-Ncm torque). The instrument fracture rate and the absolute and percentage frequencies of molars in which the pathfinding instruments reached the full working length in all root canals according to tooth and canal types were recorded and statistically compared using the Pearson's chi-square test (α = 5%). ResultsThe highest and lowest frequency of reached the full working length canals were observed in the ScoutRace (68.3%) and ProDesign (38.3%) groups (P < .05), respectively, whereas the Mtwo (58.3%) and ProGlider (51.6%) groups showed intermediate results (P > .05). The ProGlider group showed the highest percentage frequency of instrument separation (11.6%) followed by the Mtwo (8.3%), ScoutRace (3.3%), and ProDesign (3.3%) groups (P < .05). ConclusionsScoutRace performed more efficiently and with less instrument breakage than the other systems. ProDesign was the least efficient, and ProGlider exhibited the highest rate of instrument breakage among the systems tested.

Debris extrusion by glide-path establishing endodontic instruments with different geometries

Background/purposeGlide-path preparation is an important step during initial endodontic procedure to reduce shaping-instrument fracture. The aim of this study was to evaluate the amount of apically extruded debris produced by glide-path preparation instruments with different geometric designs. Materials and methodsForty teeth extracted for periodontal reasons were randomly divided into four groups (n = 10). The working length was standardized at 17 mm from the apical foramen by a flattening reference point. The glide-path was created using repetitive up-and-down movement three times with one of following four selected instruments: One G, ProGlider, a size 15 ScoutRace, and a size 15 stainless-steel K-file. To collect the apically extruded debris, the customized apparatus was used, and the collected debris was stored in an incubator. The weight of the debris was measured using an analytical balance with an accuracy of 0.00001 g. The data were analyzed by one-way analysis of variance and Duncan's multiple comparison test at a significance level of 95%. ResultsThe ProGlider group produced significantly less debris extrusion relative to the other groups (P < 0.05). The One G and ScoutRace groups showed no significant difference, but debris production was lower than that observed for the stainless-steel group (P < 0.05). ConclusionCreating the glide-path using nickel-titanium rotary files produced lower amounts of debris extrusion than using manual stainless-steel files. The progressive taper design of ProGlider, the center-off cross-section of One G, and the alternative-pitch design of ScoutRace may have increased the efficiencies of debris removal with minimal extrusion during glide-path preparation. Glide-path preparation using NiTi rotary files have better clinical efficiency than the manual stainless-steel file.

Feasibility and clinical benefit of a suture-mediated closure device for femoral vein access after percutaneous edge-to-edge mitral valve repair

We assessed feasibility, efficacy and safety of a suture-mediated closure device, Perclose Proglide (Abbott Vascular Devices, Santa Clara, CA, USA), for closure of the femoral vein access after percutaneous MitraClip (Abbott Vascular Devices) implantation. Venous access of 80 consecutive patients undergoing percutaneous mitral valve repair using the MitraClip device was managed either by manual compression, "figure eight" suture and compression bandage for 12 hours, or by applying the Proglide device for haemostasis after the procedure (40 patients each group). Patients with Proglide closure showed complete immediate haemostasis in 92.5% (37/40) and were immobilised with a compression bandage for only four hours. In the Proglide group, one arteriovenous fistula was observed and had to be treated by vascular surgery. The overall duration of stay on an intensive care unit was significantly reduced in the Proglide group (59.4±48.9 hours vs. 84.6±59.5 hours, p<0.005). Using a suture-mediated closure device for the femoral vein after percutaneous MitraClip implantation is feasible and safe. This allows earlier patient mobilisation and may reduce post-interventional duration of stay on an intensive care unit.

Energy Consumption of ProTaper Next X1 after Glide Path with PathFiles and ProGlider

IntroductionInstrument failure caused by excessive torsional stress can be controlled by creating a manual or mechanical glide path. The ProGlider single-file system (Dentsply Maillefer, Ballaigues, Switzerland) was recently introduced to perform a mechanical glide path. This study was designed to compare the effect of a glide path performed with PathFiles (Dentsply Maillefer) and ProGlider on torque, time, and pecking motion required for ProTaper Next X1 (Dentsply Maillefer) to reach the full working length in simulated root canals. MethodsForty Endo Training Blocks (Dentsply Maillefer) were used. Twenty were prepared with a mechanical glide path using PathFiles 1 and 2 (the PathFile group), and 20 were prepared with a mechanical glide path using a ProGlider single file (the ProGlider group). All samples were shaped with ProTaper Next X1 driven by an endodontic motor connected to a digital wattmeter. The required torque for root canal instrumentation was analyzed by evaluating the electrical power consumption of the endodontic engine. Electric power consumption (mW/h), elapsed time (seconds), and number of pecking motions required to reach the full working length with ProTaper Next X1 were calculated. Differences among groups were analyzed with the parametric Student t test for independent data (P < .05). ResultsElapsed time and electric power consumption were significantly different between groups (P = .0001 for both). ProGlider appears to perform more efficiently than PathFiles in decreasing electric power consumption of ProTaper Next X1 to reach the full working length. ConclusionsThis study confirmed the ability of ProGlider to reduce stress in ProTaper Next X1 during shaping through a glide path and preliminary middle and coronal preflaring.

Comparison of closure strategies after balloon aortic valvuloplasty: Suture mediated versus collagen based versus manual

To compare complication rates of a collagen-mediated closure device, suture-mediated closure technique and manual compression for access site management following balloon aortic valvuloplasty (BAV). Vascular complications, including perforation, limb ischemia, ateriovenous fistulas, and pseudoaneurysm, are a common source of morbidity in patients undergoing BAV with large bore femoral artery access. The available options for closure of the access site include manual compression, suture-mediated closure devices, and recently reported collagen-based closure devices. The study cohort consisted of 333 patients with severe aortic stenosis undergoing BAV. Patients were divided into four groups according to access closure method: (1) Manual compression in 64 (19.2%); (2) Proglide 6 Fr in 162 (48.6%); (3) Angio-Seal 8 Fr in 89 (26.75%); and (4) Prostar 10 Fr in 18 (5.4%). There were no significant differences in baseline characteristics among the groups; although the Prostar group was had more males and the Angio-Seal group reported a lower incidence of renal failure and peripheral vascular disease. The Angio-Seal group had shorter procedural duration times compared with the other groups. In the Angio-Seal group (n = 47, 52.8%), a 10 Fr sheath size was primarily used to access the femoral artery, as compared with the manual compression and Proglide groups, which used a 12 Fr sheath in 29 (45.3%) and 66 patients (40.7%), respectively. A 13 Fr sheath was used in the Prostar group (n = 11, 61.1%), P < 0.001. The device failure rate was significantly higher in the Proglide group (n = 20, 12.3%) as compared with Angio-Seal (n = 3, 3.3%) and Prostar groups (n = 1, 5.5%), P = 0.03. Serious vascular complications requiring intervention were significantly higher in the manual compression group (n = 11, 17.1%) compared with the Proglide (n = 11, 6.7%), Angio-Seal (n = 5, 5.6%), and Prostar groups (n = 5, 1%), P < 0.001. The requirement for blood transfusion in the Angio-Seal group was significantly lower (n = 7, 7.8%) as compared with the manual compression (n = 20, 31.2%), Proglide (n = 35, 21.6%), and Prostar groups (n = 5, 27.7%), P < 0.001. In our case series, collagen-based closure devices and suture-mediated closure devices had fewer vascular complications than manual compression for hemostasis following BAV. Patient selection for collagen-based versus suture-mediated closure requires further study.