An interventional study of use of VDW Silver Endodontic motor in Dental Pulp Necrosis, sponsored by Afyonkarahisar Health Sciences University. Not yet recruiting at 1 site in Turkey. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-03-13.
Sponsored by Afyonkarahisar Health Sciences University · Not applicable, Interventional, and Treatment
Among 20 studies in Dental Pulp Necrosis with a site in Turkey — 3 open to participants now, 5 under way, none of them phase 3. Dental Pulp Necrosis · Turkey.
Among the 20 studies in Dental Pulp Necrosis with a site in Turkey, this one is the 6th largest by planned enrollment of the 15 interventional ones that give a count, is one of 8 that started in 2024, is one of 14 with no phase, and was the 6th registered.
157 studies on the registry are indexed under Dental Pulp Necrosis; 44 are open to participants now.
Browse Dental Pulp Necrosis studies →3 of the 20 studies in Dental Pulp Necrosis with a site in Turkey are open now. Recruiting first, the newest first:
ESRA DAĞCI · Sites in Turkey
Ages 18+ · Healthy volunteers
TC Erciyes University · Sites in Turkey
Ages 18–45
A study can be open while its sites in Turkey have not opened yet or have stopped. Only those recruiting at a site in Turkey →
Of the 15 Dental Pulp Necrosis studies recruiting now, 6 (40%) set no upper age limit and 7 (47%) stop at 75 or younger; 4 take children under 18; 5 take healthy volunteers.
This study: 18 Years to 65 Years · all sexes · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
20 studies; the count open now beside each. This study's row is marked.
First in 2017; this study’s year is marked. 8 started in 2024.
This study's planned enrollment of 80 is above the median of 45 across 148 interventional studies indexed under Dental Pulp Necrosis.
Median enrollment 64 across the 15 interventional studies, 60 across the 5 observational. Of the 14 that completed or were terminated, 0 (0%) have results posted.
This tab as a report to print or save as PDF → With an account.
None of the 20 has an industry lead sponsor. The 10 most frequent:
Afyonkarahisar Health Sciences University is the lead sponsor of 115 studies on the registry; 32 are open to participants now.
Afyonkarahisar Health Sciences University has 1 study filed under Dental Pulp Necrosis — fewer than ten, so there is no comparison to draw.
1 of the studies in Dental Pulp Necrosis with a site in Turkey that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07867314Recep Tayyip Erdogan UniversityEffect of Apical Patency on Periapical Lesion Healing | 2026-11-27 |
Add it to your calendar (.ics) → With an account.
Among the 20 studies in Dental Pulp Necrosis with a site in Turkey, from their registry updates:
This tab as a report to print or save as PDF → With an account.
Root canal preparation is one of the most important stages in root canal treatment. Nowadays, the use of Nickel-Titanium(Ni-Ti) rotary instrument systems for root canal expansion is becoming very popular. The force required to rotate the Ni-Ti file is defined as the torque force and is considered a parameter for the stress produced within the canal. Ni-Ti rotary instruments can be used with a wide speed scale between 150 rpm (rotary per minute) and 40,000 rpm in conventional endodontic engines.
Low torque and speed values mean low pressure applied by the instruments in the root canal. With low forces and vibrations, motor noise is generally negligible, and the instruments can easily shape most root canals in a reasonable amount of time and with minimal mechanical stress (in medium-easy canals). The use of lower torque values has been shown to reduce cyclic fatigue of Ni-Ti rotary tools. With reduced cyclic fatigue, the risk of instrument breakage in complex root canal morphologies is minimized and complications that may occur during root canal treatment are reduced. However, with low torque and speed values, cutting efficiency decreases and the process time increases as the instrument advances in the canal and during possible treatment. Decreasing cutting efficiency may also result in the operator applying force to move through the canal. With the applied force, the friction resistance within the canal increases and the heat produced increases. For this reason, it is thought that the risk of post-operative pain may increase during or after the procedure.
The aim of this study is to investigate the incidence of post-operative pain and procedure time using the visual analog scale (VAS) among groups where low torque and speed values were applied during the use of the Ni-Ti rotary instrument system.
Patients with an indication for root canal treatment of the mandibular first molar tooth, who applied to Faculty of Health Sciences, Department of Endodontics, were selected. Patients aged between 18 and 65, who volunteered for the study and had no systemic disease and no preoperative pain, were included.
Patients meeting the inclusion criteria will be randomly divided into four groups (n=20) using a website (www.randomizer.org). The patient number and the randomized group from which the patient was selected will be recorded. All patients will be subjected to local anesthesia with articaine hydrochloride (Maxicaine, Istanbul) containing 1:100,000 adrenaline. After the entrance cavities of the teeth are opened with an aerator under water cooling, a rubber dam will be applied to the relevant teeth for isolation from the oral environment. After the entrance cavity is opened, the working length of the canals will be determined with the help of a No. 10 K-file (Dentsply Maillefer, Ballaigues, Switzerland) canal file and an electronic apex finder (Woodpex III, Woodpecker Medical Instrument Co, Guilin, China). In both groups, it was planned to use the NiTi rotary instrument system using V Taper Gold (Fanta Dental Material, Shanghai, China) files with the help of VDW.Silver endomotor (VDW, München, Germany). The patient groups were determined as the first group was 2N torque value and 350 rpm speed, the second group was 2N torque and 250 rpm speed, the third group was 1N torque and 350 rpm speed, and the fourth group was 1N torque and 250 rpm speed. The torque values to be applied are lower than the values recommended by the manufacturer and there is no harm in applying them in the literature. For irrigation of root canals, 2ml of 2.5% sodium hypochlorite will be used at each instrument change. For final irrigation, 17% EDTA( ethylenediaminetetraacetic acid) solution will be used. Root canals will be dried using sterile paper points. The root canals will be filled using gutta percha and a resin-containing root canal sealer (Dentsply Maillefer, Ballaigues, Switzerland) and the treatment will be completed by making the upper restoration. After the treatment, patients were given a VAS scale (Visual Analog Scale) and were instructed how to fill in their pain levels verbally and visually, 6, 12, 48, 72 hours and 1 week later. With the VAS scale, patients will be asked to note whether they use the prescribed Ibuprofen analgesic and the frequency of use. When patients come to their follow-up appointment, the forms will be taken from the patients and their post-treatment pain values will be compared. The collected data will be analyzed statistically with one-way ANOVA and post hoc Tukey tests.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
The values specified in the endomotor will be used during root canal treatment. 1 N torque, 250 rpm speed
Device: use of VDW Silver Endodontic motor
The values specified in the endomotor will be used during root canal treatment. 1 N torque, 350 rpm speed
Device: use of VDW Silver Endodontic motor
The values specified in the endomotor will be used during root canal treatment. 2 N torque, 250 rpm speed
Device: use of VDW Silver Endodontic motor
The values specified in the endomotor will be used during root canal treatment. 2 N torque, 350 rpm speed
Device: use of VDW Silver Endodontic motor
All patients will be subjected to local anesthesia with articaine hydrochloride (Maxicaine, Istanbul) containing 1:100,000 adrenaline. After the entrance cavities of the teeth are opened, a rubber dam will be applied to the relevant teeth for isolation from the oral environment. After the entrance cavity is opened, the working length of the canals will be determined with the help of a No. 10 K-file (Dentsply Maillefer, Ballaigues, Switzerland) canal file and an electronic apex finder (Woodpex III, Woodpecker Medical Instrument Co, Guilin, China). In both groups, it was planned to use the NiTi rotary instrument system using V Taper Gold (Fanta Dental Material, Shanghai, China) files with the help of VDW.Silver endomotor (VDW, München, Germany). The endodontic motor will be used to adjust different speed and torque values during root canal treatment. Post-operative pain caused by different speed and torque values will be compared.
Visual analog scale
The patient was asked to mark the severity of his or her pain with active motion on a horizontal line 100 mm in lenght. The intensity of the pain was calculated by measuring the area in which the individual marked between 0 (no pain) and 10 (the most severe pain I felt my life)
Time frame: through study completion, an average of 1 month
Preparation time
While shaping the root canals at the specified values, the working time (second) will be measured with the help of a stopwatch.
Time frame: through study completion, an average of 1 month
Plan to share: No
No publications or documents are linked to this record.
Start is estimated for Mar 2024; primary completion for Mar 2024, 0 months later.
Of 66 non-industry interventional studies with no phase under Dental Pulp Necrosis, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 35. This study's planned 0 months is below that.
Counting every sponsor, half of 67 studies reached it within 15 months; a quarter within 9 and three quarters within 31.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Afyonkarahisar Health Sciences University →