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Implant abutment using hand drivers versus torque wrench



Himani Singh1,*, Subhash Sonkesriya2, Bhumika J Patel3, Varsha Rathod4, Bharat Gupta5, Tarun Vyas6, Anshul Sawhney7 & Ramanpal Singh Makkad8



1Department of Oral Medicine and Radiology, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India; 2Department of Prosthodontics, Government College of Dentistry, Indore, M.P., India; 3Department of Oral Medicine and Radiology, Gujarat, India; 4Department of Periodontology, Bharati Vidyapeeth Dental College and Hospital, Navi Mumbai, India; 5Department of Periodontology, MGM Dental College, Navi Mumbai, India; 6Department of Oral Medicine and Radiology, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India; 7Department of Dentistry, MSDASMC Bahraich, India, 8Department of Oral Medicine and Radiology, New Horizon Dental college and Research institute, Bilaspur, Chhattisgarh, India; *Corresponding author; Communicated by Vini Mehta E-mail: vini.mehta@statsense.in



Himani Singh - E-mail: drhimanisingh15@gmail.com +919458525977

Subhash Sonkesriya- E-mail: drsubhashsonkesriya1978@gmail.com +919425347418

Bhumika J Patel- E-mail: bhumikapatel2687@gmail.com +917041239412

Varsha Rathod- E-mail: drvarshavora92@gmail.com +919821264693

Bharat Gupta- E-mail: guptabhar@gmail.com +919029975452

Tarun Vyas- E-mail:  tarunvyas14@gmail.com +917568348887

Anshul Sawhney- E-mail: dranshul1986@yahoo.co.in +917909062510

Ramanpal Singh Makkad- E-mail: drramanpal@gmail.com+919098699300


Article Type

Research Article



Received February 1, 2023; Revised February 28, 2023; Accepted February 28, 2023, Published February 28, 2023



The most frequent instrument used to begin tightening screws is a manually regulated screwdriver. Regarding manually regulated screwdrivers, predicted margins of error vary between fifteen percent to forty eight percent. Mechanical Torque restricting devices can consistently produce the requisite torques. As a result, devices like wrenches are needed to achieve the desirable values of torque. Hence, the present study was designed to evaluate the torque difference between handheld drivers and torque wrench and thereby its effect on the internal threads of implant surface.120 blocks was prepared from an autopolymerizing type of acrylic material each with a dimension of 1 inch. The centre of each block was affixed with analogue of dental impalnts with dimensions of  3.5 mm width and 13 mm length. With 60 specimens each, these models were split into two categories: hand torque specimens category and torque wrench specimens category. A stereomicroscope was used to look at the implant analog's internal threading architecture at a magnification of 100. At the bottom and top, four threads were spaced apart by a certain amount. Biowizard software was used for the assessment, and the results were recorded. Threads on the internal surface of dental implants were produced once more following torquing the implant's impression, and the stereomicroscope was used to quantify the separation between the 4 threads. Statistics were used to correlate the readings. All study participants' hand torque as well as torque wrench measurements were documented and statistical analysis was performed on them. When there was statistical analysis of the measurements then it was observed that mean values of torque in specimens included category of manual torque application was found out to be 33.6 6.510 Ncm. On the other hand the mean values of torque in specimens included in category of torque application by torque wrench were found out to be 33.57 3.472 Ncm. The outcome showed operator heterogeneity for both categories and operator variance when using a manual driver to generate torque. One independent - sample t test was used to contrast the mean data between the two categories, and P< 0.05 was chosen to determine whether the intergroup difference was meaningful. Because the torque values obtained with hand tightening were uneven, it may be concluded that different levels of hand torquing skill caused the torque to fluctuate. The torque wrench device displayed the desired torque data in the range that the manufacturer had advised. However, utilising manual drivers and a mechanical torque instrument did not cause any modifications to thread on the internal surface, and it rarely underwent significant deformation during the preliminary tightening torque readings. Thus, given that manually hand regulated drivers create a range of torques, it may be inferred that the employment of mechanical torque restricting instruments should be required.



Dental implants, abutment screw, hand drivers, internal thread, torque wrench.



     Singh et al. Bioinformation 19(2): 221-225 (2023)


Edited by

P Kangueane






Biomedical Informatics



This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.