The relationship of implant stability quotient and insertion torque in dental implant stability

Main Article Content

Ali T Noaman
Salwan Y Bede


Background: The insertion torque (IT) values and implant stability quotient (ISQ) values are the measurements most used to assess primary implant stability. This study aimed to assess the relationship between ISQ values and IT. Materials and methods: This study included 24 patients with a mean (SD) age of 47.9 (13.64) years (range 25-75 years). The patients received 42 dental implants (DI), 33 in the mandible and 9 in the maxilla. The DI were installed using the motorized method with 35 Ncm torque, When DI could not be inserted to the requisite depth by the motorized method, a hand ratchet was used and the IT was recorded as ˃ 35 Ncm. Implant stability was measured utilizing Osstell® ISQ. The secondary stability was measured after 16 weeks postoperatively.Results: The DI installed in mandible demonstrated significantly higher primary stability ISQ values than those installed in maxilla (P=0.0101). There was no such significant correlation linked between the secondary stability and the recipient jaw (P=0.2026). A non-significant correlation was found between the primary and secondary implant stability ISQ values and IT (P=0.2785 and 0.4194, respectively). No significant difference was reported regarding the IT relative to the recipient jaw of DI (P=0.1349).Conclusion: This study demonstrated that there was no relationship between the ISQ values and the IT, and that they should be used independently. DI installed in mandible demonstrated significantly higher primary stability ISQ values than those installed in maxilla. Also, there was a non-significant correlation of the secondary stability and IT with the recipient jaw.

Article Details

How to Cite
Noaman AT, Bede SY. The relationship of implant stability quotient and insertion torque in dental implant stability. J Bagh Coll Dent [Internet]. 2022 Mar. 15 [cited 2022 May 28];34(1):29-35. Available from:
Research Articles


Turkyilmaz I, Tözüm TF, Tumer C. Bone density assessments of oral implant sites using computerized tomography. J Oral Rehabil. 2007;34(4):267–72.

Mesa F, Muñoz R, Noguerol B, et al. Multivariate study of factors influencing primary dental implant stability. Clin Oral Implants Res. 2008;19(2):196–200.

Sennerby L. MN. Implant stability measurements using resonance frequency analysis : biological and biomechanical aspects and clinical implications. Periodontol 2000. 2008;47:51–66.

Meyer U, Joos U, Mythili J, et al. Ultrastructural characterization of the implant/bone interface of immediately loaded dental implants. Biomaterials. 2004;25(10):1959–67.

Sachdeva A, Dhawan P, Sindwani S. Assessment of Implant Stability: Methods and Recent Advances. Br J Med Med Res. 2016;12(3):1–10.

Lages FS, Douglas-de Oliveira DW, Costa FO. Relationship between implant stability measurements obtained by insertion torque and resonance frequency analysis: A systematic review. Clin Implant Dent Relat Res. 2018;20(1):26–33.

Lozano-Carrascal N, Salomó-Coll O, Gilabert-Cerdà M, et al. Effect of implant macro-design on primary stability: A prospective clinical study. Med Oral Patol Oral Cir Bucal. 2016;21(2):e214.

Levin BP. The correlation between immediate implant insertion torque and implant stability quotient. Int J Periodontics Restor Dent. 2016;36(6):833–40.

Meredith N, Alleyne D, Cawley P. Quantitative determination of the stability of the implant-tissue interface using resonance frequency analysis. Clin Oral Implants Res. 1996;7(3):261–7.

Jaramillo R, Santos R, Lázaro P, et al. Comparative analysis of 2 resonance frequency measurement devices: Osstell Mentor and Osstell ISQ. Implant Dent. 2014;23(3):351–6.

Degidi M, Daprile G, Piattelli A. Primary stability determination of implants inserted in sinus augmented sites: 1-step versus 2-step procedure. Implant Dent. 2013;22(5):530–3.

Farré-pagès N, Augé-castro ML, Alaejos-algarra F, et al. Relation between bone density and primary implant stability. Med Oral Patol Oral Cir Bucal. 2011;16(1):62–7.

Salimov F, Tatli U, Kürkçü M, et al. Evaluation of relationship between preoperative bone density values derived from cone beam computed tomography and implant stability parameters: A clinical study. Clin Oral Implants Res. 2014;25(9):1016–21.

Di Stefano DA, Arosio P, Pagnutti S, et al. Distribution of Trabecular Bone Density in the Maxilla and Mandible. Implant Dent. 2019;28(4):340–8.

Strub Jr, Jurdzik Ba, Tuna T. Prognosis of immediately loaded implants and their restorations: a systematic literature review. J Oral Rehabil. 2012;39(9):704–17.

Song Y-D, Jun S-H, Kwon J-J. Correlation between bone quality evaluated by cone-beam computerized tomography and implant primary stability. Int J Oral Maxillofac Implants. 2009;24(1):59–64.

Merheb J, Vercruyssen M, Coucke W, et al. Relationship of implant stability and bone density derived from computerized tomography images. Clin Implant Dent Relat Res. 2018;20(1):50–7.

Al-Jamal MFJ, Al-Jumaily HA. Can the Bone Density Estimated by CBCT Predict the Primary Stability of Dental Implants? A New Measurement Protocol. J Craniofac Surg. 2021;32(2):e171–4.

Youssef M, Shaaban AM, Eldibany R. the Correlation Between Bone Density and Implant Stability. Alexandria Dent J. 2015;40(1):15–21.

Gómez-Polo M, Ortega R, Gómez-Polo C, et al. Does Length, Diameter, or Bone Quality Affect Primary and Secondary Stability in Self-Tapping Dental Implants? J Oral Maxillofac Surg. 2016;74(7):1344–53.

Degidi M, Daprile G, Piattelli A. Primary stability determination by means of insertion torque and RFA in a sample of 4,135 implants. Clin Implant Dent Relat Res. 2012;14(4):501–7.

Açil Y, Sievers J, Gülses A, et al. Correlation between resonance frequency, insertion torque and bone-implant contact in self-cutting threaded implants. Odontology. 2017;105(3):347–53.