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Open AccessArticle

Deformation of the Internal Connection of Narrow Implants after Insertion in Dense Bone: An in Vitro Study

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Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794-8712, USA
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Restorative Dentistry, School of Dentistry, Murcia University, 30008 Murcia, Spain
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Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794-8712, USA
*
Author to whom correspondence should be addressed.
Materials 2019, 12(11), 1833; https://doi.org/10.3390/ma12111833
Received: 13 May 2019 / Revised: 29 May 2019 / Accepted: 3 June 2019 / Published: 6 June 2019
(This article belongs to the Special Issue Materials in Implant Dentistry and Regenerative Medicine)
Implant connections must resist surgical and prosthetic procedures without deformation. This study evaluated the deformation of different internal connections (IC) of narrow dental implants (NDI) after their insertion in artificial dense bone. Thirty NDI, with different IC geometries, Group A (internal hexagon), Group B (tri-channeled), and Group C (four-channeled), with the same length and similar narrow diameters, were inserted in type II density bone blocks. Drilling protocols for dense bone from each implant manufacturer were followed. The Insertion torque (IT), connection length, vertex angles, and wall deformations were analyzed before and after the insertion of the implants. ANOVA (Analysis of Variance) and Tukey post-test were used for statistical comparisons. IT values were higher for Group A, surface damage, and titanium particles were observed in the IC in all the groups. Angle deformations between 5 and 70 degrees were present in all the groups, and the walls of Group B connection were the most affected by deformations (p < 0.05). Within the limitations of this experiment, it can be concluded that narrow diameter implants will suffer deformation of the implant connection and will also experience surface damage and titanium particle release when inserted in type II bone density. View Full-Text
Keywords: narrow dental implants; internal connection; deformation; dense bone narrow dental implants; internal connection; deformation; dense bone
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MDPI and ACS Style

Delgado-Ruiz, R.; Silvente, A.N.; Romanos, G. Deformation of the Internal Connection of Narrow Implants after Insertion in Dense Bone: An in Vitro Study. Materials 2019, 12, 1833.

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