The implant macrogeometry and thread profile represent one of the most important factors for a successful achievement of primary stability during the positioning procedure. The aim of the present investigation was to evaluate the insertion torque (IT), removal torque (RT) and Implant stability Quotient (ISQ) of two different implant macrogeometry and thread profile on solid rigid polyurethane model. Two different implants macrogeometries were tested: K2 (Group I) with 11° angle, 1.17 mm pitch and self-cutting V thread profile and K3 (Group II) implants with 30° angle, 0.71 mm pitch and spyral thread profile. A total of 120 specimens (n = 60 for each group) were positioned into different conditions of solid rigid polyurethane blocks. The insertion torque (IT), removal torque (RT) and ISQ were measured for each specimen. All specimens achieved the positioning into solid rigid polyurethane blocks for both of groups with no loss of stability. A significantly higher IT, RT and ISQ were detected in Group II (p < 0.05). In both groups the mean values for IT, RT and ISQ appeared promising from a clinical point of view. In spite of different macrogeometry and thread profile, both implant types achieved high primary stability on solid rigid polyurethane block to support the functional loading for a clinical application.

Influence of the dental implant macrogeometry and threads design on primary stability : an in vitro simulation on artificial bone blocks / L. Comuzzi, M. Tumedei, F. De Angelis, F. Lorusso, A. Piattelli, G. Iezzi. - In: COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING. - ISSN 1025-5842. - 24:11(2021), pp. 1242-1250. [10.1080/10255842.2021.1875219]

Influence of the dental implant macrogeometry and threads design on primary stability : an in vitro simulation on artificial bone blocks

Tumedei M.;
2021

Abstract

The implant macrogeometry and thread profile represent one of the most important factors for a successful achievement of primary stability during the positioning procedure. The aim of the present investigation was to evaluate the insertion torque (IT), removal torque (RT) and Implant stability Quotient (ISQ) of two different implant macrogeometry and thread profile on solid rigid polyurethane model. Two different implants macrogeometries were tested: K2 (Group I) with 11° angle, 1.17 mm pitch and self-cutting V thread profile and K3 (Group II) implants with 30° angle, 0.71 mm pitch and spyral thread profile. A total of 120 specimens (n = 60 for each group) were positioned into different conditions of solid rigid polyurethane blocks. The insertion torque (IT), removal torque (RT) and ISQ were measured for each specimen. All specimens achieved the positioning into solid rigid polyurethane blocks for both of groups with no loss of stability. A significantly higher IT, RT and ISQ were detected in Group II (p < 0.05). In both groups the mean values for IT, RT and ISQ appeared promising from a clinical point of view. In spite of different macrogeometry and thread profile, both implant types achieved high primary stability on solid rigid polyurethane block to support the functional loading for a clinical application.
dental implant; drilling; Mechanical behaviour; polyurethane block; Dental Prosthesis Design; Dental Prosthesis Retention; Polyurethanes; Torque; Bone Density; Dental Implants
Settore MED/50 - Scienze Tecniche Mediche Applicate
Settore MED/28 - Malattie Odontostomatologiche
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/896675
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