Comparative Evaluation of Primary Stability between Different Diameters Multi-Scale Roughness Dental Implant by Solid Rigid Polyurethane Simulation

Tumedei, Margherita; Petrini, Morena; Cipollina, Alessandro; Carmine, Maristella Di; Piattelli, Adriano; Cucurullo, Antonio; Iezzi, Giovanna

doi:10.3390/osteology1010006

Cited by 2 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Data analyses and graphics were generated using R software (v.4.0.2). The sample size calculation was performed by the software package (Heinrich Heine Universität Düsseldorf, Germany) with 0.80 power (1-β), 0.05 alpha error and effect size (f) of 0.83, according a previous study [20]. The minimum samples necessary to achieve the statistically significance of the study data was 30 implants (5 for each tested conditions).…”

Section: Discussionmentioning

confidence: 99%

The Influence of the Implant Macrogeometry on Insertion Torque, Removal Torque, and Periotest Implant Primary Stability: A Mechanical Simulation on High-Density Artificial Bone

et al. 2021

Self Cite

View full text Add to dashboard Cite

Background: The primary stability is a determinant clinical condition for the success of different dental implants macro-design in different bone density using a validated and repeatable in vitro technique employing solid rigid polyurethane blocks. Materials and Methods: Five implants 3.8 × 13 mm2 for each macro-design (i.e., IK—tapered; IC—cylindric; and IA—active blade shape) were positioned into 20- and 30- pounds per cubic foot (PCF) polyurethane blocks. Bucco-lingual (BL) and mesial-distal (MD) implant stability quotient score (ISQ) was assessed by resonance frequency analysis while, insertion/removal torques were evaluated by dynamometric ratchet. Results: IC implants shown better primary stability in terms of ISQ compared to IA and IK in lower density block (20 PCF), while IK was superior to IA in higher density (30 PCF). IC shown higher removal torque in 30-PCF compared to IA and IC. Conclusions: The study effectiveness on polyurethane artificial bone with isotropic symmetry structure showed that the implants macro-design might represent a key factor on primary stability, in particular on low-density alveolar bone. Clinicians should consider patients features and implant geometry during low-density jaws rehabilitation. Further investigations are needed to generalize these findings.

show abstract

Section: Discussionmentioning

confidence: 99%

The Influence of the Implant Macrogeometry on Insertion Torque, Removal Torque, and Periotest Implant Primary Stability: A Mechanical Simulation on High-Density Artificial Bone

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a previous study, we have shown that multiscale-roughness dental implants of 3.0 and 5.0 diameters showed high insertion torque and primary stability on polyurethane blocks, and this is valuable for implant-loading protocols [28].…”

Section: Introductionmentioning

confidence: 94%

“…All implants tested were characterized by a multiscale roughness and a surface treatment locally differentiated in 4 different portions, starting from the implant neck [28]. In particular, the cervical portion was characterized by a machined surface with a microroughness of Ra < 1 µ.…”

Section: Implant Characteristicsmentioning

confidence: 99%

Fixture Length and Primary Stability: An In Vitro Study on Polyurethane Foam

Petrini

Tumedei

Cipollina³

et al. 2022

Applied Sciences

Self Cite

View full text Add to dashboard Cite

(1) Background: Recently, novel dental implants that are characterized by different levels of surface roughness in the distinct parts of the fixture’s body have been introduced in the market. These surface characteristics could affect the primary stability of the implants. The aim of this in vitro study was to compare the primary stability of short and long implants, characterized by multiscale surface roughness, inserted on polyurethane blocks. The secondary aim was to understand if the implant length could be a crucial factor in the decision-making in immediate or rather than delayed loading protocol in the different bone densities. (2) Methods: A total of 20 cylindrical dental implants with a diameter of 5.0 mm were tested for the lengths 6.0 mm (short implants) versus 13.0 mm (long implants) on two different solid rigid polyurethane blocks (20 and 30 PCF). The primary stability was evaluated by measuring the insertion torque value (ITV), the removal torque (RTV), and the resonance frequency analysis RFA. (3) Results: The values of ITV, RTV, and RFA showed the same trend in all measurements. Long implants showed a significantly higher primary stability on 30 PCF blocks that present mechanical properties similar to high-density bone. On the contrary, no relevant differences were found on 20 PCF blocks, which mimic trabecular bone density. (4) Conclusions: The impact of fixture length on the primary stability of implants with multiscale surface roughness is significant in 30 PCF polyurethane corresponding to higher bone density, but not in lower ones.

show abstract

Comparative Evaluation of Primary Stability between Different Diameters Multi-Scale Roughness Dental Implant by Solid Rigid Polyurethane Simulation

Cited by 2 publications

References 52 publications

The Influence of the Implant Macrogeometry on Insertion Torque, Removal Torque, and Periotest Implant Primary Stability: A Mechanical Simulation on High-Density Artificial Bone

The Influence of the Implant Macrogeometry on Insertion Torque, Removal Torque, and Periotest Implant Primary Stability: A Mechanical Simulation on High-Density Artificial Bone

Fixture Length and Primary Stability: An In Vitro Study on Polyurethane Foam

Contact Info

Product

Resources

About