Insertion Torque Function Analysis of Novel Dental Implant Geometry

Pammer, Dávid; Bognár, Eszter

doi:10.1007/978-981-287-573-0_21

Cited by 3 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Instead, in the normal practice, CRI is used to screw in the majority of an implant, and then, IRI is performed using a manual torque wrench for the final portion [ 12 , 15 ]. In laboratory in vitro studies, CRI to insert an artificial screw or implant is used in accordance with ASTM F543 [ 18 – 21 ] with a torque testing machine at 4 rpm or above and with a normal force of 1.14 kg [ 23 ]. Therefore, this study used three insertion approaches to compare clinical and laboratory practices: CRI, IRI_90, and IRI_80.…”

Section: Discussionmentioning

confidence: 99%

“…Dental implant suppliers typically conform to American Society for Testing and Materials (ASTM) F543 when designing products or conducting in vitro studies [ 18 – 21 ]. ASTM F543 specifies that a normal force of 1.14 kg must be exerted on an artificial screw or implant, and the implant must be screwed in at 4 rpm or greater with continuous rotation with a torque testing machine [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Effects of Insertion Approach on the Stability of Dental Implants

Huang

Fuh

Tsai

et al. 2022

Applied Bionics and Biomechanics

View full text Add to dashboard Cite

Dental implant surgery involves the insertion of a dental implant into the alveolar bone; the success of the surgery depends on the initial stability of the implant. The objective of this study was to examine the effects of dental implant insertion approaches in clinical surgery and in accordance with the standards of American Society for Testing and Materials on initial implant stability. Three insertion approaches were used for dental implant placement (Branemark Systems NobelSpeedy Groovy, Nobel Biocare AB, Gothenburg, Sweden) in two types of artificial bone—good bone (GB) and poor bone (PB). The three insertion approaches were as follows: (1) continuous rotation insertion (CRI): using a torque testing machine to continuously screw in an implant to completion and (2 and 3) intermittent rotation insertion (IRI)_90 and IRI_80: using CRI to bury an implant to 90% and 80% of its full length followed by IRI to complete the implantation, respectively. The maximum insertion torque value (ITV), periotest value (PTV), and implant stability quotient (ISQ) were measured and compared. The results indicated that bone quality and insertion approach both affected implant stability. Insertion approaches affected all three implant stability indicators differently in the GB and PB groups ( p = 0.008 ). In GB groups, the insertion approach primarily affected ITV, whereas in PB groups, it primarily affected PTV. The effect of the insertion approach was less apparent for ISQ. Overall, in both the GB and PB groups, the implant stability for IRI_80 was greater than that for IRI_90, and the implant stability for IRI_90 was greater than that for CRI. Future in vitro studies should adopt an insertion approach that complies with the clinical practice for dental implant surgery. Dentists should adjust the timing for IRI in dental implant surgery to achieve greater initial dental implant stability.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effects of Insertion Approach on the Stability of Dental Implants

Huang

Fuh

Tsai

et al. 2022

Applied Bionics and Biomechanics

View full text Add to dashboard Cite

show abstract

“…This one number is not enough to give information about the insertion and primary stability of an implant. That is the reason why insertion torque curve need to be monitored and analyzed in vitro and in vivo as well [46][47][48][49]. 2.…”

Section: Discussionmentioning

confidence: 99%

Calculating ISQ Primary Stability of a Dental Implant through Micromotion

Pammer

2019

Period. Polytech. Mech. Eng.

View full text Add to dashboard Cite

There are several types of primary and secondary stability measuring methods, but there are no calculating methods to determine direct primary stability. The aim of this work is to make a calculation method for primary stability. The out coming result of the calculation should be the same form and unit as available in the clinical and used RFA (Resonance Frequency Analysis) method, especially the ISQ (Implant Stability Quotient). Dental implant analog screws were inserted in bone modelling standard PUR (Polyurethane) solid foam blocks, and the insertion torque and the micromotion was monitored. The ISQ values of the inserted screws were measured also. On the basis of results, the characteristic equation was determined, which showed an excellent correlation (r = 0.96) between the micro mobility and ISQ. To simulate the micro mobility of an inserted screw with FEA (Finite Element Analysis) in any case of the change the bone material properties is not difficult instead of in vitro and in vivo examinations. Using the simulation results and the characteristic equation the clinically used ISQ value could be determinable. Thanks to this simple method, it is easy to monitor virtually the stability change in any lesion of bone structure. As a result of the conducted measurements and simulations, it can be concluded that the ISQ value, which represent the implant primary stability, can be calculated via FEA. With this simulation method, it is possible to predict and monitor pre-clinically the primary stability of dental implants with new geometries.

show abstract

“…Csontkapcsolatnak nevezzük azt az implantátum-csont felületkapcsolatot, amikor az implantátum minél nagyobb felületen érintkezik a csonttal. A csontkapcsolat létrejövését, illetve annak mértékét és minőségét számos tényező befolyásolja [3].…”

Section: Csontkapcsolatunclassified

“…Az implantátum primer (másnéven mechanikai) stabilitása függ: a műtéti technikától, az egyén csontsűrűségétől, az egyén csontstruktúrájától, az implantátum kialakításától, illetve az implantátum felületétől. Az implantátum szekunder (másnéven biológiai) stabilitása pedig függ: az implantátum alapanyagától, az implantátum terhelhetőségétől, az egyén egészségi állapotától, és az egyén csontregenerációs képességétől [3]. Ezek időbeli függését mutatja a sematikus 1. ábra.…”

Section: Csontkapcsolatunclassified

Új típusú gerincimplantátum vizsgálta

Kemény¹,

Károly²,

Pammer³

2017

MTK

View full text Add to dashboard Cite

Nowadays, it is very common to have a spinal disease. Among teenagers, scoliosis is highly widespread and is not only serious because of the bad posture and waist pain, but it can also mutate internal organs, which can cause chronical consequences throughout the patient's life. When it comes to spine correction, it means that a part or the whole spine will be fixed. The implanted screws are locked with the rods in their heads. This titanium structure can stay in the patient for even 80 years after the surgery. It is important to develop new spine implants, with shorter regeneration and healing period after the surgery, and have high quality osseointegration. In this study, we examined the primary stability of the own designed pedicle screw with sand blasted and lathe-turned surface by torque and pull-out tests. D4 density standard polyurethane bone block was used to mimic the real bone properties.

show abstract

Insertion Torque Function Analysis of Novel Dental Implant Geometry

Cited by 3 publications

References 7 publications

The Effects of Insertion Approach on the Stability of Dental Implants

The Effects of Insertion Approach on the Stability of Dental Implants

Calculating ISQ Primary Stability of a Dental Implant through Micromotion

Új típusú gerincimplantátum vizsgálta

Contact Info

Product

Resources

About