scholarly journals Numerical analysis and mechanic theoretical derivations for optimizing the V-thread profiles in dental implant system

2021 ◽  
Author(s):  
Yongqing Cai
Keyword(s):  
Dental Implant ◽  
Simulation Analysis ◽  
Tensile Force ◽  
Helix Angle ◽  
Apex Angle ◽  
Force Transmission ◽  
Bone Implant ◽  
Thread Pitch ◽  
Thread Profile ◽  
Implant System

Abstract Background The thread design of the dental implant is an important feature to be considered in the optimization of the dental implant structure. The present study aimed to investigate the effects of V-thread profile design dimensions, including depth, width, pitch, thread helix angle and triangle thread apex angle on the mechanical characteristics of the bone-implant interface. A total of 588 V-thread implant system models were constructed to investigate the effects of the dimension parameters on the stress distribution generated around the bone-implant interface under vertical occlusal force. Furthermore, the force transfer at the bone-implant interface was analyzed theoretically to analyze the force transmission mechanism at bone-implant for an optimized V-thread profile in the implants. Results The optimum thread pitch ranged from 1.0 mm to 1.2 mm, when the triangle thread depth and width was 0.1 mm. The theoretically derived results showed that, with the same implant diameter, when the thread depth was 0.1 mm and the thread pitch was 0.9 mm, the optimal thread width was found to be 0.1026 mm. This derived result was consistent with the simulation analysis results. Conclusions To design the optimal V-shape threads, the implant and thread dimensions, such as the implant diameter, thread pitch, thread width, thread helix angle and triangle thread apex angle should be comprehensively considered. The optimal designed thread in this study can dissipate the chewing load, as a result of the appropriate ratio of tensile force and shear force on bone-implant interface. The optimum designed thread profile can take full advantage of the carrying capacity of the tensile and shear of the bone, thereby bearing a high chewing load.

scholarly journals Jenis-jenis gigitiruan dukungan implan Implant-supported dentures

2013 ◽  
Vol 12 (1) ◽  
pp. 44
Author(s):  
Poedji Rahajoeningsih ◽  
Rosida Manurung
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Bone Implant ◽  
Tooth Roots ◽  
Removable Prosthesis ◽  
Fixed Prosthesis ◽  
Implant System

Dental implants, or completely said as dental implant bodies, function as analogues of tooth roots, achieving aunion directly with jawbone following their insertion into a prepared socket in the bone. Implant system have threebasic components, namely the dental implant body that is lying in the jawbone, abutment that lies on the jawboneand the prosthesis. Dental implants may stabilize a removable prosthesis, complete or partial overdentures, and orsupport and stabilize a fixed prosthesis. In designing implant-supported removable prostheses, there are three formsof anchorage frequently used, namely bar/sleeve (clip) joints which links two or more implants, ball/cap anchoragesapplied individually to two or more isolated implants, and magnets/magnetic keepers. Implant-supported fixedprosthesis is either screwed to or cemented on to the abutment.

scholarly journals Osseointegrating and phase-oriented micro-arc-oxidized titanium dioxide bone implants

2021 ◽  
Vol 19 ◽  
pp. 228080002110068
Author(s):  
Hsien-Te Chen ◽  
Hsin-I Lin ◽  
Chi-Jen Chung ◽  
Chih-Hsin Tang ◽  
Ju-Liang He
Keyword(s):  
Titanium Dioxide ◽  
High Surface ◽  
Cell Activity ◽  
Active Surface ◽  
Rutile Phase ◽  
Hydroxyl Groups ◽  
Bone Implant ◽  
Implant System

Here, we present a bone implant system of phase-oriented titanium dioxide (TiO2) fabricated by the micro-arc oxidation method (MAO) on β-Ti to facilitate improved osseointegration. This (101) rutile-phase-dominant MAO TiO2 (R-TiO2) is biocompatible due to its high surface roughness, bone-mimetic structure, and preferential crystalline orientation. Furthermore, (101) R-TiO2 possesses active and abundant hydroxyl groups that play a significant role in enhancing hydroxyapatite formation and cell adhesion and promote cell activity leading to osseointegration. The implants had been elicited their favorable cellular behavior in vitro in the previous publications; in addition, they exhibit excellent shear strength and promote bone–implant contact, osteogenesis, and tissue formation in vivo. Hence, it can be concluded that this MAO R-TiO2 bone implant system provides a favorable active surface for efficient osseointegration and is suitable for clinical applications.

The original one-stage dental implant system and its clinical application

1998 ◽  
Vol 17 (1) ◽  
pp. 106-118 ◽  
Author(s):  
Daniel Buser ◽  
Urs C. Belser ◽  
Niklaus P. Lang
Keyword(s):  
Dental Implant ◽  
Clinical Application ◽  
One Stage ◽  
Implant System

Comparison of Push-In versus Pull-Out Tests on Bone-Implant Interfaces of Rabbit Tibia Dental Implant Healing Model

2011 ◽  
Vol 15 (3) ◽  
pp. 460-469 ◽  
Author(s):  
Wook-Jin Seong ◽  
Shahrzad Grami ◽  
Soo Cheol Jeong ◽  
Heather J. Conrad ◽  
James S. Hodges
Keyword(s):  
Dental Implant ◽  
Bone Implant ◽  
Pull Out ◽  
Rabbit Tibia ◽  
Healing Model

scholarly journals Mechanical flexural ex vivo study of osteotomized swine femurs stabilized with two types of polyamide 12 rods

2017 ◽  
Vol 47 (8) ◽  
Author(s):  
Juliana Scarpa da Silveira Almeida ◽  
Débora de Oliveira Garcia ◽  
Renato Camargo Bortholin ◽  
Carlos Amaral Razzino ◽  
Cristiane dos Santos Honsho ◽  
...  
Keyword(s):  
Bone Fractures ◽  
Ex Vivo ◽  
Polymeric Materials ◽  
Fracture Site ◽  
Medullary Canal ◽  
Modulus Of Rupture ◽  
Long Bone ◽  
Bone Implant ◽  
Polyamide 12 ◽  
Implant System

ABSTRACT: Long bone fractures are commonly in surgery routine and several bone imobilization techniques are currently available. Technological progress has enabled to use low cost materials in surgical procedures. Thus, the aim of this study was to evaluate the applicability of polyamide 12 rods, solid and hollow in swine femurs, comparing them through flexion strength. This study had as second aim to fix the locking errors, commom place in interlocking nails, once polyamide 12 allows perforation in any direction by orthopaedic screw. Six groups were used: G1 - eight whole swine femurs; G2 - eight whole swine femurs with drilled medullary canal; G3 - two solid polyamide 12 rods; G4 - two hollow polyamide 12 rods; G5 - eight osteotomized drilled swine femurs with a solid polyamide 12 rod implanted in the medullary canal and locked by four 316L stainless steel screws; and G6 - similar to G5 but using hollow rods instead of solid ones. No significant differences were observed for the modulus of rupture between solid and hollow rods, demonstrating that both rods had similar performances. These results led to the speculation that the addition of other polymers to the hollow rods could increase their strength and thus the bone-implant system. Furthermore, the comparison between G1, G5 and G6 could be analyzed using the finite element method in future. New polymeric materials may be developed based on the data from this study, strengthening the bone-implant system and making possible screws to be placed in any direction, nullifying the detrimental forces on the fracture site.

scholarly journals Differences of Post-Placement Bone Implant Contact (BIC) Value of Dental Implant Coated and Not Coated With Platelet Rich Plasma (PRP)

2017 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Bahruddin Thalib ◽  
Edy Machmud ◽  
Mochammad Dharmautama ◽  
Ervina Sari Surya ◽  
Asmawati Asmawati ◽  
...  
Keyword(s):  
Dental Implant ◽  
Platelet Rich Plasma ◽  
Control Group ◽  
Bone Implant ◽  
Significant Difference ◽  
Experimental Laboratory ◽  
The Mean ◽  
And Control ◽  
Veterinary Faculty ◽  
Implant Treatment

OBJECTIVE: The success of a dental dental implant treatment focuses on a phenomenon called osseointegration. Evaluation of Bone Area (BA) and Bone-Dental implant Contact (BIC) through histomorphometric analysis is the most widely used parameter to measure osseointegration. The aim of this study was to see post-placement Bone Dental implant Contact (BIC) value of dental implant coated and not coated with PRP.MATERIALS & METHODS: This study was an experimental laboratory conducted at Laboratory of Veterinary Faculty, Hasanuddin University. The sample was baby buck rabbit, aged 4-8 months old, weight 1500–2000 gram, divided into 2 groups each group consist of 12 rabbit, control group not coated with PRP and treatment group coated with PRP. Data analysis using SPSS version 20.0 (SPSS Inc., Chicago, IL, USA).RESULTS: There was a significant difference between the mean BIC values and the 20% increase in BIC values in LP1, LP2 and LP3 between treatment and control group on day 0, 3, 7, and 14.CONCLUSIONS: There was a difference in the average of post-placement BIC value of dental implant coated and not coated with PRP.

scholarly journals Applications of Finite Element in Implant Dentistry and Oral Rehabilitation

2021 ◽  
Vol 15 (1) ◽  
pp. 392-397
Author(s):  
Van V. Dam ◽  
Hai A. Trinh ◽  
Dao T. Dung ◽  
Trinh D. Hai
Keyword(s):  
Finite Element ◽  
Dental Implant ◽  
Google Scholar ◽  
Stress Distributions ◽  
Oral Rehabilitation ◽  
Bone Implant ◽  
Bone Interface ◽  
Implant Dentistry

Finite element is widely applied in dentistry to study the stress distributions on adjoining bone, the biomechanics of dental implant and bone; implant and bone interface and study its fatigue behaviors of the implant. This article presents various applications of finite element in implant dentistry. Available articles were searched and reviewed from March 1980 till September 2020 from Pubmed, Scopus, Google Scholar, and Science direct. Relevant studies were included and critically analyzed. Finite element is an important tool in implant dentistry to study the stress distributions on adjoining bone, the biomechanics of dental implant and bone; implant and bone interface, and fatigue behaviors.

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