Titanium fixture implants treated by laser in dentistry: Review article

Khoo, Lee Kian; Sakdajeyont, Watus; Khanijou, Manop; Seriwatanachai, Dutmanee; Kiattavorncharoen, Sirichai; Pairuchvej, Verasak; Wongsirichat, Natthamet

doi:10.1016/j.ajoms.2019.08.001

Cited by 8 publications

(7 citation statements)

References 34 publications

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“…The most favorable roughness parameters were obtained for the Ti-6Al-4V sample. The optimal value of the Ra parameter for implants is 1–2 µm [ 13 ] or 1–10 µm [ 10 ]. Due to the roughness, the osseointegration process is faster.…”

Section: Discussionmentioning

confidence: 99%

“…Titanium is characterized by the highest biotolerance, high biocompatibility and the lowest Young’s modulus among currently used metallic biomaterials, and it also shows corrosion resistance in the aggressive environment of the human body [ 10 , 11 , 12 ]. As a result, it is successfully used in facial plates, pacemakers, endoprostheses and dental implants [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties and Residual Stress Measurements of Grade IV Titanium and Ti-6Al-4V and Ti-13Nb-13Zr Titanium Alloys after Laser Treatment

Jażdżewska

Kwidzińska

Seyda³

et al. 2021

Materials

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Nowadays, surface engineering focuses on research into materials for medical applications. Titanium and its alloys are prominent, especially Ti-6Al-4V and Ti-13Nb-13Zr. Samples made of pure grade IV titanium and the titanium alloys Ti-6Al-4V and Ti-13Nb-13Zr were modified via laser treatment with laser beam frequency f = 25 Hz and laser beam power P = 1000 W during a laser pulse with duration t = 1 ms. Subsequently, to analyze the properties of the obtained surface layers, the following tests were performed: scanning electron microscopy, chemical and phase composition analysis, wetting angle tests and roughness tests. The assessment of the impact of the laser modification on the internal stresses of the investigated materials was carried out by comparing the values of the stresses of the laser-modified samples to those of the reference samples. The obtained results showed increased values of tensile stresses after laser modification: the highest value was found for the Ti-6Al-4V alloy at 6.7434 GPa and the lowest for pure grade IV titanium at 3.742 GPa. After laser and heat treatment, a reduction in the stress was observed, together with a significant increase in the hardness of the tested materials, with the highest value for Ti-6Al-4V alloy at 27.723 GPa. This can provide better abrasion resistance and lower long-term toxicity, both of which are desirable when using Ti-6Al-4V and Ti-13Nb-13Zr alloys for implant materials.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Residual Stress Measurements of Grade IV Titanium and Ti-6Al-4V and Ti-13Nb-13Zr Titanium Alloys after Laser Treatment

Jażdżewska

Kwidzińska

Seyda³

et al. 2021

Materials

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“…In general, CP Ti and its alloys are used to fabricate dental implant fixtures [ 52 ]. Meanwhile, the choice of titanium and its alloys as an implant material depends on the high biocompatibility, corrosion resistance, strength, and the osseointegration function [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

et al. 2020

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The propose of this review was to summarize the advances in multi-scale surface technology of titanium implants to accelerate the osseointegration process. The several multi-scaled methods used for improving wettability, roughness, and bioactivity of implant surfaces are reviewed. In addition, macro-scale methods (e.g., 3D printing (3DP) and laser surface texturing (LST)), micro-scale (e.g., grit-blasting, acid-etching, and Sand-blasted, Large-grit, and Acid-etching (SLA)) and nano-scale methods (e.g., plasma-spraying and anodization) are also discussed, and these surfaces are known to have favorable properties in clinical applications. Functionalized coatings with organic and non-organic loadings suggest good prospects for the future of modern biotechnology. Nevertheless, because of high cost and low clinical validation, these partial coatings have not been commercially available so far. A large number of in vitro and in vivo investigations are necessary in order to obtain in-depth exploration about the efficiency of functional implant surfaces. The prospective titanium implants should possess the optimum chemistry, bionic characteristics, and standardized modern topographies to achieve rapid osseointegration.

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“…The osteogenic activity expressed by cell proliferation and differentiation was shown to be improved by the femtosecond laser, the effect attributed to reduced Young's modulus and the microhardness of titanium due to an appearance of voids on the subsurface layer, which originated from cavitation during conditions of high tensile stresses and temperatures [23]. The considerable absence of torque after osseointegration was observed for the titanium alloy treated using laser techniques [22]. However, in [11], for the nanostructured titanium surface coated with either TiNbN or subjected to titanium plasma spraying, all implants were osseointegrated and there were noted differences in both the pull-out force and in the bone-tissue volume ratio between irradiated and non-laser-treated specimens.…”

Section: Introductionmentioning

confidence: 95%

“…After laser processing, the oxygen content was higher in the micro-protrusion than in the micro-groove [9]. Excessive oxygen was appointed within the subsurface layer [16,22]. Thus, the laser treatment enhanced the transformation of Ti and Ti 2 O 3 into TiO 2 within the surface layer [16].…”

Section: Introductionmentioning

confidence: 98%

Effect of Laser Treatment on Intrinsic Mechanical Stresses in Titanium and Some of Its Alloys

et al. 2023

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Laser surface treatment conducted at different power levels is an option to modify titanium bone implants to produce nano- and microtopography. However, such processing can lead to excess mechanical stress within the surface layer. This research aims to calculate the level of such residual stresses after the surface processing of Ti grade IV, Ti15Mo, and Ti6Al7Nb alloys with an Nd:YAG laser. Light and scanning electron microscopies (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffractometry (XRD), optical profilography, and nano-indentation tests were applied to characterize the surface zone. The laser processing resulted in a distinct surface pattern and the formation of remelted zones 66–126 µm thick, with roughness values ranging between 0.22 and 1.68 µm. The mechanical properties were weakly dependent on the material composition. The residual stresses caused by the laser treatment were moderate, always tensile, increasing with loading, and was the highest for the Ti15Mo alloy.

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Titanium fixture implants treated by laser in dentistry: Review article

Cited by 8 publications

References 34 publications

Mechanical Properties and Residual Stress Measurements of Grade IV Titanium and Ti-6Al-4V and Ti-13Nb-13Zr Titanium Alloys after Laser Treatment

Mechanical Properties and Residual Stress Measurements of Grade IV Titanium and Ti-6Al-4V and Ti-13Nb-13Zr Titanium Alloys after Laser Treatment

Multi-Scale Surface Treatments of Titanium Implants for Rapid Osseointegration: A Review

Effect of Laser Treatment on Intrinsic Mechanical Stresses in Titanium and Some of Its Alloys

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