Bone‐to‐Implant Contact Around Immediately Loaded Direct Laser Metal‐Forming Transitional Implants in Human Posterior Maxilla

Shibli, Jamil Awad; Mangano, Carlo; Mangano, Francesco; Rodrigues, José Augusto; Cassoni, Alessandra; Bechara, Karen; Ferreia, Jose Divino B.; Dottore, Alexandre M.; Iezzi, Giovanna; Piattelli, Adriano

doi:10.1902/jop.2012.120126

Cited by 47 publications

(69 citation statements)

References 20 publications

(38 reference statements)

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“…In fact, the scientific literature supports the concept that micro-movements transmitted by occlusal forces and oral tissues (lips, cheeks, tongue) to the bone-implant interface, above a certain threshold, may jeopardize osseointegration, and determine the mobilization and failure of the implant [5,6,7,8,9,12,13]. Finally, in our present SEM study, we report on the results obtained with an implant of standard dimensions (3.5 mm diameter × 10 mm length), and not with transitional nor temporary implants of reduced dimensions, like in previous studies [16,19]. This may represent an additional advantage of our study, because we have evaluated how the healing processes take place in a real situation.…”

Section: Discussionmentioning

confidence: 56%

“…The best way to evaluate osseointegration in vivo is to retrieve an osseointegrated implant from the human native bone and to analyze the bone-implant interface histologically and istomorphometrically [14,16,19,21]. Obviously, this type of evaluation can be difficult for ethical reasons, and often temporary, mini-implants that are easier to retrieve are used in these studies [14,16,19,21,32,33].…”

Section: Discussionmentioning

confidence: 99%

“…Obviously, this type of evaluation can be difficult for ethical reasons, and often temporary, mini-implants that are easier to retrieve are used in these studies [14,16,19,21,32,33]. …”

Section: Discussionmentioning

confidence: 99%

“…Histological and histomorphometrical studies in humans have shown that micro-rough surfaces can accelerate bone healing by stimulating the deposition of new bone on the fixture and thereby increasing the percentage of bone-to-implant contact, when compared to the conventional machined surfaces [14,16,19,20]. This may allow the clinician to anticipate the functionalization of the implant, even in difficult clinical contexts (situations with poor bone quality), and to propose and use early and immediate prosthetic loading protocols [7,8,9,10,11,12,18,19,20].…”

Section: Introductionmentioning

confidence: 99%

“…This may allow the clinician to anticipate the functionalization of the implant, even in difficult clinical contexts (situations with poor bone quality), and to propose and use early and immediate prosthetic loading protocols [7,8,9,10,11,12,18,19,20]. …”

Section: Introductionmentioning

confidence: 99%

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Scanning Electron Microscope (SEM) Evaluation of the Interface between a Nanostructured Calcium-Incorporated Dental Implant Surface and the Human Bone

et al. 2017

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Purpose. The aim of this scanning electron microscope (SEM) study was to investigate the interface between the bone and a novel nanostructured calcium-incorporated dental implant surface in humans. Methods. A dental implant (Anyridge®, Megagen Implant Co., Gyeongbuk, South Korea) with a nanostructured calcium-incorporated surface (Xpeed®, Megagen Implant Co., Gyeongbuk, South Korea), which had been placed a month earlier in a fully healed site of the posterior maxilla (#14) of a 48-year-old female patient, and which had been subjected to immediate functional loading, was removed after a traumatic injury. Despite the violent trauma that caused mobilization of the fixture, its surface appeared to be covered by a firmly attached, intact tissue; therefore, it was subjected to SEM examination. The implant surface of an unused nanostructured calcium-incorporated implant was also observed under SEM, as control. Results. The surface of the unused implant showed a highly-structured texture, carved by irregular, multi-scale hollows reminiscent of a fractal structure. It appeared perfectly clean and devoid of any contamination. The human specimen showed trabecular bone firmly anchored to the implant surface, bridging the screw threads and filling the spaces among them. Conclusions. Within the limits of this human histological report, the sample analyzed showed that the nanostructured calcium-incorporated surface was covered by new bone, one month after placement in the posterior maxilla, under an immediate functional loading protocol.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

“…Obviously, this type of evaluation can be difficult for ethical reasons, and often temporary, mini-implants that are easier to retrieve are used in these studies [14,16,19,21,32,33]. …”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Scanning Electron Microscope (SEM) Evaluation of the Interface between a Nanostructured Calcium-Incorporated Dental Implant Surface and the Human Bone

et al. 2017

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Osseointegration of implant surfaces in metabolic syndrome and type‐2 diabetes mellitus

Bergamo,

de Oliveira,

Campos

et al. 2024

J Biomed Mater Res

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This in vivo study evaluated the bone healing response around endosteal implants with varying surface topography/chemistry in a preclinical, large transitional model induced with metabolic syndrome (MS) and type‐2 diabetes mellitus (T2DM). Fifteen Göttingen minipigs were randomly distributed into two groups: (i) control (normal diet, n = 5) and (ii) O/MS (cafeteria diet for obesity induction, n = 10). Following obesity induction, five minipigs from the obese/metabolic syndrome (O/MS) group were further allocated, randomly, into the third experimental group: (iii) T2DM (cafeteria diet + streptozotocin). Implants with different surface topography/chemistry: (i) dual acid‐etched (DAE) and (ii) nano‐hydroxyapatite coating over the DAE surface (NANO), were placed into the right ilium of the subjects and allowed to heal for 4 weeks. Histomorphometric evaluation of bone‐to‐implant contact (%BIC) and bone area fraction occupancy (%BAFO) within implant threads were performed using histomicrographs. Implants with NANO surface presented significantly higher %BIC (~26%) and %BAFO (~35%) relative to implants with DAE surface (%BIC = ~14% and %BAFO = ~28%, p < .025). Data as a function of systemic condition presented significantly higher %BIC (~28%) and %BAFO (~42%) in the control group compared with the metabolically compromised groups (O/MS: %BIC = 14.35% and %BAFO = 26.24%, p < .021; T2DM: %BIC = 17.91% and %BAFO = 26.12%, p < .021) with no significant difference between O/MS and T2DM (p > .05). Statistical evaluation considering both factors demonstrated significantly higher %BIC and %BAFO for the NANO surface relative to DAE implant, independent of systemic condition (p < .05). The gain increase of %BIC and %BAFO for the NANO compared with DAE was more pronounced in O/MS and T2DM subjects. Osseointegration parameters were significantly reduced in metabolically compromised subjects compared with healthy subjects. Nanostructured hydroxyapatite‐coated surfaces improved osseointegration relative to DAE, regardless of systemic condition.

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Near Net Shape Manufacturing of Dental Implants Using Additive Processes

ElShaer

Nair

Hassanin

2019

Materials Forming, Machining and Tribology

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Bone‐to‐Implant Contact Around Immediately Loaded Direct Laser Metal‐Forming Transitional Implants in Human Posterior Maxilla

Abstract: The present data obtained in humans showed that, although both IL and UI presented good BIC%, IL DLMF implants had a higher BIC% in the posterior maxilla.

Cited by 47 publications

References 20 publications

Scanning Electron Microscope (SEM) Evaluation of the Interface between a Nanostructured Calcium-Incorporated Dental Implant Surface and the Human Bone

Scanning Electron Microscope (SEM) Evaluation of the Interface between a Nanostructured Calcium-Incorporated Dental Implant Surface and the Human Bone

Osseointegration of implant surfaces in metabolic syndrome and type‐2 diabetes mellitus

Near Net Shape Manufacturing of Dental Implants Using Additive Processes

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