A systematic review of the clinical survival of zirconia implants

Hashim, Dena Talal; Cionca, Norbert; Courvoisier, Delphine S.; Mombelli, Andrea

doi:10.1007/s00784-016-1853-9

Cited by 126 publications

(123 citation statements)

References 51 publications

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“…Maximum implant sites were seen in mandible as compared with maxilla. Our results are in agreement with the results of Hashim et al 7 In their study also maximum implant sites were seen in mandible. We found that maximum implant sites were seen in anterior maxilla (280) followed by anterior mandible (235), posterior mandible (175), and posterior maxilla (160).…”

Section: Discussionsupporting

confidence: 94%

Measurement of Crestal Cortical Bone Thickness at Implant Site: A Cone Beam Computed Tomography Study

Gupta¹,

Rathee²,

Agarwal³

et al. 2017

The Journal of Contemporary Dental Practice

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Aim: Dental implants have emerged as a new treatment modality for the majority of patients complaining of missing teeth. Bone quantity and bone quality are among various factors which ensure the longevity of dental implant in the patient's mouth. The assessment of cortical bone thickness of the outer layer and the cancellous bone density by cone beam computed tomography (CBCT) has proved beneficial for the patient. This study aimed at presurgical measurement of crestal bone thickness at various implant sites using CBCT images. Materials and methods:This study was conducted in the Department of Prosthodontics in the year 2015. It included 218 patients who wanted to replace missing teeth. Patients were subjected to CBCT scan using NewTom CBCT machine operating at 120 kVp and 5 mA with a resolution of 0.1 × 0.1 × 0.1 mm 3 . New Net Technologies (NNT) software with a slice thickness of 0.1 mm was used in this study. A total of 780 implant sites were identified on images of 218 patients. In all patients, the measurement of crestal bone thickness in the region of implant site was performed with NNT software. The buccolingual measurement of crestal bone was done in cross sections obtained after CBCT. Results:Out of 218 patients, males were 110 and females were 108. The difference between gender was nonsignificant (p > 0.05). Out of 780 implant sites, 370 were in the maxilla and 410 were in mandible. The difference was nonsignificant (p > 0.05). Out of 780 implant sites, 210 were in anterior maxilla and 160 were in the posterior maxilla. Totally, 235 sites were in anterior mandible and 175 were in the posterior mandible. The distribution was nonsignificant (p = 0.15). The mean crestal bone thickness in anterior maxilla was 0.82 mm, in posterior maxilla was 0.76 mm, in anterior mandible was 1.08 mm, and in posterior mandible was 1.18 mm. The difference among regions was significant (p = 0.01). Measurement of Crestal Conclusion:The highest thickness of cortical bone was observed in posterior mandible followed by anterior mandible, anterior maxilla, and posterior maxilla. Thus, considering the less cortical thickness in the posterior maxillary region, the implant placement should be done with proper attention.Clinical significance: Dental implant is the need of the hour. It is beneficial to patients in terms of longer survival rates. With CBCT, all measurements, such as bone quality and quantity have become easy because of three-dimensional nature. This has proved to be beneficial in the analysis of cortical bone thickness as well as measuring the distance from anatomical structures.

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Section: Discussionsupporting

confidence: 94%

Measurement of Crestal Cortical Bone Thickness at Implant Site: A Cone Beam Computed Tomography Study

Gupta¹,

Rathee²,

Agarwal³

et al. 2017

The Journal of Contemporary Dental Practice

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“…Implants made from zirconia may be considered as a promising metal free alternative to the well-established titanium implants [1][2][3][4][5][6] . Compared to the natural tooth with its periodontal ligament, the implant-bone interface is rigid.…”

Section: Introductionmentioning

confidence: 99%

Correlations between fracture load of zirconia implant supported single crowns and mechanical properties of restorative material and cement

2018

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Zirconia implants that were restored with veneered zirconia displayed severe chipping rates of the restorations in clinical studies. Purpose of this study was to evaluate the fracture load of different zirconia implant supported monolithic crown materials (zirconia, alumina, lithium disilicate, feldspar ceramic and polymer-infiltrated ceramic) cemented with various cements (Harvard LuteCem SE, Harvard Implant Semi-permanent, Multilink Automix, VITA Adiva F-Cem). Flexural strength and fracture toughness of crown materials and compressive strength of the cements were measured. Fracture load values of crowns fabricated from lithium disilicate, feldspar ceramic and polymer-infiltrated ceramic were increased when cement with high compressive strength was used. Fracture loads for zirconia and alumina crowns were not influenced by the cement. Flexural strength and fracture toughness of the ceramics correlated linearly with the respective fracture load when using adhesive cement with high compressive strength. To achieve sufficient fracture load values, cementation with adhesive cement is essential for feldspar and polymer-infiltrated ceramic.

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“…However, esthetic demand is more critical, especially in the anterior regions of the mouth. As a way to achieve optimal esthetics, zirconia (ZrO 2 ) ceramic restorations [1], abutments [2], and implants [3] have been attractive in dentistry due to their high biocompatibility, esthetic properties of white color, and outstanding mechanical properties [4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Grit-Blasting and Hydrofluoric Acid Etching Treatment on Surface Characteristics and Biofilm Formation on Zirconia

et al. 2017

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Abstract:The objective of this study was to investigate the effect of hydrofluoric acid etching treatment on the surface characteristics of zirconia and Streptococcus sanguinis (S. sanguinis) and Porphyromonas gingivalis (P. gingivalis) biofilm formation on zirconia. Zirconia specimens were prepared with different treatments, including being polished with 1000-grit SiC abrasive paper as the control group (Group C), grit-blasted with 110 µm silica-coated alumina particles (Group GB), etched with 40% hydrofluoric acid for 25 min at 100 • C (Group HF), and grit-blasted with 110 µm silica-coated alumina particles and then etched with 40% hydrofluoric acid for 25 min at 100 • C (Group GBHF). The highest surface roughness values and hydrophilicity were shown in Group HF and Group GBHF. Scanning electron microscopy (SEM) showed that hydrofluoric acid can create a crater-like appearance on the zirconia surface. An energy-dispersive X-ray (EDX) analysis demonstrated similar element concentration (wt %) in Group C, Group HF, and Group GBHF, but not for Group GB with higher concentrations of Al and Si element. Colony forming unit (CFU) counts showed that a similar amount of S. sanguinis biofilm and significantly lower P. gingivalis biofilm were formed on zirconia surfaces in Group HF and Group GBHF compared to that in Group C after three days of bacteria culture (p < 0.05). These results indicate that hydrofluoric acid etching on zirconia may not increase S. sanguinis and P. gingivalis mature biofilm formation on zirconia.

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A systematic review of the clinical survival of zirconia implants

Cited by 126 publications

References 51 publications

Measurement of Crestal Cortical Bone Thickness at Implant Site: A Cone Beam Computed Tomography Study

Measurement of Crestal Cortical Bone Thickness at Implant Site: A Cone Beam Computed Tomography Study

Correlations between fracture load of zirconia implant supported single crowns and mechanical properties of restorative material and cement

Influence of Grit-Blasting and Hydrofluoric Acid Etching Treatment on Surface Characteristics and Biofilm Formation on Zirconia

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