Potential risk factors for early and late dental implant failure: a retrospective clinical study on 9080 implants

Staedt, Henning; Rossa, Martin; Lehmann, Karl Martin; Al‐Nawas, Bilal; Kämmerer, Peer W.; Heimes, Diana

doi:10.1186/s40729-020-00276-w

Cited by 63 publications

(50 citation statements)

References 56 publications

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“…There are studies to support the theory that the superior maxilla, on being a more porous bone and easier to reabsorb, presents more implant losses than the mandible [34,35]. As opposed to other investigators who explained that a higher failure rate occurs in the mandible region over the short-term, this is down to the cortical thickness and limited mandible vascularization [9].…”

Section: Discussionmentioning

confidence: 98%

“…Although implantology treatment in odontology is predictable, complications can still occur, which directly influence success and failure rates. Some of the most prevalent complications include peri-implant mucositis (19-65%), peri-implantitis (1-47%) [3,5,6], the aesthetic and mechanical failures of the prosthetic rehabilitation [7], and the complete loss of the implant osseointegration, pre-and post-functional load [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Retrospective Study of Biohorizons® Implants Placed by Postgraduate Students at the University of Barcelona

et al. 2022

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The study aimed to evaluate the survival and failure rate, in the short- and medium-term, in addition to its relationship with risk factors, in implants placed by postgraduate students of the Master of Medicine, Surgery, and Oral Implantology course from the University of Barcelona. The study was designed including 192 patients with 422 implants placed between 2015 and 2018. Variables of implant failure were evaluated and related. Failure was split into early failure and late failure. Qualitative data were compared using the chi-squared test, taking p ≤ 0.05 as a significant value. The comparison of quantitative variables was carried out using the Student’s t-test for independent samples. The survival rate in a period of 6 months to 3 years was 97.87%. The mean age of the patients was (54.5 ± 13), and the largest number of implants were placed in the 51–60 age range. The failure rate was 2.13% (N = 9), 6 failed early and 3 failed after definitive prosthetic loading, with a p value < 0.0001. When comparing the failures according to their location in the anterior/posterior sector of the arch, the anterior sector showed statistically significant results (p = 0.027). Failed implants had a statistically significant relationship when they were placed in the anterior sector and were performed in the early stage.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Retrospective Study of Biohorizons® Implants Placed by Postgraduate Students at the University of Barcelona

et al. 2022

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“…Implant design, instrumentation protocols and surface treatments have been the primary focus of dental implant research, with particular attention given to modifications of the implant’s surface in order to stimulate cell migration and differentiation at the bone-to-implant interface ( 2 ). Although significant improvements have been achieved to reduce healing times of implant therapy, poor quality bone (e.g., low density) and systemic conditions (i.e., diabetes, metabolic syndrome, use of tobacco) are still considered challenging scenarios for implant dentistry, demanding extended healing periods and being frequently associated with higher risk for early implant failure ( 3 , 4 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of a local single dose administration of growth hormone on the osseointegration of titanium implants

Grossi¹,

Parra²,

Jalkh³

et al. 2022

Med Oral

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Background The aim of the present study was to evaluate the effect of different concentrations of growth hormone (GH) on endosteal implant’s surface at the early stages of osseointegration. Material and Methods Sixty tapered acid-etched titanium implants were divided into four groups: i) Collagen, used as a control group; and three experimental groups, where after collagen coating, GH was administered directly to the surface in varying concentrations: ii) 0.265 mg, iii) 0.53 mg, and iv) 1 mg. Implants were placed in an interpolated fashion in the anterior flange of C3, C4 or C5 of 15 sheep with minimum distance of 6 mm between implants. After 3-, 6- and 12-weeks of healing samples were harvested, histologically processed, qualitatively and quantitatively assessed for bone-to-implant contact (BIC) and bone area fraction occupancy (BAFO). Results Statistical analysis as a function of time in vivo and coating resulted in no significant differences for BIC and BAFO at any evaluation time point. Histological evaluation demonstrated similar osseointegration features for all groups with woven bone formation at 3 weeks and progressive replacement of woven for lamellar bone in close contact with the implant surface and within the implant’s threads. Conclusions A single local application of growth hormone to the surface of titanium implants did not yield improved implant osseointegration independent of healing time. Key words: Growth hormone, osseointegration, low density bones, metallic implants, sheep, bone-to-implant contact.

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“…Here, sufficient primary stability might be difficult to achieve. Therefore, modifications of the drilling technique or the macrodesign of the implant are recommended [ 7 , 8 , 9 ]. In regard to drilling techniques, undersized preparation creates an implant bed with a diameter that is significantly smaller than the implant diameter, resulting in an increase in primary stability [ 8 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Does the Modification of the Apical Geometry of a Dental Implant Affect Its Primary Stability? A Comparative Ex Vivo Study

et al. 2021

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(1) Background: Primary stability—one fundamental criterion for the success of dental implants—is influenced by implant geometry even if the effect of apical shape modifications on implant primary stability has not yet been examined. Therefore, the aim of the ex vivo study was to compare primary stability of implants differing in apically located screw threads (J-line) or a flat tip (K-line) only. (2) Methods: 28 implants of each group of the same diameter (4.3 mm) were randomly inserted into porcine bone blocks. The first group (9, 11 and 13 mm) was inserted into “hard”, the second (11 mm) into “soft” bone, here using a normal and an undersized drilling protocol. Insertion torque (Ncm), Periotest® value, resonance frequency (implant stability coefficient, ISQ) and push-out force (N) were measured. (3) Results: In “hard” bone, primary stability increased with increasing length in both groups but it was significantly higher in J-line (p < 0.03). An undersized preparation of the implant bed in “soft” bone resulted in a significant increase in primary stability in both groups. Here, J-line also showed a significantly increased primary stability when compared to equally prepared K-line (insertion torque: 37 Ncm vs. 26 Ncm; Periotest®: −6.5 vs. −4.3; push-out force: 365 N vs. 329 N; p < 0.05 each). (4) Conclusions: Primary stability is significantly higher with increasing implant length and apically located screw threads as well as with undersized drilling protocols. When preparing the implant site and subsequently selecting the implant system, modifying factors such as implant geometry (also at the tip) should be taken into account.

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Potential risk factors for early and late dental implant failure: a retrospective clinical study on 9080 implants

Cited by 63 publications

References 56 publications

Retrospective Study of Biohorizons® Implants Placed by Postgraduate Students at the University of Barcelona

Retrospective Study of Biohorizons® Implants Placed by Postgraduate Students at the University of Barcelona

Effects of a local single dose administration of growth hormone on the osseointegration of titanium implants

Does the Modification of the Apical Geometry of a Dental Implant Affect Its Primary Stability? A Comparative Ex Vivo Study

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