Success of dental implants in patients with large bone defect and analysis of risk factors for implant failure: a non-randomized retrospective cohort study

Hasegawa, Takumi; Sasaki, Aki; Arimoto, Satomi; Yatagai, Nanae; Hiraoka, Yujiro; Takeda, Daisuke; Kakei, Yasumasa; Akashi, Mitsuru

doi:10.1007/s00784-021-04249-0

Cited by 4 publications

(6 citation statements)

References 49 publications

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“…Others state that a vertical augmentation above a threshold of 2.55 mm poses a substantial risk for complications 17 . Even so, the type of reconstruction is also based on other properties, such as location, local and systemic factors, as well as patients' characteristics 17–20 …”

Section: Indicationsmentioning

confidence: 99%

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Bone reconstruction of extensive maxillomandibular defects in adults

Kämmerer,

Al‐Nawas

2023

Periodontology 2000

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Reconstruction of significant maxillomandibular defects is a challenge that has been much discussed over the last few decades. Fundamental principles were developed decades ago (bone bed viability, graft immobilization). Clinical decision‐making criteria are highly relevant, including local/systemic factors and incision designs, the choice of material, grafting technique, and donor site morbidity. Stabilizing particulated grafts for defined defects—that is, via meshes or shells—might allow significant horizontal and vertical augmentation; the alternatives are onlay and inlay techniques. More significant defects might require extra orally harvested autologous bone blocks. The anterior iliac crest is often used for nonvascularized augmentation, whereas more extensive defects often require microvascular reconstruction. In those cases, the free fibula flap has become the standard of care. The development of alternatives is still ongoing (i.e., alloplastic reconstruction, zygomatic implants, obturators, distraction osteogenesis). Especially for these complex procedures, three‐dimensional planning tools enable facilitated planning and a surgical workflow.

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Section: Indicationsmentioning

confidence: 99%

“…17 Even so, the type of reconstruction is also based on other properties, such as location, local and systemic factors, as well as patients' characteristics. [17][18][19][20]…”

Section: Introduction and His Toric Al De Velopmentmentioning

confidence: 99%

Bone reconstruction of extensive maxillomandibular defects in adults

Kämmerer,

Al‐Nawas

2023

Periodontology 2000

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Section: Introductionmentioning

confidence: 99%

“…Survival rates of titanium implants have been extensively researched over the past few decades with reports suggesting 67–100% survival specifically in patients with head and neck cancer after surgical treatment [ 5 , 6 , 7 , 8 ]. In a recent retrospective multivariable analysis, survival and overall success of titanium implants were reported to be at 88.4% and 81.3% [ 8 ]. The factors that were identified as independent risk factors for implant failure included male gender, narrow diameter, shorter length and need for bone augmentation surgery during or prior to implant placement [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…In a recent retrospective multivariable analysis, survival and overall success of titanium implants were reported to be at 88.4% and 81.3% [ 8 ]. The factors that were identified as independent risk factors for implant failure included male gender, narrow diameter, shorter length and need for bone augmentation surgery during or prior to implant placement [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Factors Implicated in Zirconia Implant Fracture Placed within the Anterior Region—A Systematic Review

et al. 2022

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Background: To analyze the fracture resistance of zirconia implants within the anterior region and evaluate whether zirconia–zirconia implants can be a viable alternative to titanium implants. Methods: Four online databases (Cochrane Library, Ovid, PubMed, and Scopus) were searched for the period of January 2011 to July 2021. All studies that analyzed the in vivo clinical outcome of two-piece implants in the anterior region in English language were included. Results: The search strategy identified 242 studies. Of these studies, three studies were included for qualitative synthesis based on the pre-determined eligibility criteria. The results showed that there is significant difference in biological results, fractal behavior and other complications between one-piece and two-piece zirconia implants. Two-piece zirconia implants demonstrated favorable longevity and success rates within anterior maxillary in short-term trials. Conclusions: Although factors involved in fractures have been identified—sandblasting, implant diameter, occlusal load, age and implant coating—there is limited quantitative assessment to gauge the fracture resistance of two-piece zirconia implants. Hence, further research with long-term clinical evidence is required.

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Short implants compared to regular dental implants after bone augmentation in the atrophic posterior mandible: umbrella review and meta-analysis of success outcomes

Sáenz-Ravello,

Ossandón-Zúñiga,

Muñoz-Meza

et al. 2023

Int J Implant Dent

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Purpose To assess the body of evidence of short versus regular implants after bone augmentation (BA) in the atrophic posterior mandible in the context of implant treatment success outcomes. Methods Seven databases, two registries, and reference lists were searched for systematic reviews and meta-analysis (SR/MA), randomized controlled trials (RCTs) and longitudinal studies published in English, Spanish or German since 2012. Confidence in the SR/MA methodology was evaluated using AMSTAR-2 and the risk of bias of primary studies using Cochrane’s RoB 2.0 and ROBINS-I. A random-effects meta-analysis and a meta-regression were performed for continuous and dichotomous outcomes. GRADE approach was used to assess the certainty of the evidence. Results Eighteen SRs/MAs, most of them “critically low” and “low” confidence with substantial overlap, included 14 relevant RCTs with a high risk of bias. A cohort study with moderate risk of bias was added. Quantitative synthesis of 595 implants and 281 hemiarches/patients indicates that the use of short implants (< 10 mm) compared to regular implants and BA may reduce implant failure at 1-year follow-up, and marginal bone loss (MBL) at 3-, 5-, and 8-year follow-up; is likely to reduce the risk of biological complications at 1-, 3-, 5-, and 8-year follow-up; and may be the patient's preferred alternative. There is a correlation between bone height, MBL and biological complications. Conclusions The available evidence partially suggests that the use of short implants could decrease implant failure, MBL, and biological complications, and increase patient satisfaction. However, given the need for further RCTs and real-world evidence to fully evaluate short- and long-term outcomes, it would be prudent for clinicians to carefully consider the individual needs and circumstances of the patients before deciding whether to use short implants. Trial registration PROSPERO CRD42022333526 Graphical Abstract

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Success of dental implants in patients with large bone defect and analysis of risk factors for implant failure: a non-randomized retrospective cohort study

Cited by 4 publications

References 49 publications

Bone reconstruction of extensive maxillomandibular defects in adults

Bone reconstruction of extensive maxillomandibular defects in adults

Mechanical Factors Implicated in Zirconia Implant Fracture Placed within the Anterior Region—A Systematic Review

Short implants compared to regular dental implants after bone augmentation in the atrophic posterior mandible: umbrella review and meta-analysis of success outcomes

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