Risk factors associated with the stability of mini-implants and mini-plates: systematic review and meta-analysis

Mattos, Paola Marques de; Gonçalves, Flávio Magno; Basso, Isabela Bittencourt; Zeigelboim, Bianca Simone; Niwa, M; Stechman-Neto, José; Santos, Rosane Sampaio; Araújo, Cristiano Miranda de; Filho, Odilon Guariza

doi:10.1007/s00784-021-04212-z

Cited by 7 publications

(5 citation statements)

References 22 publications

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“…Commonly associated risk factors with the failure of mini plates were age, viability of the implantation site, and soft tissue characteristics (21). Additionally, the instability of the mini-plates used in skeletal anchorage was found to be higher in isolated mini-implants positioned in the mandibular region (22). The development of granulation tissue and a higher rate of inflammation were reported in the mini plate insertion cases; however, the difference was not statistically significant when compared with the mini screw cases (23).…”

Section: Mini Platesmentioning

confidence: 99%

Indication and Success Rates of Skeletal Anchorage System in Orthodontics

E. Najjar,

Ghander,

Al Almuaysh

et al. 2023

JOHS

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Skeletal anchorage systems, a pivotal innovation in orthodontics, involve the use of Temporary Anchorage Devices (TADs) or mini-implants, providing stable anchor points in the bone to facilitate precise tooth movements. This comprehensive review article aims to investigate the indications and success rates of skeletal anchorage systems in orthodontics. The research, initiated on November 2nd, 2023, involved an extensive examination of existing literature, utilizing databases like PubMed, Web of Science, and Cochrane. Various components, including mini-screws, mini plates, palatal, buccal shelf implants, and infrazygomatic implants, have enriched orthodontic diversity. Mini screws have displayed remarkable success rates, with most complications related to manageable soft tissue inflammation. Gingival health and smoking habits have been identified as influential factors in mini screw implant success. Mini plates offer sturdy anchorage with resistance to root damage and fracture, surpassing mini screws in overall success rate. Age, implantation site viability, and soft tissue characteristics influence their success. Palatal and buccal shelf implants provide exceptional stability, enhancing the results of fixed bracket appliances. The anterior palatal region is a preferred site for implantation. Infrazygomatic implants, while offering commendable stability, display failure rates within the range of 21-28%, with compromised oral hygiene, immediate loading, inflammation, tooth mobility, and a high mandibular plane angle as potential failure factor. These anchorage methods have expanded treatment possibilities, offering effective solutions for challenging orthodontic cases and ultimately improving patient outcomes.

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Section: Mini Platesmentioning

confidence: 99%

Indication and Success Rates of Skeletal Anchorage System in Orthodontics

E. Najjar,

Ghander,

Al Almuaysh

et al. 2023

JOHS

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“…Initially limited to clinical conditions in which high anchorage requirements were essential for the maximum retraction of the anterior teeth, the application to a wide range of complex three-dimensional tooth movements-including intrusion, extrusion, distalization, expansion, and protractionhas been envisioned, with a very high success rate achieved-above 80-90% [6,7]. This notwithstanding, differences in the success rates seem to occur in relation to the location of insertion, with mandibular placement presenting an increased risk of failure as compared to placement in the maxilla, as well as the option of inter-radicular placements in comparison to extra-alveolar locations, such as palatal placement [8][9][10]. Mini-implants further offer the benefits of a relatively low cost, placement in a single chairside procedure, better patient compliance, and the possibility for immediate loading, as osseointegration is not a requirement for effective functionality.…”

Section: Introductionmentioning

confidence: 99%

Effect of Splinting on Orthodontic Mini-Implant Tipping and Bone Histomorphometric Parameters: An In Vivo Animal Model Study

Fontes

Martín

Resende

et al. 2023

JFB

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This study aimed to address the stability of orthodontic mini-implants submitted to an immediate orthodontic functional load, in splinted or unsplinted conditions, further characterizing the histomorphometric parameters of the neighboring bone tissue, in an in vivo experimental model. Mini-implants (1.4 × 6.0 mm) were placed in the proximal tibia of New Zealand White rabbits and immediately loaded with a 150 g force. Tissue healing was characterized within 8 weeks. Microtomography was used to assess the mini-implants’ tipping and bone histomorphometric indexes. Loaded implants were evaluated in splinted and unsplinted conditions, with data being compared to that of unloaded mini-implants with the Kruskal–Wallis nonparametric test, followed by Dunn’s multiple comparison tests. The splinting of mini-implants submitted to immediate orthodontic loading significantly reduced the tipping to levels similar to those of unloaded mini-implants. Immediate loading further increased the histomorphometric indexes associated with bone formation at the peri-implant region, in both splinted and unsplinted conditions, with no significant differences between the tension and compression regions. Accordingly, within this experimental setting, splinting was found to lessen tipping and mini-implants’ displacement, without affecting the increased bone formation at the peri-implant region, induced by a functional orthodontic load.

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“…Innovative materials and technologies to improve implants primary stability are an intense research topic in dentistry [6]. The use of skeletal anchorage has been the subject of above 1500 scientific papers published in the recent two decades [7], and manufacturers provide more and more innovative solutions. As a result, multiple systematic reviews regarding the influence of OMIs geometry on treatment success rate can be found, generalizing and assessing multiple factors [7][8][9][10][11] and thematically specific [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…The use of skeletal anchorage has been the subject of above 1500 scientific papers published in the recent two decades [7], and manufacturers provide more and more innovative solutions. As a result, multiple systematic reviews regarding the influence of OMIs geometry on treatment success rate can be found, generalizing and assessing multiple factors [7][8][9][10][11] and thematically specific [12,13]. Clinical guidelines can be found in the literature referring to the influence of macrodesign of OMIs on success rate.…”

Section: Introductionmentioning

confidence: 99%

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How Does Orthodontic Mini-Implant Thread Minidesign Influence the Stability?—Systematic Review with Meta-Analysis

Jedliński

Janiszewska‐Olszowska

Mazur

et al. 2022

JCM

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Background: Clinical guidelines are lacking for the use of orthodontic mini-implants (OMIs) in terms of scientific evidence referring to the choice of proper mini-design. Thus, the present study aimed to investigate to what extent orthodontic mini-implant thread design influences its stability. Methods: Search was conducted in five search engines on 10 May. Quality assessment was performed using study type specific scales. Whenever possible, meta-analysis was performed. Results: The search strategy identified 118 potential articles. Twenty papers were subjected to qualitative analysis and data from 8 papers—to meta-analysis. Studies included were characterized by high or medium quality. Four studies were considered as low quality. No clinical studies considering the number of threads, threads depth, or TSF have been found in the literature. Conclusions: Minidesign of OMIs seems to influence their stability in the bone. Thread pitch seems to be of special importance for OMIs retention—the more dense thread—the better stability. Thread depth seems to be of low importance for OMIs stability. There is no clear scientific evidence for optimal thread shape factor. Studies present in the literature vary greatly in study design and results reporting. Research received no external funding. Study protocol number in PROSPERO database: CRD42022340970.

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Risk factors associated with the stability of mini-implants and mini-plates: systematic review and meta-analysis

Cited by 7 publications

References 22 publications

Indication and Success Rates of Skeletal Anchorage System in Orthodontics

Indication and Success Rates of Skeletal Anchorage System in Orthodontics

Effect of Splinting on Orthodontic Mini-Implant Tipping and Bone Histomorphometric Parameters: An In Vivo Animal Model Study

How Does Orthodontic Mini-Implant Thread Minidesign Influence the Stability?—Systematic Review with Meta-Analysis

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