Effects of Intrabony Length and Cortical Bone Density on the Primary Stability of Orthodontic Miniscrews

Jin, Jie; Kim, Gi-Tae; Kwon, Jae‐Sung; Choi, Sung‐Hwan

doi:10.3390/ma13245615

Cited by 12 publications

(8 citation statements)

References 39 publications

(34 reference statements)

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“…In this study, the highest buccal and palatal depth is detected between first molar and second molar. Jin et al indicated that regardless of the cortical bone density, more energy was required to remove the miniscrews as the implantation depth increased, indicating higher resistance and less risk of falling out [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

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Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Miniscrew Insertion Using Cone Beam Computed Tomography: A Cross-Sectional Analysis

Valizadeh

Zafarmand

Yazdi

et al. 2022

International Journal of Dentistry

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Background and Aim. The aim of this study is to assess the cortical bone thickness and interradicular distance between posterior maxillary teeth using cone beam computed tomography (CBCT). Methods and Materials. Cone beam computed tomography records of 35 patients (70 quadrants) from maxilla were evaluated. The images were analyzed using the NNT viewer software (version 23). The measurements were made on axial sections at 2, 4, 6, and 8 mm from CEJ. The optimal sites were defined in terms of mesiodistal palatal or buccal interradicular distance, alveolar cortical bone thickness, and palatal or buccal safe depth of the bone for miniscrew insertion. Descriptive statistics, paired t-test, and repeated measure ANOVA were used to analyze the data. Results. The mean buccal interradicular distance was the lowest between first and second molar (2.44 mm) and the highest between first and second premolar (3.28 mm). The mean palatal interradicular distance was the lowest between first and second premolar (3.64 mm) and the highest between second premolar and first molar (5.30 mm). The mean buccal safe depth was the lowest between canine and first premolar (1.96 mm) and the highest between first and second molar (2.61 mm). The mean palatal safe depth was the lowest between second premolar and first molar (3.35 mm) and the highest between first and second molar (3.56 mm). The thinnest and thickest buccal cortical thicknesses were detected on canine and first molar (1.04 mm) and on the second premolar and second molar (1.56 mm). Conclusion. The quantity and quality of the maxillary alveolar process is an important factor to decide where to insert the orthodontic miniscrews, necessitating careful preoperative evaluation.

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Section: Discussionmentioning

confidence: 99%

“…Various studies have mentioned complications in applications of miniscrews [ 6 , 10 , 11 ]. Lack of initial stability in the bone is one of the main reasons for miniscrew failures.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Miniscrew Insertion Using Cone Beam Computed Tomography: A Cross-Sectional Analysis

Valizadeh

Zafarmand

Yazdi

et al. 2022

International Journal of Dentistry

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show abstract

“…In this study, the highest buccal and palatal depth is detected between rst molar and second molar. Jin et al, indicated that regardless of the cortical bone density, more energy was required to remove the miniscrews as the implantation depth increased, indicating higher resistance and less risk of falling out (10).…”

Section: Discussionmentioning

confidence: 99%

“…Various studies have mentioned complications in applications of mini-screws (6,10,11). Lack of initial stability in bone is one of the main reasons for mini-screw failures.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Mini-screw Insertion Using Cone Beam Computed Tomography- a Cross Sectional Analysis

Valizadeh

Zafarmand

Hasanyazdi

et al. 2021

Preprint

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Background and aimThe aim of this study is to assess the cortical bone thickness and inter-radicular distance between posterior maxillary teeth using Cone Beam Computed Tomography (CBCT).Methods and materialCone beam computed tomography records of 35 patients (70 quadrants) from maxilla were evaluated. The images were analyzed using NNT viewer Software (Version 23). The measurements were made on axial sections at 2, 4, 6 and 8 mm from the CEJ. The optimal sites were defined in terms of (a) mesiodistal palatal or buccal inter-radicular distance, (b) alveolar cortical bone thickness and (c) palatal or buccal safe depth of bone for mini-screw insertion. Descriptive statistics, paired T-test and repeated measure ANOVA were used to analyze the data.ResultsThe mean buccal inter-radicular distance was lowest between first and second molar (2.44 mm) and highest between first and second premolar (3.28 mm). The mean palatal inter-radicular distance was lowest between first and second premolar (3.64 mm) and highest between second premolar and first molar (5.30 mm).The mean buccal safe depth was lowest between canine and first premolar (1.96 mm) and highest between first and second molar (2.61 mm). The mean palatal safe depth was lowest between second premolar and first molar (3.35 mm) and highest between first and second molar (3.56 mm). The thinnest and thickest buccal cortical thickness was detected on canine and first molar (1.04 mm) and on the second premolar and second molar (1.56 mm). ConclusionThe quantity and quality of the maxillary alveolar process is an important factor to decide where to insert the orthodontic mini screws, necessitating careful preoperative evaluation.

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“…Але стабільність або ступінь рухливості мініімпланту досить субʼєктивний критерій. Відомо, що на первинну стабільність мініімплантів впливає як щільність кортикальної кістки, так і внутрішньокісткова довжина самого імпланту [59]. І єдине, на що ми можемо орієнтуватись при встановленні мініімпланту -це крутний момент, який не має перевищувати 10 Nсм [55].…”

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Retention of Mandibular Molars: Etiological Factors, Current Diagnostic Approaches, and Treatment Options

Shaienko

2023

Act. Probl. of the Modern Med.

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The problem of tooth eruption is a common issue affecting nearly 20% of the population. Along with this, there is a growing trend of increased dentoalveolar anomalies in children and adults. One of such anomalies is the retention of the mandibular molars, which has always been a complex dentoalveolar pathology posing clinical challenges for orthodontists and oral surgeons. The aim of this study is to review and analyze relevant literature sources regarding the current etiological factors, diagnostic methods and treatment options for the retention of the mandibular molars. Tooth eruption is a complex and highly regulated process, which is currently the subject of research by many authors. There are various theories about the process of tooth eruption, often contradicting each other. Retention of molars should be considered as a pathological phenomenon with a multifactorial aetiology. Consequently, the approach to the diagnosis and treatment of this pathology cannot be standardized or unified. Therefore, there is a tendency to personalized approach both in the diagnosis and treatment of patients with dentoalveolar anomalies. In most cases, the diagnosis of molar retention is based on a clinical and x-ray examination. Notably, decision-making and treatment strategy selection rely on constantly evolving methods. Unfortunately, the acceleration and early completion of bone tissue maturation increase the frequency of tooth retention, pushing clinicians towards the early intervention. This, in turn, requires a revision of existing recommendations and protocols. The development of technology and the modern possibilities of digital planning open up new horizons and provide tools for addressing complex challenges; however, they require a multidisciplinary approach to implementing non-standard treatment methods involving both orthodontists and oral surgeons. Apparently, all novel techniques require careful analysis, which provides researchers with space for further investigations.

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Effects of Intrabony Length and Cortical Bone Density on the Primary Stability of Orthodontic Miniscrews

Cited by 12 publications

References 39 publications

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Miniscrew Insertion Using Cone Beam Computed Tomography: A Cross-Sectional Analysis

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Miniscrew Insertion Using Cone Beam Computed Tomography: A Cross-Sectional Analysis

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Mini-screw Insertion Using Cone Beam Computed Tomography- a Cross Sectional Analysis

Retention of Mandibular Molars: Etiological Factors, Current Diagnostic Approaches, and Treatment Options

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