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

Valizadeh, Solmaz; Zafarmand, A. Hamid; Yazdi, Sara Hassan; Ahsaie, Mitra Ghazizadeh

doi:10.1155/2022/8257256

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…A length of 6.0 mm seemed to be preferable to avoid a collision against the tooth roots. Previous studies have reported that the interradicular distance was 2.4-6.5 mm in the maxillary palatal region and 2.4-3.3 mm in the buccal region [15,16]. As the diameter of miniscrews is usually about 1.5 mm, an error at the bottom of the hole of more than 0.5 mm might be critical.…”

Section: Discussionmentioning

confidence: 97%

The Impact of Drilling Guide Length of a Surgical Guide on Accuracy of Pre-Drilling for Miniscrew Insertion

Hamanaka,

Emori,

Ohama

et al. 2023

Applied Sciences

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Background: Temporary anchorage devices (TADs) are broadly used in orthodontic treatment. TADs must be placed accurately to avoid collision against tooth roots. To place miniscrews with a higher accuracy, a digitally designed surgical guide was proposed in previous studies. However, to our knowledge, there have been no articles that have assessed the minimal required length to achieve good drilling accuracy. The objective of the present study was to evaluate the accuracy of pre-drilling using computer-aided designed surgical guides with different lengths. Methods: A typodont model was scanned, and surgical guides of 3.0, 4.5, and 6.0 mm were designed. Duplicated typodonts and the surgical guides were printed with a 3D printer. Using these models and surgical guides, pre-drillings were performed. Freehand drilling was also conducted for the control. The drilled models were scanned with micro-computed tomography to evaluate the accuracy. Results: The mean errors at the tip of the drill were 0.44 mm, 0.61 mm, 0.41 mm, and 0.24 mm for the freehand drilling, and 3.0, 4.5, and 6.0 mm for the surgical guide, respectively. Conclusion: The results suggested that a longer surgical guide was recommended to achieve good insertion accuracy for a narrow interradicular space, and that 3.0 mm was enough when an error of 1.0 mm was acceptable for the insertion site.

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Section: Discussionmentioning

confidence: 97%

The Impact of Drilling Guide Length of a Surgical Guide on Accuracy of Pre-Drilling for Miniscrew Insertion

Hamanaka,

Emori,

Ohama

et al. 2023

Applied Sciences

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“…These concerns are consistent with recommendations from Smith and coworkers, who stressed the want for customized plans to maximize implant stability and minimize risks. 16…”

Section: Implications For Miniscrew Implant Placementmentioning

confidence: 99%

A cone beam computed tomography study on inter-radicular bone to determine the safe zone for miniscrew implants placement

Kumar,

Kumari,

Mona

et al. 2023

Int J Res Med Sci

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Background: This cone beam computed tomography (CBCT) examination aimed to determine the inter-radicular bone dimensions inside exceptional increase patterns and decide a safe region for the placement of miniscrew implants. Methods: The inter-radicular bone dimensions have been measured at particular websites within the maxillary and mandibular arches. The measurements were taken on the coastal stage, middle of the root, and apical stage of the selected teeth. Statistical evaluation was completed to compare the bone dimensions among distinctive boom styles. Results: The effects discovered giant variations in inter-radicular bone dimensions and the various increase styles. Class II and class III disorder exhibited narrower inter-radicular spaces as compared to class I disorder, especially in the maxillary arch. The crystal degree and middle of the root confirmed narrower dimensions than the apical level in all increase patterns. These findings provide valuable insights into the ability to secure zones for miniscrew implant placement primarily based on the patient's increased sample. Conclusions: This study highlights the importance of considering growth styles whilst planning miniscrew implant placement. Clinicians have to be cautious and select suitable websites for miniscrew insertion, particularly in sufferers with class II or class III disorder, to ensure the most excellent balance and avoid headaches related to inter-radicular bone dimensions. Tailoring implant placement to individual boom patterns can enhance the fulfilment and protection of orthodontic treatments utilizing miniscrew implants.

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Analysis of palatal marginal alveolar exostosis and palatal torus using cone‐beam computed tomography

Bittencourt,

Borba,

Gialain

et al. 2024

Journal of Anatomy

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The aim of the present study was to analyze palatal marginal alveolar exostosis (PMAE) and palatal torus (PT). Cone‐beam computed tomography (CBCT) of the maxilla in multiplanar sections and volumetric renderings were used to assess this. PT and PMAE were classified according to location and morphology. Height, width, length, and thickness of the overlying mucosa were determined. The prevalence of PT and PMAE was assessed according to sex and age group. The correlation between the occurrence of PMAE and PT was also evaluated. A total of 385 CBCT scans were examined. PT was found in 38.70% of the sample and located more frequently in the middle third of the maxilla (52.35%) with a flat shape (42.95%). PMAE was found in 54.80% of the sample, bilaterally in 56.40% of the cases, and located more frequently in the molar region (62.42%) in the form of small nodules (36.97%). The mucosa covering PMAE was generally thicker than that over PT. The use of CBCT for the identification of PT and PMAE in vivo showed high frequencies of both conditions. The occurrence of PMAE was independent of the presence of PT.

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

Cited by 5 publications

References 26 publications

The Impact of Drilling Guide Length of a Surgical Guide on Accuracy of Pre-Drilling for Miniscrew Insertion

The Impact of Drilling Guide Length of a Surgical Guide on Accuracy of Pre-Drilling for Miniscrew Insertion

A cone beam computed tomography study on inter-radicular bone to determine the safe zone for miniscrew implants placement

Analysis of palatal marginal alveolar exostosis and palatal torus using cone‐beam computed tomography

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