Molar intrusion with orthodontic mini-implants: case reports

Tiago, Carollyne Mota; Previdente, Luis

doi:10.1590/1981-8637201600030000133274

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…8 TADs provide absolute anchorage for many types of orthodontic treatment such as intrusion and distalization. [9][10][11] TADs improve patient compliance are small and easy to insert and remove, and can be loaded immediately after insertion. [12][13][14][15][16] Yet, the use of orthodontic mini-implants is not without risk; several studies have described miniscrew failure rates and causes of mini-screw failure.…”

Section: Introductionmentioning

confidence: 99%

Use of orthodontic mini-screws among orthodontists in Saudi Arabia

Fatani¹,

Eskandrani²,

Alfadil³

2019

Int J Res Med Sci

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Background: Orthodontic anchorage is a technique used to avoid undesired tooth movement. The miniature screw (mini-screw) implant is an orthodontic innovation that was introduced to circumvent the limitations of conventional anchorage systems. Mini-screws, known as temporary anchorage devices (TADs), give clinicians good control over tooth movement in 3 dimensions and can assist orthodontists in anchorage-demanding cases.Methods: A questionnaire was distributed by online survey using SurveyMonkey and on paper during orthodontic meetings in Saudi Arabia. Collected data were analyzed using SPSS statistical software (version 23, IBM). A 2-way cross-tabulation and Fisher’s exact or Pearson chi-square tests were used to evaluate statistically significant differences. A P-value < 0.05 was considered to be statistically significant.Results: Of 133 respondents, 72 (54.1%) of practitioners worked in the governmental sector and 61 (45.9%) worked in the private sector. A total of (87.3%) of practitioners in the governmental sector and (80%) of practitioners in the private sector reported using mini-screws in clinical practice. Practitioners who reported that they did not use mini-screws in clinical practice listed the following reasons: “I don’t have enough information” (33.3%), “It’s a surgeon’s job” (11.1%), “Not available in the hospital” (29.6%), and “Other” (25.9%). A total of 60.2% of practitioners loaded mini-screws immediately, 8.3% loaded them 1 week after implantation, 11.3% loaded them 2-3 weeks after implantation, and 3.8% loaded them >3 weeks after implantation. Regarding the method of placement, 63.2% of practitioners used radiography for placement guidance/confirmation, 9.8% used a self-made guide, and 8.3% did not use a guide.Conclusions: Lack of education and training are major reasons that practitioners do not use orthodontic mini-screws in Saudi Arabia. Increased efforts to organize seminars and workshops may motivate practitioners to incorporate mini-screw usage into routine practice.

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Section: Introductionmentioning

confidence: 99%

Use of orthodontic mini-screws among orthodontists in Saudi Arabia

Fatani¹,

Eskandrani²,

Alfadil³

2019

Int J Res Med Sci

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New material of Carolocoutoia ferigoloi (Mammalia, Marsupialia, Didelphimorphia): Systematic affinities and dietary inferences

Carneiro,

Zanesco,

Bergqvist

et al. 2024

Journal of South American Earth Sciences

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Metal Ion Release and Cytotoxicity of Titanium Orthodontic Miniscrews

Kosayadiloka

Tangjit

Luppanapornlarp

et al. 2017

KEM

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The aim of this study was to investigate the metal ion release and cytotoxicity of MU orthodontic miniscrews as well as two other brands of orthodontic miniscrews over time. Twenty-four orthodontic miniscrews were tested, divided into three groups of eight. Each sample extraction was performed following the ISO 10993-12:2012 method. Solutions were collected after 1, 7, and 30 days (T1, T2, and T3). The supernatants extracted from these three groups were added and exposed to mouse L929 fibroblastic cell line using an MTT cytotoxicity test. They were also tested for ion release by inductively coupled plasma-mass spectrometry (ICP-MS). Element analysis by energy-dispersive X-ray spectroscopy (EDS) was used to analyze the surfaces of the miniscrews. The quantification of three elements, namely, titanium (Ti), aluminum (Al), and vanadium (V) were assessed. The results indicated that there were no statistical differences between the self-made orthodontic miniscrews and those from two commercial groups (p<0.05). Throughout the testing period, the quantity of ions increased from T1 to T3. After 24 h, vanadium was the first to appear on the surface in small quantities in other two commercial groups. The self-made orthodontic miniscrews exhibited no toxic effects on living cells.

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Molar intrusion with orthodontic mini-implants: case reports

Cited by 5 publications

References 9 publications

Use of orthodontic mini-screws among orthodontists in Saudi Arabia

Use of orthodontic mini-screws among orthodontists in Saudi Arabia

New material of Carolocoutoia ferigoloi (Mammalia, Marsupialia, Didelphimorphia): Systematic affinities and dietary inferences

Metal Ion Release and Cytotoxicity of Titanium Orthodontic Miniscrews

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