Effect of the length of orthodontic mini-screw implants on their long-term stability: <i>A prospective study</i>

Sarul, Michał; Minch, Liwia; Park, Hyo‐Sang; Antoszewska-Smith, Joanna

doi:10.2319/112113-857.1

Cited by 44 publications

(29 citation statements)

References 26 publications

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“…Since their introduction in orthodontic practice, mini-screw implants (MSIs) have been extensively used and investigated 1,2,3,4,5,6 . Previous studies have reported success rates varying from 74% to 93% 3,7,8,9,10 . However, variables that directly interfere with implant stability have remained unclear 3,5,10,11 .…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have reported success rates varying from 74% to 93% 3,7,8,9,10 . However, variables that directly interfere with implant stability have remained unclear 3,5,10,11 .…”

Section: Introductionmentioning

confidence: 99%

“…A study showed that MSIs 4-6 mm in length were safe in most regions of the maxilla and mandible 14 . However, it remains unknown whether a shorter screw length is associated with an increased failure rate 10,13 . Reducing MSI diameter can also decrease the risk of root contact; however, several groups 2,7 observed a greater impact of MSI diameter on primary stability.…”

Section: Introductionmentioning

confidence: 99%

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Risk factors associated with the failure of miniscrews - A ten-year cross sectional study

et al. 2016

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The aims of this study were to identify (1) patient-related factors (sex, age, craniofacial pattern and smoking habit), (2) miniscrews implants (MSI)-related factors (length and diameter) and (3) location-related factors [bone (maxilla or mandible) and area (buccal, lingual and alveolar ridge)] that may be associated with MSI loss of stability. A total of 1356 MSI were installed in 570 patients (423 females and 147 males) with mean age of 42.7 during a 10-year period and were clinically evaluated once a month until the end of the proposed movement. Length (5, 7, 9 and 11 mm) and diameter (1.3, 1.4 and 1.6 mm) of the MSI were selected according to insertion site. The evidence of clinical mobility during treatment or fracture during insertion was considered as failure. A total success rate of 89.1% was observed. There was no statistically significant difference in loss of stability when considering age, sex, craniofacial pattern or smoking habit. Considering diameter, there was no statistically significant difference (p = 0.645), but the shorter miniscrews (5 mm) showed higher failure rates (p < 0.001) than the longer ones. There were more loses (p < 0.001) in the mandible than in the maxilla, but the area (buccal, lingual or alveolar ridge) did not interfere in the results (p = 0,421). It can be concluded that MSIs are effective for skeletal anchorage in orthodontics. Patient-related factors, such as sex, age, smoking habit and craniofacial pattern, did not affect MSI success. However, the use of shorter MSIs (5 mm) was inversely proportional to failure probability, and loss of stability was greater in the mandible.

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Section: Introductionmentioning

confidence: 99%

“…Previous studies have reported success rates varying from 74% to 93% 3,7,8,9,10 . However, variables that directly interfere with implant stability have remained unclear 3,5,10,11 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Risk factors associated with the failure of miniscrews - A ten-year cross sectional study

et al. 2016

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“…The study of Wilmes et al 7 supported this result, as the authors similarly found 1.1 mm screw stability fairly lower than 1.6 mm ones. In turn, Chen et al 8 and Sarul et al 9 , while investigating the impact of micro-implant length, concordantly reported that screws 8 mm long are more stable than 6 mm ones. Last but not least, two independent meta-analyses by Crismani et al 10 and Dalessandri et al 11 have validated these outcomes and stated that sizes of minimum 1.2 × 8 mm and 1.3 × 8 mm, respectively, ensure sufficient primary stability of micro-screws.…”

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confidence: 77%

Fundamental factors related to orthodontic micro-implant stability: Review of the literature

Łyczek¹,

Antoszewska-Smith²

2017

Dent. Med. Probl.

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The development and introduction of temporary intraoral anchorage devices (TISAD) in the beginning of the 21 st century had a great impact on contemporary orthodontics. The enhancement of the scope of orthodontic treatment, improved efficiency, reduction of both the treatment time and need for the patient's compliance, all of these are the crucial advantages the TISAD have provided to our profession. However, there are also some limiting factors pertaining to this anchorage reinforcement technique which must be borne in mind prior to clinical application. Among some others, premature failure of the micro-implants is the most significant problem related to their utilization, as it entails a repetition of the insertion procedure, increasing the cost and duration of treatment and causing the patient's discomfort. Therefore, recognition of the factors related to the stability of orthodontic micro-implants is necessary for their efficient clinical application and maximum survival rates. Since over the last decade there has been noteworthy progress in the research investigating the issue of micro-implant stability, a review of the most current literature pertaining to this topic was the aim of our article, and ultimately providing clinical recommendations.

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“…There was no initial difference in grip nor in shape or strength 45,49 , be it conical or cylindrical. There is a recommended length of >8 mm at the maxilla and 6 mm at the mandible 42 ; regardless of the NEW PARAMETERS FOR IMPROVED STABILITY OVER TIME New perspectives on miniscrews: improving stability 48 . The bone-related criteria play an important role in the short-term success rate 30,31,51 .…”

Section: Doi: 101051/odfen/2016020mentioning

confidence: 99%

New perspectives on miniscrews: improving stability

Brézulier

Sorel

2016

J Dentofacial Anom Orthod

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Effect of the length of orthodontic mini-screw implants on their long-term stability: A prospective study

Abstract: The length of the TISAD/TAD may be one of the factors that can affect the long-term success rate in the mandibles of 20- to 29-year-old women.

Cited by 44 publications

References 26 publications

Risk factors associated with the failure of miniscrews - A ten-year cross sectional study

Risk factors associated with the failure of miniscrews - A ten-year cross sectional study

Fundamental factors related to orthodontic micro-implant stability: Review of the literature

New perspectives on miniscrews: improving stability

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