The effects of cortical bone thickness and miniscrew implant root proximity on the success rate of miniscrew implant: a retrospective study

2021 ◽  
Author(s):  
Shuting Zhang ◽  
Yuhsin Choi ◽  
Wa Li ◽  
Danni Shi ◽  
Pei Tang ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Success Rate ◽  
Cortical Bone ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Miniscrew Implant ◽  
Root Proximity

scholarly journals Root proximity and cortical bone thickness effects on the success rate of orthodontic micro-implants using cone beam computed tomography

2012 ◽  
Vol 82 (6) ◽  
pp. 1014-1021 ◽  
Author(s):  
Kyung-Inn Min ◽  
Sang-Cheol Kim ◽  
Kyung-Hwa Kang ◽  
Jin-Hyoung Cho ◽  
Eon-Hwa Lee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Success Rate ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Root Proximity ◽  
Micro Implants

Cortical bone thickness at common miniscrew implant placement sites

2011 ◽  
Vol 139 (4) ◽  
pp. 495-503 ◽  
Author(s):  
David Farnsworth ◽  
P. Emile Rossouw ◽  
Richard F. Ceen ◽  
Peter H. Buschang
Keyword(s):  
Cortical Bone ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Implant Placement ◽  
Miniscrew Implant

Evaluation of cortical bone thickness and root proximity at maxillary interradicular sites for mini-implant placement

2011 ◽  
Vol 24 ◽  
pp. 1-7 ◽  
Author(s):  
Kosaku Sawada ◽  
Ken Nakahara ◽  
Satoru Matsunaga ◽  
Shinichi Abe ◽  
Yoshinobu Ide
Keyword(s):  
Cortical Bone ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Implant Placement ◽  
Root Proximity

scholarly journals Three-dimensional evaluation of interradicular areas and cortical bone thickness for orthodontic miniscrew implant placement using cone-beam computed tomography

2020 ◽  
Vol 12 (5) ◽  
pp. 99
Author(s):  
MoodeKaladhar Naik ◽  
Garadappagari Dharmadeep ◽  
YellampalliMuralidhar Reddy ◽  
Sreekanth Cheruluri ◽  
Kranthi Praveen Raj ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cortical Bone ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Cone Beam ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Implant Placement ◽  
Miniscrew Implant

scholarly journals Influence of the growth pattern on cortical bone thickness and mini-implant stability

2020 ◽  
Vol 25 (6) ◽  
pp. 33-42
Author(s):  
Carolina Carmo de Menezes ◽  
Sérgio Estelita Barros ◽  
Diego Luiz Tonello ◽  
Aron Aliaga-Del Castillo ◽  
Daniela Garib ◽  
...  
Keyword(s):  
Success Rate ◽  
Cortical Bone ◽  
Cortical Thickness ◽  
Growth Pattern ◽  
Alveolar Bone ◽  
Insertion Site ◽  
Bone Thickness ◽  
Cortical Bone Thickness ◽  
Mini Implants ◽  
The Stability

ABSTRACT Introduction: Controversial reports suggest a relationship between growth pattern and cortical alveolar bone thickness, and its effect in the use of mini-implants. Objective: The main purpose of this study was to assess the influence of the growth pattern on the cortical alveolar bone thickness and on the stability and success rate of mini-implants. Methods: Fifty-six mini-implants were inserted in the buccal region of the maxilla of 30 patients. These patients were allocated into two groups, based on their growth pattern (horizontal group [HG] and vertical group [VG]). Cortical thickness was measured using Cone Beam Computed Tomography. Stability of mini-implants, soft tissue in the insertion site, sensitivity during loading and plaque around the mini-implants were evaluated once a month. Intergroup comparisons were performed using t tests, Mann-Whitney tests, and Fisher exact tests. Correlations were evaluated with Pearson’s correlation coefficient. Results: The cortical bone thickness was significantly greater in the HG at the maxillary labial anterior region and at the mandibular buccal posterior and labial anterior regions. There was a significant negative correlation between Frankfort-mandibular plane angle (FMA) and the labial cortical thickness of the maxilla, and with the labial and lingual cortical bone thicknesses of the mandible. No significant intergroup difference was found for mini-implant mobility and success rate. No associated factor influenced stability of the mini-implants. Conclusions: Growth pattern affects the alveolar bone cortical thickness in specific areas of the maxilla and mandible, with horizontal patients presenting greater cortical bone thickness. However, this fact may have no influence on the stability and success rate of mini-implants in the maxillary buccal posterior region.

scholarly journals Torque Requirements and the Influence of Pilot Holes on Orthodontic Miniscrew Microdamage

2021 ◽  
Vol 11 (8) ◽  
pp. 3564
Author(s):  
Sven W. Jensen ◽  
Emilija D. Jensen ◽  
Wayne Sampson ◽  
Craig Dreyer
Keyword(s):  
Cortical Bone ◽  
Confocal Laser ◽  
Insertion Torque ◽  
Bone Thickness ◽  
Pilot Hole ◽  
Cortical Bone Thickness ◽  
Damage Characteristics ◽  
Miniscrew Implant ◽  
Different Thickness ◽  
Microscopy Images

This study aimed to quantify the microdamage to cortical bone of different thickness and the maximum insertion torque during orthodontic miniscrew implant (OMI) placement with and without a pilot hole. Forty-five porcine bone specimens were prepared with thicknesses of 1.5, 2 and 2.5 mm. Ten bone specimens per thickness had a pilot hole drilled prior to the insertion of an OMI, and the remaining 15 bone specimens had an OMI without a pilot hole inserted. Sequential staining was used to identify damage caused by bone preparation and surface microdamage from OMI insertion and confocal laser microscopy images were used to quantify damage characteristics. Of the five damage characteristics, only one decreased when a pilot hole was used for all bone specimens (p = 0.025), while two increased as cortical bone thickness increased (p = 0.0064, p = 0.0003). There was no evidence that maximum insertion torque differed according to pilot hole status (p = 0.1144) and increased as cortical bone thickness increased (p = 0.0001). The presence of a pilot hole had minimal effect on microdamage characteristics and no effect on maximum insertion torque. As cortical bone thickness increased, an increase in microdamage and in maximum insertion torque was observed.

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