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Table 1 Summary of cases included in this review

From: Mandibular molar uprighting using orthodontic miniscrew implants: a systematic review

Author Direct/indirect Plane Tooth Insertion site MI size Quality
Sohn 2008 [10] Direct Transverse Lingually tilted #47 Buccal alveolar bone of #47 1.4 × 6 mm Lower medium
Park 2002 [12] Direct Sagittal and transverse Mesially and lingually tipped #47 (crossbite) Retromolar area (distobuccally, 10 mm from the distal surface of #47) 1.2 × 6 mm Lower medium
Direct Sagittal Mesially tipped lower second molar Retromolar area 1.2 × 8 mm Lower medium
Park 2004 [28] Direct Transverse #37 and #27 in crossbite 1) Palatally between #26 and #27 2) Mandibular alveolar bone, buccal to #37 Both: 30–40° to the long axes of teeth 1.2 × 10 in the maxillary alveolar bone and 1.2 × 6 in the mandibular alveolar bone Lower medium
Gracco 2007 [1] Direct Sagittal Mesially inclined #37 MI was inserted manually through the buccal hole of the steel plate, which provided the most perpendicular positioning of the bayonet and tube Length of 11 mm, head height of 2.25 mm, diameter of 0.8 mm at the tip and 1.25 mm at the head Lower medium
Lee 2007 [4] Direct Sagittal Mesially angulated 47 (locked) Mesially, in the buccal alveolus between #46 and #45 1.8 × 7 mm Lower medium
Direct Sagittal Mesially impacted #37 Mesially, in the buccal alveolus between #36 and #35 (in the 2nd phase: between #35 and #34 No information Lower medium
Direct Sagittal Mesially impacted #47 Retromolar area No information Lower medium
Celebi 2011 [29] Direct Sagittal and transverse and vertical #37 was mesially tipped and obliquely impacted under the distal bulge of #36 Buccal side between the first and second maxillary left molar’s roots 1.8 × 8 mm Upper medium
Allgayer 2013 [5] Direct Sagittal Mesially tipped lower second molars Retromolar area 2 × 9 mm Lower medium
Derton 2012 [15] Direct Sagittal Mesially tipped first molar Retromolar area 2 × 9 mm Lower medium
Direct Sagittal Third molar Two mini-implants mesially to the molar 2 × 9 and 1.5 × 8 mm Lower medium
Yun 2005 [13] Indirect Sagittal Mesially tipped and partially impacted the second molar Between the mandibular right second premolar and first molar No information Low
Lee 2009 [27] Direct Sagittal Second mandibular molar Between the right canine and the 1st premolar No information Upper medium
Nienkemper 2013 [26] Direct Sagittal Mesially tipped #37 Perpendicular to the edentulous alveolar ridge 2 × 11 mm Lower medium
Direct Sagittal Mesially tipped #47 Perpendicular to the edentulous alveolar ridge 2 × 11 mm Lower medium
Giancotti 2004 [3] Direct Sagittal Deeply impacted #37 (with overerupted #38) Retromolar area 2.3 × 7 mm Low
Sivolella 2012* [23] Direct Sagittal Mesially impacted #47 Retromolar area 2 × 12 mm Lower medium
Musilli 2010 [2] Direct Sagittal Mesially tipped #37 Retromolar area No information Low
Direct Sagittal Mesially tipped #37 Retromolar area No information Low
Indirect Sagittal Mesially tipped#37 and #46 Mesial to the molars (it is not mentioned if they were placed perpendicular to the alveolar ridge or obliquely and it is not clear from the pictures) No information Low
Greco 2012 [25] Direct Sagittal Mesially inclined #37 Retromolar area 1.3 × 12 mm Lower medium
Melo 2013 [31] 65 MIs direct 116 MIs indirect    Vertically positioned on the alveolar crest or perpendicular to the buccal face of the alveolar bone 7, 9, or 11 mm in length and 1.3 or 1.6 mm in diameter  
Padmaprabha 2015 [30] Direct Transverse and vertical Lingually tipped and supraerupted #46 In the interradicular region of #46 1.2 × 6 mm Upper medium
  1. *Five cases in total. Only one described. The rest are presented in the table