mohamad aboualnaser-awatef shaar-oussama sandid- orthodontist-orthodontist paris france-Seminars in Orthodontics-Orthodontic & Dental Continuing Education, Seminars & Courses-orthodontist Kingdom of Saudi Arabia ksa-orthodontist qatar-orthodontist koweit-orthodontist emirats- lebanon beirut, dentist beirut lebanon-pediatric dentsitry beirut lebanon-dentiste orthodontiste beyrouth lebanon-pediatrique dentistrie beyrouth liban- periodontics lebanon-orthodontic lebanon-lebanese university dentistry-american university of beirut dentistry orthodontics-beirut arab university dentistry- universite saint joseph beirut dentistry-pediatre beyrouth liban-pediatrics beirut lebanon

1. 126-Temporary Anchorage Devices in
Orthodontics Miniscrews
failure
Awatef SHAAR (BAU-LB), Orthodontist.
Mohamad ABOULNASER- Orthodontist, BAU, Connecticut, USA.
Oussama SANDID- Orthodontist, D.C.D., D.U.O, C.E.S.B.B, C.E.S.O.D.F ,
S.Q.O.D.F, Paris. France.
Contact: dr.aboualnaser@hotmail.com
www.orthofree.com

2. 8-Reasons for mini-implants failure
• Based on the aforementioned considerations, the hypotheses about
mini-implant loss are as follows:
• 1) Deflection of maxillary and mandibular alveolar processes when
mini-implants are more cervically placed;
• 2) Mini-implants placed too near the periodontal ligament, with
normal intra-alveolar tooth movement;
• 3) Low bone density, low thickness and low alveolar bone volume;
• 4) Low alveolar cortical bone thickness;
• 5) Excessive pressure inducing trabecular bone microfracture;
• 6) Sites of higher anatomical weakness in the mandible and the
maxilla;
• 7) Thicker gingival tissue not considered when choosing the mini-
implant
http://www.scielo.br/pdf/dpjo/v19n2/2176-9451-dpjo-19-02-00018.pdf
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

3. 8a-Reasons for mini-implants failure
• Mini-implant loss due to placement in recent extraction site.
Alberto Consolaro , Fábio Lourenço Romano:http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

4. 8b-Reasons for mini-implants failure
• Mini-implant loss.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

5. • Mini-implant loss.
http://www.scielo.br/pdf/dpjo/v20n1/2176-9451-dpjo-20-01-00023.pdf
8B-placement failure in area of recent extraction
Awatef SHAAR , Mohamad ABOUALNASER , Oussama SANDID

6. 8c-Reasons for mini-implants failure
• Mini-implant near the dental root
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

7. 8d-Reasons for mini-implants failure
• Food debris around a mini-implant
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

8. 8e-Reasons for mini-implants failure
• Mini-implant placed in the periodontal ligament.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

9. 8f-Reasons for mini-implants failure
• Mucositis around a mini-implant.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

10. 8g-Reasons for mini-implants failure
• Mini-implant fracture during placement.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

11. 8h-Reasons for mini-implants failure
• Appropriate mini-implant placement.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

12. 8i-Reasons for mini-implants failure
• Mini-implant placed in the periodontal ligament.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

13. 8j-Reasons for mini-implants failure
• Mini-implant placed in free gingiva.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

14. 8k-Reasons for mini-implants failure
• Mini-implant placed in inappropriate alveolar bone.
Alberto Consolaro , Fábio Lourenço RomanoDOI: http://dx.doi.org/10.1590/2176-9451.19.2.018-024.oin
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

15. 8l-Reasons for mini-implants failure
• Maxillary sinus perforation by orthodontic anchor screws
https://www.researchgate.net/publication/278042696_Maxillary
_sinus_perforation_by_orthodontic_anchor_screws
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

16. 8m-Reasons for mini-implants failure
• Stats
Oussama SANDID - Mohamad ABOUALNASER- Awatef SHAAR

17. Incomplete osseointegration allowing for effective anchorage
with easy insertion and removal of the screw.
TADs-Osseointegration
Awatef SHAAR , Mohamad ABOUALNASER , Oussama SANDID