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Mona A. Montasser published an article in July 2018.
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0 bond strength
0 Orthodontic Brackets
0 vitro study
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(2008 - 2018)
(2008 - 2018)
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Article 2 Reads 1 Citation Reliability of Orthodontic Miniscrews: Bending and Maximum Load of Different Ti-6Al-4V Titanium and Stainless Steel Temp... Published: 05 July 2018
Materials, doi: 10.3390/ma11071138
Temporary anchorage devices (TADs) have been introduced into orthodontic clinical practice in order to allow tooth movements while avoiding strain on adjacent teeth. Miniscrews are available in the market with different diameters and materials. Accordingly, the purpose of the present report was to measure and compare the forces to bend and fracture different mini implants. Ti-6Al-4V titanium and stainless steel TADs of different manufacturers (Spider ScrewHDC; Mini Implants–Leone; Benefit–Orteam; Storm–Kristal) were evaluated. Two different diameters (1.5 mm and 2.0 mm) were tested. The sample included 10 unused specimens for each group, blocked in an Instron Universal Testing Machine, and a shear load was applied at the neck of the miniscrew. The force to bend the miniscrew was measured at 0.1 mm and 0.2 mm deflections. Also, the maximum force before screw fracture was recorded. Data were submitted for statistical analysis. Results showed significantly higher forces for 2.0 mm than 1.5 mm screws, both at 0.1 mm and 0.2 mm deflections and at maximum load. Moreover, no significant differences were reported between titanium and stainless steel miniscrews of equal diameters.
Article 3 Reads 1 Citation Influence of geometric design characteristics on primary stability of orthodontic miniscrews Published: 10 April 2018
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, doi: 10.1007/s00056-018-0131-7
Article 1 Read 0 Citations Racial and sex differences in timing of the cervical vertebrae maturation stages Published: 01 April 2017
American Journal of Orthodontics and Dentofacial Orthopedics, doi: 10.1016/j.ajodo.2016.09.019
Article 0 Reads 0 Citations Secular trends in the timing of skeletal maturation as assessed by the cervical vertebrae maturation method Published: 13 May 2016
European Journal of Orthodontics, doi: 10.1093/ejo/cjw040
Objective: To investigate the presence of secular trends in skeletal maturation of girls and boys as assessed by the use of cervical vertebrae bones.Materials and methods: The study compared two main groups: the first included data collected from the Denver growth study (1930s to 1960s) and the second included data collected from recent pretreatment records (1980s to 2010s) of patients from the orthodontic clinic of a North American University. The records from the two groups were all for Caucasian subjects. The sample for each group included 78 lateral cephalographs for girls and the same number for boys. The age of the subjects ranged from 7 to 18 years. Cervical vertebrae maturation (CVM) stages were directly assessed from the radiographs according to the method described by Hassel and Farman in which six CVM stages were designated from cervical vertebrae 2, 3, and 4.Results: The mean age of girls from the Denver growth study and girls from the university clinic in each of the six CVM stages was not different at P ≤0.05. However, the mean age of boys from the two groups was not different only in stage 3 (P = 0.139) and stage 4 (P = 0.211).Conclusions: The results showed no evidence to indicate a tendency for earlier skeletal maturation of girls or boys. Boys in the university group started their skeletal maturation later than boys in the Denver group and completed their maturation earlier. Gender was a significant factor affecting skeletal maturation stages in both Denver and university groups.
Article 4 Reads 2 Citations Archwire diameter effect on tooth alignment with different bracket-archwire combinations Published: 01 January 2016
American Journal of Orthodontics and Dentofacial Orthopedics, doi: 10.1016/j.ajodo.2015.06.026
Article 4 Reads 3 Citations In vitro study of the potential protection of sound enamel against demineralization Published: 22 May 2015
Progress in Orthodontics, doi: 10.1186/s40510-015-0080-2
The objective of this study was to study the potential protection effect of different treatments against sound enamel demineralization around orthodontic brackets.