作者
Sumit Gulati, OP Kharbanda, Hari Parkash
发表日期
1998/9/1
期刊
American Journal of Orthodontics and Dentofacial Orthopedics
卷号
114
期号
3
页码范围
319-327
出版商
Mosby
简介
The present study was conducted on 10 subjects to evaluate dental and skeletal changes after intraoral molar distalization. The maxillary molars were distalized with a sectional jig assembly. Sentalloy open coil springs were used to exert 150 gm of force for a period of 12 weeks. A modified Nance appliance was the main source of anchorage. The pre- and postdistalization records included dental study casts, clinical photographs, and cephalograms. A total of 665 readings recorded from lateral cephalograms and dental casts were subjected to statistical analysis. The mean distal movement of the first molar was 2.78 mm, which was highly significant (p < 0.001). It moved distally at the rate of 0.86 mm/month. There was clinically some distal tipping (3.50°) and distopalatal rotation (2.40°). These changes were statistically significant (p < 0.001). The second molars accompanied the first molars and moved distally by …
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S Gulati, OP Kharbanda, H Parkash - American journal of orthodontics and dentofacial …, 1998