An efficacy comparison between pre-adjusted and Begg appliance on the dentofacial morphology in Angle class Ⅱ division 1 extraction cases treated by light archwire technique / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 678-681, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-618605
ABSTRACT
Objective:
To compare the effects between Begg and pre-adjusted appliance on dentofacial morphology in Angle class Ⅱ division 1 extraction cases treated by light archwire technique.Methods:
28 cases with Angle class Ⅱ division 1 who needed maximum maxillary incisor retraction were divided into 2 groups (MBT pre-adjusted and Begg group) and treated by light archwire technique.4 first premolars were extracted in all patients.Lateral cephalometric films were analyzed before and after treatment.Results:
The upper incisors were intruded (0.18 ± 0.32)mm and (0.77 ± 0.91) mm in pre-adjusted and Begg group respectively (P < 0.05).The other differences of cephalometric analyses between 2 groups were not significant (P > 0.05).Conclusion:
The effects were almost same with pre-adjusted and Begg appliances in Angle class Ⅱ division 1 extraction cases treated by light archwire technique except for that the latter is better than the former in vertical control of maxillary anterior teeth.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2016
Type:
Article
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