Analysis of the therapeutic effects of orthodontic therapy with mandibular first molar extraction / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 543-546, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-454214
ABSTRACT
Objective:
To evaluate the therapeutic effects of orthodontic therapy with mandibular first molar extraction.Methods:
77 cases of malocclusion were divided into 3 groupsBilateral mandibular first premolar extraction group(A,30 cases),unilateral man-dibular first molar extraction group(B,27cases)and bilateral mandibular first molar extraction group(C,20 cases).The OGS indexes were measured before and after orthodontic treatment and statistically analysed.Results:
Remarkable occlusal improvement was seen in all three groups after treatment(P0.05).OGS indexes among the three groups after treatment were significantly different(P<0.05).The improvement in group A was more significant than that in group C(P<0.01)and the improvement in group C was more significant than that in group B(P<0.01).Conclusion:
Orthodontic therapy with bilateral mandibular first molar extraction is effective in orthodontic treatment of malocclusion, but is not as effective as that with bilateral mandibular first premolar extraction.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2014
Type:
Article
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