Cephalometric study of alveolar remodeling during incisor retraction
- VernacularTitle:正畸内收上切牙对上颌牙槽骨改建的临床研究
- Author:
Tianmin XU
;
Yan LIU
;
Jiuhui JIANG
- Publication Type:Journal Article
- Keywords:
Tooth movement;
Absorption of alveolus;
Apposition of alveolus
- From:
Journal of Practical Stomatology
1995;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the remodeling of alveolar process following anterior teeth retraction. Methods: Cephalograms of pretreatment (T1), posttreatment (T2) and follow-up (T3) of 55 cases with four first premolars extracted were collected as the study samples. All the lateral head films were traced on the acetate. Palate best fit superimposition was used to transfer pretreatment SN to posttreatment and follow-up cephalograms and to evaluate the displacement of upper incisor teeth roots and the remodeling of alveolar bone. The average of the two measurements was processed by SPSS statistical package. Results:The CRE of upper incisor moved backward 1.8 mm(P05) in SN frame of reference. The width of alveolus on the labial side at the same level increased 0.2 mm (P
