Treatment and posttreatment changes following intrusion of maxillary posterior teeth with miniscrew implants for open bite correction / 대한치과교정학회지
Korean Journal of Orthodontics
; : 31-40, 2008.
Article
in Korean
| WPRIM (Western Pacific)
| ID: wpr-656989
Responsible library:
WPRO
ABSTRACT
OBJECTIVE:
This study investigated the skeletal and dentoalveolar changes after intrusion of maxillary posterior teeth using miniscrew implants during the treatment and posttreatment period.METHOD:
The subjects consisted of 11 adults (1 male, 10 females) whose open bites were treated by posterior teeth intrusion with miniscrew. The lateral cephalometric x-rays of pre-treatment, post-treatment, and the retention period were evaluated.RESULTS:
The average intrusion of maxillary posterior teeth at the end of the treatment period was 2.22 mm (p < 0.001) and the average extrusion of maxillary posterior teeth at the end of the 17.4 month retention period was 0.23 mm (p = 0.359). The relapse rate was calculated at 10.36%. A decrease in overbite after the 17.4 month retention period was 0.99 mm (p < 0.05). The relapse rate was calculated at 18.10%. The skeletal changes and vertical height change of maxillary posterior teeth during the retention period was statistically insignificant, but there was a significant decrease in overbite (mean 0.99 mm, p < 0.05). The amount of intrusion and the overbite improvement from treatment significantly correlates to the degree of relapse.CONCLUSIONS:
The results indicate that intrusion of the maxillary posterior teeth using miniscrews is an effective, non-surgical treatment modality which can reasonably be used to address adult open bite.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Recurrence
/
Retention, Psychology
/
Tooth
/
Bites and Stings
/
Open Bite
/
Overbite
Limits:
Adult
/
Humans
/
Male
Language:
Korean
Journal:
Korean Journal of Orthodontics
Year:
2008
Document type:
Article