Soft tissue and incisor position changes in class I bimaxillary subjects after retraction using friction and frictionless mechanics
Braz. j. oral sci
;
22: e231702, Jan.-Dec. 2023. ilus
Article
in English
| LILACS, BBO
| ID: biblio-1509504
ABSTRACT
Aim:
Bimaxillary protrusion is a common condition observed irrespective of race and ethnicity and is a chief concern for patients who seek orthodontic treatment. The aim of this study was to compare and evaluate changes in soft tissue structures and incisor positions in class I bimaxillary protrusion subjects undergoing orthodontic therapy when friction and frictionless mechanics were used.Methods:
Two groups with a total of 40 patients aged 1830 years diagnosed with class I bimaxillary protrusion treated by extracting first premolars were considered for this study. Patients treated with friction mechanics were included in Group 1 and those treated with frictionless mechanics in Group 2. The digital lateral cephalograms were calibrated and analyzed using Nemoceph software. Selected landmarks were marked on pre- and post-treatment cephalograms and assessed for intra- and inter-group soft tissue and incisor position changes. Student's t-test was used to analyze the collected data using SPSS 20 software.Result:
Intragroup comparison revealed significant changes in both groups. Inter-group comparison of the selected parameters between groups 1 and 2 showed differences but without any statistical significance, except for the inter-incisal angle.Conclusion:
Pre- and post-treatment comparison analysis revealed significant soft tissue changes in both groups. However, the comparison between friction and frictionless mechanics showed no statistically significant changesSubject(s)
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Orthodontics
/
Tooth Extraction
/
Friction
/
Malocclusion
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2023
Type:
Article
Affiliation country:
India
Institution/Affiliation country:
Nitte (deemed to be) University/IN
Similar
MEDLINE
...
LILACS
LIS