Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study
Most of Class II malocclusions are due to underdeveloped mandible with increased overjet and overbite. Lack of incisal contact results in the extrusion of the upper and lower anterior dentoalveolar complex, which helps to lock the mandible and prevent its normal growth and development, and this abno...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Wolters Kluwer Medknow Publications
2012-01-01
|
Series: | Journal of Indian Society of Pedodontics and Preventive Dentistry |
Subjects: | |
Online Access: | http://www.jisppd.com/article.asp?issn=0970-4388;year=2012;volume=30;issue=3;spage=218;epage=226;aulast=Sharma |
id |
doaj-bfadbe8e3b844121b92b5dde97c1a332 |
---|---|
record_format |
Article |
spelling |
doaj-bfadbe8e3b844121b92b5dde97c1a3322020-11-24T22:16:55ZengWolters Kluwer Medknow PublicationsJournal of Indian Society of Pedodontics and Preventive Dentistry0970-43881998-39052012-01-0130321822610.4103/0970-4388.105014Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric studyA K SharmaV SachdevA SinglaB C KirtaniyaMost of Class II malocclusions are due to underdeveloped mandible with increased overjet and overbite. Lack of incisal contact results in the extrusion of the upper and lower anterior dentoalveolar complex, which helps to lock the mandible and prevent its normal growth and development, and this abnormality, is exaggerated by soft tissue imbalance. The purpose of present study was to cephalometrically evaluate skeletal and dentoalveolar changes following the use of Twin-Block appliance in 10 growing children of age group 9-13 years (mean 11.1 year ± SD 1.37) of Class II division 1 malocclusion with a deficient mandible. Cephalometric pre- and post-functional treatment measurements (angular and linear) were done and statistically analyzed using student′s paired t-test. The results of the present study showed that maxilla (SNA) was restricted sagittally (head gear effect) with marked maxillary dental retraction. Significant mandible sagittal advancement (SNB) with minimum dental protraction was observed with significant increase in the mandibular length. The maxillomandibular skeletal relation (ANB and WITS appraisal) reduced considerably which improved the profile and facial esthetics. Pronounced correction of overjet and overbite was seen. The present study concluded that Class II correction occurs by both skeletal and dentoalveolar changes.http://www.jisppd.com/article.asp?issn=0970-4388;year=2012;volume=30;issue=3;spage=218;epage=226;aulast=SharmaCephalometric changesclass II division I malocclusionretrognathic mandibleTwin block appliance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A K Sharma V Sachdev A Singla B C Kirtaniya |
spellingShingle |
A K Sharma V Sachdev A Singla B C Kirtaniya Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study Journal of Indian Society of Pedodontics and Preventive Dentistry Cephalometric changes class II division I malocclusion retrognathic mandible Twin block appliance |
author_facet |
A K Sharma V Sachdev A Singla B C Kirtaniya |
author_sort |
A K Sharma |
title |
Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study |
title_short |
Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study |
title_full |
Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study |
title_fullStr |
Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study |
title_full_unstemmed |
Skeletal and Dentoalveolar changes concurrent to use of Twin Block appliance in Class II division I cases with a deficient mandible: A cephalometric study |
title_sort |
skeletal and dentoalveolar changes concurrent to use of twin block appliance in class ii division i cases with a deficient mandible: a cephalometric study |
publisher |
Wolters Kluwer Medknow Publications |
series |
Journal of Indian Society of Pedodontics and Preventive Dentistry |
issn |
0970-4388 1998-3905 |
publishDate |
2012-01-01 |
description |
Most of Class II malocclusions are due to underdeveloped mandible with increased overjet and overbite. Lack of incisal contact results in the extrusion of the upper and lower anterior dentoalveolar complex, which helps to lock the mandible and prevent its normal growth and development, and this abnormality, is exaggerated by soft tissue imbalance. The purpose of present study was to cephalometrically evaluate skeletal and dentoalveolar changes following the use of Twin-Block appliance in 10 growing children of age group 9-13 years (mean 11.1 year ± SD 1.37) of Class II division 1 malocclusion with a deficient mandible. Cephalometric pre- and post-functional treatment measurements (angular and linear) were done and statistically analyzed using student′s paired t-test. The results of the present study showed that maxilla (SNA) was restricted sagittally (head gear effect) with marked maxillary dental retraction. Significant mandible sagittal advancement (SNB) with minimum dental protraction was observed with significant increase in the mandibular length. The maxillomandibular skeletal relation (ANB and WITS appraisal) reduced considerably which improved the profile and facial esthetics. Pronounced correction of overjet and overbite was seen. The present study concluded that Class II correction occurs by both skeletal and dentoalveolar changes. |
topic |
Cephalometric changes class II division I malocclusion retrognathic mandible Twin block appliance |
url |
http://www.jisppd.com/article.asp?issn=0970-4388;year=2012;volume=30;issue=3;spage=218;epage=226;aulast=Sharma |
work_keys_str_mv |
AT aksharma skeletalanddentoalveolarchangesconcurrenttouseoftwinblockapplianceinclassiidivisionicaseswithadeficientmandibleacephalometricstudy AT vsachdev skeletalanddentoalveolarchangesconcurrenttouseoftwinblockapplianceinclassiidivisionicaseswithadeficientmandibleacephalometricstudy AT asingla skeletalanddentoalveolarchangesconcurrenttouseoftwinblockapplianceinclassiidivisionicaseswithadeficientmandibleacephalometricstudy AT bckirtaniya skeletalanddentoalveolarchangesconcurrenttouseoftwinblockapplianceinclassiidivisionicaseswithadeficientmandibleacephalometricstudy |
_version_ |
1725787737551798272 |