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ISSN (Print) 1013-9052
EISSN 1658-3558
The Saudi Dental Journal,
P.O. Box 52500,
Riyadh 11563,
Kingdom of Saudi Arabia
P.O. Box 52500,
Riyadh 11563,
Kingdom of Saudi Arabia
| Tel. |
966-1-467-7328 |
| Fax. |
933-1-467-7308 / 966-1-467-7534 |
| Email |
saudidj@ksu.edu.sa |
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Dento-skeletal changes between headgear-fixed and activator-fixed therapies
Rabindranath Sivam, BDS, MSc (Lond), D Orth RCS (Edin.), MDO RCPS
(Glasg), M Orth RCS (Edin.), FDS, RCSI (Eng.), FWFO
A retrospective cephalometrlc study was undertaken to compare the dento-skeletal changes in 60 Caucasian female patients aged 12 to 13 years exhibiting Class II Division 1 malocclusion and managed on a non-extraction basis by two different treatment modalities. Thirty were treated with extra-oral traction by headgear followed by pre-adjusted Edgewise fixed appliance therapy while the remainder wore activator functional appliances initially followed by similar Edgewise therapy. Skeletally, there was significant forward mandibular growth in both groups with larger increase in the functional-fixed group. The increase in lower anterior facial height which was greater In the functional-fixed group dld not result in posterior rotation of the mandible in either group. The headgear-fixed group exhibited considerable restraint of forward growth of the maxilla with an anterior downward tipping of the palatal plane which was attributed to the wear of headgear.Overjet was reduced in the functional-fixed group by an increase in mandibular corpus length and Incisal tipping, while in the head gear-fixed group, in addition, it was also due to maxillary restraint.
Saudi Dental Journal 2001;13(1):30-36.
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