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Profile changes associated with different orthopedic treatment approaches in Class III malocclusions.
Angle Orthod. 2004 Dec; 74(6):733-40.AO

Abstract

The aim of this study was to evaluate and compare the soft tissue effects of chincup (CC), chincup plus bite plate (CC+P), and reverse headgear (RHg) therapies with each other and with an untreated control group (C). The material consisted of lateral cephalometric and hand-wrist films of 59 Class III cases and 20 nontreated control subjects. Thirty-one cases were treated with CC, 14 with CC+P, and 14 with RHg, and Class I relation was achieved. The mean pretreatment ages were approximately 11 years and the observation period was one year. The cephalometric films were analyzed according to the structural superimposition method of Björk. All tracings were double digitized, and the measurements were calculated by a computer program (PORDIOS). Treatment and control changes within the groups and the differences between the groups were analyzed statistically. Forward positioning of the maxilla was significant in the RHg group, whereas the mandible was positioned backward significantly in all the treatment groups. Posterior rotation of the mandible was significant in the CC+P and RHg groups. The overjet increased and the overbite decreased significantly in all the treatment groups. Forward movement of soft tissue A and upper lip was significant in all groups, whereas more pronounced in the CC+P group. The soft tissue changes in the mandibular region were significant in the CC and CC+P groups, whereas in the maxillary region more significant and similar improvements were obtained by CC+P and RHg treatments. Longterm studies are required to confirm the stability of these changes.

Authors+Show Affiliations

Department of Orthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey. ayca@baskent.edu.trNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15673133

Citation

Arman, Ayça, et al. "Profile Changes Associated With Different Orthopedic Treatment Approaches in Class III Malocclusions." The Angle Orthodontist, vol. 74, no. 6, 2004, pp. 733-40.
Arman A, Toygar TU, Abuhijleh E. Profile changes associated with different orthopedic treatment approaches in Class III malocclusions. Angle Orthod. 2004;74(6):733-40.
Arman, A., Toygar, T. U., & Abuhijleh, E. (2004). Profile changes associated with different orthopedic treatment approaches in Class III malocclusions. The Angle Orthodontist, 74(6), 733-40.
Arman A, Toygar TU, Abuhijleh E. Profile Changes Associated With Different Orthopedic Treatment Approaches in Class III Malocclusions. Angle Orthod. 2004;74(6):733-40. PubMed PMID: 15673133.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Profile changes associated with different orthopedic treatment approaches in Class III malocclusions. AU - Arman,Ayça, AU - Toygar,T Ufuk, AU - Abuhijleh,Eyas, PY - 2005/1/28/pubmed PY - 2005/2/26/medline PY - 2005/1/28/entrez SP - 733 EP - 40 JF - The Angle orthodontist JO - Angle Orthod VL - 74 IS - 6 N2 - The aim of this study was to evaluate and compare the soft tissue effects of chincup (CC), chincup plus bite plate (CC+P), and reverse headgear (RHg) therapies with each other and with an untreated control group (C). The material consisted of lateral cephalometric and hand-wrist films of 59 Class III cases and 20 nontreated control subjects. Thirty-one cases were treated with CC, 14 with CC+P, and 14 with RHg, and Class I relation was achieved. The mean pretreatment ages were approximately 11 years and the observation period was one year. The cephalometric films were analyzed according to the structural superimposition method of Björk. All tracings were double digitized, and the measurements were calculated by a computer program (PORDIOS). Treatment and control changes within the groups and the differences between the groups were analyzed statistically. Forward positioning of the maxilla was significant in the RHg group, whereas the mandible was positioned backward significantly in all the treatment groups. Posterior rotation of the mandible was significant in the CC+P and RHg groups. The overjet increased and the overbite decreased significantly in all the treatment groups. Forward movement of soft tissue A and upper lip was significant in all groups, whereas more pronounced in the CC+P group. The soft tissue changes in the mandibular region were significant in the CC and CC+P groups, whereas in the maxillary region more significant and similar improvements were obtained by CC+P and RHg treatments. Longterm studies are required to confirm the stability of these changes. SN - 0003-3219 UR - https://www.unboundmedicine.com/medline/citation/15673133/Profile_changes_associated_with_different_orthopedic_treatment_approaches_in_Class_III_malocclusions_ L2 - https://meridian.allenpress.com/angle-orthodontist/article-lookup/doi/10.1043/0003-3219(2004)074<0733:PCAWDO>2.0.CO;2 DB - PRIME DP - Unbound Medicine ER -