A comparison of craniofacial Class I and Class II growth patterns.
Longitudinal craniofacial databases, including the Fels Longitudinal Study, the Michigan Growth Study, and the Nijmegen (The Netherlands) Growth Study, were compared for a set of 12 craniofacial measurements on lateral skull cephalograms. The age ranges of the subjects were 7-14 years for females an...
| Publicado en: | American Journal of Orthodontics & Dentofacial Orthopedics Vol. 125; no. 4; pp. 463 - 472 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
2004 Apr
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=138568763&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 138568763 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08895406 1WT jtl: American Journal of Orthodontics & Dentofacial Orthopedics issn: 08895406 maglogo: N pubinfo: dt: 2004 Apr vid: 125 iid: 4 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 138568763 138568763 NLM15067263 138568763 10.1016/j.ajodo.2003.05.012 NLM15067263 138568763 ppf: 463 ppct: 9 formats: tig: atl: A comparison of craniofacial Class I and Class II growth patterns. aug: au: Riesmeijer, Arnold M Prahl-Andersen, Birte Mascarenhas, Anna K Joo, Bert H Vig, Katherine W L affil: Department of Orthodontics, College of Dentistry, The Ohio State University, Columbus, Ohio, USA sug: subj: Maxillofacial Development Malocclusion Physiopathology Skull Facial Bones Cephalometry Reference Values Resource Databases Reproduction Malocclusion Radiography Prospective Studies Adolescence Netherlands Ohio Human White Persons Cross Sectional Studies Michigan Child Female Male Image Processing, Computer Assisted Validation Studies Comparative Studies Evaluation Research Multicenter Studies Scales Adolescent: 13-18 years Child: 6-12 years Female Male ab: Longitudinal craniofacial databases, including the Fels Longitudinal Study, the Michigan Growth Study, and the Nijmegen (The Netherlands) Growth Study, were compared for a set of 12 craniofacial measurements on lateral skull cephalograms. The age ranges of the subjects were 7-14 years for females and 9-14 years for males. When we compared the normally distributed databases using multiple comparisons, a small sample test statistic t for differences between means of the databases showed few statistical differences. The databases were therefore pooled, and sex-specific Class I (ANB < 4 degrees), and Class II (ANB > or = 4 degrees) subsamples were analyzed with the same t test. The sizes of these subsamples ranged from 39 to 122 at the different ages. The findings showed that the Class II samples had greater SNA and SN-GoMe angles. Compared with the Class I group, shorter mandibles were found in the younger age groups of the Class II samples. No differences were found in mandibular length (Ar-Gn) and mandibular body length (Go-Gn) in the older Class II groups compared with the Class I groups. These findings indicate that the greater mandibular lengthening in the Class II groups might have contributed to successful Class II treatment in studies in which a Class I group was the control. Because of individual biological variability, the average Class I or Class II growth pattern might not be a realistic assumption or have clinical relevance for individual patients. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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