scholarly journals Craniofacial growth studies in orthodontic research - lessons, considerations and controversies

2021 ◽  
Vol 34 (1) ◽  
pp. 61-69
Author(s):  
Morgan Wishney ◽  
M. Ali Darendeliler ◽  
Oyku Dalci
Keyword(s):  
Craniofacial Growth ◽  
Growth Studies

scholarly journals Craniofacial Growth Studies and Craniofacial Growth

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Richard J Sherwood ◽  
Kieran P McNulty ◽  
Manish Valiathan ◽  
Dana L Duren ◽  
Ryan P Knigge ◽  
...  
Keyword(s):  
Craniofacial Growth ◽  
Growth Studies

scholarly journals Evidence of secular trends in a collection of historical craniofacial growth studies

2014 ◽  
Vol 37 (1) ◽  
pp. 60-66 ◽  
Author(s):  
Joseph S. Antoun ◽  
Claire Cameron ◽  
William Sew Hoy ◽  
Peter Herbison ◽  
Mauro Farella
Keyword(s):  
Secular Trends ◽  
Craniofacial Growth ◽  
Growth Studies

Some comparative aspects of a longitudinal growth study in normal spanish children and other longitudinal studies

1986 ◽  
Vol 113 (4_Suppl) ◽  
pp. S93-S97 ◽  
Author(s):  
A. FERRANDEZ ◽  
E. MAYAYO ◽  
M. RODRIGUEZ ◽  
J.M. ARNAL ◽  
J. CARO ◽  
...  
Keyword(s):  
Longitudinal Studies ◽  
Environmental Conditions ◽  
Regional Differences ◽  
Longitudinal Growth ◽  
Growth Study ◽  
Growth Studies ◽  
Different Populations ◽  
Catch Up

Abstract The differences existing among some european longitudinal growth studies make it necessary to be cautious in the use of standards constructed on different populations. The improvement of the environmental conditions during the last 20 years is probably the most important cause of the "catch-up" phenomenon of the spanish stature. It is probable that racial characteristics also play a role, even in the same country as can be appreciated on comparing two spanish longitudinal studies based on children originary from different regions. All of wich indicates the need to use own standards in those countries wich, like ours, have lived through a period of intenses changes. Even exploratory studies of regional differences in the same country seem necesary.

Effects of Fetus Weight, Dam Strain, Dam Weight, and Litter Size on the Craniofacial Morphogenesis of CL/Fr Mouse Fetuses Affected with Cleft Lip and Palate

1997 ◽  
Vol 34 (4) ◽  
pp. 325-330 ◽  
Author(s):  
Kazuaki Nonaka ◽  
Yasunori Sasaki ◽  
Yoshihisa Watanabe ◽  
Ken-ichi Yanagita ◽  
Minoru Nakata
Keyword(s):  
Litter Size ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Craniofacial Morphology ◽  
Strain Effect ◽  
Craniofacial Growth ◽  
Lateral Cephalogram ◽  
Mouse Fetus ◽  
Mouse Fetuses ◽  
Craniofacial Morphogenesis

Objective: This study examined the factors related to the morphogenesis of the craniofacial complex of the CL/Fr mouse fetus affected with CLP based on the findings of a lateral cephalogram. Design: Embryo transfer experiments were performed to determine the effect of the fetus weight, dam strain, dam weight, and litter size on the intra-uterine craniofacial morphogenesis of CL/Fr mouse fetuses. On the 18th gestational day, each pregnant dam that had received CL/Fr mouse embryos was laparotomized to remove the transferred fetuses that had developed in the uteri of the cleft lip and palate (CLP)-susceptible CL/Fr strain dam and the CLP-resistant C57BL strain dam. A cephalometric observation of the craniofacial morphology of each fetus was subsequently performed. Results: Based on a multiple regression analysis, the standardized partial regression coefficients of the affected fetus weight, the dam weight, and the litter size on the maxillary size of the affected CL/Fr fetus were 0.71 (p < .01), 0.03, and −0.07. According to a least-squares analysis of variance, the dam strain effect in addition to the effect of the affected fetus weight on the maxillary size and the cranial size of the affected fetuses was significant (p < .01 for cranial size, p < .05 for maxillary size) and close to a significant level (p = .09) for the mandibular size of the affected fetuses. The adjusted maxillary size and cranial size after statistically eliminating the effects of the affected fetus weight, dam weight, and lifter size on each original craniofacial size of the affected fetuses that had developed in the CL/Er dam strain were also significantly smaller than those of the affected fetuses that had developed in the C57BL dam strain. Conclusions: The present results indicate that the craniofacial growth of the CL/Fr mouse fetus affected with CLP increased in proportion to the fetus weight. The dam strain effect, in addition to the effect of the affected fetus weight, could thus not be ignored when the etiology of the spontaneous CLP was examined, while the uterine environment, provided by the CL/Fr strain dam, retarded the intra-uterine craniofacial growth of the affected fetuses. It was therefore concluded that the dam strain effect, as well as the effect of the affected fetus weight, both play an important role on the craniofacial morphogenesis of the CL/Fr strain of the affected fetuses that developed in both strain dams.

scholarly journals Estimating Craniofacial Growth Cessation: Comparison of Asymptote- and Rate-Based Methods

2021 ◽  
pp. 105566562110026
Author(s):  
Anna M. Hardin ◽  
Ryan P. Knigge ◽  
Hee Soo Oh ◽  
Manish Valiathan ◽  
Dana L. Duren ◽  
...  
Keyword(s):  
Estimation Method ◽  
Logistic Models ◽  
Careful Consideration ◽  
Craniofacial Growth ◽  
Craniofacial Anomalies ◽  
Linear Measurements ◽  
Growth Cessation ◽  
Lateral Cephalograms ◽  
Males And Females ◽  
Important Milestone

Objective: To identify differences between asymptote- and rate-based methods for estimating age and size at growth cessation in linear craniofacial measurements. Design: This is a retrospective, longitudinal study. Five linear measurements were collected from lateral cephalograms as part of the Craniofacial Growth Consortium Study (CGCS). Four estimates of growth cessation, including 2 asymptote- (GCasym, GCerr) and 2 rate-based (GCabs, GC10%) methods, from double logistic models of craniofacial growth were compared. Participants: Cephalometric data from participants in 6 historic longitudinal growth studies were included in the CGCS. At least 1749 individuals (870 females, 879 males), unaffected by craniofacial anomalies, were included in all analyses. Individuals were represented by a median of 11 images between 2.5 and 31.3 years of age. Results: GCasym consistently occurred before GCerr and GCabs consistently occurred before GC10% within the rate-based approaches. The ordering of the asymptote-based methods compared to the rate-based methods was not consistent across measurements or between males and females. Across the 5 measurements, age at growth cessation ranged from 13.56 (females, nasion-basion, GCasym) to 24.39 (males, sella-gonion, GCerr). Conclusions: Adolescent growth cessation is an important milestone for treatment planning. Based on our findings, we recommend careful consideration of specific definitions of growth cessation in both clinical and research settings since the most appropriate estimation method may differ according to patients’ needs. The different methods presented here provide useful estimates of growth cessation that can be applied to raw data and to a variety of statistical models of craniofacial growth.

The role of the nasal region in craniofacial growth: An investigation using path analysis

2021 ◽  
Author(s):  
Federica Landi ◽  
James Barraclough ◽  
Andrej Evteev ◽  
Anatoliy Anikin ◽  
Leonid Satanin ◽  
...  
Keyword(s):  
Path Analysis ◽  
Craniofacial Growth ◽  
Nasal Region
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