American Journal of Orthodontics and Dentofacial Orthopedics
Original articleTransverse skeletal and dentoalveolar changes during growth
Section snippets
Material and methods
The material for this research project was obtained from the Iowa Facial Growth Study. Beginning in 1946, this sample consisted of 89 boys and 86 girls of primarily northern European descent and above-average socioeconomic status living near Iowa City, Iowa. Orthodontic records were taken semiannually from ages 3 to 12 years, annually during adolescence, and once during early adulthood. All subjects were free of facial or skeletal disharmony and had normal (Angle Class I) molar and canine
Results
Mean transverse skeletal and dentoalveolar changes during growth are given in Table I. Figure 2 illustrates change with time for each transverse maxillary measurement referenced to the first time point (mean age, 7.6 years). Figure 3 illustrates change with time for each transverse mandibular measurement referenced to the first time point (mean age, 7.6 years). Table II illustrates the relationship between width changes at the 13 measurement points. The results in Table II include adjustments
Discussion
A composite illustration of the mean transverse basal skeletal, dentoalveolar, and molar changes from ages 7.6 to 26.4 years is provided in Figure 4, which summarizes our principal findings: Transverse maxillary basal bone width increases, maxillary alveolar process width increases, and mandibular alveolar process bone width increases are consistent with transverse molar movements during growth. In contrast, transverse mandibular basal bone width increases, measured as either gonion-gonion or
Conclusions
- •
Transverse molar movements during growth mirror transverse maxillary basal bone width increases, maxillary cross-arch alveolar process width increases, and mandibular cross-arch alveolar process width increases.
- •
There is a pattern of width changes in the maxilla, the maxillary alveolar process, the maxillary first molars, the mandibular first molars, and the mandibular alveolar process that occurs as a gradient in the vertical dimension (jugale-mandibular alveolar process). The greatest width
References (51)
Palatal growth studied on human autopsy material: a histologic microradiographic study
Am J Orthod
(1975)- et al.
Palatal suture closing in man from 15-35 years of age
Am J Orthod
(1977) Changes in width dimensions between certain teeth and facial points during human growth
Am J Orthod
(1950)- et al.
A longitudinal cephalometric study of transverse and vertical craniofacial growth
Am J Orthod Dentofacial Orthop
(1993) - et al.
Transverse development of the jaws: norms for the posteroanterior cephalometric analysis
Am J Orthod Dentofacial Orthop
(1997) - et al.
Maxillary and mandibular width changes studied using metallic implants
Am J Orthod Dentofacial Orthop
(2000) Evidence for continued apposition of adult mandibular bone from skeletalized materials
J Prosthet Dent
(1979)- et al.
Transverse molar movements during growth
Am J Orthod Dentofacial Orthop
(2003) A longitudinal study of arch size and form in untreated adults
Am J Orthod Dentofacial Orthop
(1997)Dimensional changes of the dental arches: a longitudinal study from birth to 25 years
Am J Orthod
(1964)
Dental arch depth and width studied longitudinally from 12 years of age to adulthood
Am J Orthod
Arch width changes from 6 weeks to 45 years of age
Am J Orthod Dentofacial Orthop
Longitudinal dental arch changes in adults
Am J Orthod Dentofacial Orthop
Maturation of untreated normal occlusions
Am J Orthod
The effects of Fränkel II treatment on arch width and arch perimeter
Am J Orthod Dentofacial Orthop
Dentoalveolar changes related to mandibular forward growth in untreated Class II persons
Am J Orthod Dentofacial Orthop
Transverse dimension and long-term stability
Semin Orthod
Spontaneous mandibular arch response after rapid palatal expansion: a long-term study on Class I malocclusion
Am J Orthod Dentofacial Orthop
Facial growth in man studied with the aid of metallic implants
Acta Odontol Scand
Variations in the growth pattern of the human mandible: longitudinal radiographic study by the implant method
J Dent Res
The use of metallic implants in the study of facial growth in children: method and application
Am J Phys Anthropol
Normal and abnormal growth of the mandible: a synthesis of longitudinal cephalometric implant studies over a period of 25 years
Eur J Orthod
Handbook of facial growth
Growth and remodeling of the human maxilla
Am J Orthod
Midpalatal suture expansion studied by the implant method over a 7-year period
Trans Eur Orthod Soc
Cited by (67)
Maxillary transverse deficiency diagnosed by 3 methods and its relationship with molar angulation in patients with skeletal Class III malocclusion
2023, American Journal of Orthodontics and Dentofacial OrthopedicsDevelopment of a maxillomandibular arch form based on the center of resistance of teeth using cone-beam computed tomography
2022, American Journal of Orthodontics and Dentofacial OrthopedicsRelationship between dental and basal arch forms in mandibular anterior crowding
2022, American Journal of Orthodontics and Dentofacial OrthopedicsCitation Excerpt :There are several limitations to this study. First, only women aged ≥16 years, of whom no significant growth changes in the dental and basal arch were detectable, were selected for control and MnAC groups because the size of the mandibular dental and basal arch is influenced by sex47,60 and growth.61,62 In the future, it will be necessary to consider whether the same results can be obtained for men and growing patients.
Dental changes in humans with untreated normal occlusion throughout lifetime: A systematic scoping review
2021, American Journal of Orthodontics and Dentofacial OrthopedicsCitation Excerpt :Five studies mentioned the presence of preregistered protocol to control any risk of selection of reported results.61,62,75,77,78 Twenty-two studies had an overall moderate risk of bias.8,9,11,46-48,50,52-55,57,61,62,65,66,71,72,74,75,79,80 Seven studies were judged as having serious risk of bias, suggesting the study to have some important problems.10,56,63,64,67,77,78
Supported by the Dr George Andreasen Memorial Fund.