Radiographic cephalometric method of assessment of craniofacial growth in monkeys

Orthopedics in orthodontics: Fiction or reality. A review of the literature--Part II

This study covers articles dealing with orthopedic treatment of Class III malocclusions, transversal deficiencies, and orthopedically induced changes in animal studies. An attempt has been made to discuss the whole group of orthopedic changes and their effects in the long-term. We want to emphasize that all orthopedic appliances have an important value in clinical orthodontics. There is, however, little scientific evidence so far to support the idea that they have any permanent orthopedic effect.

A cephalometric study of young marmosets (Callithrix jacchus)

Linear and angular measurements of young marmosets taken at three-month intervals from a series of cephalograms are presented. They show that linear craniofacial development was largely complete by six months of age, subsequent angular changes being mainly related to dental development. No sexual dimorphism was apparent, and there was substantial homogeneity in results for animals of the same age. Thus, marmosets, with their low cost, ease of handling, and rapid maturation, may provide a useful animal model for craniofacial research.

Cephalometric roentgenography for nonhuman primates utilizing a surgically implanted head positioner

Cephalometric roentgenography in nonhuman primates requires more precise head positioning than that afforded by commonly used ear rod techniques. A standard cephalometric headholder was therefore modified and a technique was developed to implant an attachment that permit precise positioning of the head in all three planes of spce. This method has been used in 36 animals, and at 35 months postsurgery the implants have remained stable and tissue compatiblity is generally excellent. Roentgenograms obtained with this technique offer a high degree of accuracy in documenting growth changes and response to orthodontic treatment.