International Journal of Orthodontics by Grant Hubbard - Issuu
Dentofacial and soft tissue changes in Class II, Division 1 cases treated with and focused on the relationship between the positions of the incisors and the lips;. mandibular left canine and premolars, and the . 9 Case 2. Full Class I relationship achieved in four months of pretreatment with .. including correction of moderate crowding, correction of moderate Class II division 1, and deep overbite. .. les symptômes et les signes peuvent varier, y compris chez un même individu. Orthodontic Management of Maxillary Canine First Premolar Transposition: A Conservative. Approach. . cela même pour ceux d'entre nous qui ont choisi la voie de treating patients with Class II, Division 1 occlusal relationship.
In Class III dolicofacial subjects, however, we found even smaller values for alveolar bone thickness than those previously reported . Our fourth objective was to determine the thickness of the anterior and posterior mandibular and maxillary walls at different points below the CEJ. These data reveal a significantly greater distance between the CEJ and the bony crest at the right upper central and lateral incisors, the left lower central incisor and the right lower lateral incisor in Class III mesofacial subjects with respect to their Class I counterparts.
This indicates that the periodontal bony support is much reduced in the former—a tendency that was not mimicked in the dolicofacial group, in which no statistically significant differences between the two skeletal Classes were found in either jaw.
In brachyfacial subjects, a greater distance between the CEJ and the vestibular alveolar crest was measured at all four upper incisors.
incisor relationship - oi
At the lower incisors, the significant differences were not homogeneously distributed, but in all cases pointed to a greater distance between the CEJ and the bony crest in Class III than in Class I, in line with previous reports [4,23]. Limitations of our study include the wide age range of our sample, and the shortcomings in even modern CBCT scanners to distinguish between cortical and medullary bone.
We also found fewer significant differences than expected in the dolicofacial group, which was relatively small, and a larger sample would be required to provide more meaningful data.
That being said, the differences we did uncover indicate that both brachyfacial and mesofacial Class III patients require thorough periodontal support assessment before camouflage treatment is undertaken, as excessive vestibular movement can lead to bone loss in the anterior sectors [23,24].
In particular, we show that there are many significant differences between Class I and Class III in terms of tooth inclination, alveolar thickness and potential dental movement.
We also confirm that tooth movement must be accurately monitored in Class III patients, irrespective of the symphyseal leeway space available, due to the reduced periodontal support at both upper and lower incisors. In addition, we can say that 3D imaging CBCT is undoubtedly a better tool than teleradiography for this purpose, in that it provides a more detailed view and enables more precise measurement of the relevant parameters.
Facial planning for orthodontists and oral surgeons. Am J Orthod Dentofacial Orthop ; 3: The role of function in the etiology and treatment of malocclusion.
Am J Orthod ; Angle Orthod ;66 2: Spatial relationships between the mandibular central incisor and associated alveolar bone in adults with mandibular prognathism. Angle Orthod ;77 5: The relation of maxillary structures to cranium in malocclusion and in normal occlusion.
Cephalometrics for orthognathic surgery. J Oral Surg ;36 4: Cephalometrics for you and me. Dimension of the facial bone wall in the anterior maxilla: Clin Oral Implants Res ;22 Recently I heard a prominent chair of an orthodontic department making this opinion comment: When they come out of school, they want to be able to pay back their debts and benefit from a high standard of living as soon as possible. We may get charmed by the manufacturers of different appliances like brackets and wires or stimulation assisting appliances and techniques that are supposed to boost treatment efficiency like Acceledent, Propel, Piezocision and others.
I have nothing against improving my treatment outcomes, I am personally charmed and intrigued by all those new things but every time I have the temptation of using any new product or technique I go through a very strict review of the independent literature to decide myself that the change is worthwhile.
IAJD -vol. 6 - 3
I will not take position on any of them but I urge you to look at the literature and make your own decision in the seriousness of the literature and on the clinical effectiveness of any new product.
After all this, I conclude that we take less time to treat for all of the above reasons. However, faster does not always equal better. Our biggest challenge today is to encourage patients to collaborate to the treatment that he or she NEEDS and not to the treatment that he or she WANTS knowing that we cannot all always have it our way.
De grandes questions demeurent: Pourquoi les patients demandent-ils des traitements plus courts. Spanish Version Ya esta casi hecho? Las personas no tienen el tiempo suficiente en sus vidas para hacer todo lo que quisieran hacer. Ni siquiera hemos hablado de los adolescentes que quieren que sus tratamientos finalicen al tercer mes. Mi experiencia personal al tenerlos es que el tiempo es sumamente importante. Muchos se incluyen en esta modalidad para entrar en competencia. En algunos casos el hacer menos extracciones hace que tengamos menos espacio que cerrar lo que reduce el tiempo de tratamiento.
Recientemente escuche un reconocido director de un departamento de Ortodoncia haciendo el siguiente comentario: Pero tenemos que preguntarnos si la productividad debe ser nuestro primer objetivo. Devemos nos perguntar se a produtividade deve ser o nosso principal objectivo. German Version Sind wir bald fertig?
In keiner anderen Epoche war Zeit so wichtig. Wir sehen alle, dass sich die Zukunft der Orthodontie schnelleren und besseren Behandlungsmethoden hinwendet. Eine dieser Fragen lautet: