Treatment of severe cases of adult obstructive sleep apnea Syndrome is a life-long process. Consisting of every-night wear of a continuous pressure ventilation mask or the use of an oral appliance, side effects can appear a constraint and lead to progressive abandon of treatment.

Maxillo-mandibular advancement surgery allows a global and stable treatment of pharyngeal collapsus. Patient selection for this surgical procedure is difficult; a multidisciplinary team approach is mandatory, gathering a sleep physician, an orthodontist and surgeon. Occlusal analysis is associated with a cephalometric study, to look for skeletal abnormalities that could favour obstruction of the pharynx; the chosen protocol then aims at simultaneous treatment of apneic events and orthognathic abnormalities.

Indications for orthodontic treatments are in constant augmentation in the adult population. Patients want the shortest possible treatments. Alveolar corticotomies speed up the tooth movement in comparison to conventional orthodontic treatments, therefore decrease treatment duration.

This technique consists in the surgical section of cortical bone that leaves the medullar bone uninjured. The biological effects of corticotomies rely on decreasing medullary bone density and increasing bone remodelling activity (RAP regional acceleratory phenomenon).

We are currently testing this combined approach of alveolar corticotomies and orthodontic treatments on a pig model with special attention given to potential secondary effects on pulp vitality, dental root morphology and length.

We also present here two adult patients with malocclusion cases who underwent alveolar corticotomies as part of their surgical-orthodontic treatments.

These experimental and clinical preliminary studies confirm that corticotomy requires a shorter time of orthodontic movement. Our clinical results showed that this technique resolves malocclusion at least twice as fast as conventional orthodontic treatment.

No secondary effects of corticotomies on pulp vitality dental root morphology were observed.

This article shows how to apply orthodontie force to impacted cuspids and bring them into proper arch position using a unique innovative anchorage system consisting of two short mini-screws placed buccally in cortical bone. Attached to this fixed anchorage is an .018 TMA round wire that emerges from the gingiva to exert direct 3D control on the canine without any additional dental support. The general procedure for moving impacted teeth into position and the mechanics utilized are described in detail with illustrations from clinical cases we have treated.

The objective of this work is to study the static and dynamic occlusion of dentitions in a Class III molar relationship to determine what might be the indications for treatment that would leave buccal segments in this position, and to evaluate the occlusal adaptions that would be needed to make it functionally acceptable.

A cross bite of one or more anterior teeth can interfere with the function of the incisocanine block in guiding mandibular escursive and protrusive movements out of a position of occlusion.

When this type of malocclusion occurs without any associated skeletal imbalance,orthodontists can correct it with relative ease by using a variety of well-documented appliances. The objective of this article is to describe a myofunctional approach for dealing with this problem.

In it, the orthodontist first removes the cross bite’s blockage of tooth movement by placing glass-ionomer cement blocks on the occlusal surfaces of posterior teeth. When this is done the tongue, labial, and cheek musculature can accomplish their role, without inhibition, of correcting positions of the dentoalveolar arches in two or three months.

1 –The word "orthodontics". In 1841, Lefoulon suggested the term "orthodontosie," which the Americans simplified to "orthodontia" and, later, to "orthodontics". But the French resisted. A long struggle began between"orthopedics" and "orthodontics, " which wound up in 2007 with "orthognathodontics". Have we reached a truce?

2 – The word "malocclusion". E. Angle decided that the word "irregularity" employed in the 19th century was inappropriate. He proposed the term "malocclusion", which the French for a long time denigrated only to begin to employ it recently. But beneath new vocables new concepts are hidden.