Delaire mask

Delaire face mask.

Back of the Delaire face mask with forehead and chin cap pads.

A Delaire mask (synonym: face mask according to Delaire and Verdon ) is one of the face masks. It is an orthodontic appliance for the early treatment of jaw misalignments . In contrast to headgear , the mask is not attached to the head with straps.

Angle class III.

Headgear device that, unlike the Delaire mask, is attached to the head with elastic bands.

Donned Delaire mask

Angle class III

A so-called class III malocclusion ( Angle class III ) can be caused by a retrognathic upper jaw, a prognathic lower jaw or a combination of both. The specialty of the Delaire face mask compared to other face masks is that it does not require any additional head straps to fix the device to the patient's head. At the same time, it uses the direct force of the elastic bands in the mouth of the child to be treated, where the mask is attached to an intraoral hook or a functional orthodontic device such as the Rapid Palatal Expander (RPE) by means of clamps , which ensures that it is held.

Treatment with the Delaire mask is often preceded by a pretreatment, with which the upper jaw is stretched and the bone sutures in the upper jaw are loosened using a palatal expansion device. The Delaire mask can be variably adjusted in the front and chin area using a screw system. The sagittal features lead to the desired correction in sagittal and vertical directions. The Delaire mask is worn 1–2 hours before sleep and at night for a period of one to one and a half years. It pulls the upper jaw forward during the growth phase to correct the class III malocclusion. It is usually only a partial therapy that is continued with other orthodontic devices.

The treatment is considered to be very effective, especially between the ages of 7 and 13, when bone development and mandibular growth are still ongoing. The wearing time is typically 12 to 18 months depending on the need for correction. The best effect is usually achieved in the early mixed dentition phase (7–9 years), because the mask mainly acts on the jaw during this time. The older the patient, the more it affects the position of the teeth.

indication

The Delaire mask is indicated for micrognathia , for the ventral development of the upper dental arch and for mesial movement of teeth. It is used in patients with cleft lip and palate when the maxillary complex is to be developed not only in the sagittal, but also in the transverse direction.

The ventrally directed forces are in the order of magnitude of 5–15 N in the permanent dentition, around 3.5–4 N in the deciduous dentition and around 1–2 N for the mesial movement of individual teeth in the upper or lower jaw.

advantages

The Delaire face mask does not obstruct the child's view. If you wear glasses, there is no wear and tear on the glasses frame.

disadvantage

The disadvantage is that the frame of the Delaire mask can press on the face while sleeping. Since the forces only act on the teeth of the upper jaw, they can be shifted undesirably. This is prevented by the additional integration of appropriate orthodontic devices. The treatment result depends heavily on the patient's compliance , which is not easy to achieve in childhood.

Contraindication

The Delaire mask has a growth-inhibiting effect on the lower jaw. The jaw joints are stressed accordingly by the counter pressure. The mask must therefore not be used on diseased jaw joints.

history

The reverse pull face mask was introduced in 1971 by the French orthodontist Jean Delaire (* 1923).

variants

A variant of the Delaire mask is the Tübingen model , in which the mask is secured against slipping by a rubber band on the back of the head.
The face mask according to Grummons has no support in the chin region and instead has abutments in the area of the zygomatic arches on both sides. Unlike the Delaire mask, this construction does not transfer any forces to the temporomandibular joints and therefore does not inhibit growth on the lower jaw.

Web links

Individual evidence

↑ Ulrike Grohmann: Orthodontic appliances: picture atlas . Springer-Verlag, 5 December 2005, ISBN 978-3-7985-1520-8 , pp. 69 ff.
↑ Peter W. Ngan, Toshio Deguchi, Eugene W. Roberts: Orthodontic Treatment of Class III Malocclusion . Bentham Science Publishers, July 16, 2014, ISBN 978-1-60805-491-6 , pp. 83 ff.
↑ Ulrike Grohmann: Orthodontic appliances: picture atlas . Springer-Verlag, December 5, 2005, ISBN 978-3-7985-1520-8 , p. 69.
↑ Michael Miloro, GE Ghali, Peter Larsen, Peter Waite: Peterson's Principles of Oral and Maxillofacial Surgery . PMPH-USA, 2004, ISBN 978-1-55009-234-9 , pp. 1077 ff.
^ Winfried Harzer, Textbook of Orthodontics , Deutscher Ärzteverlag Cologne, 1999 ISBN 978-3-446-18548-7
↑ Bärbel Kahl-Nieke: Introduction to orthodontics: diagnostics, treatment planning, therapy: with 10 tables . Deutscher Ärzteverlag, 2010, ISBN 978-3-7691-3419-3 , p. 200.

[Grohmann2005-1] Ulrike Grohmann: Orthodontic appliances: picture atlas . Springer-Verlag, 5 December 2005, ISBN 978-3-7985-1520-8 , pp. 69 ff.

[2] Peter W. Ngan, Toshio Deguchi, Eugene W. Roberts: Orthodontic Treatment of Class III Malocclusion . Bentham Science Publishers, July 16, 2014, ISBN 978-1-60805-491-6 , pp. 83 ff.

[3] Ulrike Grohmann: Orthodontic appliances: picture atlas . Springer-Verlag, December 5, 2005, ISBN 978-3-7985-1520-8 , p. 69.

[4] Michael Miloro, GE Ghali, Peter Larsen, Peter Waite: Peterson's Principles of Oral and Maxillofacial Surgery . PMPH-USA, 2004, ISBN 978-1-55009-234-9 , pp. 1077 ff.

[5] Winfried Harzer, Textbook of Orthodontics , Deutscher Ärzteverlag Cologne, 1999 ISBN 978-3-446-18548-7

[6] Bärbel Kahl-Nieke: Introduction to orthodontics: diagnostics, treatment planning, therapy: with 10 tables . Deutscher Ärzteverlag, 2010, ISBN 978-3-7691-3419-3 , p. 200.