What is a class processing?

Clase 3 ortodoncia

La posición mesial de la arcada dental mandibular en relación con el maxilar es característica de la maloclusión de Clase III. Esto provoca una alteración en la relación incisal con una mordida cruzada anterior. Generalmente, estos pacientes presentan también una maloclusión dentoesquelética, que da lugar a una deficiencia maxilar, prognatismo mandibular o su combinación. Tiene una etiología poligenética, en la que interactúan la genética y el ambiente. Aunque su prevalencia es inferior al 5% en la población blanca, esta maloclusión sus efectos deletéreos sobre la estética facial inducen a la mayoría de las personas a buscar un tratamiento temprano.

Las maloclusiones de Clase III están consideradas entre los problemas ortodóncicos más difíciles de tratar, lo que pudiera ser debido a interferencias oclusales funcionales o a discrepancias esqueléticas entre ambos maxilares (retrusión maxilar, prognatismo mandibular o una combinación de ambas). Debemos realizar un adecuado diagnóstico diferencial pudiendo ser de gran ayuda el análisis funcional a la hora de realizar el diagnóstico a fin de poder ofrecer una terapia adecuada.

What is a class 3 in orthodontics?

We define Class III (class three) when the lower teeth are advanced with respect to the upper teeth. An anterior crossbite is usually present. If Class III is of skeletal origin and the patient is growing, treatment should be started as soon as possible.

What is Class 3 malocclusion?

Class III malocclusion is an anteroposterior skeletal problem in which altered relationships of the bony, dental and muscular components can be observed; the most frequently altered skeletal component is the sagittal and transversal maxillary deficiency.

How to fix a class 3 bite?

Early treatment of Class III dental bite can be done with acrylic inclined planes, active plates and functional appliances, such as the Progenie arch. This malocclusion may be due to a skeletal cause, a hypoplasia of the maxilla, i.e. the maxilla has not developed sufficiently.

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Clase 3 dental

El objetivo de esta revisión bibliográfica es presentar alternativas para el tratamiento de la maloclusión de Clase III. Para lo cual se realizó una búsqueda de artículos científicos y reportes de casos clínicos de esta maloclusión en diversas revistas de ortodoncia y ortopedia. Determinando que se debe realizar un adecuado diagnóstico esquelético y dental para diferenciar entre maloclusiones de clase III de origen esquelético o de origen dental, y así enfocar el plan de tratamiento de acuerdo a la edad del paciente y al origen de la misma. Cuando son de origen dental existen alternativas como los planos inclinados de oclusión de Eschler o arcos que permiten atrapar el problema antes de que se desarrolle una maloclusión esquelética, (1) (2) (5) (6) (7) (13). Como origen del tratamiento esquelético se apunta a la solución del problema, a través de dispositivos extraorales que producen un crecimiento diferencial del maxilar o la mandíbula que son los responsables de estas displasias, (2) (8) (9) (10) (12) (13) (14) (19) (20). En los pacientes que han completado el crecimiento tiene dos alternativas de tratamiento, una es la compensación dental (camuflaje) mediante incisivos superiores proinclinados e inferiores retroinclinados ya sea por distalización o extracciones en la arcada inferior, (22) (23) (24) (25) (26); la otra alternativa es la combinación de cirugía ortodóntica cuando la discrepancia maxilar mandibular es grande, (7) (28).

How to correct Class 3 in orthodontics?

The correction of Class III malocclusion is one of the most difficult, especially using only orthodontic means. Treatment is believed to be successful when proclination of the upper incisors, retrusion of the lower incisors, and downward and backward rotation of the mandible can be achieved.

What is a pseudo class III?

Pseudo class III, functional bite or false class III is a malocclusion that due to occlusal interference, such as the extrusion of a tooth or the retroinclination of upper incisors, forces the mandible to move forward for occlusal closure; in patients who are in the growth phase, this malocclusion can be caused by a …

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How is deep bite corrected?

Correction of the dentoalveolar deep bite can be achieved by intrusion of the anterior teeth, extrusion of the posterior teeth or a combination of both. The type of tooth movement chosen depends on the treatment goal of each patient.

Class III Malocclusion: Diagnosis and Treatment

Most people think that only people with crooked teeth need braces. Orthodontics is associated with a purely aesthetic issue, when the reality is that dentists use it more to correct different types of bites. This, although many people do not know it, causes headaches, neck pain or pronunciation problems. One of the most common cases in dental clinics is the class 2 bite. Let us tell you all about it.

Before talking about how to correct class 2 malocclusion we must clarify a number of concepts. It is a malocclusion problem (i.e. not biting properly when closing the mouth) in which the bone of the upper arch is more advanced than the jaw. Visually we observe that the patient bites behind the place where he/she should bite. In these cases we can see that when closing the mouth the lower tusk does not engage before the upper tusk or that one canine is on top of the other. In addition, it is characterized by having the upper anterior teeth tilted outward.

How is dental malocclusion corrected?

Orthodontics will be the main treatment in most cases, especially in mild malocclusions. When the bone defects are important and have not been corrected as children, the only solution is orthognathic or maxillofacial surgery.

What are the characteristics of a patient with class III malocclusion?

Class III malocclusions are characterized by a mesial position of the mandibular dental arch with respect to the maxilla, which produces an alteration in the incisal relationship, and may be in anterior crossbite; generally, these patients in addition to presenting a dento-skeletal malocclusion; the result of …

What causes malocclusion?

Malocclusion arises when there is irregular contact between the teeth of the upper jaw and the lower jaw. This malformation causes problems with the bite and crowding, which occurs when the teeth do not fit in the dental arch due to lack of space.

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Class 3 malocclusion in children

Class III is described as a combination of dentoalveolar and skeletal changes in the 3 planes of space: transverse, vertical and sagittal.3 Class III malocclusion is characterized by a deficiency (or delayed position) of the maxilla, or by prognathism of the mandible, although in most cases both situations occur together.4 Its etiology is multifactorial, although it has a strong genetic basis. It may be due to congenital or acquired causes.3

Several authors have reported that a dental or functional anterior crossbite can lead to the development of a skeletal Class III malocclusion if it is not corrected in time.6

On physical examination of the face, facial asymmetry was observed, the lower third was enlarged, the implantation of the right ear was slightly lower than the left, and the chin was slightly deviated to the left (Figure 1).

The profile analysis showed a straight profile with horizontal growth pattern, a closed nasofacial angle, open nasomentum and adequate mento-cervical distance. Smile analysis showed 80% clinical crown, non-consonant smile type, normal phonation and nasal breathing. In the midline, the upper midline is centered with the facial midline and the lower midline has a deviation of 1mm to the right.