Oil glands respond to androgen. They produce more quantities of sebum that clogs the oil glands opening resulting to blackheads.

After pregnancy, this will most likely clear up, so don’t worry mommy’s! There are safe medicines you can use though if it becomes severe while pregnant such as topical antibiotics.

Washing your face daily using over-the-counter product cleanser can also minimize breakouts. Choose a product that contains alpha-hydroxy acid.

Children are a risk group for oral injuries. Especially at certain ages, children more anxious or in the case of dental trauma those children with incisive highlight increased (beatings on upper incisors).

We will describe in more detail the possible types of injury in the teeth. But we must not forget that before an impact in the oral soft tissues are the most sensitive, to be more labile, but its recovery is sometimes more easily, quickly and fully. May cause cuts, grazes, bruises, bruises, burns and even necrosis, if soft tissues are particularly affected.

The bones may also suffer fractures. Fractures at the level of jaw bone fractures are more frequent at the alveolar level and the fracture of condylar neck of the mandible. When the coup is in the teeth, you can split a portion of alveolus because of the impact (the fragment sometimes includes several teeth). The blows to the chin from the bottom up and forward and back, can crash the condilos of the jaw to the skull at the jaw joint. This sometimes results in a fracture of the jaw more fragile portion, which are the necks of the condyles a region close and delicate bone.

Let us also remember that, for analyzing facial vertically, the face is usually divided into third facials. Drawing on the midline of the face, the upper third includes the insertion of hair until entrecejo, the middle third since entrecejo to the point Columela between the nose and upper lip (subnasal point), and the lower third of point subnasal goes to the lowest point of the chin. These thirds have similar measures are proportionate. The third most interest us in relation to the mouth is logically the third facial lower.

- Sobremordida plus: It’s too much overlap between the upper teeth on the bottom. When the teeth are prepared in this way makes more difficult the mobility of the jaw. When the jaw movements restricted, chewing may be more costly. It is also possible that the sobremordida be augmented so that the edge of the lower incisors clash against the gums of the upper incisors at the level of the palate and causes damage.
The increased sobremordida usually having to do with a morphological pattern (bone / skeletal) and facial growth in the size of the lower third of the face is diminished. This is the so-called pattern braquifacial. Anyway, when the lower third facial is very short, so there is a loss of facial harmony, we have a disturbance call syndrome short side.

The development of highly sobremordidas increased and the syndrome of short side has much hereditary component.

- Discrepancy bone-tooth
The lack of space to house all the teeth in the arcades is a discrepancy of bone-tooth negative. This discrepancy may result in a loss of form in archery by crowding of the teeth, this loss of alignment is called crowding. Another possible result of lack of space is the inclination towards the outside of all teeth, called dental protrusion. When you have this protrusion in both dental arches, is called biprotrusion (dental).

When space in the alveoli exceeds the need to fit your teeth fear a discrepancy bone-tooth positive. Can be spaces between teeth, known as diastema. It can also happen that the teeth are inclined backwards, which would close the spaces left over: This would be a retrusion tooth (if it is in both arcades called birretrusion tooth).

- Class II / highlight increased: In relation to the so-called Class II teeth in the upper arch are too advanced with respect to the teeth of the lower arcade. Class II describes the jaw bone is more advanced than normal with respect to the jaw or, put another way, that the mandible is positioned more delayed than normal with respect to the jaw.

In many cases there is a large space between the upper and lower incisors. But there are also cases of type II in which the highlight is not increased because the upper incisors are tilted backwards.

Variants of Class II are many. It can be tooth-alveolar, bone or joint. It can be large jaw is in a position advanced compare to small jaw or rearward position, for protrusion-tooth socket higher by retrusion tooth socket-less, or some combination of the above.

- Class III / crossbite before: The teeth of the lower arcade are too advanced with respect to the teeth in the upper arch. If it is a Class III bone, it will be because the jaw bone is undeveloped or is advanced or is large in relation to the jaw. We also have classes III to cause mixed.
In the case of Class III it is common to find a previous relationship changed between the upper and lower incisors. It is that you lose all the highlight, and teeth are biting edge to edge, or even the lower incisors in front of superiors, creating a negative or highlight what is known as cross bite before.

When both arches are similar in size or something is comparatively lower than the higher peaks above bite to coincide with lower peaks. This is uncomfortable, unstable. That is why the jaw deviates slightly each time you shut your mouth, making it one of the sides of the mouth occluded “correctly” while the other one does in crossbite. That leads to an asymmetric position of the jaw with the rest of the face, as if it could be perpetuated for years because of facial asymmetry, growth increased by a half of the jaw that of the other (and its associated muscles). This table that we have described is called a unilateral cross bite, as it there is only one side in crossbite.

In the event that the upper arch is noticeably narrower than the bottom there may be a bilateral cross bite. The jaw does not usually take an asymmetric position as the malocclusion is twofold.

- Scissor bitewing in: It’s the reverse of the previous malocclusion. In it, the size of the upper arch is excessive in relation to the arcade below. Thus, the teeth of the lateral sectors (premolars and molars) does not mesh (with cusp fosse), but the upper teeth “bite completely out of the bottom.” It can also be unilateral or bilateral (Brodie syndrome).
- Open bite: It is considered open bite to the situation in which the upper incisors did not cover the bottom. This makes a good jaw function and may make it impossible to bite with incisors in edge to edge.
The open bite too often having to do with a morphological pattern (bone / skeletal) and facial growth, in this case the size of the facial lower third will be increased. It is the pattern dolicofacial. When the third facial is sharply lower longer than the other thirds facial syndrome have a long face.

The development of open bites and long face syndrome also has a large hereditary component, but in this case are also very important alterations in respiratory function (oral breathing, problems with tonsils and adenoids) of swallowing (interposition of tongue between the teeth during swallowing, when there is no physiological teeth), or inappropriate behavior (very prolonged use of pacifiers / bottle, sucking the finger).

Malocclusion can be caused by a malpositions of tooth, but also because of an anomaly in the size or the position of the jaw bone (mandible and maxilla) among themselves. It also can cause mixed.

Malocclusions can very in the space of three planes: transverse (the width of dental arch), anteroposterior and vertical. Another possibility is the discrepancy between the size of the jaw and teeth that have to accommodate, is the so-called discrepancy of bone-tooth. There are also individual tooth malpositions, such as dental rotations. And, of course, it is possible partnership between malocclusions of different levels of space, in fact, sometimes some malocclusions relate to others.
In the event that the upper arch is noticeably narrower than the bottom there may be a bilateral cross bite. The jaw does not usually take an asymmetric position as the malocclusion is twofold.

In addition to an alteration, the malocclusions can pose a cosmetic problem, with all the implications that this entails.

- Deposits on teeth: The teeth can see their color altered by deposition of substances on them, basically remains of food and dental plaque (calcified or not). There are a number of features pigmentations, described as the color or who have specific cause: brown pigmentation (brown, due to poor oral hygiene, but not bacterial), pigmentation smoking habit (very dark, associated with the consumption of snuff), black pigmentation (related to certain bacterial species color formers that metabolize iron salivary forming pigments), the green pigment (especially in children, poor hygiene and in relation to a pigment, the fenacina, which is produced by fluorescent bacteria and fungi), orange pigment ( associated with the presence of bacteria that produce color formers orange pigments), metallic pigments (workers in industry or mines, with environments contaminated with certain metals), pigmentations by drugs (medications with iron can give dark stains, the antiseptic used in oral chlorhexidine periods long-especially if it carries a poor oral hygiene, can lead to brown spots).
Stains or discolorations structural abnormalities are the color effect of a change in the tooth structure.
Highlights the stains on teeth caused by consumption of certain tetracyclines in periods when the teeth are forming. These spots, and very rare in children today can be of various colors, banded (browns and yellows, basically). The disruption is caused by incorporation of tetracycline in the molecules that make up the enamel and dentin. The stains on teeth are caused by ingestion of certain tetracyclines by the mother during pregnancy, and the teeth are final intake of these drugs in children.

There are also color structural abnormalities in patients with general alterations, such as cystic fibrosis or certain Blood Diseases.

Abnormalities in the number
- Agenesis: It is the absence of one or more teeth, which are not formed. Thus, the dentition is incomplete. The most frequent agenesis mainly affecting third molars (Wisdom Teeth), the upper lateral incisors and the lower second premolars.
- Supernumerary teeth: There are more teeth than normal, that is, more than 32 permanent teeth in 20 or more teeth. Sometimes the temporary tooth is between the two central upper incisors, then called mesiodens.

Abnormalities in size
- Macrodoncia: Teeth of a larger size than normal. Can be generalized or localized somewhere.
- Microdontia: Teeth of a size smaller than normal. Can be generalized or localized somewhere.
Abnormalities of the way
- Conoid tooth: They are cone-shaped teeth. It is relatively common to find some upper lateral incisor with this form.
- Cusps tubers and accessories: Some teeth may have more cusps of the anatomically normal, or some excrescence globules.
- Dens in dente: It is very rare. It is a intussusceptions in the dental crown that is widening into the interior of the tooth, and the X-rays appears as if it were a tooth formed within another.
- Enamel pearls: They are small areas of enamel that is APAN on dentin of the root, where the norm is that on the dentin of the root has always cement.
- Alterations to the roots: There are slight variations of the morphological root of the tooth, usually without much clinical significance, since they are not and do not affect the function dental. As example, abnormally curved or termination of the root, root bayonet when the stem ends with this form of zig-zag, convergence root when two or three come together forked roots in the root tips and divergence overreact when they separate from each from the other branch, root and several Pyramid which is when root of a tooth not just branch out but remain merged to form a block pyramid.

Let’s see two anomalies that may correspond to anomalies in the way and also the size, the number even in the case of merger:
- Twinning: A tooth, or at least his crown, it tends to form two teeth / crowns. You can get to give the feeling of supernumerary tooth.
- Fusion: Two teeth are joined to a greater or lesser degree, being able to get to appear as a single tooth. In this case we would not face a agenesis, but the number of teeth would apparently altered.