This specimen of prosthesis is formed of three teeth; the two upper central incisors and the second bicuspid on the left, which is no longer in existence.
To correct protrusion of the upper jaw, the author recommends the extraction of a bicuspid on each side.
In practice it will be found that the angle of the mouth at rest usually corresponds to the interval between the bicuspid teeth.
So you shall gaze: Those happy times will come again.
Carpenter, of Chicago, has a right superior, second bicuspid with three well formed roots.
Considering these stages of development, the grading from the cuspid to the bicuspid forms was more gradual in the earlier species than in the later, where the individual teeth have taken on special development.
The upper and lower are both cone-shaped, and the superior first bicuspid exhibits tendency thereto.
The lingual tubercle is very constant on the first bicuspid of man and is as well developed as the buccal.
When the crowned bicuspid falls within the greatest diameter of these teeth, finding more room within the arch, they naturally slip in the direction of least resistance, i.
Now, if the first molar have moved forward, diminishing the space, the bicuspid must erupt either within or without the arch.
The evolution of this primitive tooth to the bicuspid and molar type has been explained by two theories: that of concrescence and that of differentiation.
From the left auricle, the blood is forced past the bicuspid valve to the left ventricle; thence it is driven through the semilunar valves into the great aorta, the main trunk of the arterial system.
The auriculo-ventricular valve in the left side is composed of two flaps, hence it is called the bicuspid valve; in the right side this valve has three flaps and is called the tricuspid valve.
The valves of the left side are the most subject--the bicuspid or mitral and the aortic or semilunar.
It was the first bicuspid that was missing, and though part of the root of the second (the loose one) would remain after its extraction, he was sure it would not be strong enough to sustain a crown.
He's got an appointment with me to have a bicuspid pulled.