In this type reaction a reactant is replaced by another. The form is like this: A and BC produces AC and B. In this type of reaction, only a single one is replaced by another. Double Replacement: Among the types of reactions and balancing equations this one is very similar to the previous one. The only change is that it has double replacement instead of single replacement.
Extraction of Incisors and Canine Teeth Extraction of the equine incisor and canine teeth requires knowledge of regional and dental anatomy. Incisors are radicular, hypsodont teeth with long reserve crowns that erupt continually throughout the life of the horse. Therefore, as a horse ages incisor extraction should theoretically become easier.
Dental Problems in Young Horses. As with much of the horse's body, the most important age for its mouth is the teething period, where it changes from primary (deciduous or baby) dentition to secondary (permanent or adult) teeth. Between the age of 21/2 and 41/2 years of age, the horse will shed 24 baby teeth â both premolars (cheek) and incisor (front) teeth. These teeth are replaced by adult teeth. The first teeth to change will be the central incisors â both upper and lower. Several months later the second premolars (1st cheek teeth) â upper and lower are shed.