Rivera is a surname of Spanish and Italian origin which was the old spelling of ribera, the Spanish word of âriverbankâ. The name Rivera is a Northern Italian variation of the Southern (Sicily) Ribera name. Other forms of spellings:Riva, Rivero, Riviere, Riba, just to name a few. Rivera is also a French surname.
The first baby teeth to fall out are typically the two bottom front teeth (lower central incisors) and the two top front teeth (upper central incisors), followed by the lateral incisors, molars and canines. Molars typically fall out between ages 9 and 12 and are replaced by permanent teeth by about age 13.
A child's baby teeth falling out and being replaced with their considerably larger adult counterparts is a rite of passage. These miniature choppers, also known as deciduous or primary teeth, typically fall out around the age of 6 -- usually while you're using them. Everyone probably has a story of a baby tooth coming out while you were eating something. If you have a girl, her adult teeth may begin to come in a little sooner.