The curve of Spee deepens with age.

Dr. P. R. Begg described a dental classification system based on the relationship of the permanent first molars.

Protrusion of the maxillary anterior teeth can be caused by tongue-thrusting because improper tongue placement during swallowing exerts powerful pressure against lingual surfaces of anterior teeth.

 Of the following, which is the only acceptable dental term?

 Match the dental anomaly with its correct description.

Small clumps of cells that will later form teeth are called __________.

Figure 3.2 Using Figure 3.2, match the following: Integral protein.

Microvilli and cilia differ in their function, but have the same internal structure. 

The greater the concentration gradient, the faster the diffusion rate. 

Figure 3.2 Using Figure 3.2, match the following: Nonpolar region of phospholipid.